From WikiPathways

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On http://sparql.wikipathways.org/ WikiPathways content is replicated in a SPARQL endpoint. Queries can be performed in three ways:

1. Either go to the endpoint directly and create your own SPARQL query.

2. Copy and paste an example query listed below in the endpoint.

3. Adapt a code examples to programmatically make a SPARQL query

This project is written up in the "Using the Semantic Web for Rapid Integration of WikiPathways with Other Biological Online Data Resources" paper.

Resources

WikiPathways internal vocabularies: http://vocabularies.wikipathways.org
WikiPathways SPARQL endpoint http://sparql.wikipathways.org/sparql

Identifiers.org: https://identifiers.org
Sparqlbin http://sparqlbin.org
Searches prefixes: http://prefix.cc

Submit ideas

Prefixes

Within the example queries, we have omitted the prefixes. These prefixes are automatically used in the SPARQL endpoint. The following prefixes are used in the WikiPathways RDF:

PREFIX gpml:    <http://vocabularies.wikipathways.org/gpml#>
PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX cur:     <http://vocabularies.wikipathways.org/wp#Curation:>
PREFIX wprdf:   <http://rdf.wikipathways.org/>
PREFIX biopax:  <http://www.biopax.org/release/biopax-level3.owl#> 
PREFIX cas:     <https://identifiers.org/cas/>
PREFIX dc:      <http://purl.org/dc/elements/1.1/> 
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX foaf:    <http://xmlns.com/foaf/0.1/> 
PREFIX ncbigene:<https://identifiers.org/ncbigene/>
PREFIX pubmed:  <http://www.ncbi.nlm.nih.gov/pubmed/> 
PREFIX rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX skos:    <http://www.w3.org/2004/02/skos/core#>
PREFIX xsd:     <http://www.w3.org/2001/XMLSchema#>

Example queries

Queries with a * require a bit more time for results.

Metadata queries

List the information about the data sets in the SPARQL endpoint:

select distinct ?dataset (str(?titleLit) as ?title) ?date ?license where {
  ?dataset a void:Dataset ;
    dcterms:title ?titleLit ;
    dcterms:license ?license ;
    pav:createdOn ?date .
}

Execute

Pathway oriented queries

Get the species currently in WikiPathways with their respective URI's

PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wp: <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?organism (str(?label) as ?name)
WHERE {
    ?concept wp:organism ?organism ;
      wp:organismName ?label .
}

Execute

List pathways and their species

PREFIX dc:      <http://purl.org/dc/elements/1.1/> 
PREFIX wp:     <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT (str(?title) as ?pathway) (str(?label) as ?organism)
WHERE {
    ?pw dc:title ?title ;
      wp:organism ?organism ;
      wp:organismName ?label .
}

Execute

List the species captured in WikiPathways and the number of pathways per species

PREFIX dc:      <http://purl.org/dc/elements/1.1/> 
PREFIX wp: <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?organism (str(?label) as ?name) (count(?pw) as ?pathwayCount)
WHERE {
    ?pw dc:title ?title ;
      wp:organism ?organism ;
      wp:organismName ?label .
}
ORDER BY DESC(?pathwayCount)

Execute

List all pathways for species "Mus musculus"

The following query list all mouse pathways. ?wpIdentifier is the link through identifiers.org, ?pathway points to the RDF version of WikiPathways and ?page is the revision which is loaded in the SPARQL endpoint.

PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dc:      <http://purl.org/dc/elements/1.1/> 
PREFIX foaf:    <http://xmlns.com/foaf/0.1/> 
PREFIX wp: <http://vocabularies.wikipathways.org/wp#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

SELECT DISTINCT ?wpIdentifier ?pathway ?page
WHERE {
    ?pathway dc:title ?title .
    ?pathway foaf:page ?page .
    ?pathway dc:identifier ?wpIdentifier .
    ?pathway wp:organismName "Mus musculus"^^xsd:string .
 }
ORDER BY ?wpIdentifier

Execute Perl

Get all pathways with a particular gene

List all pathways per instance of a particular gene or protein (wp:GeneProduct)

PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dcterms: <http://purl.org/dc/terms/>

SELECT DISTINCT ?pathway (str(?label) as ?geneProduct)
WHERE {
    ?geneProduct a wp:GeneProduct . 
    ?geneProduct rdfs:label ?label .
    ?geneProduct dcterms:isPartOf ?pathway .
    ?pathway a wp:Pathway .
    
    FILTER regex(str(?label), "CYP"). 
}

Execute

Get all groups and complexes containing a particular gene

List all groups and complexes per instance of a particular gene or protein (wp:GeneProduct)

PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dcterms: <http://purl.org/dc/terms/>

SELECT DISTINCT ?pathway (str(?label) as ?geneProduct)
WHERE {
    ?geneProduct a wp:GeneProduct . 
    ?geneProduct rdfs:label ?label .
    ?geneProduct dcterms:isPartOf ?pathway .

    FILTER NOT EXISTS { ?pathway a wp:Interaction } .
    FILTER NOT EXISTS { ?pathway a wp:Pathway } .
    FILTER regex(str(?label), "CYP"). 
}

Execute

Get all the genes on a particular pathway

List all the genes and proteins (wp:GeneProduct) associated with a particular pathway WPID.

PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dcterms: <http://purl.org/dc/terms/>

select distinct ?pathway (str(?label) as ?geneProduct) where {
    ?geneProduct a wp:GeneProduct . 
    ?geneProduct rdfs:label ?label .
    ?geneProduct dcterms:isPartOf ?pathway .
    ?pathway a wp:Pathway .
    ?pathway dcterms:identifier "WP1560"^^xsd:string . 
}

Execute

Count the number of pathways per ontology term

In WikiPathways, pathways can be tagged with ontology terms from Pathway, Cell Line and Disease ontology. The following query returns a pathway count for each term from any of the available ontologies. These terms are collectively modeled as wp:pathwayOntology; but this includes all ontologies, not just the "Pathway" ontology.

SELECT DISTINCT ?pwOntologyTerm count(?pwOntologyTerm) as ?pathwayCount
 WHERE {
	?pathwayRDF wp:ontologyTag ?pwOntologyTerm .
 }
 ORDER BY DESC(?pathwayCount)

Execute

Get all pathways with a particular ontology term

In WikiPathways, pathways can be tagged with ontology terms from Pathway, Cell Line and Disease ontology. The following query returns a list of pathways tagged with PW_0000296.

PREFIX obo: <http://purl.obolibrary.org/obo/>

SELECT ?pathway (str(?titleLit) AS ?title)
WHERE {
  ?pathwayRDF wp:ontologyTag obo:PW_0000296 ;
              foaf:page ?pathway ;
              dc:title ?titleLit .
}

Execute

Get all ontology terms for a particular pathway

List all the ontology terms tagged on a particular pathway.

SELECT (?o as ?pwOntologyTerm) (str(?titleLit) as ?title) ?pathway 
WHERE {
  ?pathwayRDF wp:ontologyTag ?o ;
    foaf:page ?pathway ;
    dc:title ?titleLit ;
    dcterms:identifier "WP1560"^^xsd:string . 

  FILTER (! regex(str(?pathway), "group"))
}

Execute

Get all Reactome pathways

List all the ontology terms tagged on a particular pathway.

PREFIX cur: <http://vocabularies.wikipathways.org/wp#Curation:>

SELECT DISTINCT ?pathway (str(?titleLit) as ?title)
WHERE {
  ?pathway wp:ontologyTag cur:Reactome_Approved ;
           dc:title ?titleLit .
}

Execute

Get all Proteins from Community pathways

Obtain all Protein DataNodes (so not GeneProducts) from specific communities. Note: All community tags are available in the WikiPathways SPARQL endpoint now, except for the Lipids one (will be available from the 2020-12-10 RDF data release!)

PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX cur: <http://vocabularies.wikipathways.org/wp#Curation:>

SELECT DISTINCT ?pathway (str(?label) as ?Protein)
WHERE {
  ?pathway wp:ontologyTag    cur:Lipids   ; # Other communities: AOP; CIRM_Related ; COVID19 ; Blau ; RareDiseases ; SGD_Approved ; WormBase_Approved
           a                 wp:Pathway . 

  ?protein a                 wp:Protein ; 
           rdfs:label        ?label     ;
           dcterms:isPartOf  ?pathway   .

}

Execute

Get all pathways with Pubmed references

SELECT DISTINCT ?pathway ?pubmed 
WHERE 
     {?pubmed a       wp:PublicationReference . 
      ?pubmed dcterms:isPartOf ?pathway }
ORDER BY ?pathway

Execute

Get all pathways with a particular Pubmed reference

SELECT DISTINCT ?pathway ?pubmed 
WHERE {
      ?pubmed a       wp:PublicationReference . 
      ?pubmed dcterms:isPartOf ?pathway .

      FILTER regex(str(?pubmed), "14769483$") 
}
ORDER BY ?pathway

The $ at the end of the PubMed identifier ensures that, for example, 147694831 does not match too; the regex instruction '$' means "end of the string".

Execute

Get all pathways and the number of refences per pathway

SELECT DISTINCT ?pathway COUNT(?pubmed) AS ?numberOfReferences
WHERE 
     {?pubmed a       wp:PublicationReference . 
      ?pubmed dcterms:isPartOf ?pathway }
ORDER BY DESC(?numberOfReferences)

Execute

Get a full dump of all pathways and their pathway ontological terms

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX dc:  <http://purl.org/dc/elements/1.1/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX schema: <http://schema.org/>
PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX dcterms:  <http://purl.org/dc/terms/>

SELECT DISTINCT ?depicts (str(?titleLit) as ?title) (str(?speciesLabelLit) as ?speciesLabel) ?identifier ?ontology
WHERE {
	?pathway foaf:page ?depicts .
        ?pathway dc:title ?titleLit .
        ?pathway wp:organism ?species .
        ?pathway wp:organismName ?speciesLabelLit .
        ?pathway dc:identifier ?identifier .

        OPTIONAL {?pathway wp:ontologyTag ?ontology .}
}

Execute

Count how many genes from a list occur in one or more pathways

The gene list is given in the line starting with VALUES. For this example, we use the HGNC gene nomenclature. Other gene IDs can be used to fill the list; however keep in mind they use different URLs and therefor the prefix (first line of Query) should be adapted. A list of these URLs can be found on identifiers.org (or by looking at the "raw" RDF files).

prefix hgnc:      <https://identifiers.org/hgnc.symbol/>
select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (count(distinct ?hgncId) AS ?GenesInPWs)
where {
VALUES ?hgncId {hgnc:GPD1L hgnc:SCN3B hgnc:BAD}
  ?gene a wp:GeneProduct ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbHgncSymbol ?hgncId .
  ?pathwayRes a wp:Pathway ;
              wp:organismName "Homo sapiens"^^xsd:string ; 
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

ORDER BY DESC(?GenesInPWs)

Execute

LIPID MAPS related queries:

Count amount of lipids per pathways in WikiPathways with LIPID MAPS identifier

Converts all Metabolite identifiers to LipidMaps (provided by BridgeDb), and create an ordered list of pathways including lipid compounds.

prefix lipidmaps:      <https://identifiers.org/lipidmaps/>
select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (count(distinct ?lipidID) AS ?LipidsInPWs)
where {
  ?metabolite a wp:Metabolite ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbLipidMaps ?lipidID .
  ?pathwayRes a wp:Pathway ;
              wp:organismName "Homo sapiens"^^xsd:string ; 
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

ORDER BY DESC(?LipidsInPWs)

Execute

Count amount of lipids per LIPID MAPS ontology class

Counts unique LIPID MAPS identifier (provided by BridgeDb) for the Fatty Acid (FA) class, other examples are provided as a comment.

select count(distinct ?lipidID) as ?IndividualLipidsPerClass_FA
where {     ?metabolite a wp:Metabolite ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbLipidMaps ?lipidID .
  ?pathwayRes a wp:Pathway ;
              wp:organismName "Homo sapiens"^^xsd:string ; 
    dcterms:identifier ?wpid ;
    dc:title ?title .
  FILTER regex(str(?lipidID), "FA" ). #Other classes: GL, GP, SP, ST, PR, SL, PK
}

Execute

Find pathways per LIPID MAPS ontology class, sorted on amount of unique lipids

Filter all unique LIPID MAPS identifier (provided by BridgeDb) for the Fatty Acid (FA) class, and find all pathways with individual lipids in there.

select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (count(distinct ?lipidID) AS ?FA_LipidsInPWs)
where {     ?metabolite a wp:Metabolite ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbLipidMaps ?lipidID .
  ?pathwayRes a wp:Pathway ;
              wp:organismName "Homo sapiens"^^xsd:string ; 
    dcterms:identifier ?wpid ;
    dc:title ?title .
  FILTER regex(str(?lipidID), "FA" ). #Fatty Acids, Other classes: GL, GP, SP, ST, PR, SL, PK
}

ORDER BY DESC(?FA_LipidsInPWs)

Execute

Data statistics oriented queries

Count the number of metabolites per species

Though strictly speaking, it guesstimates it, because it counts the number of unique metabolite identifiers. Normalization in the RDF generation code ensures we do not double count metabolites with identifiers from different databases, but it still differentially counts metabolites with different charge states.

PREFIX gpml:    <http://vocabularies.wikipathways.org/gpml#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX dc:      <http://purl.org/dc/elements/1.1/>
PREFIX rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 

select (count(distinct ?metabolite) as ?count) (str(?label) as ?species) where {
  ?metabolite a wp:Metabolite ;
    dcterms:isPartOf ?pw .
  ?pw dc:title ?title ;
    wp:organism ?organism ;
    wp:organismName ?label .
} GROUP BY ?label ORDER BY DESC(?count)

Execute

Interaction oriented queries

Get all interactions for a particular datanode

Find all interactions that are connected to a particular datanode. (wp:Interaction).

PREFIX gpml:    <http://vocabularies.wikipathways.org/gpml#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX dc:      <http://purl.org/dc/elements/1.1/>
PREFIX rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 

#Find all interactions that are connected to a particular datanode.

SELECT DISTINCT ?interaction ?pathway  WHERE {

   ?pathway a wp:Pathway .
   ?interaction dcterms:isPartOf ?pathway . 
   ?interaction a wp:Interaction . 
   ?interaction wp:participants <https://identifiers.org/ensembl/ENSG00000125845> .   
}

Execute

Find all datanodes (GeneProducts, Metabolites, Pathways) that are connected to a particular datanode via any type of interaction (wp:Interaction)

SELECT DISTINCT ?participants ?DataNodeLabel ?interaction WHERE {
   ?interaction a wp:Interaction .
   
   ?interaction wp:participants <https://identifiers.org/ensembl/ENSG00000125845> .   
   ?interaction wp:participants ?participants .
   ?participants a wp:DataNode .
   ?participants rdfs:label ?DataNodeLabel .   
}

Execute

Get all interactions for a particular pathway

PREFIX wp:    <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?pathway ?interaction   
WHERE {

   ?pathway a wp:Pathway .
   ?pathway dc:identifier <https://identifiers.org/wikipathways/WP1425> .
   ?interaction dcterms:isPartOf ?pathway . 
   ?interaction a wp:Interaction .  
}

Execute

Get all interactions for a particular pathway and their participants

PREFIX wp:    <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?pathway ?interaction ?participants ?DataNodeLabel
WHERE {

   ?pathway a wp:Pathway .
   ?pathway dc:identifier <https://identifiers.org/wikipathways/WP1425> .
   ?interaction dcterms:isPartOf ?pathway . 
   ?interaction a wp:Interaction .
   ?interaction wp:participants ?participants .
   ?participants a wp:DataNode .
   ?participants rdfs:label ?DataNodeLabel .  
}

Execute

Get all Interactions

Limited to 1000 interactions.

PREFIX wp:    <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?pathway ?interaction ?participant
WHERE {

   ?pathway a wp:Pathway . 
   ?interaction dcterms:isPartOf ?pathway .
   ?interaction a wp:Interaction .
   ?interaction wp:participants ?participant . 
}

LIMIT 1000

Execute

Get all Interactions for a species (Homo sapiens)

PREFIX wp:    <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?pathway ?interaction   
WHERE {

   ?pathway a wp:Pathway .
   ?pathway wp:organismName "Homo sapiens"^^xsd:string . 
   ?interaction dcterms:isPartOf ?pathway . 
   ?interaction a wp:Interaction .  
}

Execute

Get downstream adjacent nodes from a source

A directed interaction always runs from source to target. (eg. s --> t)

PREFIX wp:    <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?source ?label ?target ?label1 ?pathway ?interaction
WHERE {
    ?source dc:identifier <https://identifiers.org/ensembl/ENSG00000125845> .
    ?source dcterms:isPartOf ?pathway .
    ?pathway a wp:Pathway .

    ?interaction dcterms:isPartOf ?pathway .
    ?interaction a wp:Interaction .
    ?interaction wp:source ?source .
    ?interaction wp:target ?target .

    ?source rdfs:label ?label .
    ?target rdfs:label ?label1 .
 }

Execute

Get upstream adjacent nodes from a target

A directed interaction always runs from source to target. (eg. t <-- s)

PREFIX wp:    <http://vocabularies.wikipathways.org/wp#>

SELECT DISTINCT ?target ?label1 ?source ?label ?pathway ?interaction
WHERE {
    ?target dc:identifier <https://identifiers.org/ncbigene/659> .
    ?target dcterms:isPartOf ?pathway .
    ?pathway a wp:Pathway .

    ?interaction dcterms:isPartOf ?pathway .
    ?interaction a wp:Interaction .
    ?interaction wp:target ?target .
    ?interaction wp:source ?source .

    ?target rdfs:label ?label1 .
    ?source rdfs:label ?label .  
 }

Execute

Get the number of interactions with some data source

PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX dc:      <http://purl.org/dc/elements/1.1/>

SELECT DISTINCT (STR(?sourceLit) AS ?source) (COUNT(DISTINCT ?identifier) AS ?count)
WHERE {
    ?interaction a                  wp:Interaction ;
                 dcterms:identifier ?identifier ;
                 dc:source          ?sourceLit .
} GROUP BY ?sourceLit
  ORDER BY DESC(?count)

Get the number of normalized identifiers by data source

This query gives some idea of how the interaction identifier mapping database works in practice:

PREFIX wp:      <http://vocabularies.wikipathways.org/wp#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX dc:      <http://purl.org/dc/elements/1.1/>

SELECT DISTINCT (STR(?sourceLit) AS ?source) ?normalizedIdentifier (COUNT(DISTINCT ?identifier) AS ?count)
WHERE {
  VALUES ?normalizedIdentifier { wp:bdbRhea wp:bdbReactome }
  ?interaction ?normalizedIdentifier ?identifier ;
               dc:source ?sourceLit .
} GROUP BY ?sourceLit ?normalizedIdentifier
  ORDER BY DESC(?count) ?source

Datasource oriented queries

Get all datasources currently captured in WikiPathways

SELECT DISTINCT (str(?datasourceLit) as ?datasource)
WHERE {
         ?concept dc:source ?datasourceLit
}

Execute

Get the number of entries per datasource in WikiPathways

SELECT DISTINCT (str(?datasourceLit) as ?datasource) (count(?dataNode) as ?numberEntries)
WHERE {
  ?concept dc:source ?datasourceLit ;
    wp:isAbout ?dataNode .
} 
ORDER BY DESC(?numberEntries)

Execute

Count the identifiers per data source

SELECT (str(?datasourceLit) as ?datasource) (count(distinct ?identifier) AS ?numberEntries)
WHERE {
  ?concept dc:source ?datasourceLit .
  ?concept dc:identifier ?identifier
}

Execute

Count the identifiers per data source and order them from high to low

SELECT (str(?datasourceLit) as ?datasource) (count(distinct ?identifier) AS ?numberEntries)
WHERE {
  ?concept dc:source ?datasourceLit .
  ?concept dc:identifier ?identifier
} ORDER BY DESC(?numberEntries)

Execute

Return all compounds annotated with the "ChEMBL compound" as data source and the pathways they are in

SELECT DISTINCT ?identifier ?pathway
WHERE {
        ?concept dcterms:isPartOf ?pathway .
        ?concept dc:source "ChEMBL compound"^^xsd:string .
        ?concept dc:identifier ?identifier .
        
}

Execute

Curators oriented queries

Get the pathway with the erroneous data source "null"

SELECT DISTINCT  ?identifier ?pathway ?label
WHERE {
        ?concept dc:source "null"^^xsd:string .
        ?concept dc:identifier ?identifier .
        ?concept dcterms:isPartOf ?pathway .
        ?concept rdfs:label ?label
}

sparqlbin Execute

Get all geneproducts that lack either a DataSource or an Identifier

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms:  <http://purl.org/dc/terms/>

select distinct ?pathway ?label where {?geneProduct a wp:GeneProduct . 
      ?geneProduct rdfs:label ?label .
      ?geneProduct dcterms:isPartOf ?pathway .
      
      FILTER regex(str(?geneProduct), "^node"). 
      FILTER regex(str(?pathway), "^http").
      }

Execute

Get entities with more than one identifier

select ?entity count(?identifier) as ?count where {
  ?entity <http://purl.org/dc/terms/identifier> ?identifier .
} order by desc(?count)

Execute

PubChem-compound 1004

Warning: may time out, which indicates there is no current use of this identifier value.

Wrongly used for phosphate. It is the uncharged compound. Phosphate is, instead, and particularly thinkgs like "Pi", CID 1061 for ortho-phosphate, aka [PO4]2-.

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms:  <http://purl.org/dc/terms/>
prefix xsd:     <http://www.w3.org/2001/XMLSchema#>

select ?pathway ?source
where {
  ?mb dc:source ?source ;
    dcterms:isPartOf ?pathway ;
    dcterms:identifier "1004"^^xsd:string .
}

Execute

Outdated HMDB identifiers

These results show HMDB identifiers used in WikiPathways but that are revoked or have become secondary identifiers.

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms:  <http://purl.org/dc/terms/>

select distinct (str(?identifierStr) as ?identifier)
where {
  ?mb a wp:Metabolite ;
    dc:source "HMDB"^^xsd:string ;
    dcterms:identifier ?identifierStr .
  OPTIONAL { ?mb  wp:bdbHmdb ?bridgedb . }
  FILTER (!BOUND(?bridgedb))
} order by ?identifierStr

Execute

Metabolites not classified as such

One can list all data sources for non-metabolites with this query.

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms:  <http://purl.org/dc/terms/>

select (str(?datasourceLit) as ?datasource) (count(?identifier) as ?count)
where {
  ?mb dc:source ?datasourceLit ;
    dcterms:identifier ?identifier .
  FILTER NOT EXISTS { ?mb a wp:Metabolite }
} order by desc(?count)

Execute

That mostly lists gene identifier sources, etc, but watch out for the metabolite identifier data sources. For example, metabolites not marked as such but with a metabolite identifier can be found this way. Down the list is CAS (but genes are chemicals too...), and a few minor more:

HMDB 		4
ChEBI 		3
GLYCAN 		3
COMPOUND 	3
PubChem 	2

I would expect GLYCAN and COMPOUND to be misnomers of the matching KEGG subsets.

Metabolites sometimes marked as DataNode@Type Metabolite

Based on label comparisons, we can find things that are labeled the same as a data node with the same label. Of course, this can give false positives, because genes can be incorrectly marked as metabolite in some pathway, but that is another SPARQL query. Another reasons is that sometimes genes and metabolites actually have the same name!

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms:  <http://purl.org/dc/terms/>
prefix xsd:     <http://www.w3.org/2001/XMLSchema#>

select ?pathway ?nonmb ?mb (str(?labelLit) as ?label)
where {
  ?nonmb rdfs:label ?labelLit .
  ?mb rdfs:label ?labelLit .
  ?nonmb dcterms:isPartOf ?pathway .
  FILTER ( ?nonmb != ?mb )
  FILTER NOT EXISTS { ?nonmb a wp:Metabolite }
  FILTER EXISTS { ?pathway a wp:Pathway }
  FILTER EXISTS { ?mb a wp:Metabolite }
}

Execute

Metabolites with too many labels

This query can result in false positives too, particularly with the new RDF.

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms:  <http://purl.org/dc/terms/>

select distinct ?mb count(distinct ?labelLit) as ?labelCount
where {
  ?mb a wp:Metabolite ;
    rdfs:label ?labelLit ;
    dcterms:isPartOf ?pathway .
  ?pathway a wp:Pathway .
} order by desc(?labelCount) ?mb

Execute

And get the actual labels (and more) with:

describe <https://identifiers.org/hmdb/HMDB0002174>

Execute

Or use this one, but mind that pathway/label combinations are combinatorial, because they share the same node:

select distinct ?pathway (str(?labelLit) as ?label)
where {
  <https://identifiers.org/hmdb/HMDB0001401> a wp:Metabolite;
    rdfs:label ?labelLit ;
    dcterms:isPartOf ?pathway .
  ?pathway a wp:Pathway .
} order by ?pathway

Execute

Metabolites with an Entrez Gene identifier

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms: <http://purl.org/dc/terms/>
prefix xsd:     <http://www.w3.org/2001/XMLSchema#>

select distinct ?pathway ?mb (str(?labelLit) as ?label) (str(?identifierLit) as ?identifier)
where {
  ?mb a wp:Metabolite ;
    rdfs:label ?labelLit ;
    dc:source "Entrez Gene"^^xsd:string ;
    dcterms:identifier ?identifierLit ;
    dcterms:isPartOf ?pathway .
  ?pathway a wp:Pathway .
} order by ?pathway

Execute

Metabolites without a link to Wikidata

PREFIX wdt: <http://www.wikidata.org/prop/direct/>

SELECT DISTINCT ?metabolite WHERE {
  ?metabolite a wp:Metabolite .
  OPTIONAL { ?metabolite wp:bdbWikidata ?wikidata . }
  FILTER (!BOUND(?wikidata))
}

Execute

A variant sorting the metabolites by the number of pathways they occur in:

PREFIX wdt: <http://www.wikidata.org/prop/direct/>

SELECT ?metabolite (count(DISTINCT ?pathwayRes) as ?pathways) WHERE {
  ?metabolite a wp:Metabolite ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes .
  ?pathwayRes a wp:Pathway .
  OPTIONAL { ?metabolite wp:bdbWikidata ?wikidata . }
  FILTER (!BOUND(?wikidata))
} GROUP BY ?metabolite ORDER BY DESC(?pathways)

Execute

And finally, finding double mappings to Wikidata:

PREFIX wdt: <http://www.wikidata.org/prop/direct/>

SELECT DISTINCT ?metaboliteID (GROUP_CONCAT(DISTINCT ?wikidata;separator=", ") AS ?results) WHERE {
  ?metaboliteID a wp:Metabolite .
  ?metaboliteID wp:bdbWikidata ?wikidata .
  ?metaboliteID wp:bdbWikidata ?wikidata2 .
  FILTER(?wikidata != ?wikidata2)
} GROUP BY ?metaboliteID

Execute

Pathways without (annotated) datanodes

prefix wp:      <http://vocabularies.wikipathways.org/wp#>
prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
prefix dcterms: <http://purl.org/dc/terms/>
prefix xsd:     <http://www.w3.org/2001/XMLSchema#>

SELECT DISTINCT ?pathway
WHERE{
?pathway a wp:Pathway.
FILTER NOT EXISTS {?node dcterms:isPartOf ?pathway.
?node a wp:DataNode}
}

Execute

Pathways without literature references

SELECT (STR(?speciesLabelLit) AS ?species) (STR(?titleLit) AS ?title) ?pathway WHERE {
  ?pathway a wp:Pathway ; dc:title ?titleLit ; wp:organismName ?speciesLabelLit .
  MINUS { ?pubmed a       wp:PublicationReference .
          ?pubmed dcterms:isPartOf ?pathway }
} ORDER BY ASC(?species) ASC(?title)

Execute

Or if you just want to know how many these are:

SELECT count(DISTINCT ?pathway) WHERE {
  ?pathway a wp:Pathway ; dc:title ?titleLit ; wp:organismName ?speciesLabelLit .
  MINUS { ?pubmed a       wp:PublicationReference .
          ?pubmed dcterms:isPartOf ?pathway }
}

Execute

Literature queries

Articles cited by Reactome but not by WikiPathways

PREFIX cur: <http://vocabularies.wikipathways.org/wp#Curation:>

SELECT (COUNT(DISTINCT ?pubmed) AS ?count)
WHERE {
  ?pubmed a       wp:PublicationReference .
  MINUS { ?pubmed dcterms:isPartOf/wp:ontologyTag cur:AnalysisCollection }
  { ?pubmed dcterms:isPartOf/wp:ontologyTag cur:Reactome_Approved }
}

Execute

Articles cited by WikiPathways but not by Reactome

PREFIX cur: <http://vocabularies.wikipathways.org/wp#Curation:>

SELECT (COUNT(DISTINCT ?pubmed) AS ?count)
WHERE {
  ?pubmed a       wp:PublicationReference .
  { ?pubmed dcterms:isPartOf/wp:ontologyTag cur:AnalysisCollection }
  MINUS { ?pubmed dcterms:isPartOf/wp:ontologyTag cur:Reactome_Approved }
}

Execute

Articles cited by both Reactome and WikiPathways

PREFIX cur: <http://vocabularies.wikipathways.org/wp#Curation:>

SELECT (COUNT(DISTINCT ?pubmed) AS ?count)
WHERE {
  ?pubmed a       wp:PublicationReference .
  { ?pubmed dcterms:isPartOf/wp:ontologyTag cur:AnalysisCollection }
  { ?pubmed dcterms:isPartOf/wp:ontologyTag cur:Reactome_Approved }
}

Execute

Federated queries - !Under Construction!

Other SPARQL endpoints used in the federated queries

Note that the EBI endpoints are not maintained and therefore do not yield results at the moment. We created a mirror for the ChEMBL endpoint at:

ChEMBL: https://chemblmirror.rdf.bigcat-bioinformatics.org/ (old: https://www.ebi.ac.uk/rdf/services/sparql and http://rdf.farmbio.uu.se/chembl/sparql/ ).

Down/unavailable (EVI):

Arrayexpress Atlas: http://wwwdev.ebi.ac.uk/fgpt/gxa-sparql/index.jsp
Reactome endpoint.

Other endpoints:

Gene Wiki: http://genewiki.semwebinsi.de
Text mining from Fraunhofer Institutes at University of Bonn: http://ops-virtuoso.scai.fraunhofer.de:8893/sparql
Wikidata

WikiPathways with ChEMBL: all ChEMBL assays for pathways

PREFIX chembl: <http://rdf.ebi.ac.uk/terms/chembl#>

SELECT ?pathway ?ensembl ?assay WHERE {
  {
    SELECT DISTINCT
      ?pathway ?ensembl
    WHERE {
      VALUES ?ensembl { <https://identifiers.org/ensembl/ENSG00000150093> }
      ?s wp:bdbEnsembl ?ensembl ;
         dcterms:isPartOf ?pathway .
    }
  }
  SERVICE <https://chemblmirror.rdf.bigcat-bioinformatics.org/sparql>  {
    OPTIONAL { ?assay a chembl:Assay ;
      chembl:hasTarget/chembl:hasTargetComponent/chembl:targetCmptXref ?ensembl . }
  }
} limit 100

Execute

WikiPathways with ChEMBL: all molecules targeting pathways

Here a limit is used too.

PREFIX chembl: <http://rdf.ebi.ac.uk/terms/chembl#>
PREFIX sio:    <http://semanticscience.org/resource/>

SELECT ?pathway ?ensembl ?molecule ?smiles WHERE {
  {
    SELECT DISTINCT
      ?pathway ?ensembl
    WHERE {
      ?s wp:bdbEnsembl ?ensembl ;
         dcterms:isPartOf ?pathway .
      ?pathway dcterms:identifier "WP15"^^xsd:string .
    }
  }
  SERVICE <https://chemblmirror.rdf.bigcat-bioinformatics.org/sparql>  {
    SELECT DISTINCT ?ensembl ?molecule ?smiles WHERE {
      ?assay a chembl:Assay ; chembl:hasTarget/chembl:hasTargetComponent/chembl:targetCmptXref ?ensembl .
      ?activity chembl:hasAssay ?assay ;
                chembl:hasMolecule ?molecule .
      OPTIONAL { ?molecule sio:SIO_000008 ?attrib . ?attrib a sio:CHEMINF_000018 ; sio:SIO_000300 ?smiles . }
    } limit 100
  }
}

WikiPathways with EBI Atlas RDF - !Under Construction!

Genes differentially expressed in asthma and Pathways

For the genes differentially expressed in asthma, get the gene products associated to a WikiPathways pathway. (Built upon example query 5 in: http://www.ebi.ac.uk/rdf/services/atlas/sparql ). You can substitute the EFO number for other disease codes.

PREFIX identifiers:<https://identifiers.org/ensembl/>
PREFIX atlas: <http://rdf.ebi.ac.uk/resource/atlas/>
PREFIX atlasterms: <http://rdf.ebi.ac.uk/terms/atlas/>
PREFIX efo: <http://www.ebi.ac.uk/efo/>

SELECT DISTINCT ?wpURL ?pwTitle ?expressionValue ?pvalue where {

SERVICE <https://www.ebi.ac.uk/rdf/services/atlas/sparql> {
     ?factor rdf:type efo:EFO_0000270 . 
     ?value atlasterms:hasFactorValue ?factor . 
     ?value atlasterms:isMeasurementOf ?probe . 
     ?value atlasterms:pValue ?pvalue . 
     ?value rdfs:label ?expressionValue . 
     ?probe atlasterms:dbXref ?dbXref .
}
     ?pwElement dcterms:isPartOf ?pathway .
     ?pathway dc:title ?pwTitle .
     ?pathway dc:identifier ?wpURL .
     ?pwElement wp:bdbEnsembl ?dbXref .
}
ORDER BY ASC(?pvalue)

Execute

Genes differentially expressed in type II diabetes mellitus and Pathways

PREFIX identifiers:<https://identifiers.org/ensembl/>
PREFIX atlas: <http://rdf.ebi.ac.uk/resource/atlas/>
PREFIX atlasterms: <http://rdf.ebi.ac.uk/terms/atlas/>
PREFIX efo: <http://www.ebi.ac.uk/efo/>

SELECT DISTINCT ?wpURL ?pwTitle ?expressionValue ?pvalue where {

SERVICE <https://www.ebi.ac.uk/rdf/services/atlas/sparql> {
     ?factor rdf:type efo:EFO_0001360 . 
     ?value atlasterms:hasFactorValue ?factor . 
     ?value atlasterms:isMeasurementOf ?probe . 
     ?value atlasterms:pValue ?pvalue . 
     ?value rdfs:label ?expressionValue . 
     ?probe atlasterms:dbXref ?dbXref .
}
     ?pwElement dcterms:isPartOf ?pathway .
     ?pathway dc:title ?pwTitle .
     ?pathway dc:identifier ?wpURL .
     ?pwElement wp:bdbEnsembl ?dbXref .
}
ORDER BY ASC(?pvalue)

Execute

Genes differentially expressed in obesity and Pathways

PREFIX identifiers:<https://identifiers.org/ensembl/>
PREFIX atlas: <http://rdf.ebi.ac.uk/resource/atlas/>
PREFIX atlasterms: <http://rdf.ebi.ac.uk/terms/atlas/>
PREFIX efo: <http://www.ebi.ac.uk/efo/>

SELECT DISTINCT ?wpURL ?pwTitle ?expressionValue ?pvalue where {
SERVICE <https://www.ebi.ac.uk/rdf/services/atlas/sparql> {
     ?factor rdf:type efo:EFO_0001073 . 
     ?value atlasterms:hasFactorValue ?factor . 
     ?value atlasterms:isMeasurementOf ?probe . 
     ?value atlasterms:pValue ?pvalue . 
     ?value rdfs:label ?expressionValue . 
     ?probe atlasterms:dbXref ?dbXref .
}
     ?pwElement dcterms:isPartOf ?pathway .
     ?pathway dc:title ?pwTitle .
     ?pathway dc:identifier ?wpURL .
     ?pwElement wp:bdbEnsembl ?dbXref .
}
ORDER BY ASC(?pvalue)

Execute

WikiPathways with Wikidata - !Under Construction!

The following queries are run on the WikiPathways SPARQL endpoint. But you can run federated queries on the Wikidata SPARQL endpoint too. Example queries for that are found here.

Metabolites in Wikipedia with InChIKeys from Wikidata

The corresponding query on Wikidata is here.

PREFIX wdt: <http://www.wikidata.org/prop/direct/>

SELECT ?metabolite ?wikidata ?inchikey WHERE {
  {
    SELECT ?metabolite ?wikidata WHERE {
      ?metabolite a wp:Metabolite ;
        wp:bdbWikidata ?wikidata .
    } LIMIT 50
  }
  SERVICE <https://query.wikidata.org/sparql> {
    ?wikidata wdt:P235 ?inchikey .
  }
} LIMIT 50

Execute

Identifier to WikiPathways lists

List of WikiPathways for Ensembl identifiers

select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (fn:substring(?ensId,32) as ?ensembl) where {
  ?gene a wp:GeneProduct ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbEnsembl ?ensId .
  ?pathwayRes a wp:Pathway ;
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

Execute

List of WikiPathways for HGNC symbols

select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (fn:substring(?hgncId,36) as ?HGNC) where {
  ?gene a wp:GeneProduct ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbHgncSymbol ?hgncId .
  ?pathwayRes a wp:Pathway ;
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

Execute

List of WikiPathways for NCBI Gene identifiers

select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (fn:substring(?ncbiGeneId,33) as ?NCBIGene) where {
  ?gene a wp:GeneProduct ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbEntrezGene ?ncbiGeneId .
  ?pathwayRes a wp:Pathway ;
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

Execute

List of WikiPathways for HMDB identifiers

select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (fn:substring(?hmdbId,29) as ?hmdb) where {
  ?gene a wp:Metabolite ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbHmdb ?hmdbId .
  ?pathwayRes a wp:Pathway ;
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

Execute

List of WikiPathways for ChemSpider identifiers

select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (fn:substring(?csId,35) as ?chemspider) where {
  ?gene a wp:Metabolite ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbChemspider ?csId .
  ?pathwayRes a wp:Pathway ;
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

Execute

List of WikiPathways for PubChem CID identifiers

select distinct ?pathwayRes (str(?wpid) as ?pathway) (str(?title) as ?pathwayTitle) (fn:substring(?cid,46) as ?PubChem) where {
  ?gene a wp:Metabolite ;
    dcterms:identifier ?id ;
    dcterms:isPartOf ?pathwayRes ;
    wp:bdbPubChem ?cid .
  ?pathwayRes a wp:Pathway ;
    dcterms:identifier ?wpid ;
    dc:title ?title .
}

Execute

Code examples

Perl

There is an RDF api available. Below is an example that extracts the data by converting the query into a url and extracts the data as CSV.

#!/usr/bin/perl
 
use LWP::Simple;
use URI::Escape;
my $sparql = "SELECT DISTINCT ?wpIdentifier ?elementneedsattention ?elementLabel
WHERE {
    ?pathway dc:title ?title .
    ?elementneedsattention a gpml:requiresCurationAttention .
    ?elementneedsattention dcterms:isPartOf ?pathway .
    ?elementneedsattention rdfs:label ?elementLabel . 
    ?pathway wp:organism ?organism .
    ?pathway foaf:page ?page .
    ?pathway dc:identifier ?wpIdentifier .
    ?organism rdfs:label \"Mus musculus\"^^<http://www.w3.org/2001/XMLSchema#string> .
 }
ORDER BY ?wpIdentifier";
 
my $url = 'http://sparql.wikipathways.org/sparql?default-graph-uri=&query='.uri_escape($sparql).'&format=text%2Fcsv&timeout=0&debug=on';
 
my $content = get $url;
die "Couldn't get $url" unless defined $content;
 
print $content;

Java

For java we recommend the Jena Framework.

import com.hp.hpl.jena.query.Query;
import com.hp.hpl.jena.query.QueryExecution;
import com.hp.hpl.jena.query.QueryExecutionFactory;
import com.hp.hpl.jena.query.QueryFactory;
import com.hp.hpl.jena.query.QuerySolution;
import com.hp.hpl.jena.query.ResultSet;

public class javaCodeExample {

	public static void main(String[] args) {
		String sparqlQueryString = "SELECT * WHERE {?s ?p ?o} LIMIT 10";
		Query query = QueryFactory.create(sparqlQueryString);
		QueryExecution queryExecution = QueryExecutionFactory.sparqlService("http://sparql.wikipathways.org/sparql", query);
		ResultSet resultSet = queryExecution.execSelect();
		while (resultSet.hasNext()) {
			QuerySolution solution = resultSet.next();
			System.out.print(solution.get("s"));
			System.out.print("\t"+solution.get("p"));
			System.out.println("\t"+solution.get("o"));
		}
	}
}

php

For php we recommend the arc2: Easy RDF and SPARQL for LAMP systems

R

The R package rrdf can be found and installed from https://github.com/egonw/rrdf.

   library(rrdf)
   sparql.remote(
     "http://sparql.wikipathways.org/sparql",
     "SELECT DISTINCT ?p WHERE { ?s ?p ?o }"
   )

Bioclipse

The below code works in both the JavaScript and the Groovy console:

   rdf.sparqlRemote(
     "http://sparql.wikipathways.org/sparql",
     "SELECT DISTINCT ?p WHERE { ?s ?p ?o }"
   )

SPARQL from the command line

For quick and easy querying, we recommend to use curl (Linux and OS X)

curl -F "query=SELECT * WHERE {?s ?p ?o} LIMIT 10" http://sparql.wikipathways.org/sparql

Return to Help Contents

Help:WikiPathways SPARQL queries

From WikiPathways

Contents

Resources

Submit ideas

Prefixes

Example queries

Metadata queries

Pathway oriented queries

Get the species currently in WikiPathways with their respective URI's

List pathways and their species

List the species captured in WikiPathways and the number of pathways per species

List all pathways for species "Mus musculus"

Get all pathways with a particular gene

Get all groups and complexes containing a particular gene

Get all the genes on a particular pathway

Count the number of pathways per ontology term

Get all pathways with a particular ontology term

Get all ontology terms for a particular pathway

Get all Reactome pathways

Get all Proteins from Community pathways

Get all pathways with Pubmed references

Get all pathways with a particular Pubmed reference

Get all pathways and the number of refences per pathway

Get a full dump of all pathways and their pathway ontological terms

Count how many genes from a list occur in one or more pathways

LIPID MAPS related queries:

Count amount of lipids per pathways in WikiPathways with LIPID MAPS identifier

Count amount of lipids per LIPID MAPS ontology class

Find pathways per LIPID MAPS ontology class, sorted on amount of unique lipids

Data statistics oriented queries

Count the number of metabolites per species

Interaction oriented queries

Get all interactions for a particular datanode

Find all datanodes (GeneProducts, Metabolites, Pathways) that are connected to a particular datanode via any type of interaction (wp:Interaction)

Get all interactions for a particular pathway

Get all interactions for a particular pathway and their participants

Get all Interactions

Get all Interactions for a species (Homo sapiens)

Get downstream adjacent nodes from a source

Get upstream adjacent nodes from a target

Get the number of interactions with some data source

Get the number of normalized identifiers by data source

Datasource oriented queries

Get all datasources currently captured in WikiPathways

Get the number of entries per datasource in WikiPathways

Count the identifiers per data source

Count the identifiers per data source and order them from high to low

Return all compounds annotated with the "ChEMBL compound" as data source and the pathways they are in

Curators oriented queries

Get the pathway with the erroneous data source "null"

Get all geneproducts that lack either a DataSource or an Identifier

Get entities with more than one identifier

PubChem-compound 1004

Outdated HMDB identifiers

Metabolites not classified as such

Metabolites sometimes marked as DataNode@Type Metabolite

Metabolites with too many labels

Metabolites with an Entrez Gene identifier

Metabolites without a link to Wikidata

Pathways without (annotated) datanodes

Pathways without literature references

Literature queries

Articles cited by Reactome but not by WikiPathways

Articles cited by WikiPathways but not by Reactome

Articles cited by both Reactome and WikiPathways

Federated queries - !Under Construction!

Other SPARQL endpoints used in the federated queries

WikiPathways with ChEMBL: all ChEMBL assays for pathways

WikiPathways with ChEMBL: all molecules targeting pathways

WikiPathways with EBI Atlas RDF - !Under Construction!

Genes differentially expressed in asthma and Pathways

Genes differentially expressed in type II diabetes mellitus and Pathways

Genes differentially expressed in obesity and Pathways

WikiPathways with Wikidata - !Under Construction!

Metabolites in Wikipedia with InChIKeys from Wikidata

Identifier to WikiPathways lists

List of WikiPathways for Ensembl identifiers

List of WikiPathways for HGNC symbols

List of WikiPathways for NCBI Gene identifiers