Glycosylation and related congenital defects (Homo sapiens)

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1, 48, 91119Pathological roleof MAGT1 related tomental retardationis questionable.19beta-D-glucoseUDPdolichyl beta-D-mannosyl phosphatedolichyl phosphateUDP-N-acetyl-α-D-glucosamine 153, 1015EndoplasmicReticulumGolgiApparatusDolichyl phosphateGMPPBGDP30.34Man5-GlcNac2-PP-DolDPM215, 18Man8-GlcNac2-PP-DolMan7-GlcNac2-PP-DolMan6-GlcNac2-PP-DolMan9-GlcNac2-PP-DolGlc3Man9-GlcNac2-PP-DolGlc2Man9-GlcNac2-PP-DolGlcMan9-GlcNac2-PP-DolGlc2Man9-GlcNac2-ProtGlc3Man9-GlcNac2-ProtMan3-GlcNac4-ProtMan3-GlcNac3-ProtSia2Gal2Man3-GlcNac4-ProtGal2Man3-GlcNac4-ProtSiaGalMan3-GlcNac3-ProtGDP-mannoseDol-P-ManMannose 6-PhosphateMannose 1-phosphateFructose 6-phosphate16165, 2130.1330.14230.1530.1630.630.330.1030.530.1030.3330.430.230.130.3130.3215Mannosyltransferase-1-deficiency-CDG-IkMannosyltransferase-2-deficiency-CDG-IiSteroid 5 alpha-reductase 2 deficiencyMannosyltransferase4-5 deficiency (ALG11-CDG-Ip)UDP-GlcNac:Dol-P-GlcNac-P transferase deficiency - IjDolichol kinase deficiency - CDG - Im23, 26Man5GIcNAc2-PP-DolDolichol-PPDolichol phosphateDolichol-PPPolyprenol reductase 7, 14, 20Chitobiosyldiphosphodolichol beta-mannosyltransferaseUDP-N-acetylglucosamine-dolichyl-phosphate N-acetylglucosaminephosphotransferaseGDP-Man:Man(3)GlcNAc(2)-PP-Dol alpha-1,2-mannosyltransferaseMan3GIcNAc2-PP-DolMan4GIcNAc2-PP-DolDolichol24, 25PolyprenolMan2GIcNAc2PP-Dol22Mevalonate12ManGlcNAc2-PP-DolAlpha-1,3/1,6-mannosyltransferase ALG2GlcNAcGlcNAc2-PP-DolMannosyltransferase4-5 deficiency (ALG11-CDG-Ip)Mannosyltransferase6 deficiency (CDG-Ic)13Mannosyltransferase 7-9 deficiency (CDG-II)dolichyl phosphate6, 17dolichyl beta-D-mannosyl phosphateGlucosyltransferase 2deficiency (CDG-Ih)Magnesium transporter 1deficiency (MAGT1-CDG)N-acetylglucosaminyltransferase 2deficiency (CDG-IIa)


Description

Glycosylation is the most common postranslational modification. Congenital disorders of glycosylation (CDG) are mainly autosomal recessive defects in such a pathway. Generally, they count to metabolic disorders. Up to date about 50 CDGs have been identified and more are expected to be discovered. The majority of CDG cases show also neurological diseases. However, CDG commonly affect multiple organs. CDGs can be divided into four basic groups depending on where the glycosylation process occurs on the molecule. The group applicable to defects in N-glycosylation, which is depicted in this pathway, takes on 16 out of these 50 known CDGs. N-glycosylation processes spread over three cellular compartments - cytosol, endoplasmic reticulum and Golgi apparatus - wheres other groups are restricted to one. Moreover, the mortality rate of this specific group accounts for 20% within the first year. This, in combination with the limited treatment options for CDG, points out the relevance for further investigations of this pathway.

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Bibliography

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History

View all...
CompareRevisionActionTimeUserComment
128247view23:49, 29 January 2024EweitzSoften disease color, standardize case
128246view23:46, 29 January 2024EweitzModified description
124518view09:51, 4 November 2022DeSlAdded missing Rhea IDs
124517view09:46, 4 November 2022DeSlFinalized book laebl conversion to gene names
124516view09:39, 4 November 2022DeSlStarted updating book labels to gene names for proteins
124515view09:35, 4 November 2022DeSlConverted several side metabolites connections to lines into anchor; increased mim-conversion width for interactions missing a Rhea ID
124514view09:24, 4 November 2022DeSlUpdated OMIM IDs to one structure
119311view13:14, 23 June 2021FinterlyAdded ISBN for book citation
108084view11:51, 28 November 2019FehrhartOntology Term : 'disease pathway' added !
107292view11:41, 19 September 2019EgonwRemove an empty ChEBI identifier
107174view14:26, 17 September 2019MaintBotChEBI identifier normalization
104484view05:30, 29 May 2019EgonwHarmonized the OMIM href URL pattern.
104277view12:19, 15 May 2019Fehrhartremoved "." from title
104247view18:48, 11 May 2019EgonwRemoved the RHEA: prefix from the identifier.
104032view17:44, 25 April 2019IreneHemelModified description
103562view09:54, 15 March 2019EviSchoenmakerALG14 changed from GeneProduct to Protein
103536view10:21, 13 March 2019EviSchoenmakerAdded alternative abbreviations under comments for the diseases
103388view15:22, 25 February 2019EviSchoenmakerLayout change
103387view14:31, 25 February 2019DeSlRemoved weird signs in lit. ref, part 2
103386view14:26, 25 February 2019DeSlRemoved weird signs in lit. ref, part 1
103374view17:56, 24 February 2019EviSchoenmakerCorrected OMIM links
103346view13:04, 22 February 2019DeSlUpdated Rhea for reaction connected to 30.11 (was undirected), added lit.refs for disease and protein.
103316view09:11, 22 February 2019EviSchoenmakerChanged identifers to primary ones as indicated by Jenkins
103291view15:47, 21 February 2019L DupuisAddition of ALG14 gene modulation to ALG13 based on literature
103273view16:46, 20 February 2019EviSchoenmakerCorrection of Rhea's on left side
103269view11:03, 20 February 2019EviSchoenmakerCorrection and addition of identifiers as well as enzymes
103254view15:37, 18 February 2019EviSchoenmakerDescription of some enzymes
103240view09:36, 18 February 2019EviSchoenmakerCorrected location of first two diseases
103239view09:28, 18 February 2019EviSchoenmakerAddition of general reference, and adjustement of comment in 30.1
103237view09:11, 18 February 2019EviSchoenmakerOntology Term : 'N-acetylglucosamine, N-acetylmannosamine and N-acetylneuraminic acid dissimilation pathway' added !
103236view09:08, 18 February 2019EviSchoenmakerOntology Term : 'altered carbohydrate metabolic pathway' added !
103235view09:07, 18 February 2019EviSchoenmakerOntology Term : 'autosomal recessive disease' added !
103234view09:06, 18 February 2019EviSchoenmakerOntology Term : 'inherited metabolic disorder' added !
103232view09:02, 18 February 2019EviSchoenmakerModified description
103230view08:53, 18 February 2019EviSchoenmakerColor change of disease boxes
103216view14:49, 17 February 2019DeSlTyped alpha to avoid weird characters.
103215view14:48, 17 February 2019DeSlChanged arrows for diseases to graphical lines, small layout changes
103180view15:01, 15 February 2019BrittPietersModified description
103178view14:55, 15 February 2019BrittPietersAdded Rhea descriptions
103162view14:23, 15 February 2019EviSchoenmakerAdjusted arrows and boxes
103161view14:21, 15 February 2019EviSchoenmakerMore layout changes
103160view14:20, 15 February 2019EviSchoenmakerEnzyme label into number and general layout
103155view13:19, 15 February 2019EviSchoenmakerAddition of diseases to the right section
103146view09:43, 15 February 2019EviSchoenmakerAddition of diseases right part
103140view08:56, 15 February 2019EviSchoenmakerAdjusted failed literature annotation
103137view08:48, 15 February 2019DeSlAdded info for litref.
103131view14:14, 14 February 2019EviSchoenmakerFurther literature addition to the left part
103130view13:05, 14 February 2019EviSchoenmakerAddition of references to cytosolic part
103129view12:31, 14 February 2019EviSchoenmakerOntology Term : 'congenital disorder of glycosylation' added !
103128view12:29, 14 February 2019EviSchoenmakerModified description

External references

DataNodes

View all...
NameTypeDatabase referenceComment
30.10ProteinQ9H6U8 (Uniprot-TrEMBL) Aka ;mannosyltransferase 7-9
30.13ProteinQ10469 (Uniprot-TrEMBL)
  • AKA MGAT2; N-acetylglucosaminyltransferase 2
  • Function"Plays an essential role in protein N-glycosylation. Catalyzes the transfer of N-acetylglucosamine (GlcNAc) onto the free terminal mannose moiety in the core structure of the nascent N-linked glycan chain, giving rise to the second branch in complex glycans." [https://www.uniprot.org/uniprot/Q10469]
30.14ProteinQ13724 (Uniprot-TrEMBL)
  • AKA GCS1; Glucosidase 1
  • Function:"Cleaves the distal alpha 1,2-linked glucose residue from the Glc3Man9GlcNAc2 oligosaccharide precursor in a highly specific manner." [https://www.uniprot.org/uniprot/Q13724]
30.15ProteinQ13454 (Uniprot-TrEMBL) AKA TUSC3; oligosaccharyltransferase subunit tusc 3
30.16ProteinQ9H0U3 (Uniprot-TrEMBL) Aka MAGT1; magnesium transporter 1
30.1ProteinO15305 (Uniprot-TrEMBL) AKA PMM@, phosphomannomutase 2
30.2ProteinP34949 (Uniprot-TrEMBL) AKA MPI, phosphomannose isomerase
30.31ProteinO60762 (Uniprot-TrEMBL) AKA DPM1, GDP-Man:Dol-P mannosyltransferase subunit 1
30.32ProteinQ9P2X0 (Uniprot-TrEMBL)
  • AKA DPM3, GDP-Man:Dol-P mannosyltransferase 3
  • "Stabilizer subunit of the dolichol-phosphate mannose (DPM) synthase complex; tethers catalytic subunit DPM1 to the ER" [https://www.uniprot.org/uniprot/Q9P2X0]
30.33ProteinO75352 (Uniprot-TrEMBL) AKA MPDU1; Dol-P-Man utilization 1
30.34ProteinP15291 (Uniprot-TrEMBL) AKA B4GALT1; beta-1,4-galactosyltransferase 1
30.3ProteinQ9Y672 (Uniprot-TrEMBL) Aka ALG6; glucosyltransferase 1.
30.4ProteinQ92685 (Uniprot-TrEMBL)
  • AKA ALG3, mannosyltransferase 6
  • Function:"Adds the first Dol-P-Man derived mannose in an alpha-1,3 linkage to Man5GlcNAc2-PP-Dol" [https://www.uniprot.org/uniprot/Q92685]
30.5ProteinQ9BV10 (Uniprot-TrEMBL) AKA ALG12, Mannosyltransferase 8
30.6ProteinQ9BVK2 (Uniprot-TrEMBL) AKA ALG8; Glucosyltransferase 2
Alpha-1,3/1,6- mannosyltransferase ALG2ProteinQ9H553 (Uniprot-TrEMBL)
Chitobiosyldiphosphodolichol beta-mannosyltransferaseProteinQ9BT22 (Uniprot-TrEMBL)
DPM2ProteinO94777 (Uniprot-TrEMBL)
Dol-P-ManMetaboliteCHEBI:58211 (ChEBI)
Dolichol phosphateMetaboliteCHEBI:4693 (ChEBI)
Dolichol-PPMetaboliteCHEBI:4691 (ChEBI) In CheBi known as Dolichol diphosphate
DolicholMetaboliteCHEBI:16091 (ChEBI)
Dolichyl phosphateMetaboliteCHEBI:57683 (ChEBI)
Fructose 6-phosphateMetaboliteCHEBI:61527 (ChEBI)
GDP-Man:Man(3)GlcNAc(2)-PP- Dol alpha-1,2-mannosyltransferaseProteinQ2TAA5 (Uniprot-TrEMBL)
GDP-mannoseMetaboliteCHEBI:57527 (ChEBI)
GDPMetaboliteCHEBI:58189 (ChEBI)
GMPPBProteinQ9Y5P6 (Uniprot-TrEMBL) AKA mannose-1-phosphate guanylyltransferase [https://en.wikipedia.org/wiki/Mannose-1-phosphate_guanylyltransferase]
Gal2Man3-GlcNac4-ProtMetabolite
Glc2Man9-GlcNac2-PP-DolMetaboliteCHEBI:132522 (ChEBI)
Glc2Man9-GlcNac2-ProtMetaboliteCHEBI:59082 (ChEBI)
Glc3Man9-GlcNac2-PP-DolMetabolite
Glc3Man9-GlcNac2-ProtMetaboliteCHEBI:132537 (ChEBI)
GlcMan9-GlcNac2-PP-DolMetaboliteCHEBI:132521 (ChEBI)
GlcNAc2-PP-DolMetaboliteCHEBI:57269 (ChEBI) Aka N-acetylglucosamine
GlcNAcMetaboliteCHEBI:506227 (ChEBI) Aka N-acetylglucosamine
Man2GIcNAc2PP-DolMetaboliteCHEBI:132510 (ChEBI)
Man3-GlcNac3-ProtMetaboliteCHEBI:60615 (ChEBI)
Man3-GlcNac4-ProtMetaboliteCHEBI:60615 (ChEBI)
Man3GIcNAc2-PP-DolMetaboliteCHEBI:132511 (ChEBI)
Man4GIcNAc2-PP-DolMetabolite
Man5-GlcNac2-PP-DolMetaboliteCHEBI:132516 (ChEBI)
Man5GIcNAc2-PP-DolMetaboliteCHEBI:132515 (ChEBI)
Man6-GlcNac2-PP-DolMetabolite
Man7-GlcNac2-PP-DolMetaboliteCHEBI:132517 (ChEBI)
Man8-GlcNac2-PP-DolMetaboliteCHEBI:132519 (ChEBI)
Man9-GlcNac2-PP-DolMetaboliteCHEBI:132520 (ChEBI)
ManGlcNAc2-PP-Dol MetaboliteCHEBI:58472 (ChEBI)
Mannose 1-phosphateMetaboliteCHEBI:58409 (ChEBI)
Mannose 6-PhosphateMetaboliteCHEBI:58735 (ChEBI)
MevalonateMetaboliteCHEBI:345 (ChEBI)
Polyprenol reductase ProteinQ9H8P0 (Uniprot-TrEMBL)
PolyprenolMetaboliteCHEBI:26199 (ChEBI)
Sia2Gal2Man3-GlcNac4-ProtMetabolite
SiaGalMan3-GlcNac3-ProtMetabolite
UDP-N-acetyl -α-D-glucosamine MetaboliteCHEBI:57705 (ChEBI)
UDP-N-acetylglucosamine-dolichyl-phosphate N-acetylglucosaminephosphotransferaseProteinQ9H3H5 (Uniprot-TrEMBL)
UDPMetaboliteCHEBI:58223 (ChEBI)
beta-D-glucoseMetaboliteCHEBI:15903 (ChEBI)
dolichyl

beta-D-mannosyl

phosphate		MetaboliteCHEBI:58211 (ChEBI)
dolichyl phosphateMetaboliteCHEBI:57683 (ChEBI)

Annotated Interactions

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SourceTargetTypeDatabase referenceComment
Fructose 6-phosphateMannose 6-Phosphatemim-conversionRHEA:12358 (Rhea)
GDP-mannoseDol-P-ManArrowRHEA:21185 (Rhea)
Glc3Man9-GlcNac2-ProtGlc2Man9-GlcNac2-Protmim-conversionRHEA:55989 (Rhea)
GlcMan9-GlcNac2-PP-DolGlc2Man9-GlcNac2-PP-Dolmim-conversionRHEA:31308 (Rhea)
GlcNAc2-PP-DolManGlcNAc2-PP-Dol mim-conversionRHEA:13865 (Rhea)
GlcNAc2-PP-Dolmim-conversionRHEA:13289 (Rhea)
Man3-GlcNac3-ProtMan3-GlcNac4-Protmim-conversionRHEA:12942 (Rhea)
Man3GIcNAc2-PP-DolMan4GIcNAc2-PP-Dolmim-conversionRHEA:29523 (Rhea)
Man4GIcNAc2-PP-DolMan5GIcNAc2-PP-Dolmim-conversionRHEA:29523 (Rhea)
Man5GIcNAc2-PP-DolMan5-GlcNac2-PP-Dolmim-conversionRHEA:29528 (Rhea)
Man7-GlcNac2-PP-DolMan8-GlcNac2-PP-Dolmim-conversionRHEA:29536 (Rhea)
Man8-GlcNac2-PP-DolMan9-GlcNac2-PP-Dolmim-conversionRHEA:29540 (Rhea)
Man9-GlcNac2-PP-DolGlcMan9-GlcNac2-PP-Dolmim-conversionRHEA:30636 (Rhea)
ManGlcNAc2-PP-Dol Man2GIcNAc2PP-Dolmim-conversionRHEA:29515 (Rhea)
Mannose 6-PhosphateMannose 1-phosphatemim-conversionRHEA:11142 (Rhea)
MevalonatePolyprenolmim-conversionRHEA:54384 (Rhea)
beta-D-glucosemim-conversionRHEA:55989 (Rhea)
dolichyl

beta-D-mannosyl

phosphate		mim-conversionRHEA:29528 (Rhea)
dolichyl

beta-D-mannosyl

phosphate		mim-conversionRHEA:29540 (Rhea)
dolichyl phosphatemim-conversionRHEA:29528 (Rhea)
dolichyl phosphatemim-conversionRHEA:29540 (Rhea)
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