Glycine cleavage (Saccharomyces cerevisiae)

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ArcPathVisio Brace Ellipse EndoplasmicReticulum GolgiApparatus HexagonPathVisio MimDegradation Mitochondria Octagon PentagonPathVisio Rectangle RoundedRectangle SarcoplasmicReticulum TriangleEquilateralEast TrianglePathVisio none GCV2a [glycine-cleavage complex H protein] N6-aminomethyldihydrolipoyl-L-lysinea [glycine-cleavage complex H protein] N6-lipoyl-L-lysineTHFNAD+CO2a [glycine-cleavage complex H protein] N6-dihydrolipoyl-L-lysineLPD1GCV15,10-methylene-THFNH4+L-glycineH+NADHH+Name: Glycine cleavageOrganism: Saccharomyces cerevisiae


Description

In eukaryotes the mitochondrial glycine cleavage complex (glycine decarboxylase complex) is a loosely-associated multienzyme complex that catalyzes the oxidative cleavage of glycine to carbon dioxide, ammonia, and a methylene group, in a multistep reaction (in [Nakai05]). The methylene group, carried by 5,10-methylenetetrahydropteroyl mono-L-glutamate, enters cellular one-carbon metabolism. In mammals, it is the primary pathway for glycine catabolism [Hampson83].

The glycine cleavage complex is composed of four different proteins: the P-protein ( EC 1.4.4.2, glycine dehydrogenase (aminomethyl-transferring)); the T-protein ( EC 2.1.2.10, aminomethyltransferase); the L-protein ( EC 1.8.1.4, dihydrolipoyl dehydrogenase); and the H-protein (lipoyl-carrier protein, a non-enzyme that contains a lipoyl group that interacts successively with the three other components of the complex during the enzymatic reactions. The L-protein (also known as the E3 component) also participates in the pyruvate decarboxylation to acetyl CoA, the 2-oxoglutarate decarboxylation to succinyl-CoA, and the 2-oxoisovalerate decarboxylation to isobutanoyl-CoA multienzyme systems.

Description from [YeastPathways](https://pathway.yeastgenome.org/).

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Quality Tags

Ontology Terms

Pathway Ontology : Wnt signaling pathway
Cell Type : embryonic stem cell
 

Bibliography

  1. ''glycine cleavage''; YeastPathways,

History

View all...
CompareRevisionActionTimeUserComment
138050view11:46, 13 March 2025EweitzClear dimension cache
138040view23:56, 12 March 2025KhanspersOntology Term : 'classic metabolic pathway' added !
138039view23:55, 12 March 2025Khanspersremoved GenMAPP comments
138038view23:55, 12 March 2025KhanspersModified description
138037view23:53, 12 March 2025Khanspersupdate board height
138036view23:52, 12 March 2025Khanspersdecrease board height
138035view23:52, 12 March 2025Khanspersupdated reference
138034view23:51, 12 March 2025Khanspersupdate based on YeastPathways
117303view11:17, 20 May 2021EweitzModified title
71005view16:28, 22 September 2013EgonwAdded metabolite identifiers and connected dots.
69858view17:16, 11 July 2013EgonwMarked a few DataNodes with CAS registry numbers as metabolites.
69601view20:32, 8 July 2013MaintBotUpdated to 2013 gpml schema
67300view10:33, 26 June 2013Christine ChichesterOntology Term : 'glycine degradation pathway' added !
41832view04:50, 2 March 2011MaintBotRemoved redundant pathway information and comments
21403view11:31, 14 November 2008MaintBot[[Pathway:Saccharomyces cerevisiae:Glycine Degradation]] moved to [[Pathway:WP345]]: Moved to stable identifier
12732view08:00, 17 May 2008MaintBotautomated metabolite conversion
8759view14:08, 7 January 2008MaintBotAdded to category $category
8757view14:08, 7 January 2008J.HeckmanUploaded new pathway

External references

DataNodes

View all...
Name  ↓Type  ↓Database reference  ↓Comment  ↓
5,10-methylene-THFMetabolite31690-11-6 (CAS)
CO2MetaboliteCHEBI:16526 (ChEBI)
GCV1GeneProductS000002426 (SGD)
GCV2GeneProductS000004801 (SGD)
H+Metabolite15378 (ChEBI)
L-glycineMetabolite56-40-6 (CAS)
LPD1GeneProductS000001876 (SGD)
NAD+Metabolite57540 (ChEBI)
NADHMetabolite57945 (ChEBI)
NH4+Metabolite28938 (ChEBI)
THFMetaboliteCHEBI:26911 (ChEBI)
a [glycine-cleavage complex H protein] N6-aminomethyldihydrolipoyl-L-lysine Metabolite
a [glycine-cleavage complex H protein] N6-dihydrolipoyl-L-lysine Metabolite
a [glycine-cleavage complex H protein] N6-lipoyl-L-lysineMetabolite

Annotated Interactions

No annotated interactions

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