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GO:0009853 photorespiration

A light-dependent catabolic process occurring concomitantly with photosynthesis in plants (especially C3 plants) whereby dioxygen (O2) is consumed and carbon dioxide (CO2) is evolved. The substrate is glycolate formed in large quantities in chloroplasts from 2-phosphoglycolate generated from ribulose 1,5-bisphosphate by the action of ribulose-bisphosphate carboxylase; the glycolate enters the peroxisomes where it is converted by glycolate oxidase to glyoxylate which undergoes transamination to glycine. This then passes into the mitochondria where it is decarboxylated forming one molecule of serine for every two molecules of glycine. This pathway also exists in photosynthetic bacteria.

Term Information

ID GO:0009853
Name photorespiration
Ontology Biological Process
Definition A light-dependent catabolic process occurring concomitantly with photosynthesis in plants (especially C3 plants) whereby dioxygen (O2) is consumed and carbon dioxide (CO2) is evolved. The substrate is glycolate formed in large quantities in chloroplasts from 2-phosphoglycolate generated from ribulose 1,5-bisphosphate by the action of ribulose-bisphosphate carboxylase; the glycolate enters the peroxisomes where it is converted by glycolate oxidase to glyoxylate which undergoes transamination to glycine. This then passes into the mitochondria where it is decarboxylated forming one molecule of serine for every two molecules of glycine. This pathway also exists in photosynthetic bacteria.
Comment

Cross-references associated with this term:

Database ID
Wikipedia Photorespiration
MetaCyc PWY-181

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Ancestor Table

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GO:0008150 biological_process
GO:0008152 metabolic process
GO:0009987 cellular process
GO:0009058 biosynthetic process
GO:0044237 cellular metabolic process
GO:0044249 cellular biosynthetic process
GO:0043094 cellular metabolic compound salvage
GO:0009853 photorespiration

Relationship key

Code Relationship
part of
is a
regulates
+ve regulates
-ve regulates

Child Terms

All direct descendants (child terms) available for this GO term:
P GO:0009854 oxidative photosynthetic carbon pathway
R GO:0080093 regulation of photorespiration

Relationship key

CodeRelationship
Ppart of
Iis a

Protein Annotation

DB
ID
Qualifier colocalizes_with contributes_to NOT NOT|colocalizes_with NOT|contributes_to
GO Term
Reference
Evidence IMP IGI IPI IGC ISS IDA IEP IEA TAS NAS ND IC RCA ISA EXP
With
Taxonomy
From
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Format

Co-occurring Terms

Co-occurrence statistics

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IMP IGI IPI IGC ISS IDA IEP IEA TAS NAS ND IC RCA ISA EXP Statistics may take up to 1 minute to calculate
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15ms
Stand-alone
Hostnametomcat-8.ebi.ac.uk
Uptime17:46 13/10/2009
Data version2009-11-21-04-03-45
Terminal
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