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The chemical reactions and pathways involving amino acids, organic acids containing one or more amino substituents. The chemical reactions and pathways involving the nonmetallic element sulfur or compounds that contain sulfur, such as the amino acids methionine and cysteine or the tripeptide glutathione. The interconversion of homocysteine and cysteine via cystathionine. In contrast with enteric bacteria and mammals, Saccharomyces cerevisiae has two transsulfuration pathways employing two separate sets of enzymes. The chemical reactions and pathways involving amino acids containing sulfur, comprising cysteine, homocysteine, methionine and selenocysteine. The chemical reactions and pathways resulting in the formation of homocysteine, 2-amino-4-sulfanylbutanoic acid. The chemical reactions and pathways resulting in the breakdown of homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. Any process that stops, prevents or reduces the frequency, rate or extent of the chemical reactions and pathways involving homocysteine. Any process that modulates the frequency, rate or extent of the chemical reactions and pathways involving homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. The chemical reactions and pathways involving homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. Homocysteine is an important intermediate in the metabolic reactions of its S-methyl derivative, methionine. Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways involving homocysteine.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: homocysteine metabolic process
Acc: GO:0050667
Aspect: Biological Process
Desc: The chemical reactions and pathways involving homocysteine, the amino acid alpha-amino-gamma-mercaptobutanoic acid. Homocysteine is an important intermediate in the metabolic reactions of its S-methyl derivative, methionine.
Synonyms:
  • Hcy metabolism
  • Hcy metabolic process
  • homocysteine metabolism
Proteins in PDR annotated with:
   This term: 6 [Search]
   Term or descendants: 13 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0050667 - homocysteine metabolic process (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle