S.cerevisiae - Yeastract

Gene Ontology Information

Protein Name	Cys4p
Description	Cystathionine beta-synthase; catalyzes synthesis of cystathionine from serine and homocysteine, the first committed step in cysteine biosynthesis; responsible for hydrogen sulfide generation; advances passage through START by promoting cell growth which requires catalytic activity, and reducing critical cell size independent of catalytic activity; mutations in human ortholog CBS cause homocystinuria; human CBS can complement yeast null mutant
GO Terms: Biological Process	level 5: cellular amino acid biosynthetic process level 6: hydrogen sulfide biosynthetic process level 7: cysteine biosynthetic process level 7: transsulfuration level 8: cysteine biosynthetic process via cystathionine level 8: cysteine biosynthetic process from serine level 10: traversing start control point of mitotic cell cycle
GO Terms: Molecular Function	level 3: lyase activity level 6: mRNA binding level 6: cystathionine beta-synthase activity
GO Terms: Cellular Component	level 3: cytoplasm level 4: mitochondrion level 5: cytoplasmic stress granule
External source	Open in SGD