SuCComBase

GO:0003962

MF

cystathionine gamma-synthase activity

Catalysis of the reaction: O-succinyl-L-homoserine + L-cysteine = cystathionine + succinate.

GO:0004121

MF

cystathionine beta-lyase activity

Catalysis of the reaction: cystathionine + H2O = L-homocysteine + NH3 + pyruvate.

GO:0004123

MF

cystathionine gamma-lyase activity

Catalysis of the reaction: L-cystathionine + H2O = 2-oxobutanoate + L-cysteine + NH4+.

GO:0009507

CC

chloroplast

A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.

GO:0009570

CC

chloroplast stroma

The space enclosed by the double membrane of a chloroplast but excluding the thylakoid space. It contains DNA, ribosomes and some temporary products of photosynthesis.

GO:0016829

MF

lyase activity

Catalysis of the cleavage of C-C, C-O, C-N and other bonds by other means than by hydrolysis or oxidation, or conversely adding a group to a double bond. They differ from other enzymes in that two substrates are involved in one reaction direction, but onl

GO:0019279

BP

L-methionine biosynthetic process from L-homoserine via cystathionine

The chemical reactions and pathways resulting in the formation of L-methionine from other compounds, including L-homoserine, via the intermediate cystathionine.

GO:0019343

BP

cysteine biosynthetic process via cystathionine

The chemical reactions and pathways resulting in the formation of cysteine, via the intermediate cystathionine.

GO:0019346

BP

transsulfuration

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.

GO:0030170

MF

pyridoxal phosphate binding

Interacting selectively and non-covalently with pyridoxal 5' phosphate, 3-hydroxy-5-(hydroxymethyl)-2-methyl4-pyridine carboxaldehyde 5' phosphate, the biologically active form of vitamin B6.

GO:0071266

BP

'de novo' L-methionine biosynthetic process

The chemical reactions and pathways resulting in the formation of L-methionine, the L-enantiomer of (2S)-2-amino-4-(methylsulfanyl)butanoic acid, from simpler components.