In enzymology, a cysteine synthase (EC 2.5.1.47) is an enzyme that catalyzes the chemical reaction O3-acetyl-L-serine + hydrogen sulfide ⇌ {\displaystyle...

transacetylase. The enzyme cysteine synthase, using sulfide sources, converts this ester into cysteine, releasing acetate. The cysteine sulfhydryl group is nucleophilic...

common use include: β-thionase, cysteine synthase, L-serine hydro-lyase (adding homocysteine), methylcysteine synthase, serine sulfhydrase, and serine...

synthase (EC 4.5.1.5) catalyzes the reaction 3-chloro-L-alanine + thioglycolate ⇌ {\displaystyle \rightleftharpoons } S-carboxymethyl-L-cysteine + chloride...

from L-glutamate and L-cysteine. This conversion requires the enzyme glutamate–cysteine ligase (GCL, glutamate cysteine synthase). This reaction is the...

Cysteine metabolism refers to the biological pathways that consume or create cysteine. The pathways of different amino acids and other metabolites interweave...

succinyl group of a homoserine with cysteine via its thiol group to form cystathionine (catalysed by cystathionine γ-synthase, which is encoded by metB in E...

cystathionine beta-synthase activity, i.e. those who have adequate CBS activity typically respond to B6 . Occasionally adding cysteine[citation needed]to...

sulfurylase) is an enzyme with systematic name persulfurated L-cysteine desulfurase:(molybdopterin-synthase sulfur-carrier protein)-Gly-Gly sulfurtransferase. This...

characteristic reaction of β-ketoacyl-ACP synthase III is malonyl-ACP + acetyl-CoA => acetoacyl-ACP + CO2 + CoA. Cysteine, histidine, and asparagine form the...