O-Acetylserine

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O-Acetylserine
O-acetylserine.png
Identifiers
CAS number 5147-00-2 N, 66638-22-0 (HCl)
PubChem 189
ChemSpider 184 YesY
DrugBank DB01837
ChEBI CHEBI:17981 N
Jmol-3D images Image 1
Properties
Molecular formula C5H9NO4
Molar mass 147.13 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N (verify) (what is: YesY/N?)
Infobox references

O-Acetylserine is the α-amino acid with the chemical formula HO2CCH(NH2)CH2OC(O)CH3. It is an intermediate in the biosynthesis of the common amino acid cysteine in bacteria and plants. O-Acetylserine is biosynthesized by acetylation of the serine by the enzyme serine transacetylase. The enzyme O-acetylserine (thiol)-lyase, using sulfide sources, converts this ester into cysteine, releasing acetate:[1]

HO2CCH(NH2)CH2OH → HO2CCH(NH2)CH2OC(O)CH3
HO2CCH(NH2)CH2OC(O)CH3 → HO2CCH(NH2)CH2SH

References[edit]

  1. ^ Hell, R. (1997). "Molecular physiology of plant sulfur metabolism". Planta 202 (2): 138–148. doi:10.1007/s004250050112. PMID 9202491.  edit