Cysteine sulfinic acid

Cysteine sulfinic acid

Names
IUPAC name 2-amino-3-sulfinopropanoic acid
Identifiers
CAS Number	2381-08-0 Y
ChEBI	CHEBI:16345 N
ChemSpider	1266065 N
IUPHAR/BPS	5447
Jmol 3D model	Interactive image
MeSH	cysteine+sulfinic+acid
PubChem	1549098
InChI InChI=1S/C3H7NO4S/c4-2(3(5)6)1-9(7)8/h2H,1,4H2,(H,5,6)(H,7,8)/t2-/m0/s1 N Key: ADVPTQAUNPRNPO-REOHCLBHSA-N N InChI=1/C3H7NO4S/c4-2(3(5)6)1-9(7)8/h2H,1,4H2,(H,5,6)(H,7,8)/t2-/m0/s1 Key: ADVPTQAUNPRNPO-REOHCLBHBM
SMILES O=C(O)[C@@H](N)CS(=O)O
Properties
Chemical formula	C3H7NO4S
Molar mass	153.15698
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

Cysteine sulfinic acid is an amino acid containing a sulfinic acid functional group. It is a white solid that is soluble in water. It is an intermediate in cysteine metabolism. It is not a coded amino acid, but is produced post-translationally. Its formation is catalyzed by the enzyme cysteine dioxygenase.

Proteins containing this residue are found at the active site of some nitrile hydratases.