Cyanoalanine

Cyanoalanine
Names
	IUPAC name (2S)-2-Amino-3-cyanopropanoic acid
	Other names 3-Cyano-L-alanine; β-Cyanoalanine; 3-Cyanoalanine
Identifiers
CAS Number	6232-19-5;
3D model (JSmol)	Interactive image;
3DMet	B01594;
ChEBI	CHEBI:132546;
ChemSpider	388802;
KEGG	C02512;
PubChem CID	439742;
CompTox Dashboard (EPA)	DTXSID90977873 ;
	InChI InChI=1S/C4H6N2O2/c5-2-1-3(6)4(7)8/h3H,1,6H2,(H,7,8)/t3-/m0/s1; Key: BXRLWGXPSRYJDZ-VKHMYHEASA-N;
	SMILES C(C#N)C(C(=O)O)N;
Properties
Chemical formula	C4H6N2O2
Molar mass	114.104 g·mol−1
Appearance	White solid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

Cyanoalanine (more accurately β-Cyano-L-alanine) is an amino acid with the formula NCCH₂CH(NH₂)CO₂H. Like most amino acids, it exists as a tautomer NCCH₂CH(NH₃⁺)CO₂⁻. It is a rare example of a nitrile-containing amino acid. It is a white, water-soluble solid.

Cyanoalanine arises in nature by the action of cyanide on cysteine catalyzed by L-3-cyanoalanine synthase:[1]

HSCH₂CH(NH₂)CO₂H + HCN → NCCH₂CH(NH₂)CO₂H + H₂S

It is converted to asparagine enzymatically.

References

By Gupta, Neha; Balomajumder, Chandrajit; Agarwal, V. K. (2010). "Enzymatic mechanism and biochemistry for cyanide degradation: A review". Journal of Hazardous Materials. 176 (1–3): 1–13. doi:10.1016/j.jhazmat.2009.11.038. PMID 20004515.CS1 maint: uses authors parameter (link)

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[1] By Gupta, Neha; Balomajumder, Chandrajit; Agarwal, V. K. (2010). "Enzymatic mechanism and biochemistry for cyanide degradation: A review". Journal of Hazardous Materials. 176 (1–3): 1–13. doi:10.1016/j.jhazmat.2009.11.038. PMID 20004515.CS1 maint: uses authors parameter (link)