Cysteine

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L-Cysteine
L-Cystein - L-Cysteine.svg
L-cysteine-3D-balls2.png
L-cysteine-3D-vdW2.png
Names
IUPAC name
Cysteine
Ither names
2-Amino-3-sulfhydrylpropanoic acid
Identifiers
Jmol-3D images Image
Image
ChEBI CHEBI:15356 YesY
ChEMBL ChEMBL54943 YesY
ChemSpider 574 (Racemic) YesY
5653 (L-form) YesY
ECHA InfoCard 100.000.145
EC Nummer 200-158-2
E nummer E920 (glazin agents, ...)
KEGG D00026 YesY
UNII K848JZ4886 YesY
Properties[2]
C3H7NO2S
Molar mass 121.15 g·mol−1
Appearance white creestals or pouder
Meltin pynt 240 °C (464 °F; 513 K) decompones
soluble
Solubility 1.5g/100g ethanol 19 degC [1]
Chiral rotation [α]D +9.4° (H2O, c = 1.3)
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
YesY verify (whit is YesYN ?)
Infobox references

Cysteine (abbreviatit as Cys or C)[3] is a semi-essential[4] proteinogenic amino acid wi the formula HO2CCH(NH2)CH2SH.

References[eedit | eedit soorce]

  1. Belitz, H.-D; Grosch, Werner; Schieberle, Peter (2009-02-27). Food Chemistry. ISBN 9783540699330 
  2. Weast, Robert C., ed. (1981). CRC Handbook of Chemistry and Physics (62nd ed.). Boca Raton, FL: CRC Press. p. C-259. ISBN 0-8493-0462-8. .
  3. "Nomenclature and symbolism for amino acids and peptides (IUPAC-IUB Recommendations 1983)", Pure Appl. Chem., 56 (5): 595–624, 1984, doi:10.1351/pac198456050595 
  4. "The primary structure of proteins is the amino acid sequence". The Microbial World. University of Wisconsin-Madison Bacteriology Department. Retrieved 16 September 2012.