CysCys – L-cysteinyl-L-cysteine

Name
WID	CysCys
Name	L-cysteinyl-L-cysteine
Traditional name	2-(2-amino-3-sulfanylpropanamido)-3-sulfanylpropanoic acid
IUPAC name	2-(2-amino-3-sulfanylpropanamido)-3-sulfanylpropanoic acid
Cross references	PubChem: 10251455

Classification
Type	dipeptide

Structure
Empirical formula (pH 7.5)	H₁₂C₆N₂O₃S₂
SMILES (pH 7.5)	C(C(C(=O)NC(CS)C(=O)O)N)S
Charge (pH 7.5)	0
Is hydrophobic	False
Molecular weight (Da)	224.30
van der Waals volume (pH 7.5; Å³ molecule^‑1)	186.84
pI	5.98
logP	-3.72
logD (pH 7.5)	-3.77

Concentrations
Media composition (SP4; mM)	3.18

Function
Reaction participant	Protein degradation (CYS) [c]: ATP + CysCys + (2) H2O ⇒ ADP + (2) CYS + H + PI Protein polymerization (Cys) [c]: (2) CYS ⇒ CysCys + H2O Protein degradation (CYS) [c]: ATP + CysCys + (2) H2O ⇒ ADP + (2) CYS + H + PI Dipeptide import (Cys-Cys) [c]: CysCys + H2O ⇒ (2) CYS oligopeptide (Cys) transport via ABC system ATP[c] + CysCys[e] + H2O[c] ⇒ ADP[c] + CysCys[c] + H[c] + PI[c]

Metadata
Created	2012-10-01 15:06:53
Last updated	2012-10-01 15:12:00