Structure of thialysine hydrochloride.
2-Ammonio-3-[(2-ammonioethyl)thio]propionate chloride, C5H13N2O2S+.Cl-, Mr = 200.7, monoclinic, P2(1), a = 5.1275 (4), b = 7.897 (1), c = 11.208 (1) A, beta = 104.129 (8) degrees, V = 440.1 A3, Z = 2, Dx = 1.519 g cm-3, Mo K alpha, lambda = 0.71069 A, mu = 6.12 cm-1, F(000) = 212, T = 295 K, final R = 0.021, wR = 0.027 for 784 reflections with I greater than 3 sigma (I). The two ammonium cations form seven hydrogen bonds: alpha-NH3+ acts as a donor for three carboxylate O atoms and one Cl- ion whereas epsilon-NH3+ is linked to three Cl- ions.
Ammon
H L
HL
Department of Chemistry and Biochemistry, University of Maryland, College Park 20742.
Prasad
S M
SM
Gerlt
J A
JA
D003545:Cysteine / Q000031:analogs & derivatives* / Q000737:chemistry; D015394:Molecular Structure; D014961:X-Ray Diffraction
C000204:S-2-aminoethyl cysteine; D003545:Cysteine