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Merck

A2636

S-(2-Aminoethyl)-L-cysteine hydrochloride

≥98% (TLC)

Synonym(s):

L-4-Thialysine hydrochloride

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About This Item

Empirical Formula (Hill Notation):
C5H12N2O2S · HCl
CAS Number:
Molecular Weight:
200.69
NACRES:
NA.26
PubChem Substance ID:
eCl@ss:
32160406
UNSPSC Code:
12352209
EC Number:
223-862-1
MDL number:
Beilstein/REAXYS Number:
3697262
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Product Name

S-(2-Aminoethyl)-L-cysteine hydrochloride, ≥98% (TLC)

InChI

1S/C5H12N2O2S.ClH/c6-1-2-10-3-4(7)5(8)9;/h4H,1-3,6-7H2,(H,8,9);1H/t4-;/m0./s1

InChI key

CVHKULVNPGAEQM-WCCKRBBISA-N

SMILES string

Cl.NCCSC[C@H](N)C(O)=O

assay

≥98% (TLC)

form

powder

color

white to off-white

storage temp.

2-8°C

Quality Level

Biochem/physiol Actions

S-(2-Aminoethyl)-L-cysteine (AEC) hydrochloride is used as a lysine analogue for comparative analysis with other lysine analogues. S-(2-Aminoethyl)-L-cysteine is an alternative substrate useful for characterizing lysine cyclodeaminase from Streptomyces pristinaespiralis. AEC may be used as a non-antibiotic selection agent for genetically engineered soybeans expressing a lysine insensitive DHPS gene. AEC is being studied as an amino acid antibiotic.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Jeffrey Levengood et al.
The Journal of biological chemistry, 279(17), 17707-17714 (2004-01-30)
Lysine insertion during coded protein synthesis requires lysyl-tRNA(Lys), which is synthesized by lysyl-tRNA synthetase (LysRS). Two unrelated forms of LysRS are known: LysRS2, which is found in eukaryotes, most bacteria, and a few archaea, and LysRS1, which is found in
Brian C Jester et al.
Proceedings of the National Academy of Sciences of the United States of America, 100(24), 14351-14356 (2003-11-19)
Insertion of lysine during protein synthesis depends on the enzyme lysyl-tRNA synthetase (LysRS), which exists in two unrelated forms, LysRS1 and LysRS2. LysRS1 has been found in most archaea and some bacteria, and LysRS2 has been found in eukarya, most
Weilie Zhang et al.
Biochemistry, 46(35), 10113-10121 (2007-08-10)
Penicillin-binding proteins (PBPs) and beta-lactamases are members of large families of bacterial enzymes. These enzymes undergo acylation at a serine residue with their respective substrates as the first step in their catalytic events. Penicillin-binding protein 5 (PBP 5) of Escherichia
Jun Urano et al.
Molecular microbiology, 58(4), 1074-1086 (2005-11-03)
Rheb GTPase is a key player in the control of growth, cell cycle and nutrient uptake that is conserved from yeast to humans. To further our understanding of the Rheb pathway, we sought to identify hyperactivating mutations in the Schizosaccharomyces
Yuko Kanemaru et al.
Journal of bacteriology, 195(17), 3845-3853 (2013-06-25)
Thermus thermophilus exhibits hypersensitivity to a lysine analog, (S)-2-aminoethyl-cysteine (AEC). Cosmid libraries were constructed using genomes from two AEC-resistant mutants, AT10 and AT14, and the cosmids that conferred AEC resistance on the wild-type strain were isolated. When the cosmid library

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