Chymotrypsin A (1). Suitable for the structural elucidation
of proteins. Catalyzes the hydrolysis of peptide and ester bonds at the
carboxyl group of a variety of amino acids primarily those with aromatic
or long aliphatic side chains (2).
Unit definition: 1 U catalyzes the hydrolysis of 1 µmole N-benzoyl- L-tyrosine
ethyl ester (BTEE) per minute at 25 °C, pH 7.8 (3). Activity in other units: ca. 1000 USP units/mg (1 USP unit causes
decrease in absorbance at 237 nm of 0.0075 per minute at 25 °C, pH 7.0 with
ATEE as substrate) (4).
References:
Desnuelle, P. & Rovery, M. (1961) Adv. Protein Chem. 16, 139-95
Desnuelle, P. (1960) The Enzymes 2nd Ed. 4, 93-118
Kang, S.H. & Fuchs, M.S. (1973) Anal. Biochem. 54, 262-5
USP XXI/NF XVI (1984) United States Pharmacopeial Convention, 216-7
Cat.No.
Size
EUR
17160.01
100 mg
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17160.02
500 mg
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R 36/37/38
Deutsch:
Reizt die Augen, die Atmungsorgane und die Haut.
English:
Irritating to eyes, respiratory system and skin.
Français:
Irritant pour les yeux, les voies respiratoires et la peau.
Italiano:
Irritante per gli occhi, le vie respiratorie e la pelle.
Español:
Irrita los ojos, la piel y las vías respiratorias.
XN
