Isolation and partial characterization of a peptidase with trypsin-like activity from bovine adenohypophysis
1989 ◽
Vol 54
(8)
◽
pp. 2276-2286
Keyword(s):
A reproducible method has been developed for the isolation of the adenohypophyseal enzyme with a trypsin-like activity. The enzyme is able to hydrolyze Nα-benzoyl-L-arginine-p-nitroanilide, a fluorogenic substrate CBzl-Arg-Arg-β-naphthyl amide and some peptides with one or two accumulated basic amino acids in the chain. The optimum pH for hydrolysis of the chromogenic substrate was within the range 6.0-7.0 (Km = 0.66 mmol l-1), in the case of the fluorogenic substrate the range was between 7.0 and 7.5 (Km = 1.2 μmol l-1). The enzyme is activated by cysteine and dithiothreitol and inhibited by SH-poisons. The molecular weight of the enzyme, determined by means of two independent methods, was approximately 25 kDA.
1996 ◽
Vol 1297
(1)
◽
pp. 9-16
◽
Keyword(s):
1984 ◽
Vol 62
(5)
◽
pp. 276-279
◽
1996 ◽
Vol 1296
(2)
◽
pp. 207-218
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2018 ◽
Vol 1
(4)
◽
pp. e00057
◽
1988 ◽
Vol 137
(6)
◽
pp. 1426-1431
◽
1985 ◽
Vol 63
(1)
◽
pp. 71-76
◽
1979 ◽
Vol 47
(3)
◽
pp. 547-556
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