Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1987-3-31
|
pubmed:abstractText |
Cathepsin B (EC 3.4.22.1) has been purified from rabbit testes to apparent homogeneity by chromatography on DE-52, affinity chromatography on organomercurial agarose and subsequent gel filtrations on Sephadex G-75. The enzyme is composed of a single polypeptide of Mr 23,000. Thiol blocking agents and leupeptin abolished the activity of the enzyme completely. The enzyme showed maximum activity at pH 6.0 and 43 degrees C, required 2 mM-cysteine for the optimal activity and had a Km1.45 X 10(-3) M using Z-Arg-beta-naphthylamide as the substrate. However, Z-Arg-Arg-beta-naphthylamide was 12 times more sensitive as a substrate than was Z-Arg-beta-naphthylamide. Rabbit testicular cathepsin B hydrolysed intact proteins. An endogenous inhibitor isolated from the rabbit testes inhibited purified Cathepsin B.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0022-4251
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
79
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
67-74
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:3820185-Animals,
pubmed-meshheading:3820185-Cathepsin B,
pubmed-meshheading:3820185-Cathepsins,
pubmed-meshheading:3820185-Chromatography, Gel,
pubmed-meshheading:3820185-Male,
pubmed-meshheading:3820185-Molecular Weight,
pubmed-meshheading:3820185-Rabbits,
pubmed-meshheading:3820185-Testis
|
pubmed:year |
1987
|
pubmed:articleTitle |
Isolation and characterization of cathepsin B from rabbit testis.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|