Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1987-2-5
pubmed:abstractText
We have isolated an activator of collagenase from medium conditioned with articular cartilage. The activity is contained in an acidic protein appearing as a doublet band of Mr 57,000 and 56,000 on sodium dodecyl sulfate polyacrylamide gels. Both components of the doublet have identical isoelectric points as demonstrated by gel electrophoresis. Purified synovial collagenase has a high dependence on the presence of this factor for activity. Other known activators of latent proteolytic enzymes such as trypsin and mercurials will stimulate collagenase but only if activator protein is present. The activator protein is itself a latent metalloprotease because in the presence of p-aminophenylmercuric acetate and calcium it will digest casein. The caseinase activity and collagenase activation activity have identical heat inactivation profiles, both being stable to a temperature of 60 degrees C and partially inactivated at 80 degrees C. The synthesis of the activator is localized in the superficial zone of articular cartilage.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0003-9861
pubmed:author
pubmed:issnType
Print
pubmed:volume
251
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
715-23
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Purification and characterization of collagenase activator protein synthesized by articular cartilage.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S.