Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1984-4-16
pubmed:abstractText
The influence of chloromethyl ketones and methyl ketones of N-acylated peptides on the thermal denaturation of thermitase was investigated in the presence and the absence of calcium ions. The chloromethyl ketone derivatives are known to react irreversibly with the enzyme, whereas the corresponding methyl ketones are reversible inhibitors. Both groups of inhibitors offer a broad variety of affinity constants. The irreversible inhibition of thermitase causes a marked stabilization against thermal denaturation. On the other hand, the enzyme stability is not influenced by the binding of reversible inhibitors. The stabilizing effect of calcium ions is not dependent on the inhibitor binding. The importance of bivalent interaction (bridge formation) in the active site region of the enzyme for its thermal stability is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0367-8377
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
134-41
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Influence of synthetic peptide inhibitors on the thermal stability of thermitase, a serine proteinase from Thermoactinomyces vulgaris.
pubmed:publicationType
Journal Article, Comparative Study