Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1985-10-17
pubmed:abstractText
Ca2+/calmodulin dependent cyclic nucleotide phosphodiesterase, from the bovine heart and brain, purified by monoclonal antibody chromatography were tested with respect to activation by oncomodulin. The heart and brain enzymes which have previously been shown to have slightly different electrophoretic mobilities (1), were found to also differ in the oncomodulin dose-dependent activation of cAMP hydrolysis. Oncomodulin was shown to activate the heart enzyme to the same extent as calmodulin. However, this study indicates that the heart phosphodiesterase has approximately 25-fold higher affinity for oncomodulin than the brain enzyme. The oncomodulin concentration required for the half-maximal activation of the heart phosphodiesterase was estimated to be 2 X 10(-7)M. In addition, the possibility of the observed activation by oncomodulin being due to calmodulin contamination can be ruled out as the oncomodulin activation profiles were unaltered subsequent to chromatography on organomercurial agarose and the activation by oncomodulin could not be reversed by anti-calmodulin IgG.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
131
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
500-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
The differential stimulation of brain and heart cyclic-AMP phosphodiesterase by oncomodulin.
pubmed:publicationType
Journal Article, Comparative Study