Linked Life Data

6274407

Source:http://linkedlifedata.com/resource/pubmed/id/6274407

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1982-3-26
pubmed:abstractText
Arginine-rich histones H2A, H2B, H3 and H4 contain two regions of interaction with cyclic nucleotide-dependent protein kinases: a substrate phosphorylation site and a region which noncompetitively inhibits cyclic nucleotide binding to the protein kinases. We have compared the interaction of cyclic nucleotide-dependent protein kinases with these two sites in histones which are organized in nucleosome structures with the interaction of the enzymes with free histones. Whereas histones in solution are readily phosphorylated by cyclic GMP-dependent protein kinase and the catalytic subunit of cyclic AMP-dependent protein kinase, mononucleosomes are not phosphorylated by these enzymes. Histones extracted from mononucleosomes can be phosphorylated, indicating that the lack of phosphorylation of nucleosomes is not due to covalent modification of the histones but to their organization within the nucleosome structure. Whereas histones in solution are effective noncompetitive inhibitors of cyclic GMP binding to cyclic GMP-dependent protein kinase and of cyclic AMP binding to the regulatory subunits of cyclic AMP-dependent protein kinase, mononucleosomes do not affect cyclic nucleotide binding. These studies indicate that histones which are organized in nucleosome structures are neither substrates nor modifiers of cyclic nucleotide-dependent protein kinases.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
656
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
155-9
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Comparison of the interaction of cyclic nucleotide-dependent protein kinases with mononucleosomes and free histones.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't