Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
29
pubmed:dateCreated
1990-11-21
pubmed:abstractText
Smooth muscle caldesmon was phosphorylated by smooth muscle calmodulin-dependent protein kinase II. The extent of phosphorylation obtained was 5.65 mol of phosphate/mol of caldesmon. Phosphorylated protein was subjected to the complete trypsin proteolysis and the produced phosphopeptides were purified by C-8 reverse phase chromatography. Nine phosphopeptides were isolated and by amino acid sequence analysis, eight phosphorylation sites were identified. According to the published amino acid sequence of chicken gizzard caldesmon (Bryan, J., Imai, M., Lee, R., Moore, P., Cook, R. G., and Lin, W.-G. (1989) J. Biol. Chem. 264, 13873-13879), these sites were serine 26, serine 59, serine 73, threonine 469, serine 475, serine 587, serine 620, and serine 726. The time course of phosphorylation of these sites was also measured and it was concluded that the first site was serine 73, the second site was serine 26, the third site was serine 726, and the fourth site was serine 587. The preferred phosphorylation sites were located in the amino terminus myosin binding domain whereas slower phosphorylation occurred in the carboxyl terminus actin/calmodulin domain.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
265
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
17607-12
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Phosphorylation of smooth muscle caldesmon by calmodulin-dependent protein kinase II. Identification of the phosphorylation sites.
pubmed:affiliation
Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't