Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-9-23
pubmed:abstractText
Large-conductance Ca(2+)-activated K(+) (BK(Ca)) channels are widely distributed in cellular membranes of various tissues, but have not previously been found in cardiomyocytes. In this study, we cloned a gene encoding the mouse cardiac BK(Ca) channel alpha-subunit (mCardBKa). Sequence analysis of the cDNA revealed an open reading frame encoding 1154 amino acids. Another cDNA variant, identical in amino acid sequence, was also identified by sequence analysis. The nucleotide sequences of the two mCardBKa cDNAs, type 1 (mCardBKa1) and type 2 (mCardBKa2), differed by three nucleotide insertions and one nucleotide substitution in the N-terminal sequence. The amino acid sequence demonstrated that mCardBKa was a unique BK(Ca) channel alpha-subunit in mouse cardiomyocytes, with amino acids 41-1153 being identical to calcium-activated potassium channel SLO1 and amino acids 1-40 corresponding to BK(Ca) channel subfamily M alpha member 1. These findings suggest that a unique BK(Ca) channel alpha-subunit is expressed in mouse cardiomyocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1090-2104
pubmed:author
pubmed:issnType
Electronic
pubmed:day
6
pubmed:volume
389
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
74-9
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Cloning of large-conductance Ca(2+)-activated K(+) channel alpha-subunits in mouse cardiomyocytes.
pubmed:affiliation
Department of Physiology, College of Medicine, Chung-Ang University, Seoul, South Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't