rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
5088
|
pubmed:dateCreated |
1996-12-18
|
pubmed:abstractText |
Inward-rectifying potassium channels located in the plasma membrane of higher plant and animal cells contribute to cellular homeostasis and excitability. The genes encoding this specific class of K+ channels have not been functionally identified. This report shows that a single messenger RNA transcript from the Arabidopsis thaliana KAT1 complementary DNA confers the functional expression of a hyperpolarization-activated K+ channel in Xenopus oocytes. The channels encoded by KAT1 are highly selective for K+ over other monovalent cations, are blocked by tetraethylammonium and barium, and have a single channel conductance of 28 +/- 7 picosiemens with 118 millimolar K+ in the bathing solution. These functional characteristics, typical of inward-rectifying K+ channels in eukaryotic cells, demonstrate that KAT1 encodes an inward-rectifying K+ channel.
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Dec
|
pubmed:issn |
0036-8075
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:day |
4
|
pubmed:volume |
258
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
1654-8
|
pubmed:dateRevised |
2007-3-19
|
pubmed:meshHeading |
pubmed-meshheading:8966547-Animals,
pubmed-meshheading:8966547-Arabidopsis,
pubmed-meshheading:8966547-Barium,
pubmed-meshheading:8966547-Biological Transport,
pubmed-meshheading:8966547-Gene Expression,
pubmed-meshheading:8966547-Genes, Plant,
pubmed-meshheading:8966547-Humans,
pubmed-meshheading:8966547-KB Cells,
pubmed-meshheading:8966547-Oocytes,
pubmed-meshheading:8966547-Patch-Clamp Techniques,
pubmed-meshheading:8966547-Plant Proteins,
pubmed-meshheading:8966547-Potassium,
pubmed-meshheading:8966547-Quaternary Ammonium Compounds,
pubmed-meshheading:8966547-Receptors, Interleukin-1,
pubmed-meshheading:8966547-Tetraethylammonium Compounds,
pubmed-meshheading:8966547-Xenopus
|
pubmed:year |
1992
|
pubmed:articleTitle |
Expression of an inward-rectifying potassium channel by the Arabidopsis KAT1 cDNA.
|
pubmed:affiliation |
Department of Biology, University of California, San Diego, La Jolla, CA 92093, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
|