Linked Life Data

3873667

Source:http://linkedlifedata.com/resource/pubmed/id/3873667

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1985-7-9
pubmed:abstractText
Beat frequency of dog tracheal ciliated epithelium was measured using a profile projector and a photomultiplier. The preparation, treated with 50 micrograms/ml of saponin for 15 min, lost osmotic behavior and the ciliary beat came to depend on externally applied MgATP2- indicating that ciliated epithelium is skinned with saponin. Beat frequency of skinned cilia did not increase with Ca2+ in 0.1 mM MgATP2- with no ATP-regenerating system. Under 4 mM Mg ATP2- the beat frequency increased with an increase in Ca2+ from 0.3 to 10 microM, although a marked beat continued in the virtual absence of Ca2+ sensitivity and maximum beat frequency increased with the addition of 2.4 microM calmodulin. The effect of calmodulin inhibitor (W-7) on skinned preparations was somewhat weaker than that on intact ones. We concluded that Ca2+, within the physiological range of concentrations, directly activated the ciliary proteins and increased the ciliary beat frequency. The addition of calmodulin augments the effect of Ca2+ but the basal beat frequency is not Ca2+ dependent.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0034-5687
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9-19
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Effect of Ca2+ on the ciliary beat frequency of skinned dog tracheal epithelium.
pubmed:publicationType
Journal Article