Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1992-5-12
pubmed:abstractText
Scatchard-plot analysis of [125I]ET-1 and [125I]ET-3 binding to rat lung membranes exhibited almost the same Kd values whereas the concentration of the binding sites of ET-1 is approximately four times higher than that of ET-3. This result suggests the presence of at least two distinct subtypes of ET receptors: an ET-1-specific type and an ET-3-specific or ET-1 and ET-3 nonselective type. On the other hand, in rat brain membranes, a curvilinear Scatchard plot was obtained for [125I]ET-3 in contrast to a linear plot for [125I]ET-1. This finding also demonstrates the existence of the two different receptor subtypes having the same affinity for ET-1, but one of which has a high affinity and the other has a low affinity for ET-3. Moreover, these data indicate that an ET receptor subtype exists in rat brain different from the subtype in rat lung. To obtain the bases for a further detailed characterization of the receptor, we have purified the rat lung ET receptor to homogeneity by ET-1-affinity chromatography. The purified receptor exhibits a molecular mass of 45 kDa, in good agreement with that estimated from the affinity labeling.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0160-2446
pubmed:author
pubmed:issnType
Print
pubmed:volume
17 Suppl 7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S122-3
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Characterization of endothelin receptor subtypes.
pubmed:affiliation
Institute of Applied Biochemistry, University of Tsukuba, Ibaraki, Japan.
pubmed:publicationType
Journal Article, In Vitro