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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
16
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pubmed:dateCreated |
1998-5-21
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pubmed:abstractText |
The leptin receptor (Ob-R) is alternatively spliced into at least five different RNAs designated Ob-R(a-e). Ob-R(a-d) predict receptors with a single transmembrane domain, and Ob-Re predicts a secreted form of the receptor. The presence of an approximately 120-kDa soluble leptin receptor in mouse plasma was confirmed by precipitation with leptin-Sepharose beads followed by immunobloting with anti-leptin receptor antibodies. The soluble leptin receptor is larger than that predicted by the primary sequence. Deglycosylation of the receptor with peptide N:glycosidase F results in a decrease in molecular mass to a size consistent with that of the primary sequence. The secreted receptor was present in plasma from wild type mice but was truncated in plasma from db3J/db3J and absent in dbPas/dbPas plasma. Although db3J/db3J mice are known to have a frameshift mutation at amino acid 625, the basis for the mutation in dbPas/dbPas mice was not known. Further studies indicated that dbPas/dbPas mice carry a duplication of exons 4 and 5 of Ob-R. This mutation introduces a premature stop codon into the protein at amino acid 281. The absence of Ob-R in db3J/db3J and dbPas/dbPas mice confirm the identify of the 120-kDa plasma protein as Ob-Re.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Leptin,
http://linkedlifedata.com/resource/pubmed/chemical/Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cell Surface,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Leptin,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/leptin receptor, mouse
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
17
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pubmed:volume |
273
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
10078-82
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:9545355-Alternative Splicing,
pubmed-meshheading:9545355-Animals,
pubmed-meshheading:9545355-Base Sequence,
pubmed-meshheading:9545355-Carrier Proteins,
pubmed-meshheading:9545355-Chromatography, Affinity,
pubmed-meshheading:9545355-Exons,
pubmed-meshheading:9545355-Frameshift Mutation,
pubmed-meshheading:9545355-Hypothalamus,
pubmed-meshheading:9545355-Leptin,
pubmed-meshheading:9545355-Mice,
pubmed-meshheading:9545355-Mice, Mutant Strains,
pubmed-meshheading:9545355-Molecular Sequence Data,
pubmed-meshheading:9545355-Molecular Weight,
pubmed-meshheading:9545355-Proteins,
pubmed-meshheading:9545355-Receptors, Cell Surface,
pubmed-meshheading:9545355-Receptors, Leptin,
pubmed-meshheading:9545355-Recombinant Proteins
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pubmed:year |
1998
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pubmed:articleTitle |
Absence of soluble leptin receptor in plasma from dbPas/dbPas and other db/db mice.
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pubmed:affiliation |
Howard Hughes Medical Institute, New York, New York 10021, USA.
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pubmed:publicationType |
Journal Article
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