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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6564
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pubmed:dateCreated |
1996-2-27
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pubmed:databankReference | |
pubmed:abstractText |
Iodide (I-) is an essential constituent of the thyroid hormones T3 and T4, and is accumulated by the thyroid. The transport of iodide, the first step in thyroid hormogenesis, is catalysed by the Na+/I- symporter, an intrinsic membrane protein that is crucial for the evaluation, diagnosis and treatment of thyroid disorders. Although several other important thyroid proteins involved in hormogenesis have been characterized, the Na+/I- symporter has not. Here we report the isolation of a complementary DNA clone that encodes this symporter, as a result of functional screening of a cDNA library from a rat thyroid-derived cell line (FRTL-5) in Xenopus laevis oocytes. Oocyte microinjection of an RNA transcript made in vitro from this cDNA clone elicited a more than 700-fold increase in perchlorate-sensitive Na+/I- symport activity over background. To our knowledge, this is the first iodide-transporting molecule to have its cDNA cloned, providing a missing link in the thyroid hormone biosynthetic pathway.
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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/DNA, Complementary,
http://linkedlifedata.com/resource/pubmed/chemical/Membrane Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Symporters,
http://linkedlifedata.com/resource/pubmed/chemical/sodium-iodide symporter
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0028-0836
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
379
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
458-60
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8559252-Amino Acid Sequence,
pubmed-meshheading:8559252-Animals,
pubmed-meshheading:8559252-Carrier Proteins,
pubmed-meshheading:8559252-Cell Line,
pubmed-meshheading:8559252-Cloning, Molecular,
pubmed-meshheading:8559252-DNA, Complementary,
pubmed-meshheading:8559252-Membrane Proteins,
pubmed-meshheading:8559252-Molecular Sequence Data,
pubmed-meshheading:8559252-Symporters,
pubmed-meshheading:8559252-Thyroid Gland,
pubmed-meshheading:8559252-Xenopus laevis
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pubmed:year |
1996
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pubmed:articleTitle |
Cloning and characterization of the thyroid iodide transporter.
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pubmed:affiliation |
Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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