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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1983-8-26
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pubmed:abstractText |
Subunit II (with a molecular mass of about 24000 dalton, approximately 24 kDA) of NADH dehydrogenase from beef heart mitochondria was [ 14C ]carboxymethylated and cleaved with CNBr and proteolytic enzymes. Sequence analyses of purified fragments suggest that the subunit is composed of a homogeneous polypeptide chain, containing just over 230 residues. The primary structure of this chain was established except for a 14-residue internal part which was only determined by composition. The amino acid sequence suggests that four cysteine residues are involved in the binding of an iron-sulfur cluster. The subunit contains no long hydrophobic segment, in contrast to structures often found in membrane proteins, but in agreement with a model where the functional unit of NADH dehydrogenase in the membrane is shielded by other intra-membrane proteins. The polypeptide has a weak similarity to the iron-sulfur binding region of ferredoxin and has interesting but possibly insignificant similarities to parts of previously compared flavin-linked enzymes.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cysteine,
http://linkedlifedata.com/resource/pubmed/chemical/Cytochrome Reductases,
http://linkedlifedata.com/resource/pubmed/chemical/Iron-Sulfur Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/NADH Dehydrogenase,
http://linkedlifedata.com/resource/pubmed/chemical/Peptide Fragments
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0014-2956
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
134
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
145-50
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:6861757-Amino Acid Sequence,
pubmed-meshheading:6861757-Animals,
pubmed-meshheading:6861757-Cattle,
pubmed-meshheading:6861757-Chemical Phenomena,
pubmed-meshheading:6861757-Chemistry,
pubmed-meshheading:6861757-Cysteine,
pubmed-meshheading:6861757-Cytochrome Reductases,
pubmed-meshheading:6861757-Iron-Sulfur Proteins,
pubmed-meshheading:6861757-Mitochondria, Heart,
pubmed-meshheading:6861757-NADH Dehydrogenase,
pubmed-meshheading:6861757-Peptide Fragments
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pubmed:year |
1983
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pubmed:articleTitle |
The primary structure of subunit II of NADH dehydrogenase from bovine-heart mitochondria.
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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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