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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
25
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pubmed:dateCreated |
1989-10-11
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pubmed:databankReference | |
pubmed:abstractText |
The sequences upstream and downstream of the cloned gene for the alpha-subunit of the Na+ pump oxaloacetate decarboxylase of Klebsiella pneumonia were determined. An open reading frame in the upstream region was identified as the gene for the gamma-subunit, and an open reading frame in the downstream region represents the gene for the beta-subunit. The deduced primary structure of the gamma- and beta-subunit was confirmed by protein sequencing of about 37 and 22%, respectively, of each polypeptide chain. The gene for the gamma-subunit has a GC content of 64% and codes for 83 amino acids. The protein is not processed at its amino terminus or at its carboxyl terminus. The gene for the beta-subunit has a GC content of 66% and codes for 327 amino acids. The protein contains a blocked aminoterminal methionine residue. Whether processing occurs at the carboxyl terminus is unknown. Hydropathy calculations defined one transmembrane helix in the amino-terminal part of the gamma-subunit and a hydrophilic carboxyl-terminal part that is certainly not embedded within the lipid bilayer. A proline- and alanine-rich sequence in the carboxyl-terminal part may provide the protein with conformational flexibility. According to hydropathy and acrophilicity calculations, the secondary structure of the beta-subunit may be formed with 5 or 6 intramembrane helical segments.
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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/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Carboxy-Lyases,
http://linkedlifedata.com/resource/pubmed/chemical/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Membrane Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium Channels,
http://linkedlifedata.com/resource/pubmed/chemical/oxaloacetate decarboxylase
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
5
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pubmed:volume |
264
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
14710-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2549031-Amino Acid Sequence,
pubmed-meshheading:2549031-Bacterial Proteins,
pubmed-meshheading:2549031-Base Sequence,
pubmed-meshheading:2549031-Carboxy-Lyases,
pubmed-meshheading:2549031-Carrier Proteins,
pubmed-meshheading:2549031-Genes, Bacterial,
pubmed-meshheading:2549031-Klebsiella pneumoniae,
pubmed-meshheading:2549031-Membrane Proteins,
pubmed-meshheading:2549031-Molecular Sequence Data,
pubmed-meshheading:2549031-Protein Conformation,
pubmed-meshheading:2549031-Sodium Channels
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pubmed:year |
1989
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pubmed:articleTitle |
The sodium ion translocating oxaloacetate decarboxylase of Klebsiella pneumoniae. Sequence of the integral membrane-bound subunits beta and gamma.
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pubmed:affiliation |
Max-Planck-Institut für Biochemie, Martinsried, Federal Republic of Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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