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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1996-3-8
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pubmed:databankReference | |
pubmed:abstractText |
Eukaryotes synthesize queuosine (nucleoside Q) by the irreversible base-for-base exchange of queuine (Q base) for guanine at tRNA position 34, a reaction catalyzed by tRNA-guanine transglycosylase (TGT). The physiological role of Q remains unknown but the tRNA of tumor cells often is undermodified with respect to Q. Toward an understanding of the function of Q in normal and neoplastic cells we have isolated and characterized the cDNA for rabbit TGT. Rabbit erythrocyte TGT was reported previously to be a dimer of 60- and 43-kDa subunits (N. K. Howes and W. R. Farkas, 1978, J. Biol. Chem. 253, 9082-9078). Here we present the cDNA sequence for the apparent 60-kDa subunit; it contains an open reading frame encoding a 493-residue protein. The rabbit TGT 60-kDa subunit shares significant sequence similarity with the deubiquitinating enzyme family (F. R. Papa and M. Hochstrasser, 1993, nature 366, 313-319), especially with sequence elements that include conserved Cys and His residues.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0003-9861
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
326
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8579355-Amino Acid Sequence,
pubmed-meshheading:8579355-Animals,
pubmed-meshheading:8579355-Base Sequence,
pubmed-meshheading:8579355-Cloning, Molecular,
pubmed-meshheading:8579355-DNA, Complementary,
pubmed-meshheading:8579355-Erythrocytes,
pubmed-meshheading:8579355-Molecular Sequence Data,
pubmed-meshheading:8579355-Pentosyltransferases,
pubmed-meshheading:8579355-Rabbits,
pubmed-meshheading:8579355-Sequence Alignment
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pubmed:year |
1996
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pubmed:articleTitle |
Cloning and characterization of cDNA encoding the rabbit tRNA-guanine transglycosylase 60-kilodalton subunit.
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pubmed:affiliation |
Department of Microbiology and Immunology, University of Tennessee, Memphis 38163, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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