rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
2004-11-29
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pubmed:abstractText |
Programmed ribosomal bypassing occurs in decoding phage T4 gene 60 mRNA. Half the ribosomes bypass a 50 nucleotide gap between codons 46 and 47. Peptidyl-tRNA dissociates from the "take-off" GGA, codon 46, and re-pairs to mRNA at a matched GGA "landing site" codon directly 5' of codon 47 where translation resumes. The system described here allows the contribution of peptidyl-tRNA re-pairing to be measured independently of dissociation. The matched GGA codons have been replaced by 62 other matched codons, giving a wide range of bypassing efficiencies. Codons with G or C in either or both of the first two codon positions yielded high levels of bypassing. The results are compared with those from a complementary study of non-programmed bypassing, where the combined effects of peptidyl-tRNA dissociation and reassociation were measured. The wild-type, GGA, matched codons are the most efficient in their gene 60 context in contrast to the relatively low value in the non-programmed bypassing study.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Anticodon,
http://linkedlifedata.com/resource/pubmed/chemical/Arginine,
http://linkedlifedata.com/resource/pubmed/chemical/Codon,
http://linkedlifedata.com/resource/pubmed/chemical/Cytosine,
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Bacterial,
http://linkedlifedata.com/resource/pubmed/chemical/Guanine,
http://linkedlifedata.com/resource/pubmed/chemical/Inosine,
http://linkedlifedata.com/resource/pubmed/chemical/Nucleoside Q,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Transfer,
http://linkedlifedata.com/resource/pubmed/chemical/Serine,
http://linkedlifedata.com/resource/pubmed/chemical/Valine
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0022-2836
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
345
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
39-49
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:15567409-Anticodon,
pubmed-meshheading:15567409-Arginine,
pubmed-meshheading:15567409-Base Sequence,
pubmed-meshheading:15567409-Codon,
pubmed-meshheading:15567409-Cytosine,
pubmed-meshheading:15567409-DNA, Bacterial,
pubmed-meshheading:15567409-Guanine,
pubmed-meshheading:15567409-Inosine,
pubmed-meshheading:15567409-Nucleic Acid Conformation,
pubmed-meshheading:15567409-Nucleoside Q,
pubmed-meshheading:15567409-Protein Biosynthesis,
pubmed-meshheading:15567409-RNA, Messenger,
pubmed-meshheading:15567409-RNA, Transfer,
pubmed-meshheading:15567409-Ribosomes,
pubmed-meshheading:15567409-Serine,
pubmed-meshheading:15567409-Valine
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pubmed:year |
2005
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pubmed:articleTitle |
P-site pairing subtleties revealed by the effects of different tRNAs on programmed translational bypassing where anticodon re-pairing to mRNA is separated from dissociation.
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pubmed:affiliation |
Department of Human Genetics, University of Utah, 15N 2030E Rm7410, Salt Lake City, UT 84112-5330, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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