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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
20
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pubmed:dateCreated |
1978-12-27
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pubmed:abstractText |
NAD+ at 0.16 mM stimulates the initiation step of the protein synthetic process in lysed rabbit reticulocytes. This conclusion is based on the stimulation of (i) the transfer of formylmethionine from f[35S]Met-tRNAfMet into polypeptide, (ii) the accumulation of the initial dipeptide, methionylvaline, in the presence of pactamycin, and (iii) the formation of the 40 S initiation complex. The effect of NAD+ changes from a stimulatory role on protein synthesis to an inhibitory role at concentrations greater than 0.16 mM. At 4.0 mM NAD+, protein synthesis is inhibited. This has been demonstrated experimentally by using the same three assays described above. In addition, 4.0 mM NAD+ inhibits MettRNAfMet.initiation factor.GTP ternary complex formation. The elongation and termination steps of polypeptide synthesis are not affected by 0.16 to 4.0 mM NAD+. The data presented clearly show that the stimulatory activity of 0.16 mM NAD+ and the inhibitory activity of 4.0 mM NAD+ affects the initiation step of the protein synthetic process in lysed rabbit reticulocytes.
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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 |
Oct
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
25
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pubmed:volume |
253
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
7295-300
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:212421-Animals,
pubmed-meshheading:212421-Blood Proteins,
pubmed-meshheading:212421-Kinetics,
pubmed-meshheading:212421-Methionine,
pubmed-meshheading:212421-NAD,
pubmed-meshheading:212421-Peptide Biosynthesis,
pubmed-meshheading:212421-Peptide Chain Initiation, Translational,
pubmed-meshheading:212421-Polyribosomes,
pubmed-meshheading:212421-RNA, Transfer,
pubmed-meshheading:212421-Rabbits,
pubmed-meshheading:212421-Reticulocytes
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pubmed:year |
1978
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pubmed:articleTitle |
Stimulation and inhibition of the protein synthetic process by NAD+ in lysed rabbit reticulocytes.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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