Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
20
pubmed:dateCreated
1982-12-3
pubmed:abstractText
A heat-stable inhibitor of protein synthesis has been isolated from the postribosomal supernatant of rabbit reticulocytes. Its activity is not susceptible to protease treatment but is destroyed by incubation with alkali. Inhibitory activity can be quantitatively recovered in the aqueous phase after phenol extraction and has the ultraviolet absorption spectrum of a nucleic acid. It is concluded that the inhibitor is RNA. The inhibitory activity sediments in the range of 3 S, but it has not been demonstrated whether the inhibitor RNA is a single molecular species. The inhibitory RNA does not affect peptide elongation but rather blocks a step of peptide initiation. It does not interfere with the formation of the ternary complex between initiation factor 2, GTP, and methionyl-tRNAMetf and does not activate a protein kinase phosphorylating initiation factor 2. The inhibitory RNA appears to be a novel type of RNA that inhibits polypeptide initiation at a step involving ribosomal subunits.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
257
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
12373-9
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1982
pubmed:articleTitle
Inhibition of peptide initiation by a low molecular weight RNA from rabbit reticulocytes.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.