Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1986-6-6
pubmed:databankReference
pubmed:abstractText
The td gene contains a 735 bp open reading frame within its 1017 bp intron. A 12 nucleotide stretch may form a stable secondary structure with the putative Shine-Dalgarno sequence of the intron open reading frame and thus impair its translation. SP6 RNA polymerase transcripts of the td gene synthesized in vitro at 40 degrees C encompass a 2.7 kb primary transcript, a 1.7 kb mRNA, and a 1 kb intron RNA. The excised intron RNA consisted of linear and cyclized forms. RNAase H studies and resistance of the cyclized intron to linearization by HeLa cell debranching enzyme suggest it to be circular. Self-splicing of isolated td primary transcript occurred only marginally at 28 degrees C, but increased progressively to 50 degrees C, and required the presence of both Mg++ and a guanosine cofactor. An internal guide sequence is evident which may align the 5' splice site with the 3' end, presumably for precise exon ligation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0092-8674
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
45
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
157-66
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Characterization of the intron in the phage T4 thymidylate synthase gene and evidence for its self-excision from the primary transcript.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.