title: Multiple mRNAs for 3-hydroxy-3-methylglutaryl coenzyme A reductase determined by multiple transcription initiation sites and intron splicing sites in the 5'-untranslated region.
abstract: The current studies show that mRNAs with 16 different 5'-untranslated regions (varying in length from 68 to 670 nucleotides) are produced from the 3-hydroxy-3-methylglutaryl coenzyme A reductase gene in hamster UT-1 cells. This complex pattern of mRNAs results from a combination of multiple transcription initiation sites and multiple 5' splice donor sites for the intron in the 5'-untranslated region of the gene. Analysis of the multiple mRNAs was made possible by a modification of the S1 nuclease technique in which we used a series of progressively truncated uniformly labeled, single-stranded [32P]DNA probes in addition to the usual end-labeled 32P-probes. All of the reductase mRNAs are diminished when UT-1 cells are incubated with sterols, indicating that all of them are subject to coordinate control.
authors.forename: G A
authors.initials: GA
authors.lastname: Reynolds
authors.forename: J L
authors.initials: JL
authors.lastname: Goldstein
authors.forename: M S
authors.initials: MS
authors.lastname: Brown
mesh_terms: D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D003001:Cloning, Molecular; D006224:Cricetinae; D004247:DNA / Q000378:metabolism; D004262:DNA Restriction Enzymes; D004720:Endonucleases; D006903:Hydroxymethylglutaryl CoA Reductases / Q000235:genetics*; D010957:Plasmids; D014176:Protein Biosynthesis; D012326:RNA Splicing; D012330:RNA, Double-Stranded / Q000235:genetics; D012333:RNA, Messenger / Q000235:genetics*; D015719:Single-Strand Specific DNA and RNA Endonucleases; D014158:Transcription, Genetic
chemical_list: D012330:RNA, Double-Stranded; D012333:RNA, Messenger; D004247:DNA; D006903:Hydroxymethylglutaryl CoA Reductases; D004720:Endonucleases; D004262:DNA Restriction Enzymes; D015719:Single-Strand Specific DNA and RNA Endonucleases