SMALL INTRONS IN A HEPATIC CDNA-ENCODING A NEW GLUCAGON-LIKE PEPTIDE-1-TYPE RECEPTOR

被引:32
作者
SVOBODA, M [1 ]
CICCARELLI, E [1 ]
TASTENOY, M [1 ]
CAUVIN, A [1 ]
STIEVENART, M [1 ]
CHRISTOPHE, J [1 ]
机构
[1] UNIV LIBRE BRUXELLES,SCH MED,DEPT BIOCHEM & NUTR,BLDG GE CP 611,808 ROUTE LENNIK,B-1070 BRUSSELS,BELGIUM
关键词
D O I
10.1006/bbrc.1993.1243
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A cDNA fragment was PCR amplified at low-stringency from rat DNA, using two degenerated primers corresponding to consensus sequences in the second and third transmembrane segments of members of the secretin receptor family. A synthetic oligodeoxynucleotide based on the 3′ end of this fragment, when used in Northern-blot analysis, hybridized to a broad 1.5 - 3.0 kb band in rat liver. It was then used as a probe for screening a cDNA library generated from size-fractionated rat liver poly(A)+ RNA. Overlapping alignment of sequences from 3 clones identified a 1455 residue open reading frame encoding a 485 amino acid peptide showing 7 putative transmembrane segments and 42 % identity with the glucagon-like peptide 1 (GLP-1) receptor. In addition, four small (85-300 bp) introns were variously represented in the isolated clones. © 1993 Academic Press, Inc.
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页码:479 / 486
页数:8
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