Platelet-Derived Growth Factor (PDGF) A-Chain mRNA Heterogeneity Generated by the Use of Alternative Promoters and Alternative Polyadenylation Sites

被引：15

作者：

Rorsman, Fredrik ^{[1
]}

Leveen, Per ^{[1
]}

Betsholtz, Christer ^{[1
]}

机构：

[1] Univ Hosp, Dept Pathol, S-75185 Uppsala, Sweden

来源：

GROWTH FACTORS | 1992年 / 7卷 / 03期

关键词：

D O I：

10.3109/08977199209046928

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Expression of the platelet-derived growth factor (PDGF) A-chain gene is known to give rise to multiple transcripts of different sizes. Northern blot analysis, using a set of DNA probes corresponding to various parts of the human PDGF A-chain gene, indicated heterogeneity in both the 5' and 3' end of the transcripts. The 3' heterogeneity was shown to be the result of differential use of three polyadenylation signals. S1-nuclease protection- and chloramphenicol acetyltransferase (CAT)-assays, revealed the 5' heterogeneity to be the consequence of two alternative promoters. Whereas the upstream promoter contained typical TATA- and CAAT-boxes, the downstream promoter lacked a TATA-box but seemed to be composed of several GC-boxes.

引用

页码：241 / 251

页数：12

共 49 条

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