DBP, A LIVER-ENRICHED TRANSCRIPTIONAL ACTIVATOR, IS EXPRESSED LATE IN ONTOGENY AND ITS TISSUE-SPECIFICITY IS DETERMINED POSTTRANSCRIPTIONALLY

被引：375

作者：

MUELLER, CR ^{[1
]}

MAIRE, P ^{[1
]}

SCHIBLER, U ^{[1
]}

机构：

[1] UNIV GENEVA,DEPT MOLEC BIOL,CH-1211 GENEVA 4,SWITZERLAND

来源：

CELL | 1990年 / 61卷 / 02期

关键词：

D O I：

10.1016/0092-8674(90)90808-R

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：

The full-length cDNA for a transcriptional activator, DBP, that binds to the D site of the albumin promoter has been cloned. DBP belongs to a family of related transcription factors including Fos, Jun, CREB, and C/EBP, which share a conserved basic domain. However, unlike most other members of this family, DBP does not contain a "leucine zipper" structure. Among several rat tissues tested, significant levels of its protein are only observed in liver; yet, with the exception of testis, DBP mRNA is present in all of the examined tissues. DBP as well as its mRNA accumulate to significant levels only in adult animals. During chemically induced liver regeneration, DBP expression is rapidly down-regulatel, suggesting that DBP may be involved in the proliferation control of hepatocytes. This cell growth-dependent expression of DBP, in contrast to its tissue specificity, appears to be controlled at the level of mRNA accumulation. © 1990.

引用

页码：279 / 291

页数：13

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