The mouse RNase 4 and RNase 5/ang 1 locus utilizes dual promoters for tissue-specific expression.

The mouse RNase 4 and RNase 5/ang 1 locus utilizes dual promoters for tissue-specific expression.
复制标题

DOI:
10.1093/nar/gki250
复制
发表时间:
2005
影响因子:
14.9
通讯作者:
Rosenberg HF
Rosenberg HF
中科院分区:
生物学2区
文献类型:
--
作者:
Dyer KD;Rosenberg HF

文献摘要

参考文献

被引文献

相似文献

核糖核酸酶 A (RNase A) 超家族一直是蛋白质进化、结构和生物化学领域广泛研究的主题,并且是令人兴奋的分子,因为它们似乎能够响应独特的选择压力,产生能够具有多种不同活性的蛋白质。 RNase 4 和 RNase 5/ang 1 共享位点打破了 RNase A 基因超家族成员中的常规模式。该基因座在人类、小鼠和大鼠中是保守的,包括两个非编码外显子,后跟两个编码 RNase 4 和 RNase 5/ang 1 的不同外显子。该基因座的转录受到位于每个非编码外显子 5' 端的启动子的差异剪接和组织特异性表达的控制。在体外启动子测定中,启动子 1(外显子 I 5' 端)具有普遍活性,而启动子 2(外显子 II 5'端)仅在肝细胞中具有活性。启动子 2 的转录依赖于与转录因子 HNF-1α 结合的完整 HNF-1 共有结合位点。总之,RNase 4 和 RNase 5/ang 1 在 RNase A 核糖核酸酶基因中是独特的,因为它们维持一个在物种间保守的复杂基因位点,转录从组织特异性双启动子启动,然后进行差异外显子剪接。
The ribonuclease A (RNase A) superfamily has been the subject of extensive studies in the areas of protein evolution, structure and biochemistry and are exciting molecules in that they appear to be responding to unique selection pressures, generating proteins capable of multiple and diverse activities. The RNase 4 and RNase 5/ang 1 shared locus breaks a pattern that is otherwise canonical among the members of the RNase A gene superfamily. Conserved among humans, mice and rats, the locus includes two non-coding exons followed by two distinct exons encoding RNase 4 and RNase 5/ang 1. Transcription from this locus is controlled by differential splicing and tissue-specific expression from promoters located 5′ to each of the non-coding exons. Promoter 1, 5′ to exon I, is universally active, while Promoter 2, 5′ to exon II, is active only in hepatic cells in promoter assays in vitro. Transcription from Promoter 2 is dependent on an intact HNF-1 consensus binding site which binds the transcription factor HNF-1α. In summary, RNase 4 and RNase 5/ang 1 are unique among the RNase A ribonuclease genes in that they maintain a complex gene locus that is conserved across species with transcription initiated from tissue-specific dual promoters followed by differential exon splicing.
DOI: 10.1172/jci2548
发表时间: 1998-05-15
影响因子: 15.9
作者:
Pontoglio, M;Sreenan, S;Polonsky, KS
通讯作者: Polonsky, KS
DOI: 10.4049/jimmunol.171.10.5277
发表时间: 2003-11-15
影响因子: 4.4
作者:
Lieto, LD;Borrego, F;Coligan, JE
通讯作者: Coligan, JE
DOI: 10.1095/biolreprod.103.022459
发表时间: 2004-02-01
影响因子: 3.6
作者:
Castella, S;Fouchécourt, S;Dacheux, JL
通讯作者: Dacheux, JL
人嗜酸性粒细胞阳离子蛋白。具有核糖核酸酶活性的细胞毒素和螺旋毒素的分子克隆。
DOI: 10.1084/jem.170.1.163
发表时间: 1989-07-01
影响因子: 15.3
作者:
ROSENBERG, HF;ACKERMAN, SJ;TENEN, DG
通讯作者: TENEN, DG
DOI: 10.1016/j.ygeno.2004.10.008
发表时间: 2005-02-01
期刊: GENOMICS
影响因子: 4.4
作者:
Cho, S;Beintema, JJ;Zhang, JZ
通讯作者: Zhang, JZ