Molecular cloning and analysis of two subunits of the human TFIID complex: hTAFII130 and hTAFII100.

Molecular cloning and analysis of two subunits of the human TFIID complex: hTAFII130 and hTAFII100.
复制标题

人 TFIID 复合物两个亚基的分子克隆和分析:hTAFII130 和 hTAFII100。

DOI:
10.1073/pnas.93.24.13611
复制
发表时间:
1996
影响因子:
11.1
通讯作者:
Admon,A
Admon,A
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Tanese,N;Saluja,D;Vassallo,MF;Chen,JL;Admon,A

文献摘要

参考文献

被引文献

相似文献

转录因子TFIID是由TATA盒结合蛋白(TBP)和多种TBP相关因子(TAFs)组成的多蛋白复合体。TFIID在介导基因特异性激活物的转录激活中起着重要作用。在哺乳动物细胞中发现了许多转录激活剂;然而,对哺乳动物TFIID的组成成分的分子分析还不完整。在这里,我们描述了编码人类转录因子TFIID的两个TAF亚基的cDNA的分离。第一个cDNA编码130 kDa人TAF亚基hTAFII130的C-端947个残基。第二个cDNA编码100 kDa亚基hTAFII100的C-端801个残基。瞬时转染法在人细胞中表达的重组TAFs在体内能与内源性TAFs和TBP结合形成TFIID复合体。蛋白质结合实验表明,hTAFII130与其果蝇同源基因dTAFII110一样,与人类转录因子Sp1的富含谷氨酰胺的激活结构域相互作用。此外,hTAFII130与Sp1突变体的结合减少,激活转录的能力受损,表明hTAFII130作为Sp1的直接共激活靶标发挥作用。
Transcription factor TFIID is a multiprotein complex composed of the TATA box-binding protein (TBP) and multiple TBP-associated factors (TAFs). TFIID plays an essential role in mediating transcriptional activation by gene-specific activators. Numerous transcriptional activators have been characterized from mammalian cells; however, molecular analysis of the components of mammalian TFIID has been incomplete. Here we describe isolation of cDNAs encoding two TAF subunits of the human transcription factor TFIID. The first cDNA is predicted to encode the C-terminal 947 residues of the 130-kDa human TAF subunit, hTAFII130. The second cDNA encodes the C-terminal 801 residues of the 100-kDa subunit, hTAFII100. Recombinant TAFs expressed in human cells by transient transfections are capable of associating with the endogenous TAFs and TBP to form a TFIID complexin vivo. Protein binding experiments demonstrate that hTAFII130, like itsDrosophilahomolog dTAFII110, interacts with the glutamine-rich activation domains of the human transcription factor Sp1. Furthermore, hTAFII130 shows reduced binding to the Sp1 mutants with impaired ability to activate transcription, suggesting a role for hTAFII130 as a direct coactivator target for Sp1.
DOI: 10.1016/0968-0004(91)90164-q
发表时间: 1991-11-01
影响因子: 13.8
作者:
ROEDER, RG
通讯作者: ROEDER, RG
果蝇 TFIID 的 dTAFII80 亚基包含 β-转导蛋白重复序列
DOI: --
发表时间: 1993
期刊: Nature
影响因子: 64.8
作者:
B. Dynlacht;R. Weinzierl;A. Admon;R. Tjian
通讯作者: R. Tjian
DOI: 10.1073/pnas.92.18.8224
发表时间: 1995-08-29
影响因子: 11.1
作者:
POON, D;BAI, Y;WEIL, PA
通讯作者: WEIL, PA
黄体酮受体中与 TFIID 复合物的 TAFII110 亚基相互作用的反式激活功能的鉴定 (*)
DOI: --
发表时间: 1995
影响因子: 4.8
作者:
C. Schwerk;M. Klotzbücher;M. Sachs;V. Ulber;L. Klein
通讯作者: L. Klein
DOI: 10.1101/gad.7.4.555
发表时间: 1993-04-01
影响因子: 10.5
作者:
DURFEE, T;BECHERER, K;ELLEDGE, SJ
通讯作者: ELLEDGE, SJ