Gambusia_affinisFamily: Spt4 Number of Genes: 1
Ensembl IDSymbolEntrez IDRBD RBPome PRIExpresion PathwayPhenotype ParalogOrthologGO
supt4h1
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Introduction

Pfam

This family consists of several eukaryotic transcription elongation Spt4 proteins as well as archaebacterial RpoE2 [2]. Three transcription-elongation factors Spt4, Spt5, and Spt6 are conserved among eukaryotes and are essential for transcription via the modulation of chromatin structure. Spt4 and Spt5 are tightly associated in a complex, while the physical association of the Spt4-Spt5 complex with Spt6 is considerably weaker. It has been demonstrated that Spt4, Spt5, and Spt6 play roles in transcription elongation in both yeast and humans including a role in activation by Tat. It is known that Spt4, Spt5, and Spt6 are general transcription-elongation factors, controlling transcription both positively and negatively in important regulatory and developmental roles [1]. RpoE2 is one of 13 subunits in the archaeal RNA polymerase. These proteins contain a C4-type zinc finger, and the structure has been solved in [3]. The structure reveals that Spt4-Spt5 binding is governed by an acid-dipole interaction between Spt5 and Spt4, and the complex binds to and travels along the elongating RNA polymerase. The Spt4-Spt5 complex is likely to be an ancient, core component of the transcription elongation machinery.

InterPro

This entry consists of several eukaryotic transcription elongation Spt4 proteins as well as archaebacterial RpoE2 [PUBMED:8127719]. Three transcription-elongation factors Spt4, Spt5, and Spt6 are conserved among eukaryotes and are essential for transcription via the modulation of chromatin structure. Spt4 and Spt5 are tightly associated in a complex, while the physical association of the Spt4-Spt5 complex with Spt6 is considerably weaker. It has been demonstrated that Spt4, Spt5, and Spt6 play roles in transcription elongation in both yeast and humans including a role in activation by Tat. It is known that Spt4, Spt5, and Spt6 are general transcription-elongation factors, controlling transcription both positively and negatively in important regulatory and developmental roles [PUBMED:11182892]. RpoE2 is one of 13 subunits in the archaeal RNA polymerase. These proteins contain a C4-type zinc finger, and the structure has been solved in [PUBMED:19000817]. The structure reveals that Spt4-Spt5 binding is governed by an acid-dipole interaction between Spt5 and Spt4, and the complex binds to and travels along the elongating RNA polymerase. The Spt4-Spt5 complex is likely to be an ancient, core component of the transcription elongation machinery.

Reference

  1. Winston F; , Genome Biol 2001;2:1006-1007.: Control of eukaryotic transcription elongation. PUBMED:11182892 EPMC:11182892 .

  2. Langer D, Lottspeich F, Zillig W; , Nucleic Acids Res. 1994;22:694-694.: A subunit of an archaeal DNA-dependent RNA polymerase contains the S1 motif. PUBMED:8127719 EPMC:8127719 .

  3. Guo M, Xu F, Yamada J, Egelhofer T, Gao Y, Hartzog GA, Teng M, Niu L;, Structure. 2008;16:1649-1658.: Core structure of the yeast spt4-spt5 complex: a conserved module for regulation of transcription elongation. PUBMED:19000817 EPMC:19000817.