Summary

Name IWS1
Full Name Protein IWS1 homolog
Synonyms IWS1-like protein | IWS1L
Primary ID Q96ST2
Links - -
Type protein
Relations 3
Function Transcription factor which plays a key role in defining the composition of the RNA polymerase II (RNAPII) elongation complex and in modulating the production of mature mRNA transcripts. Acts as an assembly factor to recruit various factors to the RNAPII elongation complex and is recruited to the complex via binding to the transcription elongation factor SUPT6H bound to the C-terminal domain (CTD) of the RNAPII subunit RPB1 (POLR2A). The SUPT6H:IWS1:CTD complex recruits mRNA export factors (ALYREF/THOC4, EXOSC10) as well as histone modifying enzymes (such as SETD2) to ensure proper mRNA splicing, efficient mRNA export and elongation-coupled H3K36 methylation, a signature chromatin mark of active transcription.

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png phosphorylation IWS1 0.397
Publications: 2 Organism: Homo Sapiens
+ form complex img/form-complex.png binding Iws1:Spt6:CTD complex 0.781
Publications: 1 Organism: Homo Sapiens