Molecular Target Synopsis
Overview
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SGF11 (Q03067) - Overview - Molecular Target Synopsis

Protein


SGF11, SAGA-associated factor 11
UniProt Q03067

Also Known as SGF11_YEAST, SGF11

Component of the transcription regulatory histone acetylation (HAT) complex SAGA. SAGA is involved in RNA polymerase II-dependent transcriptional regulation of approximately 10% of yeast genes. At the promoters, SAGA is required for recruitment of the basal transcription machinery. It influences RNA polymerase II transcriptional activity through different activities such as TBP interaction (SPT3, SPT8 and SPT20) and promoter selectivity, interaction with transcription activators (GCN5, ADA2, ADA3 and TRA1), and chromatin modification through histone acetylation (GCN5) and deubiquitination (UBP8). SAGA acetylates nucleosomal histone H3 to some extent (to form H3K9ac, H3K14ac, H3K18ac and H3K23ac). SAGA interacts with DNA via upstream activating sequences (UASs). SGF11 is involved in transcriptional regulation of a subset of SAGA-regulated genes. Within the SAGA complex, participates in a subcomplex with SUS1, SGF73 and UBP8 required for deubiquitination of H2B and for the maintenance of steady-state H3 methylation levels. It is required to recruit UBP8 and SUS1 into the SAGA complex. Component of the 1.8 MDa SAGA complex, which consists of at least of TRA1, CHD1, SPT7, TAF5, ADA3, SGF73, SPT20/ADA5, SPT8, TAF12, TAF6, HFI1/ADA1, UBP8, GCN5, ADA2, SPT3, SGF29, TAF10, TAF9, SGF11 and SUS1. TAF5, TAF6, TAF9, TAF19, TAF12 and ADA1 seem to be present in 2 copies. SAGA is built of 5 distinct domains with specialized functions. Domain I (containing TRA1) probably represents the activator interaction surface. Domain II (containing TAF5 and TAF6, and probably TAF9 and TAF10), domain III (containing GCN5, TAF10, SPT7, TAF5 and ADA1, and probably ADA2, ADA3 and TAF12), and domain IV (containing HFI1/ADA1 and TAF6, and probably TAF9) are believed to play primarily an architectural role. Domain III also harbors the HAT activity. Domain V (containing SPT3 and SPT20, and probably SPT8) represents the TBP-interacting module, which may be associated transiently with SAGA. Within the SAGA complex, SUS1, SGF11, SGF73 and UBP8 form an additional subcomplex of SAGA called the DUB module (deubiquitination module). Interacts directly with SGF73, SUS1 and UBP8.

6AQR
SAGA DUB MODULE UBP8(C146A)/SGF11/SUS1/SGF73 BOUND TO MONOUBIQUITIN
RCSB/PDB
Inspect Structure
See all 3D Structures for SGF11

Isoforms / Transcripts (Protein Coding)


Protein Length Ensembl Gene Ensembl Transcript Ensembl Protein Uniprot Isoform

Sub-cellular localization


UniProt: SGF11 is active in the following subcellular-locations: nucleus.
GO terms: SGF11 is active in the following subcellular-locations: DUBm complex, nucleus, SAGA complex.



UniProt
GO terms

Gene Copy Number Variation


In COSMIC - Cell Lines Project SGF11 has gain in 0 cell-lines, loss in 0 cell-lines and no signal in 0 cell-lines. (see details)

3D Structures


For SGF11 there are:
10 structures (18 chains) solved
0 are solved in complex with at least one small molecule ligand



(see details)
Molecular Target 3D Synopsis