P40505: Transcriptional regulatory protein SDS3 (SDS3)

Transcriptional regulatory protein SDS3 (SDS3) is a 327-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P40505.

Gene
SDS3
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Length
327 residues
Mean pLDDT
69.0
Model
AF-P40505-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 69.0 (low overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate34%
70 to 90Confident: backbone generally right14%
50 to 70Low: treat with caution19%
Below 50Very low: often disordered regions33%

What pLDDT means and how to read it

Function

Component of the RPD3C(L) histone deacetylase complex (HDAC) responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. SDS3 is required for the HDAC activity of the complex and for the RPD3-SIN3 association

Subunit structure

Component of the RPD3C(L) complex composed of at least ASH1, CTI6, DEP1, PHO23, RPD3, RXT2, RXT3, SAP30, SDS3, SIN3, UME1 and UME6

Subcellular location

Nucleus

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
8HPOEM2.6 ÅD=1-327
8GA8EM3.5 ÅH=1-327

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