P34909: General negative regulator of transcription subunit 4 (MOT2)

General negative regulator of transcription subunit 4 (MOT2) is a 587-residue protein from Saccharomyces cerevisiae (strain ATCC 204508 / S288c). This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P34909.

Gene
MOT2
Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
Length
587 residues
Mean pLDDT
62.2
Model
AF-P34909-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 62.2 (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 accurate18%
70 to 90Confident: backbone generally right25%
50 to 70Low: treat with caution17%
Below 50Very low: often disordered regions40%

What pLDDT means and how to read it

Function

E3 ubiquitin-protein ligase component of the CCR4-NOT core complex, which in the nucleus seems to be a general transcription factor, and in the cytoplasm the major mRNA deadenylase involved in mRNA turnover (PubMed:30609991, PubMed:9463387). The NOT protein subcomplex negatively regulates the basal and activated transcription of many genes (PubMed:9463387). Preferentially affects TC-type TATA element-dependent transcription. Could directly or indirectly inhibit component(s) of the general transcription machinery (PubMed:9463387). In the cytoplasm, catalyzes monoubiquitination of RPS7/es7 in response to stalled ribosomes, initiating a HEL2-dependent response that activates the No-Go Decay…

Subunit structure

Forms a NOT protein complex that comprises NOT1, NOT2, NOT3, NOT4 and NOT5. Subunit of the 1.0 MDa CCR4-NOT core complex that contains CCR4, CAF1, NOT1, NOT2, NOT3, NOT4, NOT5, CAF40 and CAF130. In the complex interacts with NOT1. The core complex probably is part of a less characterized 1.9 MDa CCR4-NOT complex

Subcellular location

Cytoplasm, Nucleus

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
5AIEX-ray2.8 ÅA=30-83
5AJDX-ray3.62 ÅB/D/F/H/J/L=418-477

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