Q9UN86: Ras GTPase-activating protein-binding protein 2 (G3BP2)

Ras GTPase-activating protein-binding protein 2 (G3BP2) is a 482-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9UN86.

Gene
G3BP2
Organism
Homo sapiens
Length
482 residues
Mean pLDDT
65.6
Model
AF-Q9UN86-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 65.6 (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 accurate28%
70 to 90Confident: backbone generally right16%
50 to 70Low: treat with caution11%
Below 50Very low: often disordered regions45%

What pLDDT means and how to read it

Function

Scaffold protein that plays an essential role in cytoplasmic stress granule formation which acts as a platform for antiviral signaling (PubMed:23279204, PubMed:32302570, PubMed:32302571, PubMed:32302572). Plays an essential role in stress granule formation (PubMed:27022092, PubMed:32302570, PubMed:32302571, PubMed:32302572, PubMed:35977029). Stress granules are membraneless compartments that store mRNAs and proteins, such as stalled translation pre-initiation complexes, in response to stress (PubMed:32302570, PubMed:32302571, PubMed:32302572). Promotes formation of stress granules phase-separated membraneless compartment by undergoing liquid-liquid phase separation (LLPS) upon unfolded…

Subunit structure

Forms homooligomers (PubMed:23279204). Forms heterodimers with G3BP1 (PubMed:23279204). Interacts with NFKBIA (via N-terminus) (PubMed:10969074). Interacts (via NTF2 domain) with USP10; inhibiting stress granule formation (PubMed:23279204, PubMed:27022092, PubMed:31981475). Interacts (via NTF2 domain) with CAPRIN1; promoting stress granule formation (PubMed:27022092). Associates (via RG-rich…

Subcellular location

Cytoplasm, Cytoplasm, Stress granule

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
9OS2EM2.5 ÅC/D=1-482
5DRVX-ray2.75 ÅA=1-139

More AlphaFold highlights

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