Q13033: Striatin-3 (STRN3)

Striatin-3 (STRN3) is a 797-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q13033.

Gene
STRN3
Organism
Homo sapiens
Length
797 residues
Mean pLDDT
67.5
Model
AF-Q13033-F1 v6
Model created
1 Aug 2025
PDB structures
4

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Model confidence (pLDDT)

The mean pLDDT of this model is 67.5 (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 accurate39%
70 to 90Confident: backbone generally right16%
50 to 70Low: treat with caution7%
Below 50Very low: often disordered regions38%

What pLDDT means and how to read it

Function

Calmodulin-binding scaffolding protein which is the center of the striatin-interacting phosphatase and kinase (STRIPAK) complexes (PubMed:18782753, PubMed:30622739, PubMed:33633399). STRIPAK complexes have critical roles in protein (de)phosphorylation and are regulators of multiple signaling pathways including Hippo, MAPK, nuclear receptor and cytoskeleton remodeling. Different types of STRIPAK complexes are involved in a variety of biological processes such as cell growth, differentiation, apoptosis, metabolism and immune regulation (Probable)

Subunit structure

Tetramerizes (PubMed:33633399). Part of the core of STRIPAK complexes composed of PP2A catalytic and scaffolding subunits, the striatins (PP2A regulatory subunits), the striatin-associated proteins MOB4, STRIP1 and STRIP2, PDCD10 and members of the STE20 kinases, such as STK24 and STK26 (PubMed:18782753, PubMed:30622739, PubMed:33633399). The STRIPAK complex can be extended by adapter proteins…

Subcellular location

Cytoplasm, Membrane

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
6AKLX-ray1.75 ÅC=165-190
4N6JX-ray2.0 ÅA/B=86-131
7K36EM3.3 ÅB/D/E/F/G=1-797
6IURX-ray3.33 ÅC/D/G/H=86-131

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