O00506: Serine/threonine-protein kinase 25 (STK25)

Serine/threonine-protein kinase 25 (STK25) is a 426-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: O00506.

Gene
STK25
Organism
Homo sapiens
Length
426 residues
Mean pLDDT
79.7
Model
AF-O00506-F1 v6
Model created
1 Aug 2025
PDB structures
4

Explore in 3D Color by confidence AlphaFold DB UniProt

Model confidence (pLDDT)

The mean pLDDT of this model is 79.7 (confident 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 accurate52%
70 to 90Confident: backbone generally right24%
50 to 70Low: treat with caution5%
Below 50Very low: often disordered regions19%

What pLDDT means and how to read it

Function

Oxidant stress-activated serine/threonine kinase that plays a role in metabolic homeostasis, neuronal polarization, cell migration, Golgi organization, apoptosis or innate immunity. Targets to the Golgi apparatus where it appears to regulate protein transport events, cell adhesion, and polarity complexes important for cell migration. Part of the striatin-interacting phosphatase and kinase (STRIPAK) complexes. 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…

Subunit structure

Homodimer. Interacts with CTTNBP2NL (PubMed:18782753). 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). Interacts with TAOK3 (via N-terminus); the interaction promotes…

Subcellular location

Cytoplasm, Golgi apparatus

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
7Z4VX-ray1.64 ÅA=1-294
2XIKX-ray1.97 ÅA=1-293
3W8HX-ray2.43 ÅB=355-426
4NZWX-ray3.58 ÅB=1-293

More AlphaFold highlights

About this viewer

MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.