Q9Y484: WD repeat domain phosphoinositide-interacting protein 4 (WDR45)

WD repeat domain phosphoinositide-interacting protein 4 (WDR45) is a 360-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9Y484.

Gene
WDR45
Organism
Homo sapiens
Length
360 residues
Mean pLDDT
90.5
Model
AF-Q9Y484-F1 v6
Model created
1 Aug 2025
PDB structures
3

Explore in 3D Color by confidence AlphaFold DB UniProt

Model confidence (pLDDT)

The mean pLDDT of this model is 90.5 (very high 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 accurate81%
70 to 90Confident: backbone generally right8%
50 to 70Low: treat with caution6%
Below 50Very low: often disordered regions6%

What pLDDT means and how to read it

Function

Component of the autophagy machinery that controls the major intracellular degradation process by which cytoplasmic materials are packaged into autophagosomes and delivered to lysosomes for degradation (PubMed:23435086, PubMed:28561066). Binds phosphatidylinositol 3-phosphate (PtdIns3P) (PubMed:28561066). Activated by the STK11/AMPK signaling pathway upon starvation, WDR45 is involved in autophagosome assembly downstream of WIPI2, regulating the size of forming autophagosomes (PubMed:28561066). Together with WIPI1, promotes ATG2 (ATG2A or ATG2B)-mediated lipid transfer by enhancing ATG2-association with phosphatidylinositol 3-monophosphate (PI3P)-containing membranes (PubMed:31271352).…

Subunit structure

Interacts with WIPI1 (PubMed:28561066). Interacts with WIPI2 (PubMed:28561066). Interacts with ATG2A and ATG2B (PubMed:28561066, PubMed:28820312, PubMed:32483132). Interacts with ULK1 (PubMed:28561066). May interact with the PRKAA1, PRKAA2, PRKAB1 and PRKAG1 subunits of the AMPK kinase (PubMed:28561066). May interact with NUDC (PubMed:28561066)

Subcellular location

Preautophagosomal structure, Cytoplasm

Disease associations

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
8KBXEM3.23 ÅA=1-360
8KC3EM7.0 ÅD=1-360
8Y1LEM7.05 ÅA=1-360

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.