Q9Y6I3: Epsin-1 (EPN1)

Epsin-1 (EPN1) is a 576-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9Y6I3.

Gene
EPN1
Organism
Homo sapiens
Length
576 residues
Mean pLDDT
63.8
Model
AF-Q9Y6I3-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 63.8 (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 accurate26%
70 to 90Confident: backbone generally right12%
50 to 70Low: treat with caution24%
Below 50Very low: often disordered regions38%

What pLDDT means and how to read it

Function

Binds to membranes enriched in phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2). Modifies membrane curvature and facilitates the formation of clathrin-coated invaginations (By similarity). Regulates receptor-mediated endocytosis (PubMed:10393179, PubMed:10557078)

Subunit structure

Monomer. Binds clathrin, ZBTB16/ZNF145 and ITSN1 (By similarity). Binds ubiquitinated proteins (By similarity). Binds AP2A1 and AP2A2. Interacts with RALBP1 in a complex also containing NUMB and TFAP2A during interphase and mitosis. Interacts with AP2B1. Interacts with UBQLN2. Interacts with REPS2; the interaction is direct (PubMed:10393179, PubMed:10557078, PubMed:10764745). Interacts with…

Subcellular location

Cytoplasm, Cell membrane, Nucleus, Membrane, clathrin-coated pit

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
1KYDX-ray2.0 ÅP=366-370
1INZNMRA=1-144

More AlphaFold highlights

About this viewer

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