O75581: Low-density lipoprotein receptor-related protein 6 (LRP6)

Low-density lipoprotein receptor-related protein 6 (LRP6) is a 1613-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: O75581.

Gene
LRP6
Organism
Homo sapiens
Length
1613 residues
Mean pLDDT
79.2
Model
AF-O75581-F1 v6
Model created
1 Aug 2025
PDB structures
27

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Model confidence (pLDDT)

The mean pLDDT of this model is 79.2 (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 accurate51%
70 to 90Confident: backbone generally right28%
50 to 70Low: treat with caution4%
Below 50Very low: often disordered regions17%

What pLDDT means and how to read it

Function

Component of the Wnt-Fzd-LRP5-LRP6 complex that triggers beta-catenin signaling through inducing aggregation of receptor-ligand complexes into ribosome-sized signalosomes (PubMed:11357136, PubMed:11448771, PubMed:15778503, PubMed:16341017, PubMed:16513652, PubMed:17326769, PubMed:17400545, PubMed:19107203, PubMed:19293931, PubMed:19801552, PubMed:28341812, PubMed:34896607). Cell-surface coreceptor of Wnt/beta-catenin signaling, which plays a pivotal role in various processes including retinal angiogenesis and bone formation (PubMed:11357136, PubMed:11448771, PubMed:15778503, PubMed:16341017, PubMed:16513652, PubMed:17326769, PubMed:17400545, PubMed:19107203, PubMed:19293931,…

Subunit structure

Homodimer; disulfide-linked. Forms phosphorylated oligomer aggregates on Wnt-signaling. Forms a WNT-signaling complex formed of a WNT protein, a FZD protein and LRP5 or LRP6. Interacts (via the extracellular domain) with WNT1; the interaction is enhanced by prior formation of the Wnt/Fzd complex. Interacts (via the beta-propeller regions 3 and 4) with WNT3A. Interacts (via the beta-propeller…

Subcellular location

Cell membrane, Endoplasmic reticulum, Membrane raft

Disease associations

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
3SOVX-ray1.27 ÅA=20-326
7NAMX-ray1.6 ÅA=20-326
8FFEX-ray1.72 ÅA=20-631
3SOBX-ray1.9 ÅB=20-335
3SOQX-ray1.9 ÅA=20-326
4A0PX-ray1.9 ÅA=629-1244
8DVMX-ray2.0 ÅA=631-1253
4NM5X-ray2.3 ÅC=1567-1575
4NM7X-ray2.3 ÅC=1602-1610
8DVLX-ray2.5 ÅA=631-1253
5AIRX-ray2.53 ÅA/B=1565-1575
8DVNX-ray2.53 ÅA=631-1253
6H15X-ray2.6 ÅA/B=630-1244
9FIXX-ray2.78 ÅA=1516-1526
3S2KX-ray2.8 ÅA/B=630-1246
3S8ZX-ray2.8 ÅA=629-1243
3S94X-ray2.8 ÅA/B=20-630
9FIWX-ray2.82 ÅA=1516-1521
9FIYX-ray2.88 ÅA=1521-1526
4DG6X-ray2.9 ÅA=20-635

Showing 20 of 27 experimental structures (best resolution first).

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