Q969E3: Urocortin-3 (UCN3)

Urocortin-3 (UCN3) is a 161-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q969E3.

Gene
UCN3
Organism
Homo sapiens
Length
161 residues
Mean pLDDT
65.6
Model
AF-Q969E3-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 65.6 (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 accurate12%
70 to 90Confident: backbone generally right23%
50 to 70Low: treat with caution47%
Below 50Very low: often disordered regions18%

What pLDDT means and how to read it

Function

Hormone that plays a central role in whole body adaptation to stress (PubMed:11329063, PubMed:11416224). Released by the hypothalamus primarily in response to physical or psychological stress and acts by binding to CRH receptor CRHR2 (PubMed:11329063, PubMed:11416224, PubMed:20966082, PubMed:26350463). UCN3-dependent signaling plays a key role in the metabolic regulation and energy homeostasis in responses to stress, acting as an anxiolytic (PubMed:11329063, PubMed:11416224). Promotes energy balance by reducing food intake, improving insulin sensitivity and managing blood glucose levels in response to metabolic stress (By similarity). In contrast to CRH and UCN, does not activate the…

Subcellular location

Secreted

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
3N93X-ray2.5 ÅC=142-157
2RMHNMRA=120-157

More AlphaFold highlights

About this viewer

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