A0A1Z0YU59: Mambaquaretin-1

Mambaquaretin-1 is a 57-residue protein from Dendroaspis angusticeps. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: A0A1Z0YU59.

Organism
Dendroaspis angusticeps
Length
57 residues
Mean pLDDT
97.1
Model
AF-A0A1Z0YU59-F1 v6
Model created
1 Aug 2025
PDB structures
2

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Model confidence (pLDDT)

The mean pLDDT of this model is 97.1 (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 accurate97%
70 to 90Confident: backbone generally right4%
50 to 70Low: treat with caution0%
Below 50Very low: often disordered regions0%

What pLDDT means and how to read it

Function

Selectively interacts with vasopressin V2 receptor (V2R/AVPR2) and fully inhibits three major signaling pathways of this receptor that are GalphaS protein, the interaction with beta-arrestin and activation of MAP kinase (PubMed:28630289, PubMed:35122240). Inhibits vasopressin binding human V2R in the nanomolar range (Ki=5.02 nM), and also potently inhibits vasopressin-induced cAMP production (IC(50)=94 nM) (PubMed:35122240). In vivo, this protein shows an aquaretic effect (PubMed:28630289, PubMed:35122240). Urine output increases and urine osmolality decreases dramatically under treatment with this protein, without differences observed between healthy mice and the pcy mice model of the…

Subcellular location

Secreted

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
5M4VX-ray1.06 ÅA=1-57
9HB3EM2.5 ÅA=1-57

More AlphaFold highlights

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