Q99104: Unconventional myosin-Va (Myo5a)

Unconventional myosin-Va (Myo5a) is a 1853-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q99104.

Gene
Myo5a
Organism
Mus musculus
Length
1853 residues
Mean pLDDT
76.4
Model
AF-Q99104-F1 v6
Model created
1 Aug 2025
PDB structures
10

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Model confidence (pLDDT)

The mean pLDDT of this model is 76.4 (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 accurate24%
70 to 90Confident: backbone generally right49%
50 to 70Low: treat with caution16%
Below 50Very low: often disordered regions11%

What pLDDT means and how to read it

Function

Processive actin-based motor that can move in large steps approximating the 36-nm pseudo-repeat of the actin filament. Can hydrolyze ATP in the presence of actin, which is essential for its function as a motor protein (By similarity). Involved in melanosome transport (PubMed:1996138). Also mediates the transport of vesicles to the plasma membrane (PubMed:22908308). May also be required for some polarization process involved in dendrite formation (By similarity)

Subunit structure

May be a homodimer, which associates with multiple calmodulin or myosin light chains (PubMed:17151196). Interacts with RIPL2, the interaction is required for its role in dendrite formation (PubMed:23798443). Interacts with MLPH (PubMed:11887186). Interacts with SYTL4 (PubMed:23798443). Interacts with MYRIP (PubMed:12221080). Interacts with RAB10; mediates the transport to the plasma membrane of…

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
6KU0X-ray1.6 ÅA/C=1469-1853
4KP3X-ray2.4 ÅA/B=1469-1853
2IX7X-ray2.5 ÅC=763-820
3WB8X-ray2.5 ÅA/B/C/D/E/F/G/H=1469-1853
4ZLKX-ray2.5 ÅA=1-791
8RBFEM4.2 ÅA=5-767
8R9VEM4.4 ÅA=1-797
7YV9EM4.78 ÅA/H/X/Y=1-1853
8RBGEM4.9 ÅA=1-797
8OF8EM7.5 ÅM=1-907

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