Partitioning defective 6 homolog beta (Pard6b) is a 371-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q9JK83.
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The mean pLDDT of this model is 70.9 (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 band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 42% |
| 70 to 90 | Confident: backbone generally right | 13% |
| 50 to 70 | Low: treat with caution | 13% |
| Below 50 | Very low: often disordered regions | 32% |
What pLDDT means and how to read it
Adapter protein involved in asymmetrical cell division and cell polarization processes. Probably involved in formation of epithelial tight junctions. Association with PARD3 may prevent the interaction of PARD3 with F11R/JAM1, thereby preventing tight junction assembly. The PARD6-PARD3 complex links GTP-bound Rho small GTPases to atypical protein kinase C proteins
Interacts with PARD3. Interacts with GTP-bound forms of CDC42, RHOQ/TC10 and RAC1. Interacts with the N-terminal part of PRKCI and PRKCZ. Part of a complex with PARD3, CDC42 or RAC1 and PRKCI or PRKCZ. Part of a complex with LLGL1 and PRKCI. Interacts with ALS2CR19. Interacts with ECT2 (By similarity). Interacts with PALS1
Cytoplasm, Cell membrane, Cell junction, tight junction
Compare the prediction with experimentally determined structures of the same protein:
| PDB ID | Method | Resolution | Chains and residues |
|---|---|---|---|
| 6JUE | X-ray | 1.55 Å | A=362-371 |
| 1NF3 | X-ray | 2.1 Å | C/D=126-253 |
| 9EJK | EM | 3.08 Å | C=1-371 |
| 9EJL | EM | 3.48 Å | C=1-371 |
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