Inactive tyrosine-protein kinase PRAG1 (PRAG1) is a 1406-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q86YV5.
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The mean pLDDT of this model is 50.2 (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 band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 17% |
| 70 to 90 | Confident: backbone generally right | 8% |
| 50 to 70 | Low: treat with caution | 5% |
| Below 50 | Very low: often disordered regions | 70% |
What pLDDT means and how to read it
Catalytically inactive protein kinase that acts as a scaffold protein. Functions as an effector of the small GTPase RND2, which stimulates RhoA activity and inhibits NGF-induced neurite outgrowth (By similarity). Promotes Src family kinase (SFK) signaling by regulating the subcellular localization of CSK, a negative regulator of these kinases, leading to the regulation of cell morphology and motility by a CSK-dependent mechanism (By similarity). Acts as a critical coactivator of Notch signaling (By similarity)
Homodimer (PubMed:29079850). Dimerization leads to the catalytic activation of CSK (By similarity). Interacts (via C-terminus) with RND2 (By similarity). Interacts with CSK (via SH2 domain) in a Tyr-413 phosphorylation-dependent manner; this interaction potentiates kinase activity of CSK (By similarity). Interacts with PEAK1 (PubMed:29079850). Interacts with NOTCH1 intracellular domain (N1ICD)…
Cytoplasm, Cell junction, focal adhesion, Nucleus
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