Q92963: GTP-binding protein Rit1 (RIT1)

GTP-binding protein Rit1 (RIT1) is a 219-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q92963.

Gene
RIT1
Organism
Homo sapiens
Length
219 residues
Mean pLDDT
87.1
Model
AF-Q92963-F1 v6
Model created
1 Aug 2025
PDB structures
3

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Model confidence (pLDDT)

The mean pLDDT of this model is 87.1 (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 accurate71%
70 to 90Confident: backbone generally right11%
50 to 70Low: treat with caution12%
Below 50Very low: often disordered regions6%

What pLDDT means and how to read it

Function

Plays a crucial role in coupling nerve growth factor (NGF) stimulation to the activation of both EPHB2 and MAPK14 signaling pathways and in NGF-dependent neuronal differentiation (PubMed:15632082). Involved in ELK1 transactivation through the Ras-MAPK signaling cascade that mediates a wide variety of cellular functions, including cell proliferation, survival, and differentiation (PubMed:23791108). Recognized by LZTR1, which mediates its ubiquitination by a BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex (PubMed:40934300)

Subunit structure

Interacts with AFDN, the C-terminal domain of RALGDS and RLF, but not with RIN1 and PIK3CA. RLF binds exclusively to the active GTP-bound form. Strongly interacts with BRAF, but only weakly with RAF1. BARF and RAF1 association is dependent upon the GTP-bound state. Interacts with RGL3 (By similarity). Interacts (GDP-bound form) with LZTR1; this interaction mediates RIT1 ubiquitination by BCR E3…

Subcellular location

Cell membrane

Disease associations

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
9MF1X-ray2.2 ÅA=2-197
4KLZX-ray2.3 ÅA=19-189
9MEYX-ray2.95 ÅA/C=2-197

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