Seroatlas · Human Serome Atlas

RIT1

GTP-binding protein Rit1

Also known as: MGC125864, MGC125865, RIBB, RIT, RIT1_HUMAN, ROC1

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q92963
Gene
RIT1
Ensembl
ENSG00000143622
Chromosome
1
Canonical length
219 aa
Protein class
Cancer-related genes, Disease related genes, Enzymes, Human disease related genes, Potential drug targets, Predicted intracellular proteins

OverviewNCBI Gene

This gene encodes a member of a subfamily of Ras-related GTPases. The encoded protein is involved in regulating p38 MAPK-dependent signaling cascades related to cellular stress. This protein also cooperates with nerve growth factor to promote neuronal development and regeneration. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Feb 2012]

Canonical amino-acid sequenceUniProt

219 residues, UniProt reviewed canonical sequence.

>Q92963|RIT1
     1  MDSGTRPVGS CCSSPAGLSR EYKLVMLGAG GVGKSAMTMQ FISHRFPEDH DPTIEDAYKI
    61  RIRIDDEPAN LDILDTAGQA EFTAMRDQYM RAGEGFIICY SITDRRSFHE VREFKQLIYR
   121  VRRTDDTPVV LVGNKSDLKQ LRQVTKEEGL ALAREFSCPF FETSAAYRYY IDDVFHALVR
   181  EIRRKEKEAV LAMEKKSKPK NSVWKRLKSP FRKKKDSVT

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against RIT1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Cell surface
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.35
Highest tissue expression
65 nTPM

Expression across tissuesHPA

Tissue

  • bone marrow: 65 nTPM
  • esophagus: 36 nTPM
  • kidney: 22 nTPM
  • vagina: 22 nTPM
  • lung: 22 nTPM
  • spleen: 21 nTPM

Single-cell type

  • esophageal apical cells: 417 nCPM
  • neutrophils: 344 nCPM
  • platelets: 305 nCPM
  • monocytes: 94 nCPM
  • esophageal suprabasal cells: 94 nCPM
  • megakaryocytes: 80 nCPM

Immune cell

  • neutrophil: 104 nTPM
  • eosinophil: 46 nTPM
  • classical monocyte: 40 nTPM
  • myeloid DC: 30 nTPM
  • total PBMC: 29 nTPM
  • non-classical monocyte: 29 nTPM

Brain region

  • medulla oblongata: 22 nTPM
  • thalamus: 21 nTPM
  • white matter: 20 nTPM
  • midbrain: 19 nTPM
  • pons: 19 nTPM
  • hypothalamus: 18 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about RIT1.

Disease | AllUniProt

Conditions RIT1 is implicated in, by any mechanism.

Disease | GeneticClinVar

37 pathogenic / likely-pathogenic of 408 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.65
gnomAD pLI
0.13
gnomAD missense Z
2.08
DepMap mean gene effect
-0.24
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 11% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of RIT1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads RIT1 as an antibody target. Whether an autoantibody or antibody against RIT1 could matter depends on whether native RIT1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

RIT1 is annotated at the cell surface, where native RIT1 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.

Annotation status

The present source text does not explicitly label RIT1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/RIT1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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