Seroatlas · Human Serome Atlas

RASGRF1

Ras-specific guanine nucleotide-releasing factor 1

Also known as: CDC25, CDC25L, GNRP, GRF1, GRF55, H-GRF55, PP13187, RGRF1_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q13972
Gene
RASGRF1
Ensembl
ENSG00000058335
Chromosome
15
Canonical length
1273 aa
Protein class
Predicted intracellular proteins, RAS pathway related proteins
Subcellular location
Golgi apparatus
Quaternary structure
Homooligomer

OverviewNCBI Gene

The protein encoded by this gene is a guanine nucleotide exchange factor (GEF) similar to the Saccharomyces cerevisiae CDC25 gene product. Functional analysis has demonstrated that this protein stimulates the dissociation of GDP from RAS protein. The studies of the similar gene in mouse suggested that the Ras-GEF activity of this protein in brain can be activated by Ca2+ influx, muscarinic receptors, and G protein beta-gamma subunit. Mouse studies also indicated that the Ras-GEF signaling pathway mediated by this protein may be important for long-term memory. Alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Mar 2009]

Canonical amino-acid sequenceUniProt

1273 residues, UniProt reviewed canonical sequence.

>Q13972|RASGRF1
     1  MQKGIRLNDG HVASLGLLAR KDGTRKGYLS KRSSDNTKWQ TKWFALLQNL LFYFESDSSS
    61  RPSGLYLLEG CVCDRAPSPK PALSAKEPLE KQHYFTVNFS HENQKALELR TEDAKDCDEW
   121  VAAIAHASYR TLATEHEALM QKYLHLLQIV ETEKTVAKQL RQQIEDGEIE IERLKAEITS
   181  LLKDNERIQS TQTVAPNDED SDIKKIKKVQ SFLRGWLCRR KWKTIIQDYI RSPHADSMRK
   241  RNQVVFSMLE AEAEYVQQLH ILVNNFLRPL RMAASSKKPP ITHDDVSSIF LNSETIMFLH
   301  QIFYQGLKAR ISSWPTLVLA DLFDILLPML NIYQEFVRNH QYSLQILAHC KQNRDFDKLL
   361  KHYEAKPDCE ERTLETFLTY PMFQIPRYIL TLHELLAHTP HEHVERNSLD YAKSKLEELS
   421  RIMHDEVSET ENIRKNLAIE RMIIEGCEIL LDTSQTFVRQ GSLIQVPMSE KGKITRGRLG
   481  SLSLKKEGER QCFLFSKHLI ICTRGSGGKL HLTKNGVISL IDCTLLEEPE STEEEAKGSG
   541  QDIDHLDFKI GVEPKDSPPF TVILVASSRQ EKAAWTSDIS QCVDNIRCNG LMMNAFEENS
   601  KVTVPQMIKR TREGTREAEM SRSDASLYCD DVDIRFSKTM NSCKVLQIRY ASVERLLERL
   661  TDLRFLSIDF LNTFLHSYRV FTTAIVVLDK LITIYKKPIS AIPARWLRSL ELLFASGQNN
   721  KLLYGEPPKS PRATRKFSSP PPLSITKTSS PSRRRKLSLN IPIITGGKAL DLAALSCNSN
   781  GYTSMYSAMS PFSKATLDTS KLYVSSSFTN KIPDEGDTTP EKPEDPSALS KQSSEVSMRE
   841  ESDIDQNQSD DGDTETSPTK SPTTPKSVKN KNSSEFPLFS YNNGVVMTSC RELDNNRSAL
   901  SAASAFAIAT AGANEGTPNK EKYRRMSLAS AGFPPDQRNG DKEFVIRRAA TNRVLNVLRH
   961  WVSKHSQDFE TNDELKCKVI GFLEEVMHDP ELLTQERKAA ANIIRTLTQE DPGDNQITLE
  1021  EITQMAEGVK AEPFENHSAL EIAEQLTLLD HLVFKKIPYE EFFGQGWMKL EKNERTPYIM
  1081  KTTKHFNDIS NLIASEIIRN EDINARVSAI EKWVAVADIC RCLHNYNAVL EITSSMNRSA
  1141  IFRLKKTWLK VSKQTKALID KLQKLVSSEG RFKNLREALK NCDPPCVPYL GMYLTDLAFI
  1201  EEGTPNYTED GLVNFSKMRM ISHIIREIRQ FQQTAYKIEH QAKVTQYLLD QSFVMDEESL
  1261  YESSLRIEPK LPT

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against RASGRF1 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)
0.38
Highest tissue expression
52 nTPM

Expression across tissuesHPA

Tissue

  • cerebellum: 52 nTPM
  • cerebral cortex: 31 nTPM
  • spinal cord: 26 nTPM
  • hippocampal formation: 16 nTPM
  • hypothalamus: 12 nTPM
  • midbrain: 11 nTPM

Single-cell type

  • retinal amacrine cells: 240 nCPM
  • alveolar cells type 2: 152 nCPM
  • brain excitatory neurons: 127 nCPM
  • oligodendrocytes: 126 nCPM
  • brain inhibitory neurons: 85 nCPM
  • other brain neurons: 52 nCPM

Immune cell

  • memory B-cell: 0.2 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • white matter: 84 nTPM
  • cerebral cortex: 80 nTPM
  • cerebellum: 80 nTPM
  • pons: 64 nTPM
  • thalamus: 60 nTPM
  • medulla oblongata: 56 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about RASGRF1.

Disease | ImmuneIEDB

Conditions an epitope on RASGRF1 was assayed in.

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)
0.21
gnomAD pLI
1
gnomAD missense Z
4.21
DepMap mean gene effect
0.06
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% 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 RASGRF1 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 RASGRF1 as an antibody target. Whether an autoantibody or antibody against RASGRF1 could matter depends on whether native RASGRF1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

RASGRF1 is annotated at the cell surface, where native RASGRF1 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 RASGRF1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/RASGRF1. 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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