Seroatlas · Human Serome Atlas

GRSF1

G-rich sequence factor 1

Also known as: GRSF1_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q12849
Gene
GRSF1
Ensembl
ENSG00000132463
Chromosome
4
Canonical length
480 aa
Protein class
Predicted intracellular proteins
Subcellular location
Mitochondria

OverviewNCBI Gene

The protein encoded by this gene is a cellular protein that binds RNAs containing the G-rich element. The protein is localized in the cytoplasm, and has been shown to stimulate translation of viral mRNAs in vitro. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

480 residues, UniProt reviewed canonical sequence.

>Q12849|GRSF1
     1  MAGTRWVLGA LLRGCGCNCS SCRRTGAACL PFYSAAGSIP SGVSGRRRLL LLLGAAAAAA
    61  SQTRGLQTGP VPPGRLAGPP AVATSAAAAA AASYSALRAS LLPQSLAAAA AVPTRSYSQE
   121  SKTTYLEDLP PPPEYELAPS KLEEEVDDVF LIRAQGLPWS CTMEDVLNFF SDCRIRNGEN
   181  GIHFLLNRDG KRRGDALIEM ESEQDVQKAL EKHRMYMGQR YVEVYEINNE DVDALMKSLQ
   241  VKSSPVVNDG VVRLRGLPYS CNEKDIVDFF AGLNIVDITF VMDYRGRRKT GEAYVQFEEP
   301  EMANQALLKH REEIGNRYIE IFPSRRNEVR THVGSYKGKK IASFPTAKYI TEPEMVFEEH
   361  EVNEDIQPMT AFESEKEIEL PKEVPEKLPE AADFGTTSSL HFVHMRGLPF QANAQDIINF
   421  FAPLKPVRIT MEYSSSGKAT GEADVHFETH EDAVAAMLKD RSHVHHRYIE LFLNSCPKGK

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against GRSF1 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
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.49
Highest tissue expression
242 nTPM

Expression across tissuesHPA

Tissue

  • skeletal muscle: 242 nTPM
  • tongue: 141 nTPM
  • choroid plexus: 80 nTPM
  • salivary gland: 75 nTPM
  • heart muscle: 73 nTPM
  • thymus: 69 nTPM

Single-cell type

  • extravillous trophoblasts: 193 nCPM
  • parietal cells: 193 nCPM
  • migrating cytotrophoblasts: 147 nCPM
  • esophageal apical cells: 144 nCPM
  • cytotrophoblasts: 136 nCPM
  • esophageal suprabasal cells: 126 nCPM

Immune cell

  • myeloid DC: 23 nTPM
  • plasmacytoid DC: 22 nTPM
  • NK-cell: 18 nTPM
  • classical monocyte: 15 nTPM
  • non-classical monocyte: 14 nTPM
  • memory CD8 T-cell: 12 nTPM

Brain region

  • choroid plexus: 80 nTPM
  • white matter: 50 nTPM
  • hypothalamus: 49 nTPM
  • midbrain: 44 nTPM
  • cerebellum: 44 nTPM
  • medulla oblongata: 41 nTPM

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)
1.23
gnomAD pLI
0
gnomAD missense Z
-0.51
DepMap mean gene effect
-0.24
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% 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 GRSF1 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 GRSF1 as an antibody target. Whether an autoantibody or antibody against GRSF1 could matter depends on whether native GRSF1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

GRSF1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label GRSF1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/GRSF1. 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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