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 LFLNSCPKGKLocalizationUniProt · 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
- anterior/posterior pattern specification
- mitochondrial RNA catabolic process
- morphogenesis of embryonic epithelium
- mRNA processing
- positive regulation of mitochondrial RNA catabolic process
- regulation of RNA splicing
- tRNA processing
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- RNA recognition motif domain
- Nucleotide-binding alpha-beta plait domain superfamily
- RNA-binding domain superfamily
- Epithelial Splicing Regulatory
- RNA recognition motif
- GRSF-1, RNA recognition motif 2
- GRSF-1, RNA recognition motif 1
- GRSF-1, RNA recognition motif 3
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.
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