HNRNPF
Heterogeneous nuclear ribonucleoprotein F
Also known as: HNRPF, HNRPF_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P52597
- Gene
- HNRNPF
- Ensembl
- ENSG00000169813
- Chromosome
- 10
- Canonical length
- 415 aa
- Protein class
- Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm
OverviewNCBI Gene
This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA binding proteins that complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and regulate alternative splicing, polyadenylation, and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has three repeats of quasi-RRM domains that bind to RNAs which have guanosine-rich sequences. This protein is very similar to the family member hnRPH. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
415 residues, UniProt reviewed canonical sequence.
>P52597|HNRNPF
1 MMLGPEGGEG FVVKLRGLPW SCSVEDVQNF LSDCTIHDGA AGVHFIYTRE GRQSGEAFVE
61 LGSEDDVKMA LKKDRESMGH RYIEVFKSHR TEMDWVLKHS GPNSADSAND GFVRLRGLPF
121 GCTKEEIVQF FSGLEIVPNG ITLPVDPEGK ITGEAFVQFA SQELAEKALG KHKERIGHRY
181 IEVFKSSQEE VRSYSDPPLK FMSVQRPGPY DRPGTARRYI GIVKQAGLER MRPGAYSTGY
241 GGYEEYSGLS DGYGFTTDLF GRDLSYCLSG MYDHRYGDSE FTVQSTTGHC VHMRGLPYKA
301 TENDIYNFFS PLNPVRVHIE IGPDGRVTGE ADVEFATHEE AVAAMSKDRA NMQHRYIELF
361 LNSTTGASNG AYSSQVMQGM GVSAAQATYS GLESQSVSGC YGAGYSGQNS MGGYDLocalizationUniProt · AlphaFold · HPA
Whether an antibody against HNRNPF 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)
- 0.45
- Highest tissue expression
- 175 nTPM
Expression across tissuesHPA
Tissue
- thymus: 175 nTPM
- lymph node: 167 nTPM
- tonsil: 166 nTPM
- liver: 160 nTPM
- bone marrow: 151 nTPM
- urinary bladder: 146 nTPM
Single-cell type
- extravillous trophoblasts: 489 nCPM
- gastric progenitor cells: 479 nCPM
- migrating cytotrophoblasts: 456 nCPM
- early spermatids: 441 nCPM
- fallopian tube ciliated cells: 402 nCPM
- late primary spermatocytes: 396 nCPM
Immune cell
- total PBMC: 452 nTPM
- T-reg: 311 nTPM
- MAIT T-cell: 296 nTPM
- NK-cell: 283 nTPM
- memory CD8 T-cell: 268 nTPM
- intermediate monocyte: 265 nTPM
Brain region
- choroid plexus: 93 nTPM
- white matter: 75 nTPM
- medulla oblongata: 67 nTPM
- midbrain: 65 nTPM
- thalamus: 62 nTPM
- spinal cord: 60 nTPM
ReferencesPubMed · IEDB
Publications for HNRNPF from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.
Reference: AutoantibodyPubMed
2 publications
- Combined measurement of CA 15-3 with novel autoantibodies improves diagnostic accuracy for breast cancer.
2013 · Onco Targets Ther · RCR 0.9 · 29 citations - Antibodies to heterogeneous nuclear ribonucleoproteins in sera from patients with rheumatic autoimmune diseases.
1984 · J Clin Immunol · RCR 0.2 · 11 citations
Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.
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)
- 0.29
- gnomAD pLI
- 0.96
- gnomAD missense Z
- 2.94
- DepMap mean gene effect
- -0.23
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% 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 HNRNPF 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 HNRNPF as an antibody target. Whether an autoantibody or antibody against HNRNPF could matter depends on whether native HNRNPF is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
HNRNPF 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 HNRNPF as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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