TARDBP
TAR DNA-binding protein 43
Also known as: ALS10, TADBP_HUMAN, TDP-43
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q13148
- Gene
- TARDBP
- Ensembl
- ENSG00000120948
- Chromosome
- 1
- Canonical length
- 414 aa
- Protein class
- Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm
- Quaternary structure
- Homodimer
OverviewNCBI Gene
HIV-1, the causative agent of acquired immunodeficiency syndrome (AIDS), contains an RNA genome that produces a chromosomally integrated DNA during the replicative cycle. Activation of HIV-1 gene expression by the transactivator Tat is dependent on an RNA regulatory element (TAR) located downstream of the transcription initiation site. The protein encoded by this gene is a transcriptional repressor that binds to chromosomally integrated TAR DNA and represses HIV-1 transcription. In addition, this protein regulates alternate splicing of the CFTR gene. A similar pseudogene is present on chromosome 20. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
414 residues, UniProt reviewed canonical sequence.
>Q13148|TARDBP
1 MSEYIRVTED ENDEPIEIPS EDDGTVLLST VTAQFPGACG LRYRNPVSQC MRGVRLVEGI
61 LHAPDAGWGN LVYVVNYPKD NKRKMDETDA SSAVKVKRAV QKTSDLIVLG LPWKTTEQDL
121 KEYFSTFGEV LMVQVKKDLK TGHSKGFGFV RFTEYETQVK VMSQRHMIDG RWCDCKLPNS
181 KQSQDEPLRS RKVFVGRCTE DMTEDELREF FSQYGDVMDV FIPKPFRAFA FVTFADDQIA
241 QSLCGEDLII KGISVHISNA EPKHNSNRQL ERSGRFGGNP GGFGNQGGFG NSRGGGAGLG
301 NNQGSNMGGG MNFGAFSINP AMMAAAQAAL QSSWGMMGML ASQQNQSGPS GNNQNQGNMQ
361 REPNQAFGSG NNSYSGSNSG AAIGWGSASN AGSGSGFNGG FGSSMDSKSS GWGMLocalizationUniProt · AlphaFold · HPA
Whether an antibody against TARDBP 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)
- 0.5
- Highest tissue expression
- 126 nTPM
Expression across tissuesHPA
Tissue
- skeletal muscle: 126 nTPM
- tonsil: 115 nTPM
- retina: 111 nTPM
- thymus: 107 nTPM
- lymph node: 99 nTPM
- esophagus: 99 nTPM
Single-cell type
- myonuclei: 135 nCPM
- basal keratinocytes: 110 nCPM
- erythrocyte progenitors: 108 nCPM
- extravillous trophoblasts: 107 nCPM
- epididymal basal cells: 106 nCPM
- suprabasal keratinocytes: 105 nCPM
Immune cell
- NK-cell: 67 nTPM
- myeloid DC: 62 nTPM
- MAIT T-cell: 58 nTPM
- memory B-cell: 55 nTPM
- T-reg: 54 nTPM
- naive CD8 T-cell: 51 nTPM
Brain region
- cerebellum: 100 nTPM
- white matter: 99 nTPM
- basal ganglia: 91 nTPM
- choroid plexus: 87 nTPM
- hypothalamus: 87 nTPM
- midbrain: 85 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about TARDBP.
Disease | AllUniProt
Conditions TARDBP is implicated in, by any mechanism.
- Amyotrophic lateral sclerosis 10 (ALS10) MIM:612069
Disease | GeneticClinVar
24 pathogenic / likely-pathogenic of 299 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Amyotrophic lateral sclerosis type 10
- FRONTOTEMPORAL LOBAR DEGENERATION WITH TDP43 INCLUSIONS, TARDBP-RELATED
- TARDBP-related disorder
- FRONTOTEMPORAL DEMENTIA WITH TDP43 INCLUSIONS, TARDBP-RELATED
- Motor neuron disease
Disease | ImmuneIEDB
Conditions an epitope on TARDBP was assayed in.
- amyotrophic lateral sclerosis B and T cell
Disease | AutoantibodyPubMed
Conditions in which antibodies against TARDBP are reported. Each links to that disease's full target list.
Showing 0 of 1 — disease pages carrying at least 10 antigens.
ReferencesPubMed · IEDB
Publications for TARDBP 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
3 publications
- TDP-43 and HERV-K Envelope-Specific Immunogenic Epitopes Are Recognized in ALS Patients.
2021 · Viruses · RCR 1.6 · 24 citations - Serum naturally occurring anti-TDP-43 auto-antibodies are increased in amyotrophic lateral sclerosis.
2021 · Sci Rep · RCR 1.2 · 17 citations - TDP-43-specific Autoantibody Decline in Patients With Amyotrophic Lateral Sclerosis.
2021 · Neurol Neuroimmunol Neuroinflamm · RCR 0.6 · 12 citations
Reference: B cellIEDB
1 publication
- TDP-43 and HERV-K Envelope-Specific Immunogenic Epitopes Are Recognized in ALS Patients.
2021 · Viruses · RCR 1.6 · 24 citations
Reference: T cellIEDB
1 publication
- Low T-cell reactivity to TDP-43 peptides in ALS.
2023 · Front Immunol · RCR 1.7 · 14 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. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). 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)
- 0.28
- gnomAD pLI
- 0.99
- gnomAD missense Z
- 3.71
- DepMap mean gene effect
- -0.91
- DepMap dependency class
- common
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
- 3'-UTR-mediated mRNA destabilization
- 3'-UTR-mediated mRNA stabilization
- amyloid fibril formation
- host-mediated suppression of viral transcription
- mRNA processing
- negative regulation of gene expression
- negative regulation of protein phosphorylation
- positive regulation of insulin secretion
- positive regulation of protein import into nucleus
- regulation of apoptotic process
- regulation of cell cycle
- regulation of circadian rhythm
- regulation of gene expression
- regulation of protein stability
- response to endoplasmic reticulum stress
- rhythmic process
- RNA splicing
- nuclear inner membrane organization
Molecular functions
- DNA binding
- double-stranded DNA binding
- identical protein binding
- lipid binding
- molecular condensate scaffold activity
- mRNA 3'-UTR binding
- pre-mRNA intronic binding
- RNA binding
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- RNA recognition motif domain
- Nucleotide-binding alpha-beta plait domain superfamily
- RNA-binding domain superfamily
- RNA recognition motif
- TAR DNA-binding protein 43, N-terminal
- TAR DNA-binding protein 43, C-terminal
- TAR DNA-binding protein 43, N-terminal domain
- TAR DNA-binding protein 43, C-terminal
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of TARDBP 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 TARDBP as an antibody target. Whether an autoantibody or antibody against TARDBP could matter depends on whether native TARDBP is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
TARDBP 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 TARDBP as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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