ELK3
ETS domain-containing protein Elk-3
Also known as: ELK3_HUMAN, ERP, NET, SAP2
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P41970
- Gene
- ELK3
- Ensembl
- ENSG00000111145
- Chromosome
- 12
- Canonical length
- 407 aa
- Protein class
- Cancer-related genes, Plasma proteins, Predicted intracellular proteins, Transcription factors
- Subcellular location
- Nucleoplasm,Mitochondria
OverviewNCBI Gene
This gene encodes a member of the ETS-domain transcription factor family and the ternary complex factor (TCF) subfamily. Proteins in this subfamily regulate transcription when recruited by serum response factor to bind to serum response elements. This protein is activated by signal-induced phosphorylation; studies in rodents suggest that it is a transcriptional inhibitor in the absence of Ras, but activates transcription when Ras is present. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2015]
Canonical amino-acid sequenceUniProt
407 residues, UniProt reviewed canonical sequence.
>P41970|ELK3
1 MESAITLWQF LLQLLLDQKH EHLICWTSND GEFKLLKAEE VAKLWGLRKN KTNMNYDKLS
61 RALRYYYDKN IIKKVIGQKF VYKFVSFPEI LKMDPHAVEI SRESLLLQDS DCKASPEGRE
121 AHKHGLAALR STSRNEYIHS GLYSSFTINS LQNPPDAFKA IKTEKLEEPP EDSPPVEEVR
181 TVIRFVTNKT DKHVTRPVVS LPSTSEAAAA SAFLASSVSA KISSLMLPNA ASISSASPFS
241 SRSPSLSPNS PLPSEHRSLF LEAACHDSDS LEPLNLSSGS KTKSPSLPPK AKKPKGLEIS
301 APPLVLSGTD IGSIALNSPA LPSGSLTPAF FTAQTPNGLL LTPSPLLSSI HFWSSLSPVA
361 PLSPARLQGP STLFQFPTLL NGHMPVPIPS LDRAASPVLL SSNSQKSLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ELK3 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)
- 0.63
- Highest tissue expression
- 39 nTPM
Expression across tissuesHPA
Tissue
- spleen: 39 nTPM
- esophagus: 36 nTPM
- lymph node: 35 nTPM
- smooth muscle: 35 nTPM
- tonsil: 35 nTPM
- adipose tissue: 35 nTPM
Single-cell type
- lymphatic endothelial cells: 470 nCPM
- esophageal apical cells: 301 nCPM
- vascular endothelial cells: 299 nCPM
- epididymal basal cells: 279 nCPM
- platelets: 269 nCPM
- ocular epithelial cells: 263 nCPM
Immune cell
- T-reg: 46 nTPM
- MAIT T-cell: 43 nTPM
- memory CD4 T-cell: 26 nTPM
- classical monocyte: 23 nTPM
- memory B-cell: 23 nTPM
- NK-cell: 20 nTPM
Brain region
- cerebellum: 37 nTPM
- choroid plexus: 32 nTPM
- medulla oblongata: 27 nTPM
- thalamus: 26 nTPM
- midbrain: 25 nTPM
- pons: 25 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)
- 0.72
- gnomAD pLI
- 0.08
- gnomAD missense Z
- 0.58
- DepMap mean gene effect
- 0.06
- 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
- angiogenesis
- cell differentiation
- negative regulation of transcription by RNA polymerase II
- positive regulation of transcription by RNA polymerase II
- regulation of transcription by RNA polymerase II
- signal transduction
- wound healing
Molecular functions
- DNA-binding transcription activator activity, RNA polymerase II-specific
- DNA-binding transcription factor activity
- DNA-binding transcription factor activity, RNA polymerase II-specific
- DNA-binding transcription repressor activity, RNA polymerase II-specific
- purine-rich negative regulatory element binding
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
- sequence-specific double-stranded DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ELK3 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 ELK3 as an antibody target. Whether an autoantibody or antibody against ELK3 could matter depends on whether native ELK3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ELK3 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 ELK3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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