ECM2
Extracellular matrix protein 2
Also known as: ECM2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O94769
- Gene
- ECM2
- Ensembl
- ENSG00000106823
- Chromosome
- 9
- Canonical length
- 699 aa
- Protein class
- Plasma proteins, Predicted secreted proteins
- Subcellular location
- Nucleoplasm,Nucleoli fibrillar center,Endoplasmic reticulum,Plasma membrane
- Secretome location
- Secreted to extracellular matrix
OverviewNCBI Gene
ECM2 encodes extracellular matrix protein 2, so named because it shares extensive similarity with known extracelluar matrix proteins. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2010]
Canonical amino-acid sequenceUniProt
699 residues, UniProt reviewed canonical sequence.
>O94769|ECM2
1 MKIAVLFCFF LLIIFQTDFG KNEEIPRKQR RKIYHRRLRK SSTSHKHRSN RQLGIQQTTV
61 FTPVARLPIV NFDYSMEEKF ESFSSFPGVE SSYNVLPGKK GHCLVKGITM YNKAVWSPEP
121 CTTCLCSDGR VLCDETMCHP QRCPQTVIPE GECCPVCSAT VSYSLLSGIA LNDRNEFSGD
181 SSEQREPTNL LHKQLPPPQV GMDRIVRKEA LQSEEDEEVK EEDTEQKRET PESRNQGQLY
241 SEGDSRGGDR KQRPGEERRL AHQQQRQGRE EEEDEEEEGE EGEEDEEDEE DPVRGDMFRM
301 PSRSPLPAPP RGTLRLPSGC SLSYRTISCI NAMLTQIPPL TAPQITSLEL TGNSIASIPD
361 EAFNGLPNLE RLDLSKNNIT SSGIGPKAFK LLKKLMRLNM DGNNLIQIPS QLPSTLEELK
421 VNENNLQAID EESLSDLNQL VTLELEGNNL SEANVNPLAF KPLKSLAYLR LGKNKFRIIP
481 QGLPGSIEEL YLENNQIEEI TEICFNHTRK INVIVLRYNK IEENRIAPLA WINQENLESI
541 DLSYNKLYHV PSYLPKSLLH LVLLGNQIER IPGYVFGHME PGLEYLYLSF NKLADDGMDR
601 VSFYGAYHSL RELFLDHNDL KSIPPGIQEM KALHFLRLNN NKIRNILPEE ICNAEEDDDS
661 NLEHLHLENN YIKIREIPSY TFSCIRSYSS IVLKPQNIKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ECM2 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
- Secreted
- Secreted
- Yes
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.41
- Highest tissue expression
- 117 nTPM
Expression across tissuesHPA
Tissue
- adipose tissue: 117 nTPM
- ovary: 110 nTPM
- liver: 77 nTPM
- blood vessel: 63 nTPM
- cervix: 42 nTPM
- endometrium: 39 nTPM
Single-cell type
- leydig cells: 225 nCPM
- adipocytes: 218 nCPM
- fibro-adipogenic progenitors: 169 nCPM
- epicardial cells: 166 nCPM
- ependymal cells: 131 nCPM
- bergmann glia: 111 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- hypothalamus: 26 nTPM
- white matter: 25 nTPM
- midbrain: 22 nTPM
- choroid plexus: 18 nTPM
- thalamus: 18 nTPM
- cerebellum: 13 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)
- 0.92
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.7
- DepMap mean gene effect
- 0.1
- DepMap dependency class
- none
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 ECM2 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 ECM2 as an antibody target. Whether an autoantibody or antibody against ECM2 could matter depends on whether native ECM2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ECM2 is annotated as secreted, so native ECM2 circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.
Annotation status
The present source text does not explicitly label ECM2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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