MATN4
Matrilin-4
Also known as: MATN4_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O95460
- Gene
- MATN4
- Ensembl
- ENSG00000124159
- Chromosome
- 20
- Canonical length
- 622 aa
- Protein class
- Plasma proteins, Predicted secreted proteins
- Secretome location
- Secreted to extracellular matrix
OverviewNCBI Gene
This gene encodes a member of von Willebrand factor A domain-containing protein family. The proteins of this family are thought to be involved in the formation of filamentous networks in the extracellular matrices of various tissues. This family member is thought to be play a role in reorganizing and regenerating the corneal matrix in granular and lattice type I dystrophies. It may also be involved in wound healing in the dentin-pulp complex. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2013]
Canonical amino-acid sequenceUniProt
622 residues, UniProt reviewed canonical sequence.
>O95460|MATN4
1 MRGLLCWPVL LLLLQPWETQ LQLTGPRCHT GPLDLVFVID SSRSVRPFEF ETMRQFLMGL
61 LRGLNVGPNA TRVGVIQYSS QVQSVFPLRA FSRREDMERA IRDLVPLAQG TMTGLAIQYA
121 MNVAFSVAEG ARPPEERVPR VAVIVTDGRP QDRVAEVAAQ ARARGIEIYA VGVQRADVGS
181 LRAMASPPLD EHVFLVESFD LIQEFGLQFQ SRLCGKDQCA EGGHGCQHQC VNAWAMFHCT
241 CNPGYKLAAD NKSCLAIDLC AEGTHGCEHH CVNSPGSYFC HCQVGFVLQQ DQRSCRAIDY
301 CSFGNHSCQH ECVSTPGGPR CHCREGHDLQ PDGRSCQVRD LCNGVDHGCE FQCVSEGLSY
361 RCLCPEGRQL QADGKSCNRC REGHVDLVLL VDGSKSVRPQ NFELVKRFVN QIVDFLDVSP
421 EGTRVGLVQF SSRVRTEFPL GRYGTAAEVK QAVLAVEYME RGTMTGLALR HMVEHSFSEA
481 QGARPRALNV PRVGLVFTDG RSQDDISVWA ARAKEEGIVM YAVGVGKAVE AELREIASEP
541 AELHVSYAPD FGTMTHLLEN LRGSICPEEG ISAGTELRSP CECESLVEFQ GRTLGALESL
601 TLNLAQLTAR LEDLENQLAN QKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against MATN4 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)
- 0.32
- Highest tissue expression
- 23 nTPM
Expression across tissuesHPA
Tissue
- pancreas: 23 nTPM
- skin: 2.7 nTPM
- breast: 1.7 nTPM
- testis: 1.1 nTPM
- cervix: 1 nTPM
- salivary gland: 0.8 nTPM
Single-cell type
- fibroblasts: 6.7 nCPM
- salivary acinar cells: 5.8 nCPM
- salivary basal cells: 5.8 nCPM
- differentiating spermatogonia: 5.4 nCPM
- lacrimal acinar cells: 5.4 nCPM
- basal keratinocytes: 4.7 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
- cerebral cortex: 0.2 nTPM
- white matter: 0.2 nTPM
- amygdala: 0.1 nTPM
- basal ganglia: 0.1 nTPM
- choroid plexus: 0.1 nTPM
- hippocampal formation: 0.1 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MATN4.
Disease | GeneticClinVar
1 pathogenic / likely-pathogenic of 113 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
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)
- 1.02
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.12
- DepMap mean gene effect
- -0.05
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% 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
- EGF-like domain
- EGF-like calcium-binding domain
- von Willebrand factor, type A
- Growth factor receptor cysteine-rich domain superfamily
- Matrilin, coiled-coil trimerisation domain
- Complement Clr-like EGF domain
- Matrilin, coiled-coil domain superfamily
- von Willebrand factor A-like domain superfamily
- Extracellular Matrix Assembly and Organization
- von Willebrand factor type A domain
- Trimeric coiled-coil oligomerisation domain of matrilin
- Complement Clr-like EGF-like
- Coagulation Factor Xa inhibitory site
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of MATN4 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 MATN4 as an antibody target. Whether an autoantibody or antibody against MATN4 could matter depends on whether native MATN4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MATN4 is annotated as secreted, so native MATN4 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 MATN4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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