TNXB
Tenascin-X
Also known as: HXBL, TENX_HUMAN, TN-X, TNX, TNXB1, TNXB2, TNXBS, XB, XBS
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P22105
- Gene
- TNXB
- Ensembl
- ENSG00000168477
- Chromosome
- 6
- Canonical length
- 4244 aa
- Protein class
- Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins, Predicted secreted proteins
- Subcellular location
- Vesicles
- Secretome location
- Secreted to extracellular matrix
- Quaternary structure
- Homotrimer
OverviewNCBI Gene
This gene encodes a member of the tenascin family of extracellular matrix glycoproteins. The tenascins have anti-adhesive effects, as opposed to fibronectin which is adhesive. This protein is thought to function in matrix maturation during wound healing, and its deficiency has been associated with the connective tissue disorder Ehlers-Danlos syndrome. This gene localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. It is one of four genes in this cluster which have been duplicated. The duplicated copy of this gene is incomplete and is a pseudogene which is transcribed but does not encode a protein. The structure of this gene is unusual in that it overlaps the CREBL1 and CYP21A2 genes at its 5' and 3' ends, respectively. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
4244 residues, UniProt reviewed canonical sequence.
>P22105|TNXB
1 MMPAQYALTS SLVLLVLLST ARAGPFSSRS NVTLPAPRPP PQPGGHTVGA GVGSPSSQLY
61 EHTVEGGEKQ VVFTHRINLP PSTGCGCPPG TEPPVLASEV QALRVRLEIL EELVKGLKEQ
121 CTGGCCPASA QAGTGQTDVR TLCSLHGVFD LSRCTCSCEP GWGGPTCSDP TDAEIPPSSP
181 PSASGSCPDD CNDQGRCVRG RCVCFPGYTG PSCGWPSCPG DCQGRGRCVQ GVCVCRAGFS
241 GPDCSQRSCP RGCSQRGRCE GGRCVCDPGY TGDDCGMRSC PRGCSQRGRC ENGRCVCNPG
301 YTGEDCGVRS CPRGCSQRGR CKDGRCVCDP GYTGEDCGTR SCPWDCGEGG RCVDGRCVCW
361 PGYTGEDCST RTCPRDCRGR GRCEDGECIC DTGYSGDDCG VRSCPGDCNQ RGRCEDGRCV
421 CWPGYTGTDC GSRACPRDCR GRGRCENGVC VCNAGYSGED CGVRSCPGDC RGRGRCESGR
481 CMCWPGYTGR DCGTRACPGD CRGRGRCVDG RCVCNPGFTG EDCGSRRCPG DCRGHGLCED
541 GVCVCDAGYS GEDCSTRSCP GGCRGRGQCL DGRCVCEDGY SGEDCGVRQC PNDCSQHGVC
601 QDGVCICWEG YVSEDCSIRT CPSNCHGRGR CEEGRCLCDP GYTGPTCATR MCPADCRGRG
661 RCVQGVCLCH VGYGGEDCGQ EEPPASACPG GCGPRELCRA GQCVCVEGFR GPDCAIQTCP
721 GDCRGRGECH DGSCVCKDGY AGEDCGEEVP TIEGMRMHLL EETTVRTEWT PAPGPVDAYE
781 IQFIPTTEGA SPPFTARVPS SASAYDQRGL APGQEYQVTV RALRGTSWGL PASKTITTMI
841 DGPQDLRVVA VTPTTLELGW LRPQAEVDRF VVSYVSAGNQ RVRLEVPPEA DGTLLTDLMP
901 GVEYVVTVTA ERGRAVSYPA SVRANTGSSP LGLLGTTDEP PPSGPSTTQG AQAPLLQQRP
961 QELGELRVLG RDETGRLRVV WTAQPDTFAY FQLRMRVPEG PGAHEEVLPG DVRQALVPPP
1021 PPGTPYELSL HGVPPGGKPS DPIIYQGIMD KDEEKPGKSS GPPRLGELTV TDRTSDSLLL
1081 RWTVPEGEFD SFVIQYKDRD GQPQVVPVEG PQRSAVITSL DPGRKYKFVL YGFVGKKRHG
1141 PLVAEAKILP QSDPSPGTPP HLGNLWVTDP TPDSLHLSWT VPEGQFDTFM VQYRDRDGRP
1201 QVVPVEGPER SFVVSSLDPD HKYRFTLFGI ANKKRYGPLT ADGTTAPERK EEPPRPEFLE
1261 QPLLGELTVT GVTPDSLRLS WTVAQGPFDS FMVQYKDAQG QPQAVPVAGD ENEVTVPGLD
1321 PDRKYKMNLY GLRGRQRVGP ESVVAKTAPQ EDVDETPSPT ELGTEAPESP EEPLLGELTV
1381 TGSSPDSLSL FWTVPQGSFD SFTVQYKDRD GRPRAVRVGG KESEVTVGGL EPGHKYKMHL
1441 YGLHEGQRVG PVSAVGVTAP QQEETPPATE SPLEPRLGEL TVTDVTPNSV GLSWTVPEGQ
1501 FDSFIVQYKD KDGQPQVVPV AADQREVTVY NLEPERKYKM NMYGLHDGQR MGPLSVVIVT
1561 APLPPAPATE ASKPPLEPRL GELTVTDITP DSVGLSWTVP EGEFDSFVVQ YKDRDGQPQV
1621 VPVAADQREV TIPDLEPSRK YKFLLFGIQD GKRRSPVSVE AKTVARGDAS PGAPPRLGEL
1681 WVTDPTPDSL RLSWTVPEGQ FDSFVVQFKD KDGPQVVPVE GHERSVTVTP LDAGRKYRFL
1741 LYGLLGKKRH GPLTADGTTE ARSAMDDTGT KRPPKPRLGE ELQVTTVTQN SVGLSWTVPE
1801 GQFDSFVVQY KDRDGQPQVV PVEGSLREVS VPGLDPAHRY KLLLYGLHHG KRVGPISAVA
1861 ITAGREETET ETTAPTPPAP EPHLGELTVE EATSHTLHLS WMVTEGEFDS FEIQYTDRDG
1921 QLQMVRIGGD RNDITLSGLE SDHRYLVTLY GFSDGKHVGP VHVEALTVPE EEKPSEPPTA
1981 TPEPPIKPRL GELTVTDATP DSLSLSWTVP EGQFDHFLVQ YRNGDGQPKA VRVPGHEEGV
2041 TISGLEPDHK YKMNLYGFHG GQRMGPVSVV GVTAAEEETP SPTEPSMEAP EPAEEPLLGE
2101 LTVTGSSPDS LSLSWTVPQG RFDSFTVQYK DRDGRPQVVR VGGEESEVTV GGLEPGRKYK
2161 MHLYGLHEGR RVGPVSAVGV TAPEEESPDA PLAKLRLGQM TVRDITSDSL SLSWTVPEGQ
2221 FDHFLVQFKN GDGQPKAVRV PGHEDGVTIS GLEPDHKYKM NLYGFHGGQR VGPVSAVGLT
2281 APGKDEEMAP ASTEPPTPEP PIKPRLEELT VTDATPDSLS LSWTVPEGQF DHFLVQYKNG
2341 DGQPKATRVP GHEDRVTISG LEPDNKYKMN LYGFHGGQRV GPVSAIGVTA AEEETPSPTE
2401 PSMEAPEPPE EPLLGELTVT GSSPDSLSLS WTVPQGRFDS FTVQYKDRDG RPQVVRVGGE
2461 ESEVTVGGLE PGRKYKMHLY GLHEGRRVGP VSTVGVTAPQ EDVDETPSPT EPGTEAPGPP
2521 EEPLLGELTV TGSSPDSLSL SWTVPQGRFD SFTVQYKDRD GRPQAVRVGG QESKVTVRGL
2581 EPGRKYKMHL YGLHEGRRLG PVSAVGVTED EAETTQAVPT MTPEPPIKPR LGELTMTDAT
2641 PDSLSLSWTV PEGQFDHFLV QYRNGDGQPK AVRVPGHEDG VTISGLEPDH KYKMNLYGFH
2701 GGQRVGPISV IGVTAAEEET PSPTELSTEA PEPPEEPLLG ELTVTGSSPD SLSLSWTIPQ
2761 GHFDSFTVQY KDRDGRPQVM RVRGEESEVT VGGLEPGRKY KMHLYGLHEG RRVGPVSTVG
2821 VTAPEDEAET TQAVPTTTPE PPNKPRLGEL TVTDATPDSL SLSWMVPEGQ FDHFLVQYRN
2881 GDGQPKVVRV PGHEDGVTIS GLEPDHKYKM NLYGFHGGQR VGPISVIGVT AAEEETPAPT
2941 EPSTEAPEPP EEPLLGELTV TGSSPDSLSL SWTIPQGRFD SFTVQYKDRD GRPQVVRVRG
3001 EESEVTVGGL EPGCKYKMHL YGLHEGQRVG PVSAVGVTAP KDEAETTQAV PTMTPEPPIK
3061 PRLGELTVTD ATPDSLSLSW MVPEGQFDHF LVQYRNGDGQ PKAVRVPGHE DGVTISGLEP
3121 DHKYKMNLYG FHGGQRVGPV SAIGVTEEET PSPTEPSTEA PEAPEEPLLG ELTVTGSSPD
3181 SLSLSWTVPQ GRFDSFTVQY KDRDGQPQVV RVRGEESEVT VGGLEPGRKY KMHLYGLHEG
3241 QRVGPVSTVG ITAPLPTPLP VEPRLGELAV AAVTSDSVGL SWTVAQGPFD SFLVQYRDAQ
3301 GQPQAVPVSG DLRAVAVSGL DPARKYKFLL FGLQNGKRHG PVPVEARTAP DTKPSPRLGE
3361 LTVTDATPDS VGLSWTVPEG EFDSFVVQYK DKDGRLQVVP VAANQREVTV QGLEPSRKYR
3421 FLLYGLSGRK RLGPISADST TAPLEKELPP HLGELTVAEE TSSSLRLSWT VAQGPFDSFV
3481 VQYRDTDGQP RAVPVAADQR TVTVEDLEPG KKYKFLLYGL LGGKRLGPVS ALGMTAPEED
3541 TPAPELAPEA PEPPEEPRLG VLTVTDTTPD SMRLSWSVAQ GPFDSFVVQY EDTNGQPQAL
3601 LVDGDQSKIL ISGLEPSTPY RFLLYGLHEG KRLGPLSAEG TTGLAPAGQT SEESRPRLSQ
3661 LSVTDVTTSS LRLNWEAPPG AFDSFLLRFG VPSPSTLEPH PRPLLQRELM VPGTRHSAVL
3721 RDLRSGTLYS LTLYGLRGPH KADSIQGTAR TLSPVLESPR DLQFSEIRET SAKVNWMPPP
3781 SRADSFKVSY QLADGGEPQS VQVDGQARTQ KLQGLIPGAR YEVTVVSVRG FEESEPLTGF
3841 LTTVPDGPTQ LRALNLTEGF AVLHWKPPQN PVDTYDVQVT APGAPPLQAE TPGSAVDYPL
3901 HDLVLHTNYT ATVRGLRGPN LTSPASITFT TGLEAPRDLE AKEVTPRTAL LTWTEPPVRP
3961 AGYLLSFHTP GGQNQEILLP GGITSHQLLG LFPSTSYNAR LQAMWGQSLL PPVSTSFTTG
4021 GLRIPFPRDC GEEMQNGAGA SRTSTIFLNG NRERPLNVFC DMETDGGGWL VFQRRMDGQT
4081 DFWRDWEDYA HGFGNISGEF WLGNEALHSL TQAGDYSMRV DLRAGDEAVF AQYDSFHVDS
4141 AAEYYRLHLE GYHGTAGDSM SYHSGSVFSA RDRDPNSLLI SCAVSYRGAW WYRNCHYANL
4201 NGLYGSTVDH QGVSWYHWKG FEFSVPFTEM KLRPRNFRSP AGGGLocalizationUniProt · AlphaFold · HPA
Whether an antibody against TNXB 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
- Highest tissue expression
- 253 nTPM
Expression across tissuesHPA
Tissue
- adrenal gland: 253 nTPM
- heart muscle: 71 nTPM
- adipose tissue: 64 nTPM
- ovary: 63 nTPM
- endometrium: 56 nTPM
- lung: 48 nTPM
Single-cell type
- lymphatic endothelial cells: 19 nCPM
- epicardial cells: 18 nCPM
- fibroblasts: 16 nCPM
- fibro-adipogenic progenitors: 12 nCPM
- ependymal cells: 7 nCPM
- vascular endothelial cells: 6.6 nCPM
Immune cell
- total PBMC: 0.1 nTPM
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
Brain region
- cerebellum: 14 nTPM
- choroid plexus: 13 nTPM
- thalamus: 12 nTPM
- basal ganglia: 11 nTPM
- spinal cord: 9.7 nTPM
- cerebral cortex: 9.5 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about TNXB.
Disease | AllUniProt
Conditions TNXB is implicated in, by any mechanism.
- Ehlers-Danlos syndrome, classic-like, 1 (EDSCLL1) MIM:606408
- Vesicoureteral reflux 8 (VUR8) MIM:615963
Disease | GeneticClinVar
149 pathogenic / likely-pathogenic of 3,744 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Ehlers-Danlos syndrome due to tenascin-X deficiency
- Vesicoureteral reflux 8
- Cardiovascular phenotype
- TNXB-related disorder
- Ehlers-Danlos syndrome
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)
- 0.6
- gnomAD pLI
- 0.02
- gnomAD missense Z
- 0.04
- DepMap mean gene effect
- -0.08
- 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
- actin cytoskeleton organization
- cell adhesion
- cell-cell adhesion
- cell-matrix adhesion
- collagen fibril organization
- collagen metabolic process
- elastic fiber assembly
- fatty acid metabolic process
- neuron projection development
- positive regulation of cell population proliferation
- positive regulation of collagen fibril organization
- positive regulation of epithelial to mesenchymal transition
- positive regulation of vascular endothelial growth factor signaling pathway
- regulation of cell adhesion
- regulation of cell differentiation
- regulation of cell migration
- regulation of JNK cascade
- triglyceride metabolic process
- positive regulation of cell fate determination
Molecular functions
- collagen binding
- collagen fibril binding
- extracellular matrix structural constituent
- heparin binding
- integrin binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- EGF-like domain
- Fibrinogen, alpha/beta/gamma chain, C-terminal globular domain
- Fibronectin type III
- Immunoglobulin-like fold
- Fibrinogen, alpha/beta/gamma chain, C-terminal globular, subdomain 1
- Fibrinogen, conserved site
- Fibrinogen-like, C-terminal
- Fibronectin type III superfamily
- Tenascin, EGF-like domain
- Extracellular Matrix Regulatory Proteins
- Fibronectin type III domain
- Fibrinogen beta and gamma chains, C-terminal globular domain
- Tenascin EGF domain
- Teneurin-like EGF domain
- Teneurin EGF domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of TNXB in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
- III
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads TNXB as an antibody target. Whether an autoantibody or antibody against TNXB could matter depends on whether native TNXB is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
TNXB is annotated as secreted, so native TNXB 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 TNXB as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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