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Symbol CXADR contributors: mct - updated : 21-03-3012
HGNC name coxsackie virus and adenovirus receptor
HGNC id 2559
Location 21q21.1      Physical location : 18.885.329 - 18.939.264
Synonym name
  • coxsackievirus B-adenovirus receptor
  • 46 kD coxsackievirus and adenovirus receptor (CAR) protein
  • CVB3 binding protein
  • Synonym symbol(s) CAR, HCVADR, HCAR
    TYPE anonymous DNA segment
    SPECIAL FEATURE arranged in tandem
    STRUCTURE 80.67 kb     7 Exon(s)
    10 Kb 5' upstream gene genomic sequence study
    regulatory sequence Binding site   HRE
    motif repetitive sequence   ALU
    text structure
  • in addition to the negative E2 box-mediated regulation the minimal CXADR promoter is positively regulated through conserved ETS and CRE elements
  • MAPPING cloned Y linked N status provisional
    Physical map
    LOC391267 21 similar to SNAG1 LOC388812 21 similar to Ankyrin repeat domain protein 18A C21orf81 21q22.1 chromosome 21 open reading frame 81 LOC391268 21 similar to KIAA0685 protein LOC391269 21 similar to hypothetical protein DKFZp434A171 LOC375108 21q11.2 membrane-associated phospholipase A1 beta RBM11 21q11 RNA binding motif protein 11 ABCC13 21q11.1 ATP-binding cassette, sub-family C (CFTR/MRP), member 13 STCH 21q11.2 stress 70 protein chaperone, microsome-associated, 60kDa SAMSN1 21q11 SAM domain, SH3 domain and nuclear localisation signals, 1 LOC388813 21 LOC388813 POLR2CP 21q11.2 polymerase (RNA) II (DNA directed) polypeptide C, pseudogene NRIP1 21q11.2 nuclear receptor interacting protein 1 LOC388814 21 LOC388814 HCP42 21q11.2 cytochrome c, somatic pseudogene USP25 21q11.2 ubiquitin specific protease 25 VDAC2P 21q11.2 voltage-dependent anion channel 2 pseudogene LOC388815 21 hypothetical gene supported by AF486622 LOC391270 21 similar to RIKEN cDNA F730108M23 gene CXADR 21q11.2 coxsackie virus and adenovirus receptor BTG3 21q11.2-q21.1 BTG family, member 3 C21orf91 21q21.1 chromosome 21 open reading frame 91 CHODL 21q21 chondrolectin PRSS7 21q21 protease, serine, 7 (enterokinase) LOC388816 21 LOC388816 LOC388817 21 similar to peptidylprolyl isomerase A (cyclophilin A) SLC6A6P 21q21.1 solute carrier family 6, member 6 pseudogene C1QBPP 21q21.1 complement component 1, q subcomponent binding protein, pseudogene FDPSP 21q21.1 farnesyl diphosphate synthase pseudogene LOC391271 21 similar to Keratin, type I cytoskeletal 18 (Cytokeratin 18) (K18) (CK 18) RPS3AP1 21q21.1 ribosomal protein S3A pseudogene 1 PPIAP 21q21.1 peptidylprolyl isomerase A (cyclophilin A), pseudogene NCAM2 21q21 neural cell adhesion molecule 2
    TRANSCRIPTS type messenger
    text three exon-skipping splice variant giving rise to truncated proteins, may be impairing virus binding
    identificationnb exonstypebpproduct
    ProteinkDaAAspecific expressionYearPubmed
    7 - 2492 40 365 - 2010 20361046
  • CAR(Ex7)
  • transmembrane isoform that differ only at the C-terminus
  • 8 - 1669 - 352 low-level expression of the CAR(Ex8) isoform in well-differentiated airway epithelia 2010 20361046
  • CAR(Ex8)
  • transmembrane isoform that differ only at the C-terminus
  • localizes to the apical membrane of epithelia where it augments adenovirus infection, and this localization may be responsible for initiation of respiratory adenoviral infections and appears to be regulated by interactions with PDZ-domain containing proteins
  • 5 splicing 5482 - 252 not expressed in normal cervical tissue but in most cervical carcinomas 2011 21431326
  • variant CAR4/6 that lacked exon 5 but retained exon 6 encoding the transmembrane domain
  • localized in the cell membrane
  • possible role in cancer progression
  • 4 - 5326
    3 - 5121 - 89 - 2003 12468544
       expressed in (based on citations)
    SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
    Lymphoid/Immunelymphatic vessel   highly Homo sapiens
    cell lineage
    cell lines
    at STAGE
    physiological period fetal
  • predominantly expressed in the developing brain and heart
  • a globular ectodomain (two immunoglobulin domains)
  • a stalk (six residues)
  • a single transmembrane helix
  • and a cytoplasmic domain
  • conjugated GlycoP
    isoforms Precursor
  • Ig-like C2-type family
  • CATEGORY receptor
        plasma membrane
    text type I transmembrane glycoprotein
    basic FUNCTION
  • key adenoviral receptor mediating virus attachment to the cell-surface
  • functioning as a virus receptor
  • may affect cell migration through its interaction with microtubules
  • has a function in the propagation of excitation from the atrium to the ventricle that could explain the association of arrhythmia and Coxsackievirus infection of the heart
  • can stabilizes lymphatic endothelial cells/lymphatic endothelial cells interactions in the skin and may contribute to lymphatic vessel integrity
  • adhesion molecule found at the intercalated disc of cardiomyocytes in association with other adherens and tight junction proteins
  • primary cellular receptor for group B coxsackieviruses and most adenovirus serotypes and plays a crucial role in adenoviral gene therapy
  • CXADR and AMICA1 are cell signaling receptors of the immune system with implications for asthma, cancer, and chronic nonhealing wounds
  • AMICA1 and CXADR constitute an important cell-signaling complex of the immune system
  • viral receptor for Group B coxsackieviruses (CVBs) and adenoviruses
  • CXADR-induced stress-activated MAPK signaling may contribute to the development of cardiac inflammation unrelated to viral infection per se
  • represses CXADR expression in both PANC-1 (pancreatic) and MDA-MB-231 (breast) cancer cells (Pubmed 21791114)
    a component
  • CXADR and LNX1 are part of a larger protein complex that might have important functions at discrete subcellular localizations in the cell
    small molecule
  • integrins alpha V/beta 3, alpha V/beta 5 mediating virus entry into the cell
  • able to bind LNX1 (efficient binding to LNX1 required not only the consensus PDZ domain binding motif in the C terminus of CXADR but also upstream sequences)
  • is a partner in a protein complex organized at specific subcellular sites by LNX2
  • tubulin is an interaction partner for the cytoplasmic domain of CXADR
  • associated with CAV2 vesicles that also transported cargo as functionally distinct as tetanus toxin, neurotrophins, and their receptors
  • interaction of CXADR and alpha-catenin mediates the impact of CXADR on cell proliferation, migration, invasion, and morphology
  • CXADR is a functional ligand for AMICA1 in the epidermis
  • cell & other
    inhibited by TGFbeta, that may inhibit CXADR expression by regulating factor(s) that cooperate with ZEB1 to repress the CXADR promoter, rather than by regulating ZEB1 expression levels
    repressed by ZEB1 (represses CXADR expression in both PANC-1 (pancreatic) and MDA-MB-231 (breast) cancer cells)
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    can affect cell adhesion which in the context of carcinogenesis may influence both invasion and metastatic spread
    constitutional     --over  
    increased CXADR expression can induce a cardiomyopathy
    Variant & Polymorphism
    Candidate gene
    Therapy target