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Symbol ITGB1 contributors: mct - updated : 26-10-2015
HGNC name integrin, beta 1 (fibronectin receptor, beta polypeptide, antigen CD29 includes MDF2, MSK12)
HGNC id 6153
Location 10p11.22      Physical location : 33.189.247 - 33.247.293
Synonym name
  • cell differentiation antigen CD29 (130kD),identified by monoclonal antibodies K20, 4B4
  • integrin VLA-4 beta subunit
  • very late activation protein, beta polypeptide
  • CD29 antigen
  • Synonym symbol(s) CD29, FNR1, FNRB, GP2A, MDF2, MSK12, VLAB, GPIIA
    TYPE functioning gene
    STRUCTURE 58.05 kb     16 Exon(s)
    10 Kb 5' upstream gene genomic sequence study
    regulatory sequence Promoter
    Binding site
    text structure
  • putative HOXD1-binding sites in the promoter region of ITGB1
  • MAPPING cloned Y linked Y status confirmed
    Physical map
    FLJ10817 MRPS21P5 10p12.1 mitochondrial ribosomal protein S21 pseudogene 5 FLJ32798 LOC389945 10 similar to zinc finger protein 12 LOC340917 10p12.1 similar to laminin-binding protein WAC 10p12.1-p11.2 similar to laminin-binding protein NMA 10p12.3-p11.2 similar to laminin-binding protein MGC45541 10p12.1 hypothetical protein MGC45541 LOC256457 10p12.1 similar to 60S ribosomal protein L21 MGC33408 10p12.1 similar to lysozyme C-1 (1,4-beta-N-acylmuramidase C, EC LOC387647 10 hypothetical gene supported by BC014163 SVIL 10p11.2 supervillin bA192N10.2 10q11.1 cell division control protein CKS1 pseudogene KIAA1462 10p12.1 KIAA1462 FLJ10486 10p12.1 hypothetical protein FLJ10486 LOC389946 10 similar to G1/S-specific cyclin D3 MAP3K8 10p11.2 mitogen-activated protein kinase kinase kinase 8 LOC119180 10p11.23 lysozyme 2 LOC143110 10p11.23 similar to supervillin isoform 2; membrane-associated F-actin binding protein p205; archvillin LOC387648 10 similar to supervillin isoform 2; membrane-associated F-actin binding protein p205; archvillin LOC220929 10p11.23 hypothetical protein LOC220929 TCF8 10p11.2 transcription factor 8 (represses interleukin 2 expression) LOC387649 10 LOC387649 ARHGAP12 10pter-cen Rho GTPase activating protein 12 KIF5B 10p11.2 kinesin family member 5B LOC387650 10 hypothetical gene supported by BC000689; NM_021130; NR_000030 EPC1 10p11 enhancer of polycomb homolog 1, (Drosophila) FLJ32762 FLJ13031 ITGB1 10p11.2 integrin, beta 1 (fibronectin receptor, beta polypeptide, antigen CD29 includes MDF2, MSK12) LOC340933 10p11.23 similar to 60S ribosomal protein L7a (Surfeit locus protein 3) (PLA-X polypeptide) NRP1 10p12 neuropilin 1 PARD3 10p11.23 par-3 partitioning defective 3 homolog (C. elegans) CUL2 10p11.2-p11.1 cullin 2 CREM 10p12.1-p11.1 cAMP responsive element modulator C10orf9 10p11.22 chromosome 10 open reading frame 9 CX40.1 10p11.22 connexin40.1 FZD8 10p11.22 frizzled homolog 8 (Drosophila) LOC389947 10 similar to ribosomal protein L7 LOC387651 10 similar to Pre-B cell enhancing factor precursor LOC389948 10 similar to MAP kinase-interacting serine/threonine kinase 1; MAP kinase interacting kinase 1 NY-BR-1 10p11.21 breast cancer antigen NY-BR-1 LOC387652 10 similar to hypothetical protein MGC33214 LOC219752 10p11.21 similar to TACC1 protein LOC387653 10 similar to tousled-like kinase 2; serine/threonine kinase; tousled-like kinase ZNF248 10p11.2 zinc finger protein 248
    TRANSCRIPTS type messenger
    text with alternatively spliced isoforms
    identificationnb exonstypebpproduct
    ProteinkDaAAspecific expressionYearPubmed
    16 splicing 3879 88.4 798 - 2002 11779688
  • also called variant 1A
  • a 16 exons variant
  • an alternate 5'UTR due to the use of the alternate proximal promoter
  • containing exon 16b (shorter than 16a)
  • containing exon 19a (longer than 19b & 19c)
  • lacking exons 2, 17 & 18
  • encoding the same isoform as variant 1E
  • 16 splicing 3739 88.9 801 - 2002 11779688
  • also called variant 1D
  • a 16 exons variant
  • containing exon 16b (shorter than 16a)
  • containing exon 19b
  • lacking exons 1, 2 & 18
  • containing a unique 24 aa carboxy terminus
  • 16 splicing 3794 88.4 798 - 2002 11779688
  • also called variant 1E
  • a 16 exons variant
  • an alternate 5'UTR, due to the use of an alternate distal promoter
  • containing exon 16b (shorter than 16a)
  • containing exon 19c (shorter than 19a & 19b)
  • lacking exons 1, 17 & 18
  • encoding the same isoform as variant 1A
    Type ubiquitous
    constitutive of
       expressed in (based on citations)
    SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
    Cardiovascularvessel   highly
    Digestivemouth   moderately
    Endocrineparathyroid   moderately
    Hearing/Equilibriumearinnercochlea moderately
    Reproductivefemale systemuterus  moderately
     male systemprostate  lowly
    Respiratoryrespiratory tracttrachea  highly
    Visualeye   lowly
    SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
    Connective   highly
    Connectivebone  moderately
    Epithelialbarrier lining  lowly
    Muscularstriatumskeletal highly
    SystemCellPubmedSpeciesStageRna symbol
    Reproductiveepithelial cell
    cell lineage epidermal cells of the basal layer (stem, transit-amplifying, commited basal cells)
    cell lines Schwannomas
    at STAGE
    physiological period embryo
    Text umbilical cord and embryonic tissue at an higly level
  • a 20 amino acids signal peptide (2,2 kDa)
  • a globular domain
  • a stalk region with several EGF-like repeats each with eight cysteine residues
  • a single transmembrane (TM) and a short cytoplasmic tail
  • a von Willebrand factor (VWF) type A domain
  • mono polymer heteromer , dimer
    isoforms Precursor a 778 amino acids mature peptide (86,2 kDa)
    interspecies homolog to rattus Itgb1 (90.60 pc)
    homolog to murine Itgb1 (91.23 pc)
    intraspecies homolog to ITGB2
  • integrin beta chain family
  • CATEGORY adhesion , antigen , signaling , receptor
    SUBCELLULAR LOCALIZATION     plasma membrane
    text coexpressed in prostate epithelial cells with the cell cycle inhibitor p27/Kip1 (CDKN1B)
    basic FUNCTION
  • cell surface adhesion receptor mediating cell-adhesion to extra cellular matrix or to other cells, through hetero dimerization and connecting to the cytoskeleton and various signaling molecules within cells
  • inhibitor of cell proliferation
  • involved in migration and survival in primary oligodendrocytes
  • dispensable for the initiation of ERBB2 tumor induction, it plays a critical role in metastatic phase of tumor progression
  • essential for normal wound healing, where it acts, at least in part, through a TGFBeta-dependent mechanism
  • critical for the maintenance of antigen-specific CD4 T cells in the bone marrow but not long-term immunological memory
  • required both for fibroblast chemotaxis towards platelet-derived growth factor (PDGF) and growth factor-induced dorsal ruffling
  • SEMA7A on keratinocytes and ITGB1 on monocytes contribute to monocyte activation by keratinocytes within skin inflammation, such as psoriasis or wound
  • CELLULAR PROCESS cell communication
    text promoting a cell migratory phenotype in association with PRKCA
  • ITGB1-WNT7A-DCN pathway promotes proliferation and differentiation of neuroepithelial cells, and identify DCN as a novel neurogenic factor in the central nervous system
  • a component
  • dimerizing with ITGA1, ITGA2, ITGA3, ITGA4, ITGA5, ITGA6, ITGA7, ITGA8, ITGA9, ITGAV (see symbols)
  • complexing with PRKCA
    small molecule
  • targeting ERM proteins, MSN, RDX, EZR in association with PRKCA
  • associate with insulin-like growth factor type 1 receptor (IGF-IR) and regulate IGF-stimulated prostate cancer cell proliferation
  • interacting with RET (can activate ITGB1, and that RET-induced cell adhesion and migration require ITGB1)
  • ITGB1 is a transcriptional target of HOXD1 in endothelial cells
  • SERPINB5 physically associates with both PLAUR and ITGB1, thus producing a complex that regulates both cell motility and adhesion
  • TLN1 binds to ITGB1 cytoplasmic tails and regulates integrin activation
  • PML regulates endothelial cell migration, in part, by modulating expression of downstream genes, such as ITGB1
  • NELL1 binds to extracellular ITGB1 and induces cell focal adhesion
  • SOX10 and ITGB1 interaction in enteric neural crest cell migration
  • ARAP2 and ACAP1 had opposing effects on apparent ITGB1 internalization
  • RAB23 promotes squamous cell carcinoma cells migration and invasion by regulating ITGB1/TIAM1/RAC1 pathway
  • cell & other
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    tumoral     --other  
  • dysregulation of protein expression
  • coexpressed in human prostate epithelial cells with the cell cycle inhibitor p27/Kip1 (CDKN1B)
  • Susceptibility
    Variant & Polymorphism
    Candidate gene
    Therapy target