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  3. ITGA6

ITGA6 (Integrin subunit alpha 6)

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Summary of ITGA6

The gene codes for a protein, integrin subunit alpha 6. It is processed into chains that comprise of the alpha 6 beta 4 integrin whcih may promote tumorigenesis [R].

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The Function of ITGA6

Integrin alpha-6/beta-1 is a receptor for laminin on platelets. Integrin alpha-6/beta-4 is a receptor for laminin in epithelial cells and it plays a critical structural role in the hemidesmosome (By similarity). ITGA6:ITGB4 binds to NRG1 (via EGF domain) and this binding is essential for NRG1-ERBB signaling (PubMed:20682778). ITGA6:ITGB4 binds to IGF1 and this binding is essential for IGF1 signaling (PubMed:22351760).

Protein names

Recommended name:

Integrin alpha-6

Short name:

VLA-6

Alternative name(s):

CD49 antigen-like family member F
CD antigen CD49f
Alpha6p

ITGA6 SNPs

    To see your genotype, you should be logged in and have a file with your genotype uploaded.

  1. RS1002979 (ITGA6) ??
  2. RS11895564 (ITGA6) ??
  3. RS12621278 (ITGA6) ??
  4. RS13421350 (ITGA6) ??

Top Gene-Substance Interactions

ITGA6 Interacts with These Diseases

Disease Score

Substances That Increase ITGA6

Substances Interaction Organism Category

Substances That Decrease ITGA6

Substances Interaction Organism Category

Advanced Summary

     epidermolysis bullosa with pyloric atresia At least five mutations in the ITGA6 gene have been found to cause epidermolysis bullosa with pyloric atresia (EB-PA). In addition to skin blistering, people with EB-PA are born with a life-threatening obstruction of the digestive tract called pyloric atresia. Mutations in the ITGA6 gene account for about 5 percent of all cases of EB-PA. The ITGA6 gene mutations responsible for EB-PA lead to a loss of functional α6β4 integrin. These mutations alter the normal structure and function of the α6 integrin subunit or prevent cells from producing enough of this subunit. The resulting shortage of functional α6β4 integrin causes cells in the epidermis to be fragile and easily damaged. Friction or other minor trauma can cause the skin layers to separate, leading to the widespread formation of blisters. It is less clear how mutations in the ITGA6 gene are related to pyloric atresia. prostate cancer Genetics Home Reference provides information about prostate cancer. cancers Researchers believe that both α6β1 integrin and α6β4 integrin may play critical roles in the progression of cancerous tumors called carcinomas. These cancers arise in epithelial cells and can affect many tissues and organs, including the breast, lung, liver, prostate, and skin. Changes in the location and activity of α6β1 integrin and α6β4 integrin within cancer cells are associated with the progression of carcinomas. The integrin proteins activate key signaling molecules, which trigger cancer cells to migrate through the body and invade other tissues. These signals also make cancer cells more resistant to self-destruction (apoptosis). Recent studies suggest that, in addition to their roles in the progression of existing carcinomas, α6β1 integrin and α6β4 integrin may be involved in the initial formation of these tumors.

     The ITGA6 gene provides instructions for making one part (the α6 subunit) of two proteins known as α6β4 integrin and α6β1 integrin. Integrins are a group of proteins that regulate the attachment of cells to one another (cell-cell adhesion) and to the surrounding network of proteins and other molecules (cell-matrix adhesion). Integrins also transmit chemical signals that regulate cell growth and the activity of certain genes. The α6β4 integrin protein is found primarily in epithelial cells, which are cells that line the surfaces and cavities of the body. This protein plays a particularly important role in strengthening and stabilizing the skin. It is a component of hemidesmosomes, which are microscopic structures that anchor the outer layer of the skin (the epidermis) to underlying layers. As part of a complex network of proteins in hemidesmosomes, α6β4 integrin helps to hold the layers of skin together. The other integrin made with the α6 subunit, α6β1 integrin, functions during the formation of organs and tissues before birth. The α6β1 integrin protein has not been as well studied as α6β4 integrin.

Conditions with Increased Gene Activity

Condition Change (log2fold) Comparison Species Experimental variables Experiment name

Conditions with Decreased Gene Activity

Condition Change (log2fold) Comparison Species Experimental variables Experiment name

Technical

The following transcription factors affect gene expression:

  • AP-1
  • c-Jun
  • c-Myc
  • IRF-1

Tissue specificity:

Integrin alpha-6/beta-4 is predominantly expressed by epithelia. Isoforms containing segment X1 are ubiquitously expressed. Isoforms containing segment X1X2 are expressed in heart, kidney, placenta, colon, duodenum, myoblasts and myotubes, and in a limited number of cell lines; they are always coexpressed with the ubiquitous isoform containing segment X1. In some tissues (e.g. Salivary gland), isoforms containing cytoplasmic segment A and isoforms containing segment B are detected while in others, only isoforms containing one cytoplasmic segment are found (segment A in epidermis and segment B in kidney).

Gene Pathways:

  • Pathways in cancer
  • Regulation of actin cytoskeleton
  • Hemostasis
  • Arrhythmogenic right ventricular cardiomyopathy (ARVC)
  • Cell-Cell communication
  • Cell adhesion molecules (CAMs)
  • Extracellular matrix organization
  • Small cell lung cancer
  • Toxoplasmosis
  • Dilated cardiomyopathy
  • Hematopoietic cell lineage
  • Hypertrophic cardiomyopathy (HCM)

Molecular Function:

  • Cadherin Binding Involved In Cell-Cell Adhesion
  • Metal Ion Binding

Biological Processes:

  • Amelogenesis
  • Brown Fat Cell Differentiation
  • Cell Adhesion Mediated By Integrin
  • Cell-Matrix Adhesion
  • Cell-Substrate Adhesion
  • Cell-Substrate Junction Assembly
  • Cellular Response To Extracellular Stimulus
  • Cellular Response To Organic Cyclic Compound
  • Digestive Tract Development
  • Ectodermal Cell Differentiation
  • Extracellular Matrix Organization
  • Filopodium Assembly
  • Hemidesmosome Assembly
  • Integrin-Mediated Signaling Pathway
  • Leukocyte Migration
  • Nail Development
  • Negative Regulation Of Extrinsic Apoptotic Signaling Pathway
  • Positive Regulation Of Apoptotic Process
  • Positive Regulation Of Cell-Cell Adhesion
  • Positive Regulation Of Cell Migration
  • Positive Regulation Of Cell-Substrate Adhesion
  • Positive Regulation Of Gtpase Activity
  • Positive Regulation Of Phosphorylation
  • Positive Regulation Of Transcription From Rna Polymerase Ii Promoter
  • Renal System Development
  • Single Organismal Cell-Cell Adhesion
  • Skin Development
*synonyms

Synonyms/Aliases/Alternative Names of the Gene:

hypothetical protein| A306_07554| AS27_06869| AS28_03365| CB1_001207004| CD49 antigen-like family member F| Cd49f| D623_10034966| GW7_00035| H920_16199| I79_001272| integrin alpha 6| integrin alpha-6| integrin, alpha 6| integrin alpha6B| Integrin alpha-6 precursor isoform 1-like protein| integrin alpha 6 subunit| integrin alpha chain, alpha 6| ITGA6B| M91_01845| M959_07182| MDA_GLEAN10026260| N300_04552| N302_06761| N303_07227| N305_06617| N306_04054| N307_07571| N308_13180| N309_11709| N310_13260| N311_10382| N312_03571| N320_02218| N321_04867| N327_08260| N328_04035| N329_03772| N330_08027| N331_12636| N333_06676| N334_11643| N335_00629| N339_10741| N340_04928| N341_09406| PAL_GLEAN10025966| PANDA_017827| TREES_T100016599| UY3_07763| VLA-6| Y1Q_031839| Y956_02265| Z169_02850| itga6

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