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In biochemistry and medicine, glycoprotein IIb/IIIa ( GPIIb/IIIa, also known as integrin αIIbβ3) is an integrin complex found on platelets. It is a transmembrane receptor for fibrinogen [ 1] and von Willebrand factor, and aids platelet activation. The complex is formed via calcium-dependent association of gpIIb and gpIIIa, a required step in ...
Integrins couple the cell- extracellular matrix (ECM) outside a cell to the cytoskeleton (in particular, the microfilaments) inside the cell. Which ligand in the ECM the integrin can bind to is defined by which α and β subunits the integrin is made of. Among the ligands of integrins are fibronectin, vitronectin, collagen, and laminin.
The ITGB3 protein product is the integrin beta chain beta 3. Integrins are integral cell-surface proteins composed of an alpha chain and a beta chain. A given chain may combine with multiple partners resulting in different integrins. Integrin beta 3 is found along with the alpha IIb chain in platelets. Integrins are known to participate in cell ...
Fibronectin is a high- molecular weight (~500-~600 kDa) [ 5] glycoprotein of the extracellular matrix that binds to membrane -spanning receptor proteins called integrins. [ 6] Fibronectin also binds to other extracellular matrix proteins such as collagen, fibrin, and heparan sulfate proteoglycans (e.g. syndecans ).
Leukocyte adhesion deficiency ( LAD) is a rare autosomal recessive disorder characterized by immunodeficiency resulting in recurrent infections. [ 1] LAD is currently divided into three subtypes: LAD1, LAD2, and the recently described LAD3, also known as LAD-1/variant. In LAD3, the immune defects are supplemented by a Glanzmann thrombasthenia ...
Integrin beta 2. In molecular biology, CD18 ( Integrin beta chain-2) is an integrin beta chain protein that is encoded by the ITGB2 gene in humans. [ 5] Upon binding with one of a number of alpha chains, CD18 is capable of forming multiple heterodimers, which play significant roles in cellular adhesion and cell surface signaling, as well as ...
It also relies upon Microsoft-specific technologies such as ASP.NET, a decision that locks them out of OSX and Linux, both platforms on which Second Life runs. As a chat client, METAbolt doesn't ...
Alpha-v beta-3. αVβ3 is a type of integrin that is a receptor for vitronectin. [1] It consists of two components, integrin alpha V and integrin beta 3 ( CD 61), and is expressed by platelets. Furthermore, it is a receptor for phagocytosis on macrophages or dendritic cells. [2]