GPIIIB Meaning and
Definition
-
GPIIIb is a term used in the field of biochemistry and refers to the glycoprotein IIIb, also known as the integrin alphaIIb chain. Integrins are a family of transmembrane receptors that play a crucial role in cell-to-cell adhesion and interaction with the extracellular matrix. GPIIIb is specifically associated with platelets, which are small, irregular-shaped cells found in the blood that are essential for clotting, wound healing, and preventing excessive bleeding.
The GPIIIb protein exists as a heterodimer along with the glycoprotein IIIa (GPIIIa) chain, forming a complex known as integrin alphaIIb beta3. This complex is mainly expressed on the surface of activated platelets and plays a vital role in platelet aggregation, the process by which platelets clump together at the site of injury to form blood clots.
The GPIIIb subunit acts as a receptor for fibrinogen, von Willebrand factor, and fibronectin, which are all involved in platelet activation and adhesion to damaged blood vessels. Upon activation, the GPIIIb subunits undergo a conformational change that exposes their fibrinogen-binding sites, leading to platelet aggregation and clot formation.
Abnormalities in the GPIIIb protein can lead to various platelet dysfunctions and disorders, such as Glanzmann's thrombasthenia, a rare inherited bleeding disorder characterized by impaired platelet aggregation. Understanding the structure and function of GPIIIb is essential for investigating the mechanisms of platelet activation and developing potential therapeutic interventions for platelet-related disorders.
Common Misspellings for GPIIIB
- GPmIIb
- GPhIIb
- GPIyIb
- GPIaIb
- GPImIb
- GPIhIb
- GPIIyb
- GPIIab
- GPIImb
- GPIIhb
- GPIIIr
- GPIIIj
- GPIIIf
- GPIIIc
- gpieiib
- gpi iib
- gpii ib
- gpiii b
