RESEARCH: G-PROTEINS
FOLDING PROJECT #17210 PROFILE

G-proteins control important processes like vision and muscle movement. They switch between active and inactive states depending on a molecule they bind called GTP or GDP. The project explores how G-proteins get rid of GDP, which is a key step in activating them. Problems with this process can cause diseases.

G-proteins play central role in various signalling pathways involved in vision, taste, oflaction, muscle contraction and neurotransmission.

G-proteins regulate these signalling pathways by switching between 'active' and 'inactive' states, dictated by the type nucleotide bound to their active site.

When bound to gaunosine dinucleotide (GDP), G-proteins adopt inactive state.

Dissociation of GDP and subsequent binding of gaunosine trinucleotide (GTP) activates G-proteins, which in turn activate downstream signalling pathways.

GDP dissociation is the rate limiting step in activation of G-proteins and misregulation of this process can often lead to disease conditions.

in this project, we are studying the mechanism of GDP dissociation process.

G-proteins

Proteins that bind guanine nucleotides to regulate signal transduction.

G-proteins are crucial molecules that relay signals within cells. They switch between active and inactive states depending on whether they're bound to GDP or GTP. This switching allows them to control various cellular processes, including vision, taste, muscle contraction, and nerve signaling. Problems with G-protein function can contribute to diseases.

GDP

Guanosine diphosphate

GDP is a molecule that acts as an energy source and signal in cells. It binds to G-proteins, keeping them inactive. When GDP detaches, it allows the G-protein to become active.

GTP

Guanosine triphosphate

GTP is a molecule that provides energy for various cellular processes, including activating G-proteins. When GTP binds to a G-protein, it triggers the protein to become active and initiate signal transduction.

Signal Transduction

The process of transmitting signals within and between cells.

Signal transduction is how cells communicate. A signal molecule binds to a receptor on the cell surface, triggering a cascade of events inside the cell that ultimately lead to a specific response. This allows cells to respond to their environment and coordinate activities.

Disease Conditions

Conditions that disrupt normal physiological function.

Disease conditions are impairments in the body's normal functions. They can result from various factors like genetic mutations, infections, or lifestyle choices. Understanding disease mechanisms is crucial for developing treatments and improving patient care.