G protein can refer to two distinct families of proteins.

Further effect depends on the type of G protein.

Different types of heterotrimeric G proteins share a common mechanism.

Some evidence suggests that receptors and G proteins are actually pre-coupled.

These G proteins are used in the signal transduction of taste and smell.

In contrast, the G protein differs considerably between the two subtypes.

G protein occurs in the taste recognition for bitter.

Its activity is mediated by G proteins which activate several different second messenger systems.

The clathrin coat is thought to assemble in response to regulatory G protein.

Small, membrane-bound G proteins are often modified this way.

The population size has remained constant over the last 70 years and the G protein appears to be the main site of diversifying selection.

First, it prevents the interaction between the G protein and the activated receptor.

Receptor-activated G proteins are bound to the outside surface of the cell membrane.

Gustducin is a G protein associated with basic taste and the gustatory system.

In 1992, his laboratory discovered gustducin, a taste cell expressed G protein.

However, G proteins have been difficult to link to the function Smoothened.

Several G protein alpha subunits have been identified in taste cells, and are potential candidates for this role.

Dock5 is predicted to activate the small G protein Rac.

The receptor can now either activate another G protein or switch back to its inactive state.

Many of these G proteins are involved in cell cycling, and as such are known proto-oncogenes.

G proteins function as binary signaling switches with "on" and "off" states.

It is inhibited by the G protein beta and gamma subunit complex.

In mammals, olfactory receptors have been shown to signal via G protein.

GAP's role in this function is to turn the G protein's activity off.

GAPs, then, are critical in the regulation of G proteins.

Therefore, a G-protein can be switched on and off.

His work impacts broadly on understanding G-protein signaling at a quantitative level.

Transducin is a very important G-protein in vertebrate phototransduction.

Before, rhodopsin was the only G-protein coupled receptor where the structure had been determined at high resolution.

This time course of activation is consistent with that of other G-protein coupled receptors.

Second, the activated G-protein produces a primary effector.

Most of the serotonin receptors on the surface of the cell are coupled to a G-protein inside it.

The G-protein is known as the "transducer."

The G protein-coupled receptors that couple to this kind of G-protein include:

It is also known as very large G-protein coupled receptor 1 because it is 6300 residues long.

The recycling process can be regulated by the Retinol G-protein Receptor system.

The glucagon receptor family is a group of closely related G-protein coupled receptors which include:

G-protein is a trimeric protein.

This gene product is an integral membrane protein that is a G-protein coupled, 7-transmembrane receptor.

Active G-protein open up calcium channels to let calcium ions enter the plasma membrane.

Thus he deduced that the G-protein was a transducer that accepted glucagon molecules and affected the cell.

Each G protein-coupled receptor couples to a specific G-protein which leads to activation of a special effector system.

This change activates the G-protein, gustducin, which in turn activates adenylate cyclase.

AVPR1b is a g-protein coupled pituitary receptor that has only recently been characterized because of its rarity.

Seven transmembrane G-protein coupled receptors (which represent about 5% of the genes in humans) mostly do not have an amino-terminal signal sequence.

GPR113 is a gene that encodes the Probable G-protein coupled receptor 113 protein.

Histamine acts as an excitatory neurotransmitter by binding G-protein coupled receptors in neurons of the hypothalamus.

PTH was one of the first hormones to be shown to use the G-protein, adenylyl cyclase second messenger system.

This class of opsins are not coupled to a G-protein, and thus serve to traffic retinal around in response to light, rather than directly in signal-induction.

The latrophilin receptors are a group of related G-protein coupled receptors from the class B secretin family.