a) Using labelled diagrams briefly discuss the types of molecular mechanisms that occur during cell signalling through a G-protein-coupled receptor (GPCR)

b) What mechanisms are involved when these pathways are terminated?

Expert Solution

a.

b. If any of these pathways are terminated then alpha unit will not dissociate from beta and gamma subunit and response will not be done.

gladiator answered 1 year ago

An extracellular signal, such as Epinephrine, acting through a G-protein coupled receptor can have quite different...

An extracellular signal, such as Epinephrine, acting through a G-protein coupled receptor can have quite different effect depending on multiple factors. Indicate at least 3 factors that would be responsible of these various cellular responses from a single extracellular signal.

Compare and contrast signalling through a ligand-gated ion channel and a G proteincoupled receptor, using specific...

Compare and contrast signalling through a ligand-gated ion channel and a G proteincoupled receptor, using specific examples.

Explain the cell signaling pathway which involves membrane receptor (tyrosine kinase receptors and G protein-coupled receptors)....

Explain the cell signaling pathway which involves membrane receptor (tyrosine kinase receptors and G protein-coupled receptors). Use ONE (1) specific example to explain each reception pathway. The details of the summary should be concise and informative. The length of the summary for each type of membrane receptor should be less than 200 words.

Briefly describe two key differences that contrast signaling between receptor tyrosine kinases (RTKs) and G-protein coupled...

Briefly describe two key differences that contrast signaling between receptor tyrosine kinases (RTKs) and G-protein coupled receptors (GPCRs).

Question