Cytotoxic T cells express CD 4 proteins True False The sequence of events involv

Question

Cytotoxic T cells express CD 4 proteins True False The sequence of events involved in the CAMP second messenger system: a) Ligand binding to receptor > activate G protein > activate phospholipase C > increase intracellualar CAMP > activate protein kinase A > phosphorylate proteins b) Ligand binding to receptor > activate G protein > activate phospholipase C > increase intracellular CAMP > activate protein kinase C > phosphorylate proteins c) Ligand binding to receptor > activate G protein > activate adenylate cyclase > increase intracellualar CAMP > activate protein kinase A > phosphorylate proteins. e) Ligand binding to receptor > activate G protein > activate phosphilipase C > increase intracellular CAMP > activate protein kinase A > phosphorylate proteins.

Explanation / Answer

1) Cytotoxic T-cells express CD 4 proteins,

False

Cytotoxic t-cells express CD 8+ receptors.

2) c) Ligand binding to receptor - activate G protein - activate adenylate cyclase - increase intracellular cAMP - activate protein kinase A - phosphorylate proteins

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