True or False. The binding affinity between a peptide agonist and its specific G protein coupled receptor alone determines the sensitivity of a cell to the agonist peptide.
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True or False. The binding affinity between a peptide agonist and its specific G protein coupled receptor alone determines the sensitivity of a cell to the agonist peptide.
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- True or False. The binding affinity between a peptide agonist and its specific G protein coupled receptor involves certain types of chemical bonds. Explain your answer in detail.. ( please do not copy off of another source.. e.g chegg)= 20 nM. The rate of receptor-ligand complex formation with an A receptor-ligand complex has a dissociation constant of Ka added ligand concentration of 10 µM is 5 × 10³ s¯¹. What is the value of the reverse rate constant, k_₁ ? k_₁ = 8-1Dear Expert. Thank you for your advice, which is good and helpful. I note that your answer is "when 3 binding sites have been occupied the activity of these receptors is maximum." However, I also note that for a similar question (see below) on α7 nicotinic Acetylcholine Receptor (nAChR) also gives the same answer, ie. at least 3 agonist binding sites should be occupied. Another Question - "To maximize the activity of an α7 nAChR, how many agonist binding sites should be occupied." I understand that in α7 nAChR, binding to two sites is more effective and binding to three sites is most effective for activation. On the other hand, binding to four or five sites in the nAChRs of chromosome 7 speeds up desensitization more than activation. Therefore, to maximize the activity of an α7 nicotinic Acetylcholine Receptor (nAChR) is also "3 sites". Am I right?
- True or False : When the inhibitory Ga (Gia) protein is mutated and increases its intrinsic GTPase activity, adenylate cyclase becomes more active and Gia becomes more active.Signal Molecule- Somatostatin Receptor Name- Somatostatin receptor type 2 Draw the structure of the signal molecule (for peptides just sketch key motifs the best you can; i.e. alpha helices and beta sheets) discuss (100 words) the key features of the signaling cascade produced by reception of the signal molecule. along w/ 2-3 bullet points highlighting areas critical to signal amplification as well as basic mechanisms of signal termination. Cite one articleTrue or false. The different subunits that a muscatinic acetylcholine receptor is made of determines the properties of the receptor such as what ion it conducts. If false what is determines the properties ?
- Assighment. Create a diagram which illustrates the typical signalling mechanism of action of each of the four common classes of receptor (e.g. kinase-linked receptors etc.) and possible routes of communication (autocrine etc.). Your diagram should show the specific molecules involved, the mechanisms of signal transduction and indicate the different pathways that are activated. It should include a specific example of a receptor, ligand and signalling pathway for each general class. Include as wide a variety of ligands and modes of action as you can. For each of the examples describe the mechanism of action in the form below. DO NOT use any of the ligand-receptor combinations provide to you in the Learning Materials to date - research and create a diagram for a novel pathway instead!Question. Explain the signal transduction mechanism for slow ligand-gated ion channels.Vision. Recall that muscarinic ACh receptors are located on smooth muscle tissue. The iris is composed of smooth muscle and is responsible for dilation and constriction of the pupil. Tropicamide is a medication applied to the eye during an eye exam. If Tropicamide is an antagonist to the muscarinic receptors, what effect will this have on the eye? Why do you have difficulty seeing well while you wait for the effects of this medicine to wear off?
- SIGNALS AND TARGETS. Listed below are sample polypeptides/proteins with their signal molecule/peptide. Answer the questions that follow. If you are asked to give the amino acid sequence, provide the sequence using the three-letter names of the amino acids (eg. ser-ala-met). Catalase with H2N-...KERINGKERIANGEKSAMSKL-COOH What is the name of the specific receptor of this polypeptide? The receptor may also have what alternative function?SIGNALS AND TARGETS. Listed below are sample polypeptides/proteins with their signal molecule/peptide. Answer the questions that follow. If you are asked to give the amino acid sequence, provide the sequence using the three-letter names of the amino acids (eg. ser-ala-met). Protease with mannose-6-phosphate Where is the receptor for this protein located? Where is the final destination of this polypeptide? What happens to the receptor after protein transport?1J. Please help me in detail. for molecular Mechanism of ATP versus GTP selectivity of adenylate kinase