Which of the following steps does not occur after acetylcholine binds to the muscarinic acetylcholine receptor in heart muscle cells?

TLS Online TPP Program

#Question id: 33392

#Unit 1. Molecules and their Interaction Relevant to Biology

For γ-Turns, which is of the following statement is correct

a. Consists of 5 amino acids

b. H-bond is seen between i and i+3

c. The conformation of i+1 is crucial 

d. dihedral angles of residue i+1 are (70, -60)

which is of the following statements are correct

TLS Online TPP Program

#Question id: 33393

#Unit 1. Molecules and their Interaction Relevant to Biology

In case of Beta Hairpin

TLS Online TPP Program

#Question id: 33394

#Unit 1. Molecules and their Interaction Relevant to Biology

For Helix-turn-Helix, which of the following is correct

TLS Online TPP Program

#Question id: 33395

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is correct for Zinc Finger Motif 

a. Zinc atom stabilizes the structure / fold by coordination bonds. 

b. Each motif contains about 30-50 amino acids.

c. Contains regular patterns of Cys / His, which coordinate with Zinc atom.

TLS Online TPP Program

#Question id: 33396

#Unit 1. Molecules and their Interaction Relevant to Biology

In case of Coiled-coils 

a. Alpha-helices are packed together through the charged interactions only

b. They have heptad repeated sequences.

c. 3.6 aa / turn and 5.2A for a helix. 

d. abcdefg 'a' &'d’ are hydrophobic residues 'e' and 'g' are found to be charged amino.

Which of the following is correct

TLS Online TPP Program

#Question id: 33397

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following characterises domains

a. Highly conversed and may be common in most unrelated proteins.

b. They do not evolve.

c. Can function Independently.

d. Average 100 amino acids.

e. Single hydrophobic core.