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TLS Online TPP Program

#Question id: 27642

Choose the incorrect statement regarding β-turns

#Unit 1. Structure and Function of Biomolecules
  1. Type I turns are more common than type II
  2. Proline fits best in the 3 position of the type I turn
  3. In the type II turn, proline is preferred at the 3 position, whereas the 2 position prefers glycine or small polar residues.

  4. In the type II turn, proline is preferred at the 2 position, whereas the 3 position prefers glycine or small polar residues.

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TLS Online TPP Program

#Question id: 27629

#Unit 1. Structure and Function of Biomolecules

Length of alpha helix can be calculated  by using
TLS Online TPP Program

#Question id: 27630

#Unit 1. Structure and Function of Biomolecules

α helices are common components of polypeptide chains, they need to be of a certain minimum length of then which of the following graph is correctly representing that certain minimum length condition
TLS Online TPP Program

#Question id: 27631

#Unit 1. Structure and Function of Biomolecules

Interactions between amino acid residues at the ends of the helical segment and the electric dipole inherent to the  helix so which of the following representing the actual dipole moment along the peptide bond atoms C=O– N-H
TLS Online TPP Program

#Question id: 27632

#Unit 1. Structure and Function of Biomolecules

The two forms of poly(Pro) helix all cis (I) or all trans (II) peptide bonds with different no of amino acid per turn

(a) poly(Pro) I as a right-handed helix with 3.3 residues per turn 

(b) poly(Pro) I as a right-handed helix with 3 residues per turn 

(c) poly(Pro) II is a left-handed helix with 3 residues per turn.

(d) poly(Pro) II is a left-handed helix with 3.3 residues per turn.

Choose the correct options of the following
TLS Online TPP Program

#Question id: 27633

#Unit 1. Structure and Function of Biomolecules

Amino acid and condtion/propensity of forming helix is given
(a) Polyleucine and polyalanine readily do not form a-helical structures.
(b) Polyleucine and polyalanine readily form a-helical structures.
(c) Below pH 12, polylysine chain, readily forms an a-helix
(d) At pH 12, polylysine chain, readily forms an a-helix
(e) Below pH 5olyGlu readily do not forms an a-helix.
(f) Below pH 5olyGlu readily forms an a-helix.
Choose the correct options of the following
TLS Online TPP Program

#Question id: 27634

#Unit 1. Structure and Function of Biomolecules

Which of the following set of amino acid can form beta sheet