If the pyrollidine ring of proline is reduced to a linear to a linear form, the new amino acid will have (1) constrained ϕ than proline (2) constrained Ψ than […]
Tag: CSIR protein PYQ
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CSIR PYQ Biochemistry-Conformation of Proteins
Ramachandran Plot Quadrant for β-Strands of D-Amino Acids
The ϕ and Ψ values of a ß-strand composed of all D- amino acids will mainly occupy which quadrant in the Ramachandran plot? (1) upper left (2) upper right (3) […]
CSIR PYQ Biochemistry-Conformation of Proteins
Ramachandran Plot: Understanding Glycine, L-Alanine & L-Proline
3. On a Ramachandran plot – glycine, L-Ala and L-Pro were plotted. Which statement is correct? (1) L-alanine will occupy greatest area (2) All amino acids will occupy same area […]
CSIR PYQ Biochemistry-Conformation of Proteins
Understanding Phi (ϕ) and Psi (ψ) Angles in Peptides
In the diagram for peptide shown below, angle ϕ represents bonds between (1) N – C’ (2) C’ – C (3) C – O (4) N – H […]
CSIR PYQ Biochemistry-Conformation of Proteins
Understanding the Planarity of the Peptide Bond
The peptide unit (Cα – C’O – NH – Cα) is planer due to (1) restriction around Cα – C’ bond (2) restriction around C’ – N bond (3) restriction […]
