2. (a) Describe any two of the secondary structure elements found in peptides. (b) Why do Glycine and Proline destabilise an a-helix secondary structure element? (c) Provide a definition of the term isoelectric point?

Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter22: Proteins
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2.
(a) Describe any two of the secondary structure elements found in
peptides.
(b) Why do Glycine and Proline destabilise an a-helix secondary
structure element?
(c) Provide a definition of the term isoelectric point?
(d) Using the information given below, calculate the pl of the amino
acid citrulline.
H₂N
pK₂ = 9.23
H₂N.
NH
COOH
pK₂ = 2.27
Transcribed Image Text:2. (a) Describe any two of the secondary structure elements found in peptides. (b) Why do Glycine and Proline destabilise an a-helix secondary structure element? (c) Provide a definition of the term isoelectric point? (d) Using the information given below, calculate the pl of the amino acid citrulline. H₂N pK₂ = 9.23 H₂N. NH COOH pK₂ = 2.27
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