An Overview of Biological Basics - Bioprocess Engineering: Kinetics, Biosystems, Sustainability and Reactor Design - page 46

C

C

N

C

C

N

C

C

C N

C

N

C

C

N

Pitch = 0.54 nm
(3.6 residues)

C

C

N

C

N

C

C

N

C

C

N

C

C

N

C

C

N

FIGURE 2.13 The a -helical structure of fibrous proteins.

C H

C H

C C

C

C C

C

C C

O

O

H

H

N

N

C C

C

C C C

H C

H C C C

C

C

O O

H

H

N C N C

H

H C

C

C C

C

C C

C

C

C

O

O

H

H

N

N C C

C

C C H C C

C

H C

C

C

C

O

O

H

H

N

C C

N

C H

C H

C C

C

C C

C

C

C

O

O

O

O

H

H

H

C-Terminal side N-Terminal side C-Terminal side N-Terminal side
FIGURE 2.14 Representation of an antiparallel b -pleated sheet. Dashed lines indicate hydrogen bonds between
strands.