Problem: Consider the following peptide sequences:
EANQIDEMLYNVQCSLTTLEDTVPW
LGVHLDITVPLSWTWTLYVKL
QQNWGGLVVILTLVWFLM
CNMKHGDSQCDERTYP
YTREQSDGHIPKMNCDS
AGPFGPDGPTIGPK
Which of the above sequences would most likely be found in each of the following structures and why?
(a) An antiparallel b-sheet.
(b) A collagen molecule.
(c) The helical portions of a protein found in your hair.