What chemical feature in the protein dictates the local secondary structure?

α-helix
β-pleated sheet
random coils
amino acid sequence
pH
hydrogen bonding

6 answers

the primary structure consisted of beta-pleated sheet..so the secondary structure is where the structure coiled and characterized by an alpha-helix. i don't about random coils...

i chose hydrogen bond but its wrong..so its alpha helix....
It is not alpha helix
it should be..
or both..alpha helix and hydrogen bond
Nope. just checked. though there might be a third correct answer...
Can anybody get correct answer for this question?