Question

Proline disturbs helical structure in proteins because it is

Answer 1

Answer:

Proline either breaks or kinks a helix, both because it cannot donate an amide hydrogen bond (having no amide hydrogen), and also because its sidechain interferes sterically with the backbone of the preceding turn – inside a helix, this forces a bend of about 30° in the helix's axis.....

Answer 2

ᵠᵘᵉˢᵗⁱᵒⁿ ?

ʷʰᵃᵗ ⁱˢ ˢᵃᵖⁿᵒᶠⁱᶜᵃᵗⁱᵒⁿ

ᵃⁿˢʷᵉʳ:

ᴘʀᴏʟɪɴᴇ ᴇɪᴛʜᴇʀ ʙʀᴇᴀᴋs ᴏʀ ᴋɪɴᴋs ᴀ ʜᴇʟɪx, ʙᴏᴛʜ ʙᴇᴄᴀᴜsᴇ ɪᴛ ᴄᴀɴɴᴏᴛ ᴅᴏɴᴀᴛᴇ ᴀɴ ᴀᴍɪᴅᴇ ʜʏᴅʀᴏɢᴇɴ ʙᴏɴᴅ (ʜᴀᴠɪɴɢ ɴᴏ ᴀᴍɪᴅᴇ ʜʏᴅʀᴏɢᴇɴ), ᴀɴᴅ ᴀʟsᴏ ʙᴇᴄᴀᴜsᴇ ɪᴛs sɪᴅᴇᴄʜᴀɪɴ ɪɴᴛᴇʀғᴇʀᴇs sᴛᴇʀɪᴄᴀʟʟʏ ᴡɪᴛʜ ᴛʜᴇ ʙᴀᴄᴋʙᴏɴᴇ ᴏғ ᴛʜᴇ ᴘʀᴇᴄᴇᴅɪɴɢ ᴛᴜʀɴ – ɪɴsɪᴅᴇ ᴀ ʜᴇʟɪx, ᴛʜɪs ғᴏʀᴄᴇs ᴀ ʙᴇɴᴅ ᴏғ ᴀʙᴏᴜᴛ 30° ɪɴ ᴛʜᴇ ʜᴇʟɪx's ᴀxɪs.