a singal polypeptide chain attain up to ----- level ?
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ʜɪɪ ᴍᴀᴛᴇ ʜᴇʀᴇ's ᴜʀ ᴀɴsᴡᴇʀ
ᴛʜᴇ sᴇᴄᴏɴᴅᴀʀʏ sᴛʀᴜᴄᴛᴜʀᴇ ᴏғ ᴛʜᴇ ᴘʀᴏᴛᴇɪɴ ɪs ᴛʜᴇ ᴘʀᴏᴛᴇɪɴ ᴡʜɪᴄʜ ɪs ғᴏʀᴍᴇᴅ ʙʏ ᴛʜᴇ ᴛʜʀᴇᴇ-ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴄᴏɴғɪɢᴜʀᴀᴛɪᴏɴ ᴏғ ᴘʀᴏᴛᴇɪɴ. ᴀʟᴘʜᴀ ʜᴇʟɪx ᴀɴᴅ ʙᴇᴛᴀ ᴘʟᴇᴀᴛᴇᴅ sᴛʀᴜᴄᴛᴜʀᴇ ᴀʀᴇ ᴛʜᴇ sᴇᴄᴏɴᴅᴀʀʏ sᴛʀᴜᴄᴛᴜʀᴇ ᴏғ ᴘʀᴏᴛᴇɪɴ sᴛᴀʙɪʟɪᴢᴇᴅ ʙʏ ʜʏᴅʀᴏɢᴇɴ ʙᴏɴᴅs.
ᴀʟᴘʜᴀ ʜᴇʟɪx sᴛʀᴜᴄᴛᴜʀᴇ ᴏғ ᴛʜᴇ ᴘʀᴏᴛᴇɪɴ ɪs ᴀ ғᴏʀᴍ ᴏғ ᴛʜᴇ sᴇᴄᴏɴᴅᴀʀʏ sᴛʀᴜᴄᴛᴜʀᴇ ᴏғ ᴛʜᴇ ᴘʀᴏᴛᴇɪɴ. ɪᴛ ɪs ғᴏʀᴍᴇᴅ ᴅᴜᴇ ᴛᴏ ᴛʜᴇ ғᴏʀᴍᴀᴛɪᴏɴ ᴏғ ʜʏᴅʀᴏɢᴇɴ ʙᴏɴᴅs ʙᴇᴛᴡᴇᴇɴ ʙᴀᴄᴋʙᴏɴᴇ ᴀᴍɪᴅᴇ ᴀɴᴅ ᴄᴀʀʙᴏɴʏʟ ɢʀᴏᴜᴘs. ᴛʜᴇ ʜʏᴅʀᴏɢᴇɴ ʙᴏɴᴅs ʟɪɴᴋᴀɢᴇ ɪs ғᴏʀᴍᴇᴅ ʙᴇᴛᴡᴇᴇɴ ɴ-ʜ ɢʀᴏᴜᴘ ᴏғ ᴏɴᴇ ᴀᴍɪɴᴏ ʀᴇsɪᴅᴜᴇ ᴡɪᴛʜ ᴀ ᴄ=ᴏ ɢʀᴏᴜᴘ ᴏғ ᴀɴᴏᴛʜᴇʀ ᴀᴍɪɴᴏ ᴀᴄɪᴅ, ᴡʜɪᴄʜ ɪs ᴘʟᴀᴄᴇᴅ ɪɴ 4 ʀᴇsɪᴅᴜᴇs ᴇᴀʀʟɪᴇʀ. ᴇᴀᴄʜ ᴛᴜʀɴ ᴏғ ᴀʟᴘʜᴀ ʜᴇʟɪx ᴄᴏɴᴛᴀɪɴs 3.6 ᴀᴍɪɴᴏ ᴀᴄɪᴅ ʀᴇsɪᴅᴜᴇ.
β-ᴘʟᴇᴀᴛᴇᴅ sᴇᴄᴏɴᴅᴀʀʏ ᴘʀᴏᴛᴇɪɴ sᴛʀᴜᴄᴛᴜʀᴇ ɪs ғᴏʀᴍᴇᴅ ʙʏ ᴛʜᴇ ᴘᴀʀᴀʟʟᴇʟ ᴏʀ ᴀɴᴛɪ-ᴘᴀʀᴀʟʟᴇʟ ᴘᴏʟʏᴘᴇᴘᴛɪᴅᴇ ᴄʜᴀɪɴ ʟɪɴᴋᴇᴅ ᴛᴏɢᴇᴛʜᴇʀ ʙʏ ʜ - ʙᴏɴᴅs. ɪᴛ ɪs sᴛᴀʙɪʟɪᴢᴇᴅ ʙʏ ᴛʜᴇ ʜʏᴅʀᴏɢᴇɴ ʙᴏɴᴅs ғᴏʀᴍᴇᴅ ʙᴇᴛᴡᴇᴇɴ ɴʜ ᴀɴᴅ ᴄᴏ ᴏғ ᴛʜᴇ ᴀᴅᴊᴀᴄᴇɴᴛ ᴘᴏʟʏᴘᴇᴘᴛɪᴅᴇ ᴄʜᴀɪɴ. ᴛʜᴇ ᴅɪsᴛᴀɴᴄᴇ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ᴀᴅᴊᴀᴄᴇɴᴛ ᴀᴍɪɴᴏ ᴀᴄɪᴅs ɪs 3.5 ᴀ
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