Hi all,
IMPORTANT CLARIFICATION: Some texts regards -S-S- disulphide link as part of primary protein sturcture. This is from definition that primary structure is made by covalent bonding. Also certain proteins exist as crosslinked polymers, hence the inclusion of -S-S- as primary structure.
BUT PLEASE TAKE NOTE: at A lvls, the primary structure is defined ONLY by the amino acid sequence joined up by peptide links. Please do not include S-S in its definition.
-S-S- link is weak and considered to be part of tertiary structure.
Please make sure you highlight this on your notes.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment