Can Cysteine Form Hydrogen Bonds?

The hydrogen-bonding interactions of cysteine, which can serve as a hydrogen-bond donor and/or acceptor, play a central role in cysteine's diverse functional roles in proteins.

Which amino acids can form hydrogen bonds?

The amino acids asparagine and glutamine posses amide groups in their side chains which are usually hydrogen-bonded whenever they occur in the interior of a protein.

Can serine and cysteine form hydrogen bonds?

Hydrogen bonding within a helix provides a way for serine, threonine and cysteine residues to satisfy their hydrogen-bonding potential permitting such residues to occur in helices buried within a hydrophobic milieu.