Class: Small proteins [56992]
Usually dominated by metal ligand, heme, and/or disulfide bridges
Fold: Zinc hairpin stack [161244]
stack of beta-hairpins; in the middle hairpins, there is HCxxCxxC motif, the first and the last residues of which contribute to the zinc-binding site on one side of hairpin, whereas the middle residues contribute to the zinc-binding site on the other side
