Six members from globin family are selected and aligned by FMALIGN utilizing sequentially conserved regions. The structure-annotated JOY  representation of the alignment shows high conservation of structural features retained in this alignment. Capital and small letters represent solvent-buried and solvent-exposed residues, respectively. Helices and β-strands are represented in red and blue colours, respectively. Concensus secondary structures are marked. Hydrogen bonding patterns are also annotated: hydrogen bond to main chain and side chain are indicated in bold and underlined, respectively. Residues with positive-φ conformation are italised.