This protein contains a right-handed β-helix with 1 face made up of parallel β-strands. This β-sheet is very flat, but the strands contain only 3 residues.
Liou, Y.-C., Tocilj, A., Davies, P. L., Jia, Z.: Mimicry of Ice Structure by Surface Hydroxyls and Water of a Beta-Helix Antifreeze Protein Nature 406 pp. 322 (2000)
(PubMed)