Type: HA beta-beta hairpin
Class of length: 2
Class: 2.1 | Consensus Ramachandran - bbllbb
Subclass: 2.1.1 | Consensus Sequence - XppGXX
Subclass: 2.1.2 | Consensus Sequence - XXpGpX
Subclass: 2.1.3 | Consensus Sequence - Hpppph