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Figure 2.
Fig. 2. Schematic representation of HA3a and each domain of
HA3b. β-Strands of each domain are indicated with arrowheads
and numbered. The helices are illustrated as black columns and
labeled alphabetically. Domain I of HA3a and HA3b are
structurally similar to each other. However, HA3b domain I
contains the Pro-loop and the short β-strands, βI and βII,
which run between the β6–β6′ and β7–β7′ strands, and
these structural features differ from HA3a. HA3b domain II and
domain III form similar structural compositions, jelly-roll-like
folds.
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