Table 2.

Comparison of sequence compositions for GLB3, GLBO, and GLBN 2-on-2 HBs

Residue or domain	GLB3	GLBO	GLBN
F1	H	H	Not conserved
F2	P	P	Not conserved
F7	R	R	Not conserved
fg6	V	VI	Not conserved
bc loop	7–8 residues	5–9 residues	5 residues
ef loop	15 residues	15 residues	11 residues
G helix	25 residues	25 residues	17–21 residues