Table 2.

Globin–globin conserved binding modes

CBM	No. of structuresa	No. of total structures	No. of species	Taxonomy description
1	60	154	18	jawed_vertebrates
2	42	112	13	jawed_vertebrates
3	5	17	2	clam, earthworm
4	3	4	2	river and sea lamprey
5	3	4	1	Vitreoscilla_stercoraria
6	2	2	2	rice and soybeans
7	2	2	1	human
8	2	2	2	river and sea lamprey

^a The number of nonredundant structures with respect to unique cell constants.