(a).

Superposition of the BT2081 N-terminal domain with CBM families that adopt Ig-like folds.

PDB code	CBM family	Optimized r.m.s.d. (Å)	Equivalent positions (No. of Cα atoms)	Sequence identity (%)	P-value†
1i82	CBM9	3.83	67	3.3	2.94 × 10−1
1b90	CBM20	3.39	43	9.1	8.34 × 10−1
2c3v	CBM25	3.01	50	6.5	1.29 × 10−1
2c3g	CBM26	3.45	56	3.6	2.05 × 10−1
2cov	CBM31	3.43	65	5.5	7.31 × 10−2
2bem	CBM33	3.09	72	4.7	2.71 × 10−1
1bvz	CBM34	3.14	59	2.6	7.30 × 10−1