Sequence Identity Percent Range	% of structures
	PSI1	PSI2	PDB excluding PSI1 and PSI2
0-10	55	66	3
10-20	6	6	1
20-30	10	9	4
30-40	7	3	3
40-50	4	2	2
50-60	3	1	2
60-70	0	1	2
70-80	1	0	1
80-90	0	1	2
90-95	2	1	15
95-100	12	10	55