588694 | 484174 (3D|2D) unique referenced structure-organism pairs. 
 They consist of 
 231330 | 153956 (3D|2D) unique curated structures and 
 42166 unique organisms,
 originating from 
 31 initial open databases. 
 
 Among 2D structures, 
 89903 are present in only 1 organism, 
 45640 are present in between 1 and 10 organisms, 
 3990 are present in between 10 and 100 organisms, 
 403 are present in more than 100 organisms. 
 
 Among organisms, 
 7354 contain only 1 2D structure, 
 21490 contain between 1 and 10 2D structures, 
 10683 contain between 10 and 100 2D structures, 
 374 contain more than 100 2D structures. 
