Current holdings

This page gives statistics on the current holdings of this database. The last update was done in March 2018.

123505 PDB files

339560 Protein chains

6408651 Secondary structure elements (SSEs)

6490067 3D contacts between SSEs of the same chain

Graph type Number of graphs Graphs containing beta-barrels Number of SSEs in graphs
Alpha 322029 0 2972733
Beta 322029 8791 2738734
Alpha-Beta 322029 8791 5711467
Alphalig 322029 0 3669917
Betalig 322029 8791 3435918
Alpha-Betalig 322029 8791 6408651

Number of SSEs in graphs





Number of SSEs by type





Number of contacts by type