==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=28-DEC-2009 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER HYDROLASE(ACTING IN CYCLIC AMIDES) 02-FEB-90 2BLM . COMPND 2 MOLECULE: BETA-LACTAMASE; . SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS LICHENIFORMIS; . AUTHOR P.C.MOEWS,J.R.KNOX,O.DIDEBERG .