==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=5-JAN-2010 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER PROTEINASE INHIBITOR (TRYPSIN) 16-SEP-91 2TLD . COMPND 2 MOLECULE: TRYPSIN; . SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; . AUTHOR Y.MITSUI,Y.TAKEUCHI,T.NONAKA,K.T.NAKAMURA .