==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=19-JAN-2010 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER CHAPERONE PROTEIN 09-OCT-91 3DPA . COMPND 2 MOLECULE: CHAPERONE PROTEIN PAPD; . SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; . AUTHOR A.HOLMGREN,C.-I.BRANDEN .