==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=29-DEC-2009 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER SIGNAL TRANSDUCTION PROTEIN 17-MAY-90 2CHY . COMPND 2 MOLECULE: CHEY; . SOURCE 2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM; . AUTHOR J.M.MOTTONEN,A.M.STOCK,J.B.STOCK,C.E.SCHUTT .