==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=10-DEC-2009 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER TRANSFERASE(PHOSPHO,ALCOHOL ACCEPTOR) 18-JAN-80 1PYK . COMPND 2 MOLECULE: PYRUVATE KINASE; . SOURCE 2 ORGANISM_SCIENTIFIC: FELIS CATUS; . AUTHOR H.MUIRHEAD,M.LEVINE,D.K.STAMMERS,D.I.STUART .