==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=11-DEC-2009 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER BIOSYNTHETIC PROTEIN 16-SEP-03 1QZD . COMPND 2 MOLECULE: ELONGATION FACTOR TU; . SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; . AUTHOR M.VALLE,A.ZAVIALOV,W.LI,S.M.STAGG,J.SENGUPTA,R.C.NIELSEN, .