==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=9-DEC-2009 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER RIBOSOME 27-FEB-03 1OND . COMPND 2 MOLECULE: 23S RIBOSOMAL RNA; . SOURCE 2 ORGANISM_SCIENTIFIC: DEINOCOCCUS RADIODURANS; . AUTHOR R.BERISIO,F.SCHLUENZEN,J.HARMS,A.BASHAN,T.AUERBACH,D.BARAM, .