==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=27-NOV-2009 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER ALU RIBONUCLEOPROTEIN PARTICLE 29-SEP-00 1E8S . COMPND 2 MOLECULE: SIGNAL RECOGNITION PARTICLE 9 KDA PROTEIN; . SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; . AUTHOR O.WEICHENRIEDER,K.WILD,K.STRUB,S.CUSACK .