==== Secondary Structure Definition by the program DSSP, updated CMBI version by ElmK / April 1,2000 ==== DATE=26-NOV-2009 . REFERENCE W. KABSCH AND C.SANDER, BIOPOLYMERS 22 (1983) 2577-2637 . HEADER CELL ADHESION 29-SEP-99 1D3L . COMPND 2 MOLECULE: PROTEIN (INTERCELLULAR ADHESION MOLECULE-1); . SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; . AUTHOR J.BELLA,P.R.KOLATKAR,M.G.ROSSMANN .