ID PHYTOCHROME_1; PATTERN. AC PS00245; DT 01-APR-1990 CREATED; 01-NOV-1997 DATA UPDATE; 29-MAY-2024 INFO UPDATE. DE Phytochrome chromophore attachment site signature. PA [RGS]-[GSA]-[PV]-H-x-C-H-x(2)-Y. CC /SITE=6,chromophore; CC /VERSION=1; DO PDOC00218; //