ID REACTION_CENTER; PATTERN. AC PS00244; DT 01-APR-1990 CREATED; 01-DEC-2001 DATA UPDATE; 29-MAY-2024 INFO UPDATE. DE Photosynthetic reaction center proteins signature. PA [NQH]-x(4)-P-x-H-x(2)-[SAG]-x(11)-[SAGC]-x-H-[SAG](2). CC /SITE=5,magnesium; /SITE=11,iron; CC /VERSION=1; DO PDOC00217; //