>sp|Q53228|REGA_CERS4 Photosynthetic apparatus regulatory protein RegA OS=Cereibacter sphaeroides GN=regA MAEDLVFELGADRSLLLVDDDEPFLKRLAKAMEKRGFVLETAQSVAEGKAIAQARPPAYA VVDLRLEDGNGLDVVEVLRERRPDCRIVVLTGYGAIATAVAAVKIGATDYLSKPADANEV THALLAKGESLPPPPENPMSADRVRWEHIQRIYEMCDRNVSETARRLNMHRRTLQRILAK RSPR