>4K8F_1|Chains A, B, C, D|Transcriptional regulator, Crp/Fnr family|Rhodospirillum rubrum (269796) PPRFNIANVLLSPDGETFFRGFRSKIHAKGSLVCTGEGDENGVFVVVDGRLRVYLVGEEREISLFYLTSGDMFCMHSGCLVEATERTEVRFADIRTFEQKLQTCPSMAWGLIAILGRALTSCMRTIEDLMHHHHHH