>tr|A0A6N9RBI8|A0A6N9RBI8_9BURK NADH-quinone oxidoreductase subunit B OS=Polaromonas sp GN=nuoB MSLEGVFKEGFVTTSYDSVVNWAKTGSLWPMTFGLACCAVEMMHAGAARYDIDRFGMLFR PSPRQSDLMIVAGTLCNKMGPALRKVYDQMAEPRWVISMGSCANGGGYYHYSYSVVRGCD RIVPVDVYVPGCPPTAEALLYGIIQLQQKIRRTNTIARA