>sp|Q53176|NAPA_CERS4 Periplasmic nitrate reductase OS=Cereibacter sphaeroides GN=napA MTLTRRDLIKAQAAATAAAAAGLPVSALAQPVTGGAEALRIRWSKAPCRFCGTGCGVMVG TRDGQVVATHGDTQAEVNRGLNCVKGYFLSKIMYGEDRLTTPLLRMKDGVYHKEGEFAPV SWDEAFDVMAAQAKRVLKEKGPKAVGMFGSGQWTIWEGYAASKLMRAGFRSNNLDPNARH CMASAATAFMRTFGMDEPMGCYDDFEAADAFVLWGSNMAEMHPILWSRLTDRRLSHEHVR VAVLSTFTHRSMDLADTPIIFRPGTDLAILNYIAHHIISTGRVNRDFVDRHTNFALGATD IGYGLRPEHQLQLAAKGAADAGAMTPTDFETFAALVSEYTLEKAAEISGVEPALLEELAE LYADPDRKVMSLWTMGFNQHVRGVWANHMVYNLHLLTGKISEPGNSPFSLTGQPSACGTA REVGTFAHRLPADMVVTNPEHRAHAEEIWKLPAGLLPDWVGAHAVEQDRKLHDGEINFYW VQVNNNMQAAPNIDQETYPGYRNPENFIVVSDAYPTVTGRCADLVLPAAMWVEKEGAYGN AERRTHFWHQLVEAPGEARSDLWQLMEFSKRFTTDEVWPEEILSAAPAYRGKTLFEVLFA NGSVDRFPASDVNPDHANHEAALFGFYPQKGLFEEYAAFGRGHGHDLAPFDTYHEVRGLR WPVVEGEETRWRYREGFDPYVKPGEGLRFYGKPDGRAVILGVPYEPPAESPDEEFGFWLV TGRVLEHWHSGSMTLRVPELYKAFPGAVCFMHPEDARSRGLNRGSEVRVISRRGEIRTRL ETRGRNRMPRGVVFVPWFDASQLINKVTLDANDPISRQTDFKKCAVKIEAV