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narK

Gene
narK
Protein
Nitrate/nitrite transporter NarK
Organism
Escherichia coli (strain K12)
Length
463 amino acids
Function
Catalyzes nitrate uptake, nitrite uptake and nitrite export across the cytoplasmic membrane. Functions as a nitrate/nitrite exchanger, and protons are probably not co-transported with the substrate.
Similarity
Belongs to the major facilitator superfamily. Nitrate/nitrite porter (TC 2.A.1.8) family.
Mass
49.693 kDa
Sequence
MSHSSAPERATGAVITDWRPEDPAFWQQRGQRIASRNLWISVPCLLLAFCVWMLFSAVAVNLPKVGFNFTTDQLFMLTALPSVSGALLRVPYSFMVPIFGGRRWTAFSTGILIIPCVWLGFAVQDTSTPYSVFIIISLLCGFAGANFASSMANISFFFPKQKQGGALGLNGGLGNMGVSVMQLVAPLVVSLSIFAVFGSQGVKQPDGTELYLANASWIWVPFLAIFTIAAWFGMNDLATSKASIKEQLPVLKRGHLWIMSLLYLATFGSFIGFSAGFAMLSKTQFPDVQILQYAFFGPFIGALARSAGGALSDRLGGTRVTLVNFILMAIFSGLLFLTLPTDGQGGSFMAFFAVFLALFLTAGLGSGSTFQMISVIFRKLTMDRVKAEGGSDERAMREAATDTAAALGFISAIGAIGGFFIPKAFGSSLALTGSPVGAMKVFLIFYIACVVITWAVYGRHSKK

Gene
narK
Protein
Nitrite extrusion protein
Organism
Bacillus subtilis (strain 168)
Length
395 amino acids
Function
Involved in excretion of nitrite produced by the dissimilatory reduction of nitrate.
Similarity
Belongs to the major facilitator superfamily. Nitrate/nitrite porter (TC 2.A.1.8) family.
Mass
42.926 kDa
Sequence
MINRQHIQLSLQSLSLVAGFMVWVLISSLISQITLDIHLSKGEISLVTAIPVILGSLLRIPLGYLTNRFGARLMFMVSFILLLFPVFWISIADSLFDLIAGGFFLGIGGAVFSIGVTSLPKYYPKEKHGVVNGIYGAGNIGTAVTTFAAPVIAQAVGWKSTVQMYLILLAVFALLHVLFGDRHEKKVKVSVKTQIKAVYRNHVLWFLSLFYFITFGAFVAFTIYLPNFLVEHFGLNPADAGLRTAGFIAVSTLLRPAGGFLADKMSPLRILMFVFAGLTLSGIILSFSPTIGLYTFGSLTVAVCSGIGNGTVFKLVPFYFSKQAGIANGIVSAMGGLGGFFPPLILASVFQATGQYAIGFMALSEVALASFVLVIWMYWQERMKTHTERNSQSIN