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nasA

Gene
nasA
Protein
Nitrate reductase
Organism
Klebsiella oxytoca
Length
866 amino acids
Function
Nitrate reductase is a key enzyme involved in the first step of nitrate assimilation in plants, fungi and bacteria.
Similarity
Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. NasA/NapA/NarB subfamily.
Mass
93.897 kDa
Sequence
MTETRTTCPYCGVGCGVIASRAPHGQVSVRGDEQHPANFGRLCVKGAALGETVGLEGRMLFPEVDGERATWPQALAAAGSRLREIIDRHGPQAVAFYASGQLLTEDYYAANKLMKGFIGAANIDTNSRLCMSSAVTGYKRALGADVVPCSYEDVENSDLVVLVGSNAAWAHPVLYQRLAQAKRDNPQMRVVVIDPRRTATCDIADRHLALAPGSDGGLFVGLLNAIAASGAISDDFNDAQRALTIAQDWDLDKVAQFCGLPRQQIADFYREFIAAPRAITLYTMGINQSASGSDKCNAIINVHLACGKYGRPGCGPFSLTGQPNAMGGREVGGLATMLAAHMNFEPDDLRRLARFWGSERLAQTPGLTGVELFAAIGRGEVKAVWIMGTNPVVSLPDSHAVSEALARCPLVIISDVVADTDTGRFAHIRFPALAWGEKSGTVTNSERRISRQRAFMPPPGEARADWWIVARVAEALGFGSAFAWQHPHEVFSEHAALSGYENDGQRAFDIGGLADLSREAWDALEPVRWPVSRSEAAWSVHKGWHRDGKLRMVPVAPQPTRATTDAFYPLILNSGRIRDQWHTMTRTGAVPRLMQHINEPVVEVAPADAQRYHLLEGELARVRSPKGVMVAKVTIGDGQRPGSLFVPMHWNNQFARQGRVNNLLAAVTDPHSGQPESKQTAVAIATWLPAWKGELFSRQPVPLPASLHWRRRAAQGIIHLSLAGDTRSRDWLVEWCQRQGWQMQVAEGGKVWNLLAWRAGELMLGWWSDASEPAIDADWIHAAFRVPPQNAARRHALLSGRKGGVEMPRGRIICSCFSVGERAIGEAIAGGCRTPGALGGKLKCGTNCGSCIPELKALLAAKLAQA

Gene
nasA
Protein
Assimilatory nitrate reductase
Organism
Haloferax mediterranei (strain ATCC 33500 / DSM 1411 / JCM 8866 / NBRC 14739 / NCIMB 2177 / R-4)
Length
708 amino acids
Function
Nitrate reductase is a key enzyme involved in the first step of nitrate assimilation. Catalyzes the reduction of nitrate to nitrite, using ferredoxin as the electron donor. Can use reduced methyl viologen but neither NADPH nor NADH as electron donors.
Similarity
Belongs to the prokaryotic molybdopterin-containing oxidoreductase family. NasA/NapA/NarB subfamily.
Mass
75.211 kDa
Sequence
MPRNLRFLSVVNHVTKQVPTTCMRCAVGCGHVHLGSENAYGLETVRGDPSHPVNNGLACGRGIRESADPAGEWLTRPLVREDGELVQTSWSDAMARVGATIRTAVATDPDEVAVLGSGQQTNEAAYALGKLARAGIGTRNYDANTTLCMASAVTAYYRAFGSDAPPPTYDDIPNAETHLVWGANPAVAHPVMFRWIRQSATDGRLVVVDPVETKTAAVADDHVSVAPGGDLALARAILRHLVDTDQIDESFVRSNTEGFDDVVSALPSVTDAAARAGVSLDTVEELAALLDAPTLIYWGMGVNQSVRGTATAGALVNLCLASGNLGPGTGPFSLTGQANSMGTRVCSSKGTWSGHRPFEHPDHRRAVAEAWDVPVSRLPDDSGPGPVGILDSSPSVVWTVATNPLAGFPDATAAREVLRDSFLVVQDAFRSDTVELADVVLPAATWGESEGTAMNMERTVSRIRAATETPPGVRQDLDIIADVAARVAPGLLPRPPVSPSAIFDEFAALTEGTDADCSGISYTRLDGERAVRWPAPEPNSDAGYRYYDPSTSRWTFPTPSGKARFSTLDGEPLPEPVDGDYPLTLTTGREADGYNTGVRSRSDTPEEPVARVNPETVDTYHDAVADTDGELRTTVVSRRASVSVTLDRDDAVPPGLVWLSIHHPMTNQLTSPAVDPQSNEPNFKQCAVRFVHPDAPAKADFLAAEVSD

Gene
nasA
Protein
Nitrate transporter
Organism
Bacillus subtilis (strain 168)
Length
401 amino acids
Function
May function as a nitrate transporter.
Similarity
Belongs to the major facilitator superfamily. Nitrate/nitrite porter (TC 2.A.1.8) family.
Mass
42.712 kDa
Sequence
MKLSELKTSGHPLTLLCSFLYFDVSFMIWVMLGALGVYISQDFGLSPFEKGLVVAVPILSGSVFRIILGILTDRIGPKKTAVIGMLVTMIPLLWGTFGGRSLTELYAIGILLGVAGASFAVALPMASRWYPPHLQGLAMGIAGAGNSGTLFATLFGPRLAEQFGWHIVMGIALIPLLIVFILFVSMAKDSPAQPSPQPLKSYLHVFGQKETWFFCLLYSVTFGGFVGLSSFLSIFFVDQYQLSKIHAGDFVTLCVAAGSFFRPVGGLISDRVGGTKVLSVLFVIVALCMAGVSSLPSLSMVIVLLFVGMMGLGMGNGAVFQLVPQRFRKEIGMVTGIVGAAGGIGGFFLPNILGSLKQMTGTYAIGFITFSCIALLAFALVLAAGYYWRKSWSAESSPADV