RPSBLAST alignment for GI: 254780173 and conserved domain: cd03266

>gnl|CDD|73025 cd03266, ABC_NatA_sodium_exporter, NatA is the ATPase component of a bacterial ABC-type Na+ transport system called NatAB, which catalyzes ATP-dependent electrogenic Na+ extrusion without mechanically coupled proton or K+ uptake. NatB possess six putative membrane spanning regions at its C-terminus. In B. subtilus, NatAB is inducible by agents such as ethanol and protonophores, which lower the protonmotive force across the membrane. The closest sequence similarity to NatA is exhibited by DrrA of the two-component daunomycin- and doxorubicin-efflux system. Hence, the functional NatAB is presumably assembled with two copies of a single ATP-binding protein and a single intergral membrane protein.. Length = 218
 Score =  113 bits (284), Expect = 5e-26
 Identities = 58/221 (26%), Positives = 104/221 (47%), Gaps = 14/221 (6%)

Query: 18  VEIKFLNKWYGN----FHALRDINLNVLRGERVIIAGPSGSGKSTLIRCINHIEKHQAGE 73
           +    L K + +      A+  ++  V  GE   + GP+G+GK+T +R +  + +  AG 
Sbjct: 2   ITADALTKRFRDVKKTVQAVDGVSFTVKPGEVTGLLGPNGAGKTTTLRMLAGLLEPDAGF 61

Query: 74  IIINGIPLNDDIRNIHEVRRDVGMVFQHFNLFSNLSVLENCT-LGPIW--VRKMPKKDAE 130
             ++G    D ++   E RR +G V     L+  L+  EN      ++           E
Sbjct: 62  ATVDGF---DVVKEPAEARRRLGFVSDSTGLYDRLTARENLEYFAGLYGLKGDELTARLE 118

Query: 131 ELAMHYLNKVKIADKSHRSSSLLSGGESQRAAIARSLCMQPKIMLFDEPTSALDPEMVKE 190
           ELA    +++ + +   R     S G  Q+ AIAR+L   P ++L DEPT+ LD    + 
Sbjct: 119 ELA----DRLGMEELLDRRVGGFSTGMRQKVAIARALVHDPPVLLLDEPTTGLDVMATRA 174

Query: 191 VLDIMIELAEEGMTMVCVTHEMGFARQVADRVVFMDQGQIV 231
           + + + +L   G  ++  TH M    ++ DRVV + +G++V
Sbjct: 175 LREFIRQLRALGKCILFSTHIMQEVERLCDRVVVLHRGRVV 215