RPSBLAST alignment for GI: 254780273 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 = 72.6 bits (178), Expect = 3e-13
 Identities = 57/227 (25%), Positives = 90/227 (39%), Gaps = 58/227 (25%)

Query: 8   HMAGLSKVFGSKK----VLDDINLSFYPDAKIGILGPNGAGKSTILRIMAGIDKEYNGEA 63
               L+K F   K     +D ++ +  P    G+LGPNGAGK+T LR++AG+ +   G A
Sbjct: 3   TADALTKRFRDVKKTVQAVDGVSFTVKPGEVTGLLGPNGAGKTTTLRMLAGLLEPDAGFA 62

Query: 64  WLATGFTVGYLPQEPQLDLS-----------KTVKENI-----IEGVAHKQAILDRYNEL 107
            +  GF V   P E +  L             T +EN+     + G+     +  R  EL
Sbjct: 63  TVD-GFDVVKEPAEARRRLGFVSDSTGLYDRLTARENLEYFAGLYGLK-GDELTARLEEL 120

Query: 108 MMNYSEKTEEEIAKLQDIIDSKGLWDLETEVQVAIESLHCPADGLNITSLSGGEKRRVAL 167
                           D +  + L D                        S G +++VA+
Sbjct: 121 A---------------DRLGMEELLDRRVG------------------GFSTGMRQKVAI 147

Query: 168 CKLLLSSPDLLLLDEPTNHLDAETIAWMEKYLREYSG---AVLMVTH 211
            + L+  P +LLLDEPT  LD      + +++R+       +L  TH
Sbjct: 148 ARALVHDPPVLLLDEPTTGLDVMATRALREFIRQLRALGKCILFSTH 194