>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 = 84.2 bits (208), Expect = 1e-16 Identities = 56/203 (27%), Positives = 84/203 (41%), Gaps = 34/203 (16%) Query: 284 VLEADKITKQYDDR----LVVKDFSLRIHYGECIGIVGPNGAGKTTLLKLLTGKIKPDCG 339 ++ AD +TK++ D V S + GE G++GPNGAGKTT L++L G ++PD G Sbjct: 1 MITADALTKRFRDVKKTVQAVDGVSFTVKPGEVTGLLGPNGAGKTTTLRMLAGLLEPDAG 60 Query: 340 FITLGTNLKIATIDQKREDIDPDKSLASYLTGSSGDSLMVRGESRHVAGYIKDFL-FHPD 398 F T + D +E + + L S L R +R Y D Sbjct: 61 FAT------VDGFDVVKEPAEARRRLGFV---SDSTGLYDRLTARENLEYFAGLYGLKGD 111 Query: 399 QAHSLMKHL-----------------SGGEKMRAIVARVLAQPFNFLIMDEPTNDLD-FE 440 + + ++ L S G + + +AR L L++DEPT LD Sbjct: 112 ELTARLEELADRLGMEELLDRRVGGFSTGMRQKVAIARALVHDPPVLLLDEPTTGLDVMA 171 Query: 441 TLDFLE--RTITQLQGTILIVSH 461 T E R + L IL +H Sbjct: 172 TRALREFIRQLRALGKCILFSTH 194

RPSBLAST alignment for GI: 254781123 and conserved domain: cd03266