>gnl|CDD|73026 cd03267, ABC_NatA_like, Similar in sequence to NatA, this is the ATPase component of a bacterial ABC-type Na+ transport system called NatAB, which catalyzes ATP-dependent electrogenic Na+ extrusion without mechanically coupled to proton or K+ uptake. NatB possess six putative membrane spanning regions at its C-terminus. In B. subtilis, 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 the single ATP-binding protein and the single intergral membrane protein.. Length = 236

Score = 107 bits (269), Expect = 3e-24 Identities = 59/205 (28%), Positives = 102/205 (49%), Gaps = 27/205 (13%) Query: 26 LQDINFTIKPNEIVTLIGPNGSGKSTIAKLITGIIKPTIGSVKRHPQLIVGYVP------ 79 L+ I+FTI+ EIV IGPNG+GK+T K+++G+++PT G V+ + G VP Sbjct: 37 LKGISFTIEKGEIVGFIGPNGAGKTTTLKILSGLLQPTSGEVR-----VAGLVPWKRRKK 91 Query: 80 ----------QKVTIENTLP----LSLMRFM-TLSMPSSRDDVLQILDRVNLIGKYNRNI 124 QK + LP L+ + L + + ++ + ++L + + Sbjct: 92 FLRRIGVVFGQKTQLWWDLPVIDSFYLLAAIYDLPPARFKKRLDELSELLDLEELLDTPV 151 Query: 125 KDLSGGEFQRALLAKALLRKPNLLVLDEPLQGIDFPGELSLYELITSVRQSTGCGILLIS 184 + LS G+ RA +A ALL +P +L LDEP G+D + ++ + + G +LL S Sbjct: 152 RQLSLGQRMRAEIAAALLHEPEILFLDEPTIGLDVVAQENIRNFLKEYNRERGTTVLLTS 211 Query: 185 HNLHMVMASTDTVICLNN-RICYQG 208 H + + A V+ ++ R+ Y G Sbjct: 212 HYMKDIEALARRVLVIDKGRLLYDG 236

RPSBLAST alignment for GI: 254780718 and conserved domain: cd03267