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mrpA

Gene
mrpA
Protein
Na(+)/H(+) antiporter subunit A
Organism
Bacillus pseudofirmus (strain OF4)
Length
805 amino acids
Function
Mnh complex is a Na(+)Li(+)/H(+) antiporter involved in Na(+) and/or Li(+) excretion and Na(+) resistance. Na(+)/H(+) antiport consumes a transmembrane electrical potential, and is thus inferred to be electrogenic. Does not transport K(+), Ca(2+) or Mg(2+).
Similarity
Belongs to the CPA3 antiporters (TC 2.A.63) subunit A family.
Mass
89.397 kDa
Sequence
MTVLHWATISPFLLAILIPFLYKYARRIHTGWFVLVLPLVLFIYFIQYLSITSTGGVVEHTIPWVPSLGINFTVFVDGLSLLFALLITGIGTLVILYSIFYLSKKTESLNNFYVYLLMFMGAMLGVVLSDNLIVLYVFWELTSLASSLLISYWFHREKSTYGAQKSMLITVFGGFAMLGGFSLLYVMTGTFSIRGIIENVDLVTSSELFLPAMILVLLGAFTKSAQFPFHIWLPDAMEAPTPVSAYLHSATMVKAGIYLVARLTPVFAGSAEWFWLLTGFGVVTLLWGSTSAVRQKDLKGILAFSTVSQLGLIMTLLGLGSAAIYFGESVDPAFYSFAIMAAIFHLINHATFKGSLFMTAGIIDHETGTRDIRKLGGLMAIMPVTFTVSLIGLASMAGLPPFNGFLSKEMFFTALLRATEMNAFNMETFGIIIVVLAWIASVFTFLYCLIMFFKTFTGKFKPENYDVKVHEAPIGMLISPVILGSLVIVFGFFPNILAYTIIEPAMQAVLPTVLADGELFHVNIYMWHGFNAELFMTMGVVAAGIILFLMMKNWAKAAFYMKERDPLNWFYDSSLSGVITGSQFVTRIQMTGLLRDYFAYMIVFMILLLGYTMFRYDAFAIDTTNVTEIAPYIWVITIVFIVATLSIPFINKRITAVVVVGVIGFLLALLFVVFRAPDLALTQLLIETVTVLLLMLAFYHLPELRKEEFKPRFNVLNLIISIGVGFFITAIALSSLALGNEAGIEPISQFFIENSKELAGGYNMVNVILVDFRGLDTMLEVLVLGIAALGVIALIKLRMTGREDV

Gene
mrpA
Protein
Na(+)/H(+) antiporter subunit A
Organism
Bacillus subtilis (strain 168)
Length
801 amino acids
Function
Mrp complex is a Na(+)/H(+) antiporter that is considered to be the major Na(+) excretion system in B.subtilis. Has a major role in Na(+) resistance and a minor role in Na(+)- and K(+)-dependent pH homeostasis as compared to TetB. MrpA may be the actual Na(+)/H(+) antiporter, although the six other Mrp proteins are all required for Na(+)/H(+) antiport activity and Na(+) resistance. MrpA is required for initiation of sporulation when external Na(+) concentration increases. Also transports Li(+) but not K(+), Ca(2+) or Mg(2+).
Similarity
Belongs to the CPA3 antiporters (TC 2.A.63) subunit A family.
Mass
89.531 kDa
Sequence
MQLLHLAILSPFLFAFIIPFLAKYAKRVHTGWFVLILPVLLFIYFLPMIRMTQSGETLRSVLEWIPSLGINFTVYIDGLGLLFALLITGIGSLVTLYSIFYLSKEKEQLGPFYVYLLMFMGAMLGVVLVDNVMVLYMFWELTSLSSFLLIGYWYKREKSRYGAAKSLLITVSGGLCMLGGFILLYLITDSFSIREMVHQVQLIAGHELFIPAMILILLGAFTKSAQFPFYIWLPDAMEAPTPVSAYLHSATMVKAGIYVIARFSPIFAFSAQWFWIVSLVGLFTMVWGSFHAVKQTDLKSILAFSTVSQLGMIISMLGVSAAALHYGHTEYYTVAAMAAIFHLINHATFKGSLFMAVGIIDHETGTRDIRKLGGLMAIMPITFTISLIGTFSMAGLPPFNGFLSKEMFFTSMLRVTHFDLFNVQTWGVLFPLFAWIGSVFTFIYSMKLLFKTFRGNYQPEQLEKQAHEAPVGMLVPPVILVALAVSLFFFPNILSYSLIEPAMNSIYPTLLDGHEKFHVHISQWHGVTTELLMTAGIVVIGTIGYLSLNKWKGIYKLFPSKLTLNRLYDKLLTMMEKGSYRVTKQYMTGFLRDYLLYIFAGFIILIGGAFAIKGGFSFKTEGMAKIGVYEIILTLVMISATVATVFARSRLTAIIALGVVGYTLALFFVIFRAPDLALTQLVIETISVALFLLCFYHLPKLRLKTKTRTFRMTNFIISLGVGVIVTLLGIASSSQRTKDSIASFFVKHSHDLGGGDNVVNVILVDFRGFDTMFEITVLTIAALGIYSMIKTKVKEEGKSGE

Gene
mrpA
Protein
Major MR/P fimbria protein
Organism
Proteus mirabilis (strain HI4320)
Length
175 amino acids
Function
Major structural component of mannose-resistant/proteus-like fimbriae of P.mirabilis.
Similarity
Belongs to the fimbrial protein family.
Mass
17.91 kDa
Sequence
MKLNKLALVLGLGLSVVAGSALAADQGHGTVKFVGSIIDAPCSITPDTENQTVPLGQISTAALKDGGRSNSRDFKISLENCTTETYKTVQTTFTGSEATEVLEGSLGIEGIAKNAAVVITDAGGKQIKLGTPSAAQNLRDGNNDLNFAAYLQGSASEAAVPGDFTAIATFALTYQ