>cd06550 TM_ABC_iron-siderophores_like Transmembrane subunit (TM), of Periplasmic Binding Protein (PBP)-dependent ATP-Binding Cassette (ABC) transporters involved in the uptake of siderophores, heme, vitamin B12, or the divalent cations Mg2+ and Zn2+. PBP-dependent ABC transporters consist of a PBP, two TMs, and two cytoplasmic ABCs, and are mainly involved in importing solutes from the environment. The solute is captured by the PBP which delivers it to a gated translocation pathway formed by the two TMs. The TMs are bundles of alpha helices that transverse the cytoplasmic membrane multiple times. The two ABCs bind and hydrolyze ATP and drive the transport reaction. Each TM has a prominent cytoplasmic loop which contacts an ABC and represents a conserved motif. The two TMs form either a homodimer (e.g. in the case of the BtuC subunits of the Escherichia coli BtuCD vitamin B12 transporter), a heterodimer (e.g. the TroC and TroD subunits of the Treponema pallidum general transition metal

Probab=100.00 E-value=6.8e-36 Score=214.18 Aligned_cols=248 Identities=24% Similarity=0.401 Sum_probs=217.6 Q ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCH-----HHHHHHHHHHHHHHHHHHHC--CC Q ss_conf 899999999999998788999999879996435899999999999995003-----66799999999999986310--35 Q gi|254780719|r 6 FIRALFSGIGIVLSTGPLGCFIIWQRIAYFGDTIAHSALLGVALSLIFQLP-----LTICIFMIATLTSLVLLQIQ--KN 78 (260) Q Consensus 6 ~~~all~~~~~~~~~~~lG~~vv~rr~s~~~~alsH~a~~Gial~~~l~~~-----~~~ga~~~~~l~al~i~~l~--~~ 78 (260) T Consensus 1 il~a~l~G~~L~~aG~~~Q~~~rN~la~p~~lGis~gA~lg~~l~~ll~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 80 (261) T cd06550 1 LLAALLVGAALAVSGAILQSLTRNRLASPSILGISHGALLGVVLALLLGIGLSNYALGAFAFAGALAIALLVLLLASRGG 80 (261) T ss_pred CHHHHHHHHHHHHHHHHHHHHCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCC T ss_conf 99999999999999999999808988796085899999999999999987777899999999999999999999997379 Q ss_pred CCCHHHHHHHHHHHHHHHHHHHHHHH-CCCCHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCHH Q ss_conf 76504569999999999999999962-13200133344333244228767058999989999999842456654128889 Q gi|254780719|r 79 EALSSDAILGVITHSTISLALVILSF-MKWVNTDLTSFLFGDILAVNTTDILLIWGIGFLNIMILFKIWKPLLATTVNYE 157 (260) Q Consensus 79 ~~~~~da~igi~~s~~~alg~llls~-~~~~~~~l~~~LfG~il~v~~~dv~~~~~~~~~~~~~l~~~~r~l~~~~fD~~ 157 (260) T Consensus 81 ~~~~~liL~Gi~is~~~~a~~~~l~~~~~~~~~~~~~wl~Gs~~~~~~~~~~~~~~~~~i~~~~~~~~~~~l~~l~~~~~ 160 (261) T cd06550 81 LSPSKLILIGIVLSAFFSAGVILISLLSDDSLQDLNIWLFGSILGVTWEDLLILLIILLLVLLLLLLLSRKLNLLTFDED 160 (261) T ss_pred CCHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCHH T ss_conf 87399999999999999999999987476768999999835645787999999999999999999999999999978989 Q ss_pred HHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHH- Q ss_conf 9998089810677699999999999999998899999999999999997419989999999999999999999999995- Q gi|254780719|r 158 LAKAEGMQPEKIKLIFIMITSLMISVSIKFIGITLITSLLILPTVTARRFSTSPENMAILATIIGILGIIIGLYGSLIF- 236 (260) Q Consensus 158 ~A~~~Gi~v~~~~~l~~~l~al~v~~~v~~vG~llv~allv~Paa~A~~l~~~~~~~~~~s~~~g~~~~~~G~~lS~~~- 236 (260) T Consensus 161 ~A~~lGi~v~~~~~~~l~l~~~~~~~~v~~vG~i~fvG-Li~P~iar~l~~~~~~~~l~~s~l~G~~l~~~~d~i~r~~~ 239 (261) T cd06550 161 LAKSLGINVNLLRLLLLLLVALLVVAAVALVGVILFVG-LIAPHLARRLFGRSHRYLLPLSALLGAILLLLGDLLSRTLL 239 (261) T ss_pred HHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH-HHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHCC T ss_conf 98876996999999999999999999999847999999-99999999984888443999999999999999999998836 Q ss_pred --CCCCHHHHHHHHHHHHHH Q ss_conf --588089999999999999 Q gi|254780719|r 237 --DTPSGPSIIITSLFLFIL 254 (260) Q Consensus 237 --~lp~g~~Iv~~~~~~f~~ 254 (260) T Consensus 240 ~~~~p~g~v~~liG~p~fl~ 259 (261) T cd06550 240 PSELPVGPVTALLGAPYFLY 259 (261) T ss_pred CCCCCHHHHHHHHHHHHHHH T ss_conf 65640999999999999998

HHsearch alignment for GI: 254780719 and conserved domain: cd06550