HHsearch alignment for GI: 254780967 and conserved domain: TIGR00883
>TIGR00883 2A0106 MFS transporter, metabolite:H+ symporter (MHS) family protein; InterPro: IPR004736 Recent genome-sequencing data and a wealth of biochemical and molecular genetic investigations have revealed the occurrence of dozens of families of primary and secondary transporters. Two such families have been found to occur ubiquitously in all classifications of living organisms. These are the ATP-binding cassette (ABC) superfamily and the major facilitator superfamily (MFS), also called the uniporter-symporter-antiporter family. While ABC family permeases are in general multicomponent primary active transporters, capable of transporting both small molecules and macromolecules in response to ATP hydrolysis the MFS transporters are single-polypeptide secondary carriers capable only of transporting small solutes in response to chemiosmotic ion gradients. Although well over 100 families of transporters have now been recognized and classified, the ABC superfamily and MFS account for nearly half of the solute transporters encoded within the genomes of microorganisms. They are also prevalent in higher organisms. The importance of these two families of transport systems to living organisms can therefore not be overestimated . The MFS was originally believed to function primarily in the uptake of sugars but subsequent studies revealed that drug efflux systems, Krebs cycle metabolites, organophosphate:phosphate exchangers, oligosaccharide:H1 symport permeases, and bacterial aromatic acid permeases were all members of the MFS. These observations led to the probability that the MFS is far more widespread in nature and far more diverse in function than had been thought previously. 17 subgroups of the MFS have been identified . Evidence suggests that the MFS permeases arose by a tandem intragenic duplication event in the early prokaryotes. This event generated a 2-transmembrane-spanner (TMS) protein topology from a primordial 6-TMS unit. Surprisingly, all currently recognized MFS permeases retain the two six-TMS units within a single polypeptide chain, although in 3 of the 17 MFS families, an additional two TMSs are found . Moreover, the well-conserved MFS specific motif between TMS2 and TMS3 and the related but less well conserved motif between TMS8 and TMS9 prove to be a characteristic of virtually all of the more than 300 MFS proteins identified. This entry represents the metabolite-H(+) symport (MHS) subfamily of the MFS. Members include citrate-proton symporters , alpha-ketoglutarate permease , shikimate transporters , and the proline/betaine transporter ProP .; GO: 0005215 transporter activity, 0006810 transport, 0016021 integral to membrane.
Probab=100.00 E-value=2.8e-33 Score=200.01 Aligned_cols=326 Identities=14% Similarity=0.121 Sum_probs=213.0
Q ss_pred CHHHHH-HHHHHHHHHHH---HHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHCCCCHHH--------HCCCCCCCC
Q ss_conf 988999-99999999999---999999999986508289999999999999998510011011--------100223210
Q gi|254780967|r 35 SNENYG-QHLISFYLIGY---GIAQIFYGPLSDRFGRKIVMMFGLVIHIISTFIMVTINSFTG--------MLCMRLIQG 102 (398)
Q Consensus 35 s~~~~~-~~~~s~~~~~~---~i~~~~~G~l~Dr~Grr~~l~~g~~~~~i~~~~~~~a~~~~~--------l~~~r~l~G 102 (398)
T Consensus 28 ~dp~~~~~~~~atFa~gFl~RP~Gg~~FG~~GDr~GRk~~L~~tl~~Mg~~T~~IGLlPsY~~IG~~APiLL~~~Rl~QG 107 (413)
T TIGR00883 28 GDPLVALLATFATFAVGFLARPLGGIVFGHFGDRIGRKKTLVITLLMMGIGTVLIGLLPSYATIGIWAPILLLLARLIQG 107 (413)
T ss_pred CCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHH
T ss_conf 88278999999999999999889999998863235469999999999857665312247601177899999999999843
Q ss_pred CCCCCCCCCCHHHHHHHHCCCCCCCCCCCCCCEECCCCCCCCCCC--------CCC-CCCCCCCCHHHHHHHHHHHHHHH
Q ss_conf 011111110001233210001111221223310001111111111--------222-21111110145678888877778
Q gi|254780967|r 103 IGGAAPRIITISIIRDIYDGRDMAKVLSIAMMIFMIMPILAPSIG--------QAT-VALSGGWIGIFVCMGVITTFITL 173 (398)
Q Consensus 103 ~g~~~~~~~~~a~i~~~~~~~~~~~~~~~~~~~~~~g~~igp~ig--------~~l-~~~~~gWr~~f~~~~~~~~~~~~ 173 (398)
T Consensus 108 fs~GGE~gGaa~~~~E~A~~gkRG~~gSf~~~g~~~G~llA~l~~~~~s~~~~~~~P~-~~WGWRiPFl~s~~l-~~~gL 185 (413)
T TIGR00883 108 FSLGGEWGGAALYLVESAPPGKRGFYGSFQQVGAPVGLLLAALVVLLLSYLLGDEAPL-LEWGWRIPFLVSAVL-VLIGL 185 (413)
T ss_pred HHHHHHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCH-HHCCCHHHHHHHHHH-HHHHH
T ss_conf 5678999999999997500220378888999867899999999999999972665203-310314589999999-99999
Q ss_pred HHHHHCCCCCCHHHHCCCCCC---CCCCCCCCCCCCCH--HHHHHHHHHHHHHCCHHHHHHHHHHHHHHCC---------
Q ss_conf 887616788640221011111---12333100000000--0256777887631001468887654554315---------
Q gi|254780967|r 174 WYYIRFPETLDPRDVRPLNLY---AILHSFSLIFKHRA--STLYNIANSLTMGAILGFVNSSQQIYVGIYQ--------- 239 (398)
Q Consensus 174 ~~~~~~pet~~~~~~~~~~~~---~~~~~~~~~~~~~~--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~--------- 239 (398)
T Consensus 186 ~lR~~L~Et~~f~~~~~~~~~~~~~~~~p~~~~~~~~~~~~~~~~~~~~~~~~~fY~~t~y~~~Y~~~~~~vsEAGYA~G 265 (413)
T TIGR00883 186 YLRRNLEETPVFEKAQEKHKTRTGKKRIPLAELLTKHRKAFLLVLGLVIATTTTFYLITTYLPTYLTTTLGVSEAGYALG 265 (413)
T ss_pred HHHCCCCCCHHHHHHHHHHHHHHCCCCCCHHHHHHHCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCHHHHHHH
T ss_conf 98165645779999885212530376740999987222999999999999899999999999998865167514568773
Q ss_pred --CCCC-HHHHHHHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCCHHHHHHHHHHHHHH
Q ss_conf --3110-1588998865767788999998500156512468877888999999998732577764037998998999999
Q gi|254780967|r 240 --LGNL-FPIAFAVGGFAMSIASFINSRLVEKFGIRRVSHYSLLIFFMITGSWLLVQITSNHPIHLLIFIAFFFLASFQF 316 (398)
Q Consensus 240 --~~~~-~~~~~~~~~~~~~~~~~~~~~l~~r~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 316 (398)
T Consensus 266 Lg~~~~~~~~~~~~~~i~~~~~~P~~G~LsDriGRR~~~i~~~~~~~~~-~~p~l~~l~~~~y~~~~~~~~~~~~~~~i~ 344 (413)
T TIGR00883 266 LGLSANSALLVLMLSLILFFVVIPLSGALSDRIGRRRVLIIFTVLAALL-AVPLLMALLDSGYSPFTLVFFLLLGLALIG 344 (413)
T ss_pred CCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHH-HHHHHHHHHCCCCCHHHHHHHHHHHHHHHH
T ss_conf 2687668999999999999999999999975536539999999999999-999999874178768999999999999999
Q ss_pred HHHHHHHHHHHHHHHH-HHHHHHHHHHHHHH-HHHHHHHHHHHHHHHHH
Q ss_conf 9999999999985346-67699999999999-99999999999999831
Q gi|254780967|r 317 GLINSNFSSISMEPFS-HLAGTASSIFGFIN-TVISTILGIIIGQSFNG 363 (398)
Q Consensus 317 ~~~~~~~~~~~~~~~~-~~~G~a~~l~~~~~-~~~~~~~~~~~g~~~~~ 363 (398)
T Consensus 345 ~~~~g~~~~~~~ElFPt~vR~~G~~l~y~~A~~~~GG~aP~iA~~L~~~ 393 (413)
T TIGR00883 345 GMYTGPMGSLLPELFPTEVRYTGASLAYNLAGAIGGGLAPYIAAALVAI 393 (413)
T ss_pred HHHHHHHHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
T ss_conf 9878769998772334407899887999999998656899999999972