HHsearch alignment for GI: 254780323 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=95.84  E-value=0.16  Score=29.71  Aligned_cols=355  Identities=15%  Similarity=0.153  Sum_probs=175.1

Q ss_pred             HHHHHHCCCHHHHHHHHHHHHHHHHHHHHH----HHHHHHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCCCHHH
Q ss_conf             788651248544679999999999999999----9999996338999999999999999999999984210014652345
Q gi|254780323|r   51 DSLVVPHMGAEIISFVKLWCVFPSAILFTI----LYMKLSNILETEKLFYVVVSFFVSFFAIFAFLLYPYRDFLHPSPES  126 (491)
Q Consensus        51 d~l~~~~~g~e~lp~l~~~~~l~~s~~~~~----~y~~l~~~~~~~~l~~~~~~~f~~~~~~f~~~l~p~~~~~~~~~~~  126 (491)
T Consensus        21 ~~~Ffp~~dp-~~~~~~~~atFa~gFl~RP~Gg~~FG~~GDr~GRk~~L~~tl~~Mg~~T~~IGL--lPsY~~IG---~~   94 (413)
T TIGR00883        21 NTFFFPSGDP-LVALLATFATFAVGFLARPLGGIVFGHFGDRIGRKKTLVITLLMMGIGTVLIGL--LPSYATIG---IW   94 (413)
T ss_pred             HCCCCCCCCH-HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH--CCCHHHHH---HH
T ss_conf             0027898882-789999999999999998899999988632354699999999998576653122--47601177---89


Q ss_pred             HHHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHH-HH-HHHHHHHHHHHHHHHHHHH
Q ss_conf             555310101344578765557999999999999999999999999986409899899-99-9999899999999889999
Q gi|254780323|r  127 IRALASSWPYLKWFIYLAGKWSFALFYVFAELWGAVMINLMFWQFANRITKTEEATR-FY-ATFGLVGNVGLIFAGGIVK  204 (491)
Q Consensus       127 ~~~~~~~~~~~~~~~~~~~~w~~~~fYv~~e~~~~~vis~~FW~~~n~~f~~~qaKR-lf-~li~~g~~ig~i~gg~~~~  204 (491)
T Consensus        95 APiLL~~~Rl~QG-fs~GGE~gGaa~~~------------------~E~--A~~gkRG~~gSf~~~g~~~G~llA~l~~~  153 (413)
T TIGR00883        95 APILLLLARLIQG-FSLGGEWGGAALYL------------------VES--APPGKRGFYGSFQQVGAPVGLLLAALVVL  153 (413)
T ss_pred             HHHHHHHHHHHHH-HHHHHHHHHHHHHH------------------HHH--HCCCCHHHHHHHHHHHHHHHHHHHHHHHH
T ss_conf             9999999999843-56789999999999------------------975--00220378888999867899999999999


Q ss_pred             HHHHHCCCCC-HHHHHHH-HHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCC--CCCCCCHHHHHHHHHCCH--HHHHH
Q ss_conf             9963012322-4899999-9999999999999999840245223320000112--345788899999983096--79999
Q gi|254780323|r  205 TFSKLTNELM-IYYSMLT-LILSSILLMAVYRWMNLYVLTDPQQYSPKRGSVK--KKLKLSVLESLRMALNSK--YLGYL  278 (491)
Q Consensus       205 ~l~~~~~~~~-~~~~~~~-~~~~~~~~~~l~~~~~~~~~~~~~~~~~~~~~~~--~~~~~~~~~~~k~i~~s~--yL~~l  278 (491)
T Consensus       154 ~~s~~~~~~~P~~~WGWRiPFl~s~~l~~~gL~lR~~L~Et~~f~~~~~~~~~~~~~~~~p~~~~~~---~~~~~~~~~~  230 (413)
T TIGR00883       154 LLSYLLGDEAPLLEWGWRIPFLVSAVLVLIGLYLRRNLEETPVFEKAQEKHKTRTGKKRIPLAELLT---KHRKAFLLVL  230 (413)
T ss_pred             HHHHHHCCCCCHHHCCCHHHHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHHHHHCCCCCCHHHHHH---HCHHHHHHHH
T ss_conf             9999726652033103145899999999999998165645779999885212530376740999987---2229999999


Q ss_pred             HHHHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHH-------HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Q ss_conf             999999999999999999999998329989999999-------9999999999999999978999973167899999999
Q gi|254780323|r  279 VLLVICYGTAINLVEGPWKEKVRQLYPTQNSYAQFM-------GQFIQWTGIVTIVFMILGSNILKSFRWFTSAIITPLM  351 (491)
Q Consensus       279 ~~~v~~~~~~~tl~e~~~k~~~~~~~~~~~~~~af~-------g~~~~~v~i~tii~qll~~~ll~r~G~~~~l~i~Pi~  351 (491)
T Consensus       231 ~~~~~~~~~fY~~t~y~~~Y~~~~~~vsEAGYA~GLg~~~~~~~~~~~~~~i~~~~~~P~~G~LsDriGRR~~~i~~~~~  310 (413)
T TIGR00883       231 GLVIATTTTFYLITTYLPTYLTTTLGVSEAGYALGLGLSANSALLVLMLSLILFFVVIPLSGALSDRIGRRRVLIIFTVL  310 (413)
T ss_pred             HHHHHHHHHHHHHHHHHHHHHHHCCCCCHHHHHHHCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHH
T ss_conf             99999899999999999998865167514568773268766899999999999999999999997553653999999999


Q ss_pred             HHHHHHHHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHEECCHHHHHHHHHHHHHHH
Q ss_conf             99999999999841012346667873002079999999999999998763446466877752269767365777678887
Q gi|254780323|r  352 ILITGGGFFVFVIFEDALLPFTEDVIKLVPLALAVFLGSLQNVLSKATKYTMFDSTKEMAFIPLDDEFRTKGKAVVDVIG  431 (491)
Q Consensus       352 ~li~~~~ff~~~~~~~~~~~~~~~~~~~~~l~~~v~~~~i~~~~~k~~kYsl~~p~~E~l~~pl~~~~R~k~K~~iD~~~  431 (491)
T Consensus       311 ~~~~~~p~l~~l~~~~-----------y~~~~~-~~~~~~~~~~i~~~~~g~~~~~~~ElF---Pt~vR~~G~~l~y~~A  375 (413)
T TIGR00883       311 AALLAVPLLMALLDSG-----------YSPFTL-VFFLLLGLALIGGMYTGPMGSLLPELF---PTEVRYTGASLAYNLA  375 (413)
T ss_pred             HHHHHHHHHHHHHCCC-----------CCHHHH-HHHHHHHHHHHHHHHHHHHHHHHHHHC---CCCHHHHHHHHHHHHH
T ss_conf             9999999999874178-----------768999-999999999999987876999877233---4407899887999999


Q ss_pred             HHHHHHHHHHHHHHHHHHH
Q ss_conf             6466777999999999983
Q gi|254780323|r  432 GRMAKSGGAVIQSFIFMLF  450 (491)
Q Consensus       432 ~r~Gk~~gs~~~~~l~~~~  450 (491)
T Consensus       376 ~~~~GG~aP~iA~~L~~~~  394 (413)
T TIGR00883       376 GAIGGGLAPYIAAALVAIT  394 (413)
T ss_pred             HHHHHHHHHHHHHHHHHHC
T ss_conf             9986568999999999721