>cd06290 PBP1_LacI_like_9 Ligand-binding domain of uncharacterized DNA-binding regulatory proteins that are members of the LacI-GalR family of bacterial transcription repressors. This group includes the ligand-binding domain of uncharacterized DNA-binding regulatory proteins that are members of the LacI-GalR family of bacterial transcription repressors. The LacI-GalR family repressors are composed of two functional domains: an N-terminal HTH (helix-turn-helix) domain, which is responsible for the DNA-binding specificity, and a C-terminal ligand-binding domain, which is homologous to the sugar-binding domain of ABC-type transport systems that contain the type I periplasmic binding protein-like fold. As also observed in the periplasmic binding proteins, the C-terminal domain of the bacterial transcription repressor undergoes a conformational change upon ligand binding which in turn changes the DNA binding affinity of the repressor.

Probab=93.72 E-value=0.5 Score=25.44 Aligned_cols=180 Identities=10% Similarity=0.104 Sum_probs=95.4 Q ss_pred HHHHHHHHCCCCEEEECCEEEECCC-CCCCCCCCCCCCEEEEECHHHHHHHHHHHCCCCCEECCCHHHHHHHHHHCCCCC Q ss_conf 9999999879829994210000078-520016447587999848467999886200136300041589999764101223 Q gi|255764510|r 14 RTQEKIQKMGYIPVMMPLSYFIHDR-ESVFLAMQQSYGAIAITSSESLSTLPANFCRHTPIFAIGEASACLARQKGFTQI 92 (232) Q Consensus 14 ~~~~~L~~~G~~~i~~Pli~i~~~~-~~~~~~~~~~~d~iiftS~~av~~~~~~~~~~~~~~~vg~~t~~~~~~~~~~~~ 92 (232) T Consensus 20 gie~~~~~~gy~~ll~~s~~~~~~e~~~i~~l~~~~vdGiIi~~~~~~~~~~~~~~~~iPvV~i~~~~~----~~~~~~V 95 (265) T cd06290 20 GMERGLNGSGYSPIIATGHWNQSRELEALELLKSRRVDALILLGGDLPEEEILALAEEIPVLAVGRRVP----GPGAASI 95 (265) T ss_pred HHHHHHHHCCCEEEEEECCCCHHHHHHHHHHHHHCCCCEEEEECCCCCHHHHHHHHCCCCEEEECCCCC----CCCCCEE T ss_conf 999999986998999979999799999999999659998999268888599999855999899825678----8999989 Q ss_pred CCCCCCHHHHHHHHHHHHHCCCCCCEEEEECCCCCCCC-------HHHHHHHCCCEEEEEEEEEECCCCCC-HHHHHHHH Q ss_conf 54445456789998642201277753897215675620-------14689846982567688750468999-88999862 Q gi|255764510|r 93 FHGKDNSINLAKIIVEQKVLFTPQKPLIYLGGKPRNFH-------FEDYLIEHKIPLRVIDCYYSQDIAYP-ETTMKNLL 164 (232) Q Consensus 93 ~~~~~~~~~~~~ll~~~~~~~~~~~~vl~~~g~~~~~~-------l~~~L~~~g~~v~~~~vY~~~~~~~~-~~~~~~~~ 164 (232) T Consensus 96 ~~---Dn~~~~~~~~~~L~~-~G~~~i~~i~~~~~~~~~~~R~~Gf~~a~~~~g~~~~~~~~~~~~~~~~~~~~~~~~~l 171 (265) T cd06290 96 AV---DNFQGGYLATQHLID-LGHRRIAHITGPRGHIDARDRLAGYRKALEEAGLEVQPDLIVQGDFEEESGLEAVEELL 171 (265) T ss_pred EE---CHHHHHHHHHHHHHH-HCCCCEEEECCCCCCHHHHHHHHHHHHHHHHCCCCCCHHHEECCCCCCHHHHHHHHHHH T ss_conf 84---779999999999998-29986556048878701999999999999986999988883416677178999999999 Q ss_pred ---CCCCEEEEECHHHHHHHHHHCCHHHC----CEEEEECCHHH Q ss_conf ---37838998078999999971354405----80399718899 Q gi|255764510|r 165 ---QNADAILFYARSSVLYFFSLPLPAKI----SAAFLCLSNNI 201 (232) Q Consensus 165 ---~~~d~i~f~S~~~v~~~~~~~~~~~~----~~~~~~ig~~t 201 (232) T Consensus 172 ~~~~~~~ai~~~nD~~A~g~~~~~~~~g~~vP~di~vigfD~~~ 215 (265) T cd06290 172 QRGPDFTAIFAANDQTAYGARLALYRRGLRVPEDVSLIGFDDLP 215 (265) T ss_pred HHCCCCCCCEECCHHHHHHHHHHHHHHCCCCCCCEEEEEECCHH T ss_conf 71999884210578999999999998099999987999999878

HHsearch alignment for GI: 255764510 and conserved domain: cd06290