>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=95.33 E-value=0.15 Score=30.71 Aligned_cols=126 Identities=16% Similarity=0.124 Sum_probs=76.2 Q ss_pred CCEEEEEEECHHHHHHHHHHHHHHHHHHHCCCCEEE-EEHHHHHHHHHHHHHHHHHHHCCCCCCEEEEEEEEECCCCCHH Q ss_conf 871799980312899999999999999987995555-5300144226999999863311378535665412000665246 Q gi|254780346|r 5 IPHVLIIEARFYENLSAMLFEGCVNVLHSRAVQWSS-IVTPGVLEIPAAVSMVMNAKTRSVTYDGIIVLGVVMRGKTAHC 83 (149) Q Consensus 5 ~~kI~IV~s~~~~~i~~~ll~ga~~~l~~~~~~~~~-i~VPGa~EiP~a~~~~~~~~~~~~~~D~vIaLG~VIkGeT~H~ 83 (149) T Consensus 115 ~~~i~~i~~~~~~~~~~~R~~Gf~~a~~~~g~~~~~~~~~~~~~~~~~~~~~~~~~l~~~~~~~ai~~~----------n 184 (265) T cd06290 115 HRRIAHITGPRGHIDARDRLAGYRKALEEAGLEVQPDLIVQGDFEEESGLEAVEELLQRGPDFTAIFAA----------N 184 (265) T ss_pred CCCEEEECCCCCCHHHHHHHHHHHHHHHHCCCCCCHHHEECCCCCCHHHHHHHHHHHHHCCCCCCCEEC----------C T ss_conf 986556048878701999999999999986999988883416677178999999999719998842105----------7 Q ss_pred HHHHHHHHHHHHHHHHHCCCCCEEEEECCCCHHHHHHHH------CCCCCCCHHHHHHHHHHHHH Q ss_conf 789999999999999743997056542558899999950------65657456999999999999 Q gi|254780346|r 84 DVIAHAVTRGLVDLSINGSLPIGNGIVVVDSEQQAFDRV------SPSHLDRGGCAARSALAMIE 142 (149) Q Consensus 84 e~I~~~v~~gl~~lsl~~~~PI~~gILt~~n~~QA~~R~------~~~~~nkG~eaa~Aal~mi~ 142 (149) T Consensus 185 D~~A~g~~~~~~~~g--~~vP~di~vigfD~~~~~~~~~p~ltti~~~~~~~G~~A~~~L~~~i~ 247 (265) T cd06290 185 DQTAYGARLALYRRG--LRVPEDVSLIGFDDLPLSAYTTPPLTTVRQPIEEMGQIAARALLALIN 247 (265) T ss_pred HHHHHHHHHHHHHHC--CCCCCCEEEEEECCHHHHHHCCCCEEEEEECHHHHHHHHHHHHHHHHC T ss_conf 899999999999809--999998799999987899732898289995999999999999999975

HHsearch alignment for GI: 254780346 and conserved domain: cd06290