>cd06285 PBP1_LacI_like_7 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=94.91 E-value=0.23 Score=29.56 Aligned_cols=123 Identities=13% Similarity=0.085 Sum_probs=77.5 Q ss_pred CCEEEEEEECHHHHHHHHHHHHHHHHHHHCCCCEEEEE-HHHHHHHHHH---HHHHHHHHHCCCCCCEEEEEEEEECCCC Q ss_conf 87179998031289999999999999998799555553-0014422699---9999863311378535665412000665 Q gi|254780346|r 5 IPHVLIIEARFYENLSAMLFEGCVNVLHSRAVQWSSIV-TPGVLEIPAA---VSMVMNAKTRSVTYDGIIVLGVVMRGKT 80 (149) Q Consensus 5 ~~kI~IV~s~~~~~i~~~ll~ga~~~l~~~~~~~~~i~-VPGa~EiP~a---~~~~~~~~~~~~~~D~vIaLG~VIkGeT 80 (149) T Consensus 114 ~~~i~~l~~~~~~~~~~~R~~Gf~~a~~~~~~~~~~~~i~~~~~~~~~~~~~~~~~l---~~~~~~~ai~~~-------- 182 (265) T cd06285 114 HRRIAVLAGPDYASTARDRLAGFRAALAEAGIEVPPERIVYSGFDIEGGEAAAEKLL---RSDSPPTAIFAV-------- 182 (265) T ss_pred CCCEEECCCCCCCCHHHHHHHHHHHHHHHCCCCCCHHHEECCCCCHHHHHHHHHHHH---HCCCCCCCEECC-------- T ss_conf 865875478877705999999999999986999875660136621556999999998---569998810037-------- Q ss_pred CHHHHHHHHHHHHHHHHHHHCCCCCEEEEECCCCHHHHHHHH------CCCCCCCHHHHHHHHHHHHH Q ss_conf 246789999999999999743997056542558899999950------65657456999999999999 Q gi|254780346|r 81 AHCDVIAHAVTRGLVDLSINGSLPIGNGIVVVDSEQQAFDRV------SPSHLDRGGCAARSALAMIE 142 (149) Q Consensus 81 ~H~e~I~~~v~~gl~~lsl~~~~PI~~gILt~~n~~QA~~R~------~~~~~nkG~eaa~Aal~mi~ 142 (149) T Consensus 183 --nD~~A~g~~~~l~~~g--~~iP~di~iigfd~~~~~~~~~p~LTti~q~~~~ig~~A~~~ll~~i~ 246 (265) T cd06285 183 --NDFAAIGVMGAARDRG--LRVPDDVALVGYNDIPLVARLPVPLTTVRSPFHQIGRTALRLLLETIA 246 (265) T ss_pred --CHHHHHHHHHHHHHCC--CCCCCCEEEEEECCHHHHHHCCCCCEEEECCHHHHHHHHHHHHHHHHC T ss_conf --8899999999999859--999998799998782899707899579972999999999999999847

HHsearch alignment for GI: 254780346 and conserved domain: cd06285