>cd06293 PBP1_LacI_like_11 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=95.61 E-value=0.22 Score=29.60 Aligned_cols=126 Identities=14% Similarity=-0.002 Sum_probs=79.2 Q ss_pred CCEEEEEEECHHHHHHHHHHHHHHHHHHHCCCCEEEEE-HHHHHHHHHHHHHHHHHHHCCCCCCEEEEEEEEECCCCCHH Q ss_conf 87179998031289999999999999998799555553-00144226999999863311378535665412000665246 Q gi|254780346|r 5 IPHVLIIEARFYENLSAMLFEGCVNVLHSRAVQWSSIV-TPGVLEIPAAVSMVMNAKTRSVTYDGIIVLGVVMRGKTAHC 83 (149) Q Consensus 5 ~~kI~IV~s~~~~~i~~~ll~ga~~~l~~~~~~~~~i~-VPGa~EiP~a~~~~~~~~~~~~~~D~vIaLG~VIkGeT~H~ 83 (149) T Consensus 116 ~~~I~~i~~~~~~~~~~~R~~G~~~a~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l~~~~~~~av~~~----------n 185 (269) T cd06293 116 HRRIAFVGGPDALISARERYAGYREALAEAHIPEVPEYVCFGDYTREFGRAAAAQLLARGDPPTAIFAA----------S 185 (269) T ss_pred CCEEEEECCCCCCCHHHHHHHHHHHHHHHCCCCCCCEEEEECCCCHHHHHHHHHHHHHCCCCCCEEEEC----------C T ss_conf 983899548877633999999999999976999993489955631135999999998479998589968----------8 Q ss_pred HHHHHHHHHHHHHHHHHCCCCCEEEEECCCCHHHHHHHHC------CCCCCCHHHHHHHHHHHHH Q ss_conf 7899999999999997439970565425588999999506------5657456999999999999 Q gi|254780346|r 84 DVIAHAVTRGLVDLSINGSLPIGNGIVVVDSEQQAFDRVS------PSHLDRGGCAARSALAMIE 142 (149) Q Consensus 84 e~I~~~v~~gl~~lsl~~~~PI~~gILt~~n~~QA~~R~~------~~~~nkG~eaa~Aal~mi~ 142 (149) T Consensus 186 D~~A~g~l~~l~~~g--i~vP~disiigfd~~~~~~~~~P~lTti~q~~~~ig~~A~~~Ll~~i~ 248 (269) T cd06293 186 DEIAIGLLEVLRERG--LSIPGDMSLVGFDDVGPAHLFAPPLTTIRQPVRELGRRAVALLLATLW 248 (269) T ss_pred HHHHHHHHHHHHHCC--CCCCCCEEEEEECCHHHHHHCCCCEEEEECCHHHHHHHHHHHHHHHHC T ss_conf 599999999999849--999996599988880999830898489965999999999999999845

HHsearch alignment for GI: 254780346 and conserved domain: cd06293