HHsearch alignment for GI: 254781049 and conserved domain: cd06275

>cd06275 PBP1_PurR Ligand-binding domain of purine repressor, PurR, which functions as the master regulatory protein of de novo purine nucleotide biosynthesis in Escherichia coli. Ligand-binding domain of purine repressor, PurR, which functions as the master regulatory protein of de novo purine nucleotide biosynthesis in Escherichia coli. This dimeric PurR belongs to the LacI-GalR family of transcription regulators and is activated to bind to DNA operator sites by initially binding either of high affinity corepressors, hypoxanthine or guanine. PurR is composed of two functional domains: aan 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 purine transcription repressor undergoes a
Probab=91.65  E-value=1.1  Score=24.24  Aligned_cols=83  Identities=14%  Similarity=0.252  Sum_probs=54.9

Q ss_pred             CCCCHHHHHHHHHHHH-CCCCCCEEEEECCCCHHHHHHHHHHHHHHHHHCCCCCC---EEEECCCCCHHHHHHHHHHCCC
Q ss_conf             8889899999999986-19986589996358613289999999999997299987---9997489858999999997699
Q gi|254781049|r  301 GGADQDKVAAAFKIIT-SDSSVKGILINIFGGIMRCDVLVKGILSAVKEVKINIP---LVMRLEGANVDIGNRLIAESGL  376 (398)
Q Consensus       301 G~a~~e~~~~a~~~il-~~~~vk~iliNifGGI~~cd~vA~gii~a~~~~~~~~p---ivvRl~Gtn~~~g~~il~~~g~  376 (398)
T Consensus       158 ~~~~~~~~~~~~~~~l~~~~~~~aii-------~~~d~~A~g~~~~l~~~gi~vP~di~vvgfd~~~~~---~~~~-p~l  226 (269)
T cd06275         158 GDFECEGGYEAMQRLLAQPKRPTAVF-------CGNDLMAMGALCAAQEAGLRVPQDLSIIGYDDIELA---RYFS-PPL  226 (269)
T ss_pred             CCCCHHHHHHHHHHHHHHCCCCCEEE-------CCCHHHHHHHHHHHHHCCCCCCCCCEEEEECCHHHH---HHCC-CCE
T ss_conf             77776889999999997089966123-------187499999999999808878998679987787999---8338-985


Q ss_pred             CEEEECCHHHHHHHHHHHH
Q ss_conf             5899499899999999985
Q gi|254781049|r  377 NVITAIDLDDAAQKIVHAV  395 (398)
Q Consensus       377 ~~~~~~~~~~A~~~~v~~~  395 (398)
T Consensus       227 tt-i~q~~~~~g~~a~~~L  244 (269)
T cd06275         227 TT-IHQPKDRLGELAVNML  244 (269)
T ss_pred             EE-EECCHHHHHHHHHHHH
T ss_conf             89-9619999999999999