HHsearch alignment for GI: 255764506 and conserved domain: cd00651

>cd00651 TFold Tunnelling fold (T-fold). The five known T-folds are found in five different enzymes with different functions: dihydroneopterin-triphosphate epimerase (DHNTPE), dihydroneopterin aldolase (DHNA) , GTP cyclohydrolase I (GTPCH-1), 6-pyrovoyl tetrahydropterin synthetase (PTPS), and uricase (UO,uroate/urate oxidase). They bind to substrates belonging to the purine or pterin families, and share a fold-related binding site with a glutamate or glutamine residue anchoring the substrate and a lot of conserved interactions. They also share a similar oligomerization mode: several T-folds join together to form a beta(2n)alpha(n) barrel, then two barrels join together in a head-to-head fashion to made up the native enzymes. The functional enzyme is a tetramer for UO, a hexamer for PTPS, an octamer for DHNA/DHNTPE and a decamer for GTPCH-1. The substrate is located in a deep and narrow pocket at the interface between monomers. In PTPS, the active site is located at the interface of thr
Probab=97.41  E-value=0.0036  Score=40.72  Aligned_cols=105  Identities=19%  Similarity=0.124  Sum_probs=83.1

Q ss_pred             CEEEECCEEEEEECC----CCEEEEEEEEEEEEECCCCC----------CCHHHHHHHHHHHHCCCCCHHHHHHHHHHHH
Q ss_conf             628961805877211----00234655789999638854----------3467799999998315426689999999999
Q gi|255764506|r   81 DMVLIKDISFFSYCE----HHILPIWGKIHLAYIPKKHV----------IGLSKLVRILEVYSRRLQIQERLTMQIAHAI  146 (205)
Q Consensus        81 ~mVvv~~I~f~S~CE----HHllPf~G~~~IaYiP~~~v----------iGlSKl~Riv~~~a~RlQ~QErlT~qIa~~l  146 (205)
T Consensus         2 d~i~l~~l~~~~~~G~~~~e~~~~q~~~vdV~~~~d~~~a~~~d~l~~t~~y~~v~~~v~~~~~~~~liE~lae~ia~~i   81 (122)
T cd00651           2 DGVRVKDLLKVTRLGFVTLERTVGQIFEVDVTLSWDGKKAAASDDVATDTVYNTIYRLAKEYVEGSQLIERLAEEIAYLI   81 (122)
T ss_pred             CEEEEECCEEEEEEECCHHHHHCCCEEEEEEEEEECCCCCCCCCCHHHCCCHHHHHHHHHHHHCCCCHHHHHHHHHHHHH
T ss_conf             88999587999997088899830987999999996373001558888738999999999999736326999999999999


Q ss_pred             HHHCC--CCCEEEEEEEEEEEEEECCCCCCCCEEEEEEEEE
Q ss_conf             97327--3847999994884252238355998599967774
Q gi|255764506|r  147 ESSTD--SKGVAVLIEGQHMCMSMRGIKRDGLTTVTTAFTG  185 (205)
Q Consensus       147 ~~~l~--~~gv~V~i~A~H~Cm~~RGv~~~~s~~~T~~~~G  185 (205)
T Consensus        82 ~~~f~~~~~~v~v~v~kp~a~~~~~~v~~~~~~~~~~i~r~  122 (122)
T cd00651          82 AEHFLSSVAEVKVEEKKPHAVIPDRGVFKPTDSPGVTIERG  122 (122)
T ss_pred             HHHHHCCCCEEEEEEECCCCCCCCCCCCCCCCCEEEEEECC
T ss_conf             98513545389999969999987556533346427999629