HHsearch alignment for GI: 254780960 and conserved domain: TIGR01672

>TIGR01672 AphA HAD superfamily (subfamily IIIB) phosphatase, TIGR01672; InterPro: IPR010025 This family of proteins is a member of the IIIB subfamily (IPR001001 from INTERPRO) of the haloacid dehalogenase (HAD) superfamily of hydrolases. All characterised members of subfamily III and most characterised members of the HAD superfamily are phosphatases. HAD superfamily phosphatases contain active site residues in several conserved catalytic motifs , all of which are found conserved in this family. AphA is a periplasmic acid phosphatase of Escherichia coli belonging to class B bacterial phosphatases , which is part of the DDDD superfamily of phosphohydrolases. The crystal structure of AphA has been determined at 2.2A and its resolution extended to 1.7A. Despite the lack of sequence homology, the AphA structure reveals a haloacid dehalogenase-like fold. This finding suggests that this fold could be conserved among members of the DDDD superfamily of phosphohydrolases. The active enzyme is a homotetramer built by using an extended N-terminal arm intertwining the four monomers. The active site of the native enzyme hosts a magnesium ion, which can be replaced by other metal ions. The structure explains the non-specific behaviour of AphA towards substrates, while a structure-based alignment with other phosphatases provides clues about the catalytic mechanism . ; GO: 0003993 acid phosphatase activity, 0030288 outer membrane-bounded periplasmic space.
Probab=95.61  E-value=0.038  Score=31.92  Aligned_cols=172  Identities=17%  Similarity=0.136  Sum_probs=82.2

Q ss_pred             HHHHHCCCCEEE-----CCCCCCCCCEEEECCCEE-EEECCCCHHHHHHHHCCCHHHHHHHHHHHCCCCCHHHHHHHHHH
Q ss_conf             840216863462-----145555344487227502-65245200278874122327788876520244100123455687
Q gi|254780960|r   61 SIIADKPIDLII-----HRHENRRKNLLIADMDST-MIEQECIDELADLIGIKEKVSLITARAMNGEIPFQDSLRERISL  134 (297)
Q Consensus        61 ~~~~~~~~d~~~-----~~~~~~~~~l~~~d~d~t-li~~~~l~~~a~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  134 (297)
T Consensus        40 ~~~~qa~i~wiSvaqI~~SLeG~~Pi~VsFDIDDTv~LFsSp-~F---~~Gk~~f--------sPgs~---DyLknq~F-  103 (248)
T TIGR01672        40 RLAEQAAIHWISVAQIESSLEGKKPIAVSFDIDDTVLLFSSP-GF---YRGKKKF--------SPGSE---DYLKNQKF-  103 (248)
T ss_pred             HHHHHCCEEEEEHHHHHHHHCCCCCCEEECCCCCEEEEECCC-CC---CCCCEEC--------CCCCC---CCCCCHHH-
T ss_conf             897509825875878886651798823435513303231264-20---0573012--------88842---22468136-


Q ss_pred             HHHHHHHHHHHHHHHHCCCCCCHHHHHHHHHHCCCEEEEEECCCHHHHHHHHHHHCCCHHHHHCCCCHH-HCCCCCCCCC
Q ss_conf             642004568988742113454338999999841986999816723422322655086413431010000-0000001563
Q gi|254780960|r  135 FKGTSTKIIDSLLEKKITYNPGGYELVHTMKQNGASTLLVTGGFSIFARFIAQHLGFDQYYANRFIEKD-DRLTGQVMEP  213 (297)
Q Consensus       135 ~~~~~~~~~~~~~~~~~~~~~~~~~~i~~l~~~g~~v~iisg~~~~~~~~ia~~lgi~~~~a~~~~~~~-~~~~~~~~~~  213 (297)
T Consensus       104 W----~~vn~g~-D~~SIPKe~A~qLI~MH~~RGD~i~F~TGRt~gsmykkGk~d~v~k~Lak~F~i~~tnm~pv~---f  175 (248)
T TIGR01672       104 W----EKVNKGG-DKYSIPKEVAKQLIDMHQKRGDKIFFVTGRTAGSMYKKGKVDKVAKILAKDFKIDKTNMNPVE---F  175 (248)
T ss_pred             H----HHHHCCC-CCCCCCHHHHHHHHHHHHHHCCEEEEEECCCCCCCCCCCCCCCCCHHHHHHCCCCCCCCCCEE---E
T ss_conf             8----9986578-877775789999999887609879998468764433256214333003530687667886335---3


Q ss_pred             CCCHHHHH--HHHHHHHHHHCCCCCEEEEEECCCCHHHHHHHCCC-EEEE
Q ss_conf             10521138--87753233103776679999789234889984893-1898
Q gi|254780960|r  214 IIDGTAKS--QILLEAIQKLQINPEDTIAVGDGNNDLDMLRVAGY-GVAF  260 (297)
Q Consensus       214 ~~~~~~k~--~~~~~l~~~~~~~~~~v~avGDg~ND~pmL~~Agv-GVA~  260 (297)
T Consensus       176 ~Gdk~~~P~~y~Kt~~i~~~~----~~IhYGDSD~Di~AAkeaGaRgIRi  221 (248)
T TIGR01672       176 AGDKERKPYKYDKTQYIKDKK----VRIHYGDSDDDILAAKEAGARGIRI  221 (248)
T ss_pred             ECCCCCCCCCCCCCHHHHHCC----CEEEECCCHHHHHHHHHCCCCCEEE
T ss_conf             178888885434308987588----6488758856889998678885224