>TIGR01990 bPGM beta-phosphoglucomutase; InterPro: IPR010972 This model represents the beta-phosphoglucomutase enzyme which catalyses the interconversion of beta-D-glucose-1-phosphate and beta-D-glucose-6-phosphate. The 6-phosphate is capable of non-enzymatic anomerization (alpha to beta or vice versa) while the 1-phosphate is not. A separate enzyme is responsible for the isomerisation of the alpha anomers. Beta-D-glucose-1-phosphate results from the phosphorolysis of maltose (2.4.1.8 from EC), trehalose (2.4.1.64 from EC) or trehalose-6-phosphate (2.4.1.216 from EC). Alternatively, these reactions can be run in the synthetic direction to create the disaccharides. All sequenced genomes which contain a member of this family also appear to contain at least one putative maltose or trehalose phosphorylase. Three species, Lactococcus, Enterococcus and Neisseria appear to contain a pair of paralogous beta-PGM's. Beta-phosphoglucomutase is a member of the haloacid dehalogenase superfamily of hydrolase enzymes. These enzymes are characterised by a series of three catalytic motifs positioned within an alpha-beta (Rossman) fold . Beta-PGM contains an inserted alpha helical domain in between the first and second conserved motifs and thus is a member of subfamily IA of the superfamily , . The third catalytic motif comes in three variants, the third of which, containing a conserved DD or ED, is the only one found here as well as in several other related enzymes. The enzyme from Lactococcus lactis has been extensively characterised including a remarkable crystal structure which traps the pentacoordinate transition state . .

Probab=98.80  E-value=2.7e-08  Score=74.67  Aligned_cols=96  Identities=18%  Similarity=0.234  Sum_probs=62.7

Q ss_pred             CHHHHHHHHHHHHHCCCCEEECCCCCCCCCCCCHHHHHHHHHHHHHHH-CCCCCCCCCCCCHHHHHHHHHHHHHHCCCCC
Q ss_conf             179999999999730574031266432256630011048999988750-4765323477702589999986543148890
Q gi|254780847|r  138 KTEDYRMLLERFAHRHIPLICANPDIVANRGNKIIPCAGALALIYQQL-NGIVKMIGKPHLPIYEMAFKKISSLCNSFNK  216 (282)
Q Consensus       138 ~~~~~~~l~~~~~~~~~~~i~~N~D~~~p~~~~~~~~~G~~~~~~~~~-~g~~~~~GKP~~~~~~~a~~~l~~~~~~~~~  216 (282)
T Consensus        93 ~LPGi~~lL~~Lk~~~ikialASaS----kNA~~vLekL~L~~~Fd~IvDp~~~~~gKPdPEIFL~AA~~L-----Gv~P  163 (190)
T TIGR01990        93 VLPGIKSLLEDLKKKNIKIALASAS----KNAPTVLEKLELRDYFDAIVDPAEIKKGKPDPEIFLAAAEGL-----GVSP  163 (190)
T ss_pred             HCCCHHHHHHHHHHCCCCEEEEEHH----HHHHHHHHHHHHHHCCCEEECHHHHCCCCCCHHHHHHHHHHC-----CCCH
T ss_conf             0401899999999848948873023----448999998214220422645456217877867999999763-----8975


Q ss_pred             CCEEEECCCHHHHHHHHHHCCCCEEEE
Q ss_conf             008997388578899999769969997
Q gi|254780847|r  217 KRILAIGDGMDTDIKGALQSGIDALYV  243 (282)
Q Consensus       217 ~~~lmIGD~l~tDI~gA~~~G~~silV  243 (282)
T Consensus       164 ~~cigiEDA-~AGI~ai~~aGm~avGv  189 (190)
T TIGR01990       164 EECIGIEDA-QAGIEAIKAAGMFAVGV  189 (190)
T ss_pred             HHHHHEECH-HHHHHHHHHCCCEEEEC
T ss_conf             570101225-89999999759537721