Enzymes
| UniProtKB help_outline | 1 proteins |
| Enzyme class help_outline |
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Reaction participants Show >> << Hide
- Name help_outline nigerose Identifier CHEBI:7570 (CAS: 497-48-3) help_outline Charge 0 Formula C12H22O11 InChIKeyhelp_outline QIGJYVCQYDKYDW-NSYYTRPSSA-N SMILEShelp_outline OC[C@H]1O[C@H](O[C@@H]2[C@@H](O)C(O)O[C@H](CO)[C@H]2O)[C@H](O)[C@@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline phosphate Identifier CHEBI:43474 Charge -2 Formula HO4P InChIKeyhelp_outline NBIIXXVUZAFLBC-UHFFFAOYSA-L SMILEShelp_outline OP([O-])([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 992 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline β-D-glucose 1-phosphate Identifier CHEBI:57684 (Beilstein: 1688547) help_outline Charge -2 Formula C6H11O9P InChIKeyhelp_outline HXXFSFRBOHSIMQ-DVKNGEFBSA-L SMILEShelp_outline OC[C@H]1O[C@@H](OP([O-])([O-])=O)[C@H](O)[C@@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 9 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline D-glucose Identifier CHEBI:4167 (Beilstein: 1281604; CAS: 2280-44-6) help_outline Charge 0 Formula C6H12O6 InChIKeyhelp_outline WQZGKKKJIJFFOK-GASJEMHNSA-N SMILEShelp_outline OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 161 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:32523 | RHEA:32524 | RHEA:32525 | RHEA:32526 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Discovery of nigerose phosphorylase from Clostridium phytofermentans.
Nihira T., Nakai H., Chiku K., Kitaoka M.
A novel phosphorylase from Clostridium phytofermentans belonging to the glycoside hydrolase family (GH) 65 (Cphy1874) was characterized. The recombinant Cphy1874 protein produced in Escherichia coli showed phosphorolytic activity on nigerose in the presence of inorganic phosphate, resulting in the ... >> More
A novel phosphorylase from Clostridium phytofermentans belonging to the glycoside hydrolase family (GH) 65 (Cphy1874) was characterized. The recombinant Cphy1874 protein produced in Escherichia coli showed phosphorolytic activity on nigerose in the presence of inorganic phosphate, resulting in the release of D-glucose and β-D-glucose 1-phosphate (β-G1P) with the inversion of the anomeric configuration. Kinetic parameters of the phosphorolytic activity on nigerose were k(cat) = 67 s(-1) and K(m) = 1.7 mM. This enzyme did not phosphorolyze substrates for the typical GH65 enzymes such as trehalose, maltose, and trehalose 6-phosphate except for a weak phosphorolytic activity on kojibiose. It showed the highest reverse phosphorolytic activity in the reverse reaction using D-glucose as the acceptor and β-G1P as the donor, and the product was mostly nigerose at the early stage of the reaction. The enzyme also showed reverse phosphorolytic activity, in a decreasing order, on D-xylose, 1,5-anhydro-D-glucitol, D-galactose, and methyl-α-D-glucoside. All major products were α-1,3-glucosyl disaccharides, although the reaction with D-xylose and methyl-α-D-glucoside produced significant amounts of α-1,2-glucosides as by-products. We propose 3-α-D-glucosyl-D-glucose:phosphate β-D-glucosyltransferase as the systematic name and nigerose phosphorylase as the short name for this Cphy1874 protein. << Less
Appl. Microbiol. Biotechnol. 93:1513-1522(2012) [PubMed] [EuropePMC]