The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
TolB, C-terminal domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 33097: Quinoprotein glucose dehydrogenase B

There are 1 EC terms in this cluster

Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.

EC Term Annotations Evidence
Quinoprotein glucose dehydrogenase (PQQ, quinone). [EC: 1.1.5.2]
D-glucose + ubiquinone = D-glucono-1,5-lactone + ubiquinol.
  • Integral membrane protein containing PQQ as prosthetic group.
  • It also contains bound ubiquinone and Mg(2+) or Ca(2+).
  • Electron acceptor is membrane ubiquinone but usually assayed with phenazine methosulfate.
  • Like in all other quinoprotein alcohol dehydrogenases the catalytic domain has an 8-bladed 'propeller' structure.
  • It occurs in a wide range of bacteria.
  • Catalyzes a direct oxidation of the pyranose form of D-glucose to the lactone and thence to D-gluconate in the periplasm.
  • Oxidizes other monosaccharides including the pyranose forms of pentoses.
  • Formerly EC 1.1.99.17.
107 A0A009G1A6 A0A009G1M5 A0A009HNA7 A0A009I4C8 A0A009J4K9 A0A009JJN2 A0A009NDQ1 A0A009PRF1 A0A009QV01 A0A009RAY8
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