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CATH Superfamily 3.40.50.880

Class I glutamine amidotransferase (GATase) domain

The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was: waiting to be named.

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 26: Protein/nucleic acid deglycase HchA

There are 2 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
Protein deglycase. [EC: 3.5.1.124]
(1) An N(omega)-(1-hydroxy-2-oxopropyl)-[protein]-L-arginine + H(2)O = a [protein]-L-arginine + lactate. (2) An N(6)-(1-hydroxy-2-oxopropyl)-[protein]-L-lysine + H(2)O = a [protein]-L-lysine + lactate. (3) An S-(1-hydroxy-2-oxopropyl)-[protein]-L-cysteine + H(2)O = a [protein]-L-cysteine + lactate.
  • The enzyme, previously thought to be a glyoxalase, acts on glycated L-arginine, L-lysine, and L-cysteine residues within proteins that have been attacked and modified by glyoxal or 2-oxopropanal.
  • The attack forms hemithioacetal in the case of cysteines and aminocarbinols in the case of arginines and lysines.
  • The enzyme repairs the amino acids, releasing glycolate or lactate (70-80% (S)-lactate and 20-30% (R)-lactate), depending on whether the attacking agent was glyoxal or 2-oxopropanal, respectively.
 2890 A0A023YYV0 A0A023YYV0 A0A023YYV0 A0A023YYV0 A0A023YYV0 A0A023YYV0 A0A023YYV0 A0A023YYV0 A0A023YYV0 A0A023YYV0
(2880 more...)
D-lactate dehydratase. [EC: 4.2.1.130]
(R)-lactate = methylglyoxal + H(2)O.
  • The enzyme, described from the fungi Candida albicans and Schizosaccharomyces pombe, converts 2-oxopropanal to (R)-lactate in a single glutathione (GSH)-independent step.
  • The other known route for this conversion is the two-step GSH- dependent pathway catalyzed by EC 4.4.1.5 and EC 3.1.2.6.
 196 A0A037XZL3 A0A037XZL3 A0A037XZL3 A0A037XZL3 A0A037XZL3 A0A037XZL3 A0A037XZL3 A0A037XZL3 A0A037XZL3 A0A037XZL3
(186 more...)
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