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- ***********************************
- * D-amino acid oxidases signature *
- ***********************************
-
- D-amino acid oxidase (EC 1.4.3.3) (DAO) is an FAD flavoenzyme that catalyzes
- the oxidation of neutral and basic D-amino acids into their corresponding keto
- acids. DAOs have been characterized and sequenced in fungi and vertebrates
- where they are known to be located in the peroxisomes.
-
- D-aspartate oxidase (EC 1.4.3.1) [1] is an enzyme, structurally related to
- DAO, which catalyzes the same reaction but is active only toward dicarboxylic
- D-amino acids.
-
- In DAO, a conserved histidine has been shown [2] to be important for the
- enzyme's catalytic activity. We have used the conserved region around this
- residue as a signature pattern for these enzymes.
-
- -Consensus pattern: [LIVM](2)-H-[NH]-Y-G-x-[GSA](2)-x-G-x(5)-G-x-A
- [H is a probable active site residue]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: October 1993 / Pattern and text revised.
-
- [ 1] Negri A., Ceciliani F., Tedeschi G., Simonic T., Ronchi S.
- J. Biol. Chem. 267:11865-11871(1992).
- [ 2] Miyano M., Fukui K., Watanabe F., Takahashi S., Tada M., Kanashiro M.,
- Miyake Y.
- J. Biochem. 109:171-177(1991).
-