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- **********************************
- * GMC oxidoreductases signatures *
- **********************************
-
- Six different FAD flavoproteins oxidoreductases have been found [1,2] to be
- evolutionary related. These enzymes, which are called 'GMC oxidoreductases',
- are listed below.
-
- - Glucose oxidase (EC 1.1.3.4) (GOX) from Aspergillus niger.
- Reaction catalyzed: glucose + oxygen -> delta-gluconolactone + hydrogen
- peroxide.
- - Methanol oxidase (EC 1.1.3.13) (MOX) from fungi.
- Reaction catalyzed: methanol + oxygen -> acetaldehyde + hydrogen peroxide.
- - Choline dehydrogenase (EC 1.1.99.1) (CHD) from Escherichia coli.
- Reaction catalyzed: choline + unknown acceptor -> betaine acetaldehyde +
- reduced acceptor.
- - Glucose dehydrogenase (GLD) (EC 1.1.99.10) from Drosophila.
- Reaction catalyzed: glucose + unknown acceptor -> delta-gluconolactone +
- reduced acceptor.
- - Cholesterol oxidase (CHOD) (EC 1.1.3.6) from Brevibacterium sterolicum and
- Streptomyces strain SA-COO.
- Reaction catalyzed: cholesterol + oxygen -> cholest-4-en-3-one + hydrogen
- peroxide.
- - AlkJ [3], an alcohol dehydrogenase from Pseudomonas oleovorans, which
- converts aliphatic medium-chain-length alcohols into aldehydes.
-
- These enzymes are proteins of size ranging from 556 (CHD) to 664 (MOX) amino
- acid residues which share a number of regions of sequence similarities. One of
- these regions, located in the N-terminal section, corresponds to the FAD ADP-
- binding domain. The function of the other conserved domains is not yet known;
- we have selected two of these domains as signature patterns. The first one is
- located in the N-terminal section of these enzymes, about 50 residues after
- the ADP-binding domain, while the second one is located in the central
- section.
-
- -Consensus pattern: [GA]-[RKN]-x-[LV]-G(2)-[GST](2)-x-[LIVM]-N-x(3)-[YWA]-
- x(2)-[PAG]-x(5)-[DEH]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Consensus pattern: G-[STA]-x(2)-[ST]-P-x-[LIVM](2)-x(2)-S-G-[LIVM]-G
- -Sequences known to belong to this class detected by the pattern: ALL, except
- for cholesterol oxidases.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Last update: October 1993 / Patterns and text revised.
-
- [ 1] Cavener D.R.
- J. Mol. Biol. 223:811-814(1992).
- [ 2] Henikoff S., Henikoff J.G.
- Genomics In Press(1994).
- [ 3] van Beilen J.B., Eggink G., Enequist H., Bos R., Witholt B.
- Mol. Microbiol. 6:3121-3136(1992).
-