Glycerol dehydratase

This enzyme belongs to the family of lyases, specifically the hydro-lyases, which cleave carbon-oxygen bonds. The systematic name of this enzyme class is glycerol hydro-lyase (3-hydroxypropanol-forming). Other names in common use include glycerol dehydrase, and glycerol hydro-lyase. This enzyme participates in glycerolipid metabolism. It employs one cofactor, cobalamin.

Structural studies

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 1IWP and 1MMF.

References

Forage RG, Foster MA (1982). "Glycerol fermentation in Klebsiella pneumoniae: functions of the coenzyme B12-dependent glycerol and diol dehydratases". J. Bacteriol. 149 (2): 413–9. PMC 216523. PMID 7035429.
Schneider Z, Larsen EG, Jacobson G, Johnson BC, Pawelkiewicz J (1970). "Purification and properties of glycerol dehydrase". J. Biol. Chem. 245 (13): 3388–96. PMID 4989992.
Schneider Z, Pawelkiewicz J (1966). "The properties of glycerol dehydratase isolated from Aerobacter aerogenes, and the properties of the apoenzyme subunits". Acta Biochim. Pol. 13 (4): 311–28. PMID 5962440.
SMILEY KL, SOBOLOV M (1962). "A cobamide-requiring glycerol dehydrase from an acrolein-forming Lactobacillus". Arch. Biochem. Biophys. 97 (3): 538–43. doi:10.1016/0003-9861(62)90118-2. PMID 14039344.

Carbon-oxygen lyases (EC 4.2) (primarily dehydratases)

4.2.1: Hydro-Lyases	Carbonic anhydrase Fumarase Aconitase Enolase Alpha Enolase 2 Enoyl-CoA hydratase/3-Hydroxyacyl ACP dehydrase Methylglutaconyl-CoA hydratase Tryptophan synthase Cystathionine beta synthase Porphobilinogen synthase 3-Isopropylmalate dehydratase Urocanase Uroporphyrinogen III synthase Nitrile hydratase

4.2.2: Acting on polysaccharides	Hyaluronate lyase

4.2.3: Acting on phosphates	Threonine synthase

4.2.99: Other	Carboxymethyloxysuccinate lyase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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