Carboxynorspermidine decarboxylase

Carboxynorspermidine decarboxylase (EC 4.1.1.96, carboxyspermidine decarboxylase, CANSDC, VC1623 (gene)) is an enzyme with systematic name carboxynorspermidine carboxy-lyase (bis(3-aminopropyl)amine-forming).^[1]^[2]^[3] This enzyme catalyses the following chemical reaction

(1) carboxynorspermidine

\rightleftharpoons

bis(3-aminopropyl)amine + CO₂

(2) carboxyspermidine

\rightleftharpoons

spermidine + CO₂

This enzyme contains pyridoxal 5'-phosphate.

References

↑ Lee, J., Sperandio, V., Frantz, D.E., Longgood, J., Camilli, A., Phillips, M.A. and Michael, A.J. (2009). "An alternative polyamine biosynthetic pathway is widespread in bacteria and essential for biofilm formation in Vibrio cholerae". J. Biol. Chem. 284 (15): 9899–9907. doi:10.1074/jbc.M900110200. PMC 2665113. PMID 19196710.
↑ Deng, X., Lee, J., Michael, A.J., Tomchick, D.R., Goldsmith, E.J. and Phillips, M.A. (2010). "Evolution of substrate specificity within a diverse family of β/α-barrel-fold basic amino acid decarboxylases: X-ray structure determination of enzymes with specificity for L-arginine and carboxynorspermidine". J. Biol. Chem. 285 (33): 25708–25719. doi:10.1074/jbc.M110.121137. PMID 20534592.
↑ Hanfrey, C.C., Pearson, B.M., Hazeldine, S., Lee, J., Gaskin, D.J., Woster, P.M., Phillips, M.A. and Michael, A.J. (2011). "Alternative spermidine biosynthetic route is critical for growth of Campylobacter jejuni and is the dominant polyamine pathway in human gut microbiota". J. Biol. Chem. 286 (50): 43301–43312. doi:10.1074/jbc.M111.307835. PMC 3234850. PMID 22025614.

External links

Carboxynorspermidine decarboxylase at the US National Library of Medicine Medical Subject Headings (MeSH)

Carbon-carbon lyases (EC 4.1)

4.1.1: Carboxy-lyases	Acetoacetate decarboxylase Adenosylmethionine decarboxylase Aromatic L-amino acid decarboxylase Glutamate decarboxylase Histidine decarboxylase Lysine decarboxylase Malonyl-CoA decarboxylase Ornithine decarboxylase Oxaloacetate decarboxylase Phosphoenolpyruvate carboxykinase Phosphoenolpyruvate carboxylase Phosphoribosylaminoimidazole carboxylase Pyrophosphomevalonate decarboxylase Pyruvate decarboxylase RuBisCO Uridine monophosphate synthetase/Orotidine 5'-phosphate decarboxylase Uroporphyrinogen III decarboxylase

4.1.2: Aldehyde-lyases	Fructose-bisphosphate aldolase Aldolase A Aldolase B Aldolase C 2-hydroxyphytanoyl-CoA lyase Threonine aldolase

4.1.3: Oxo-acid-lyases	Isocitrate lyase 3-hydroxy-3-methylglutaryl-CoA lyase

4.1.99: Other	Tryptophanase

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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