Biology:Pseudaminic acid synthase

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Pseudaminic acid synthase
Identifiers
EC number2.5.1.97
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Pseudaminic acid synthase (EC 2.5.1.97, PseI, NeuB3) is an enzyme with systematic name phosphoenolpyruvate:2,4-bis(acetylamino)-2,4,6-trideoxy-beta-L-altropyranose transferase (phosphate-hydrolysing, 2,7-acetylamino-transferring, 2-carboxy-2-oxoethyl-forming).[1] This enzyme catalyses the following chemical reaction

phosphoenolpyruvate + 2,4-bis(acetylamino)-2,4,6-trideoxy-beta-L-altropyranose + H2O [math]\displaystyle{ \rightleftharpoons }[/math] 5,7-bis(acetylamino)-3,5,7,9-tetradeoxy-L-glycero-alpha-L-manno-2-nonulopyranosonic acid + phosphate

The enzyme requires a divalent metal ion, preferably Mn2+ and Co2+.

References

  1. "Identification and characterization of NeuB3 from Campylobacter jejuni as a pseudaminic acid synthase". The Journal of Biological Chemistry 280 (43): 35922–8. October 2005. doi:10.1074/jbc.M507483200. PMID 16120604. 

External links