Paromamine 6'-oxidase

Paromamine 6'-oxidase
Identifiers
EC no.1.1.3.43
Databases
BRENDAenzyme data
ExPASyNiceZyme view
KEGGenzyme entry
MetaCycmetabolic pathway
Rheareactions
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins

Paromamine 6'-oxidase (EC 1.1.3.43, btrQ (gene), neoG (gene), kanI (gene), tacB (gene)) is an enzyme with systematic name paromamine:oxygen 6'-oxidoreductase.[1] It catalyses the following chemical reaction

2D representation of the chemical structure of Q27107621.
paromamine
 
O2
H2O2
Rightward reaction arrow with minor substrate(s) from top left and minor product(s) to top right
 
 
 
2D representation of the chemical structure of Q27133569.
6'-oxoparomamine
Ribostamycin

The enzyme characterised from Streptomyces fradiae uses molecular oxygen to convert the primary alcohol of the glucosamine sugar unit into its aldehyde, giving hydrogen peroxide as a byproduct.[2] This is a step in the biosynthesis of several aminoglycoside antibiotics, including kanamycin, butirosin, neomycin and ribostamycin.[3][4]

References

  1. ↑ Enzyme 1.1.3.43 at KEGG Pathway Database.
  2. ↑ Huang F, Spiteller D, Koorbanally NA, Li Y, Llewellyn NM, Spencer JB (February 2007). "Elaboration of neosamine rings in the biosynthesis of neomycin and butirosin". ChemBioChem. 8 (3): 283–8. doi:10.1002/cbic.200600371. PMID 17206729.
  3. ↑ Yu Y, Hou X, Ni X, Xia H (February 2008). "Biosynthesis of 3'-deoxy-carbamoylkanamycin C in a Streptomyces tenebrarius mutant strain by tacB gene disruption". The Journal of Antibiotics. 61 (2): 63–9. doi:10.1038/ja.2008.111. PMID 18408324.
  4. ↑ Clausnitzer D, Piepersberg W, Wehmeier UF (September 2011). "The oxidoreductases LivQ and NeoQ are responsible for the different 6'-modifications in the aminoglycosides lividomycin and neomycin". Journal of Applied Microbiology. 111 (3): 642–51. doi:10.1111/j.1365-2672.2011.05082.x. PMID 21689223.