Secologanin synthase

secologanin synthase
Identifiers
EC no.1.14.19.62
CAS no.258339-71-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

In enzymology, secologanin synthase (EC 1.14.19.62, was wrongly classified as EC 1.3.3.9 in the past) is an enzyme that catalyzes the chemical reaction

 
 
O2
2 H2O
O2
2 H2O
 
 

The three substrates of this enzyme are loganin, reduced nicotinamide adenine dinucleotide phosphate (NADPH), and oxygen. Its products are secologanin, oxidised NADP+, and water.[1][2]

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with oxygen as acceptor. The systematic name of this enzyme class is loganin:oxygen oxidoreductase (ring-cleaving). It is a member of the cytochrome P450 protein superfamily and participates in indole and ipecac alkaloid biosynthesis.[3][4]

References

  1. ^ Enzyme 1.14.19.62 at KEGG Pathway Database.
  2. ^ Yamamoto H, Katano N, Ooi Y, Inoue K (1999). "Transformation of loganin and 7-deoxyloganin into secologanin by Lonicera japonica cell suspension cultures". Phytochemistry. 50 (3): 417โ€“422. Bibcode:1999PChem..50..417Y. doi:10.1016/S0031-9422(98)00613-X.
  3. ^ Yamamoto H, Katano N, Ooi A, Inoue K (2000). "Secologanin synthase which catalyzes the oxidative cleavage of loganin into secologanin is a cytochrome P450". Phytochemistry. 53 (1): 7โ€“12. Bibcode:2000PChem..53....7Y. doi:10.1016/S0031-9422(99)00471-9. PMID 10656401.
  4. ^ Strack D, Matern U, Schroder J (2000). "Indole alkaloid biosynthesis in Catharanthus roseus: new enzyme activities and identification of cytochrome P450 CYP72A1 as secologanin synthase". Plant J. 24 (6): 797โ€“804. doi:10.1046/j.1365-313x.2000.00922.x (inactive 30 July 2025). PMID 11135113.{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link)