Record Information
Version2.0
StatusDetected and Quantified
Creation Date2022-06-17 20:22:40 UTC
Update Date2025-10-07 16:09:44 UTC
Metabolite IDMMDBc0056316
Metabolite Identification
Common Namestemphyloxin II
DescriptionStemphyloxin II is a polyketide, a class of compounds characterized by their complex structures formed through the polymerization of acetyl and other acyl units. This metabolite is produced by the fungal wheat pathogen Parastagonospora nodorum, particularly during plant infection, as a result of the activation of a cryptic polyketide biosynthetic gene cluster that is upregulated in this context (PMID:31553484 ). The chemical structure of stemphyloxin II features a unique arrangement of carbon rings and functional groups that contribute to its phytotoxic properties, enabling it to interfere with plant cellular processes. While the specific biological pathways affected by stemphyloxin II are not detailed, it is known to play a role in the interaction between the pathogen and host plants, likely influencing mechanisms such as plant defense responses and pathogen virulence. The study of stemphyloxin II and its biosynthetic pathways enhances our understanding of fungal metabolism and the ecological impacts of plant-pathogen interactions.
Structure
Synonyms
ValueSource
(1R,3Z,4S,4AS,6R,8R,8as,9S,10R)-4,6,9-trihydroxy-10-[(2R)-1-hydroxybutan-2-yl]-3-(hydroxymethylidene)-1,6,8,9-tetramethyloctahydro-1,4-ethanonaphthalen-2(1H)-oneChEBI
Molecular FormulaC21H34O6
Average Mass382.497
Monoisotopic Mass382.235538815
IUPAC Name(1S,2S,4R,6R,7S,8R,10Z,11S,12R)-1,4,11-trihydroxy-12-[(2R)-1-hydroxybutan-2-yl]-10-(hydroxymethylidene)-4,6,8,11-tetramethyltricyclo[6.2.2.0^{2,7}]dodecan-9-one
Traditional Name(1S,2S,4R,6R,7S,8R,10Z,11S,12R)-1,4,11-trihydroxy-12-[(2R)-1-hydroxybutan-2-yl]-10-(hydroxymethylidene)-4,6,8,11-tetramethyltricyclo[6.2.2.0^{2,7}]dodecan-9-one
CAS Registry NumberNot Available
SMILES
[H]C(O)=C1C(=O)[C@@]2(C)[C@@]([H])([C@@]([H])(CC)CO)[C@](C)(O)[C@]1(O)[C@@]1([H])C[C@](C)(O)C[C@@]([H])(C)[C@]21[H]
InChI Identifier
InChI=1S/C21H34O6/c1-6-12(9-22)16-19(4)15-11(2)7-18(3,25)8-13(15)21(27,20(16,5)26)14(10-23)17(19)24/h10-13,15-16,22-23,25-27H,6-9H2,1-5H3/b14-10+/t11-,12+,13+,15+,16-,18-,19-,20+,21+/m1/s1
InChI KeyJTFGPTHCAAUOQL-RNPLJHCFSA-N