4-methyl-5-methylheptatriene-β-ketolactone
naturalproductmech:mibig-2193edd919 MINTED SEEDED
What these status tags mean
Curation status describes a workflow state. SEEDED means the record entered through the source-seeding workflow; it does not imply that no later curation occurred. PROPOSED marks an addition awaiting review; REVIEWED records curator sign-off on identity, structure, filing class and producer claims; DEPRECATED retains a superseded or out-of-scope record. These are workflow decisions, not independently verified human review. Agent-assisted contributions may appear in the record history.
Grounding describes the identifier mapping: EXACT uses an ontology identity asserted by the source; MINTED keeps a local identifier when no defensible ontology identity is available; REVIEW_NEEDED flags an exact structure whose ontology identity needs adjudication. The grounding note retains any unresolved alternatives. These tags do not establish the strength of producer or activity evidence.
Structure
| Standard InChIKey | DXBJPNHJQDZLKI-JWVJYVHFSA-N |
|---|---|
| SMILES | C\C=C\C=C\C=C(/C)C1OC(=O)CC(=O)C1C |
| Stereochemistry | undefined stereocentres — the InChIKey does not distinguish this compound from its stereoisomers |
Filing pathway
Polyketides — computed by NPClassifier npclassifier.gnps2.org@2026-09-07, which is why it is pinned rather than recomputed. The gene cluster's asserted class is pks, from MIBiG.
Producer organisms 1
A claim that this taxon makes the compound. The basis says what the evidence addressed — a knockout and a database assertion are not the same claim.
| Taxon | Basis | Cluster | Evidence |
|---|---|---|---|
| Aspergillus stellatus NCBITaxon:1549217 |
SOURCE_ASSERTION | mibig:BGC0002170 | PMID:31678008 |
Occurrences 0
None cited.
Biosynthetic gene clusters 1
| Accession | Host | Locus evidence | Genome |
|---|---|---|---|
| mibig:BGC0002170 | Aspergillus stellatus NCBITaxon:1549217 |
CLUSTER_DEMONSTRATED | genbank:LC492132.1 |
A locus claim and a taxon claim are different questions. Heterologous expression settles the first and leaves the second where the isolation report left it.
Mechanism & Biosynthesis Overview
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Provenance
| Source concept | Source | Version |
|---|---|---|
| BGC0002170 | MIBIG | 2 |
This page is generated from data/natural_products/polyketides/4-methyl-5-methylheptatriene-ketolactone.yaml, which is generated from the committed inventories. Neither is edited by hand.