cercosporin
naturalproductmech:mibig-acffdd16a2 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REVIEWED records curator sign-off on identity, structure, filing class and producer claims; DEPRECATED retains a superseded or out-of-scope record.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 | MXLWQNCWIIZUQT-GHMZBOCLSA-N |
|---|---|
| SMILES | C[C@H](CC1=C(C(=C2C(=O)C=C3C4=C5C(=CC(=O)C6=C(C(=C(C(=C56)C1=C42)C[C@@H](C)O)OC)O)OCO3)O)OC)O |
| Stereochemistry | fully defined |
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 |
|---|---|---|---|
| Cercospora zeina NCBITaxon:348901 |
SOURCE_ASSERTION | mibig:BGC0001542 | PMID:28535078, https://mibig.secondarymetabolites.org/repository/BGC0001542.3/annotations.json |
Occurrences 1
Somebody found the compound in this organism and cited it. That is not a claim that the organism makes it, and nothing here promotes one to the other.
| Taxon | Source | Reference |
|---|---|---|
| Cercospora zeina NCBITaxon:348901 |
LOTUS | DOI:10.1094/MPMI-03-17-0054-R |
Biosynthetic gene clusters 1
| Accession | Host | Locus evidence | Genome |
|---|---|---|---|
| mibig:BGC0001542 | Cercospora zeina NCBITaxon:348901 |
CLUSTER_UNSTATED | genbank:KY656140.1 |
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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Open questions 2
curator-cercosporin-exact-identity — Which primary stereochemical and tautomer representation supports this exact cercosporin owner?
curator-cercosporin-zeina-complementation — How should the native C. zeina CTB7-pseudogene locus and complemented production experiment be represented separately?
Provenance
| Source concept | Source | Version |
|---|---|---|
| BGC0001542 | MIBIG | 3 |
This page is generated from data/natural_products/polyketides/cercosporin-2.yaml, which is generated from the committed inventories. Neither is edited by hand.