anatoxin-a

naturalproductmech:mibig-a20d67b08f MINTED SEEDED

Grounding review: No 3-star ChEBI entry shares this structure, so the record keeps a content-hashed identifier.

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REVIEWED records curator sign-off on identity, structure, filing class and producer claims; DEPRECATED retains a superseded or out-of-scope record.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	SGNXVBOIDPPRJJ-PSASIEDQSA-N
SMILES	CC(=O)C1=CCC[C@@H]2CC[C@H]1N2
Stereochemistry	fully defined
Cross-references	pubchem:3034748, cyanometdb:CyanoMetDB_1772

Filing pathway

Alkaloids — 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, other, 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
[Oscillatoria] sp. PCC 6506 NCBITaxon:272129	SOURCE_ASSERTION	mibig:BGC0000017	DOI:10.1016/j.toxicon.2009.07.017

Occurrences 7

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
Anabaena circinalis NCBITaxon:109265	LOTUS	DOI:10.1016/0040-4020(93)80011-H
Microcystis aeruginosa NCBITaxon:1126	LOTUS	DOI:10.1016/0040-4020(93)80011-H
Oscillatoria NCBITaxon:1158	LOTUS	DOI:10.1016/0040-4020(93)80011-H
Anabaena NCBITaxon:1163	LOTUS	DOI:10.1139/V77-189
Aphanizomenon flos-aquae NCBITaxon:1176	LOTUS	DOI:10.1016/0040-4020(93)80011-H
Aphanizomenon flos-aquae NCBITaxon:1176	LOTUS	DOI:10.1039/C39950001361
Raphidiopsis mediterranea NCBITaxon:312885	LOTUS	DOI:10.1016/S0041-0101(03)00233-2

Biosynthetic gene clusters 1

Accession	Host	Locus evidence	Genome
mibig:BGC0000017	[Oscillatoria] sp. PCC 6506 NCBITaxon:272129	CLUSTER_DEMONSTRATED	genbank:FJ477836.1

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

Explore across X-Mech

AntibioticMech (anatoxin-a) ↗ MediaIngredientMech (naturalproductmech:mibig-a20d67b08f) ↗ TaxonMech: [Oscillatoria] sp. PCC 6506 (NCBITaxon:272129) ↗ PathwayMech (mibig:BGC0000017) ↗

Provenance

Source concept	Source	Version
BGC0000017	MIBIG	5

This page is generated from data/natural_products/alkaloids/anatoxin-a.yaml, which is generated from the committed inventories. Neither is edited by hand.