prodigiosin

CHEBI:82758 ·resolve ·ANTIMICROBIAL_UNSPECIFIED ·EXACT SEEDED

A member of the class of tripyrroles that is a red-coloured pigment with antibiotic properties produced by Serratia marcescens. — ChEBI

Machine-generated and unreviewed. Identity, structure and cross-references come straight from ChEBI's and CARD's own data; no curator has signed off on this record yet.

Classification

Strictly broader compounds or drug classes this molecule belongs to.

Label unavailable CHEBI:35618
Label unavailable CHEBI:36317
Label unavailable CHEBI:36820

Chemical structure

Computed structure properties
Molecular formula	C20H25N3O
Charge	0
Average mass	323.44 Da
Monoisotopic mass	323.19976 Da
Source	ChEBI
InChIKey	SZXDNGVQRDTJSD-VBKFSLOCSA-N

SMILES

CCCCCC1=C/C(=C/c2nc(-c3cccn3)cc2OC)N=C1C

InChI

InChI=1S/C20H25N3O/c1-4-5-6-8-15-11-16(22-14(15)2)12-19-20(24-3)13-18(23-19)17-9-7-10-21-17/h7,9-13,21,23H,4-6,8H2,1-3H3/b16-12-

Also called

4-methoxy-5-[(Z)-(5-methyl-4-pentyl-2H-pyrrol-2-ylidene)methyl]-1H,1'H-2,2'-bipyrrole (EXACT_SYNONYM)— chebi
4-Methoxy-5-((5-methyl-4-pentyl-2H-pyrrol-2-ylidene)methyl)-2,2'-bipyrrole (EXACT_SYNONYM)— chebi

Cross-references

Identifiers for this same structure in other resources. An accession that lands on two different structures in this corpus is withheld from both rather than shown here, since it names at most one of them.

Patents and articles

Documents about this compound. A patent covers a class and an article covers a topic; neither identifies a structure.

wikipedia.en:Prodigiosin

Activity roles

Every antimicrobial role a source asserts for this compound — the unreduced evidence behind its antimicrobial_class.

antimicrobial agent CHEBI:33281

Source concepts

Every upstream concept that resolved to this record. The merge is the product: this is what shows ChEBI and CARD are describing the same structure.

Upstream concepts merged into this record
Source	Native ID	Label	Minted CURIE	Version
CHEBI	`CHEBI:82758`	prodigiosin	`antibioticmech:chebi-2f267709c5`	2026-08-30

Producer organisms

Organisms that biosynthesize this compound. Cluster link evidence is how the upstream source graded the gene cluster, so it is populated only for a source that grades it. An empty cell is not weaker support: a curator-authored producer carries its support in Evidence instead. Where the source entry named several compounds, the evidence is marked inherited, meaning it covers this compound together with the cluster's other products rather than singling it out. Those products need not be related to each other: a cluster can list an intermediate, a precursor and a finished antibiotic side by side.

Producer organisms
Organism	BGC	Cluster link evidence	Source	Quality	Note	Evidence
Pseudoalteromonas rubra NCBITaxon:43658	BGC0002675	Knock-out studies compound specific	MIBIG 4.0.1 (entry 2)	questionable	MIBiG active entry; compound 'prodigiosin' joined by exact Standard InChIKey.	DOI:10.1128/spectrum.01171-21 (MIBiG attaches this reference to the compound, as support for its STRUCTURE: every compound-level method in the release is structure elucidation (NMR, mass spectrometry, X-ray, total synthesis). It establishes what the molecule is. It is NOT evidence that this organism produces it; MIBiG attaches no reference to the producer link at all.)

Curation history

SEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Seeded from data/raw/ inventories (CHEBI)
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-08-30 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-09-08 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-09-08 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-09-08 · seed_from_sources
Re-seeded from updated data/raw/ inventories
RESEEDED_FROM_SOURCES 2026-09-10 · seed_from_sources
Re-seeded from updated data/raw/ inventories

Provenance

Seeded by scripts/seed_from_sources.py from the committed inventories in data/raw/. View the record (YAML).

Explore across X-Mech: MediaIngredientMech (prodigiosin) · CultureMech · NaturalProductMech · PathwayMech · TraitMech · TaxonMech (Pseudoalteromonas rubra)