NaturalProductMech

siamycin I

naturalproductmech:mibig-41a7dd6467 MINTED SEEDED

Structure

Standard InChIKeyTXYRKTDGDMHVHR-NEKRQKPVSA-N
SMILESCC[C@H](C)[C@H]1C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@H]2C(=O)N[C@H](C(=O)N[C@H]3CC(=O)N[C@@H](CSSC[C@@H](C(=O)NCC(=O)N[C@H](C(=O)N[C@H](C(=O)N1)C)CC4=CC=C(C=C4)O)NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC3=O)CC5=CC=CC=C5)C)C(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)N2)CO)C(C)C)CC(C)C)CC(=O)N)C(=O)N[C@@H](CC6=CC=CC=C6)C(=O)N[C@@H](CC7=CNC8=CC=CC=C87)C(=O)O)C(C)C
Stereochemistryfully defined
Cross-referencespubchem:16130275

Filing pathway

Amino acids and peptides — 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 ribosomal, from MIBiG.

Producer organisms 2

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.

TaxonBasisClusterEvidence
Streptomyces nodosus
NCBITaxon:40318
SOURCE_ASSERTION mibig:BGC0001779 PMID:28075554
Streptomyces sp.
NCBITaxon:1931
SOURCE_ASSERTION mibig:BGC0001920 PMID:29974638

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.

TaxonSourceReference
Streptomyces
NCBITaxon:1883
LOTUS DOI:10.7164/ANTIBIOTICS.48.433

Biosynthetic gene clusters 2

AccessionHostLocus evidenceGenome
mibig:BGC0001779 Streptomyces nodosus
NCBITaxon:40318
CLUSTER_UNSTATED genbank:CP009313.1
mibig:BGC0001920 Streptomyces sp.
NCBITaxon:1931
CLUSTER_UNSTATED genbank:LC381634.1

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.

Open questions 1

shared-structure — This structure is reported by more than one MIBiG entry: BGC0001779, BGC0001920. Confirm they describe the same compound rather than an upstream cross-reference error.

Provenance

Source conceptSourceVersion
BGC0001779MIBIG5
BGC0001920MIBIG4

This page is generated from data/natural_products/amino_acids_and_peptides/siamycin-i.yaml, which is generated from the committed inventories. Neither is edited by hand.