mersacidin

CHEBI:71658 ·resolve ·ANTIBACTERIAL ·EXACT SEEDED

A type-B lantibiotic containing 3-methyllanthionine and S-(2-aminovinyl)-3-methylcysteine residues and four intra-chain thioether bridges. It is obtained from Bacillus sp. HIL Y-85,54728 and is active in vivo against methicillin-resistant Staphylococcus aureus (MRSA). — 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.

CHEBI:51026 CHEBI:51026
CHEBI:71647 CHEBI:71647

Chemical structure

Computed structure properties
Molecular formula	C80H120N20O21S4
Charge	0
Average mass	1826.227 Da
Monoisotopic mass	1824.78197 Da
Source	ChEBI
InChIKey	JSWKNDSDVHJUKY-CYGWNLPQSA-N

SMILES

[H][C@]1(NC(=O)[C@H](Cc2ccccc2)NC(=O)[C@]2([H])NC(=O)[C@@H](N)CS[C@H]2C)C(=O)N[C@@]([H])(CC(C)C)C(=O)N2CCC[C@@]2([H])C(=O)NCC(=O)NCC(=O)NCC(=O)NCC(=O)N[C@@H](C(C)C)C(=O)N[C@H](C(=O)N[C@H]2C(=O)N[C@@H](CC(C)C)C(=O)NC3C(=O)NC(=C)C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CS[C@@]2([H])C)C(=O)N[C@@]([H])([C@H](C)CC)C(=O)N/C=C/S[C@H]3C)CS[C@H]1C

InChI

InChI=1S/C80H120N20O21S4/c1-14-40(8)61-74(115)82-24-26-122-42(10)62-76(117)87-41(9)66(107)88-48(22-23-59(105)106)68(109)92-52(71(112)95-61)35-124-44(12)64(78(119)89-49(27-37(2)3)69(110)97-62)99-72(113)53-36-125-45(13)65(98-70(111)50(29-46-19-16-15-17-20-46)90-77(118)63-43(11)123-34-47(81)67(108)96-63)79(120)91-51(28-38(4)5)80(121)100-25-18-21-54(100)73(114)86-32-57(103)84-30-55(101)83-31-56(102)85-33-58(104)94-60(39(6)7)75(116)93-53/h15-17,19-20,24,26,37-40,42-45,47-54,60-65H,9,14,18,21-23,25,27-36,81H2,1-8,10-13H3,(H,82,115)(H,83,101)(H,84,103)(H,85,102)(H,86,114)(H,87,117)(H,88,107)(H,89,119)(H,90,118)(H,91,120)(H,92,109)(H,93,116)(H,94,104)(H,95,112)(H,96,108)(H,97,110)(H,98,111)(H,99,113)(H,105,106)/b26-24+/t40-,42+,43+,44+,45+,47+,48+,49+,50+,51+,52+,53+,54+,60+,61+,62?,63-,64-,65-/m1/s1

Also called

3-{(4S,7S,8S,11R,14S,17E,20S,26S)-7-[({(15S,18R,21S,22S,25S,30aS)-22-[(N-{[(2S,3S,6R)-6-amino-2-methyl-5-oxo-1,4-thiazepan-3-yl]carbonyl}-L-phenylalanyl)amino]-25-isobutyl-15-isopropyl-21-methyl-1,4,7,10,13,16,23,26-octaoxooctacosahydro-1H-pyrrolo[2,1-u][1,4,7,10,13,16,19,22,25]thiaoctaazacyclooctacosin-18-yl}carbonyl)amino]-14-[(2R)-butan-2-yl]-4-isobutyl-8,20-dimethyl-23-methylene-3,6,12,15,21,24,27-heptaoxo-9,19-dithia-2,5,13,16,22,25,28-heptaazabicyclo[9.9.8]octacos-17-en-26-yl}propanoic acid (EXACT_SYNONYM)— chebi
M87-1551 (EXACT_SYNONYM)— chebi

Cross-references

Equivalent identifiers for this same structure in other resources.

cas:128104-18-7
reaxys:8197141

Activity roles

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

CHEBI:33281 CHEBI:33281
CHEBI:33282 CHEBI:33282

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:71658`	mersacidin	`antibioticmech:chebi-7758ea07e3`	2026-08-30

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

Provenance

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