Record Information
Version2.0
StatusDetected and Quantified
Creation Date2021-05-14 20:41:31 UTC
Update Date2025-10-07 16:04:34 UTC
Metabolite IDMMDBc0002223
Metabolite Identification
Common NameLinocin M18
DescriptionLinocin M18 is a bacteriocin, a type of antimicrobial peptide that belongs to the chemical class of non-ribosomally synthesized peptides. It is produced by the bacterium Brevibacterium linens M18, which is commonly associated with the ripening of red smear cheeses. The production of Linocin M18 has been linked to specific laterosporus strains from New Zealand, which generate high molecular weight putative antimicrobial bacteriocins (PMID:40992855 ). Genomic analyses have identified several biosynthetic gene clusters that encode for Linocin M18 and other bacteriocins, indicating its role in microbial competition and inhibition of pathogens such as Listeria (PMID:39826720 ). The Linocin M18 protein exhibits autocidal activity, suggesting a potential mechanism for its antibacterial effects (PMID:37204448 ). Furthermore, its presence has been correlated with reduced growth of Listeria in cheese matrices, although it may not fully account for the inhibition observed in certain cheese varieties (PMID:9406400 ). The amino acid sequence of Linocin M18 shares high identity with homologs from related bacterial species, highlighting its conserved nature within the bacteriocin family (PMID:37204448 ). Overall, Linocin M18 represents a significant component of the antimicrobial arsenal in cheese microbiology.
Structure
SynonymsNot Available
Molecular FormulaC91H146N24O27S
Average Mass2040.37
Monoisotopic Mass2039.050996711
IUPAC Name4-({2-[(2-{[2-({2-[(2-{[2-amino-1-hydroxy-4-(methylsulfanyl)butylidene]amino}-1-hydroxy-3-(C-hydroxycarbonimidoyl)propylidene)amino]-1-hydroxy-3-(C-hydroxycarbonimidoyl)propylidene}amino)-1-hydroxy-4-methylpentylidene]amino}-1-hydroxy-3-(4-hydroxyphenyl)propylidene)amino]-5-carbamimidamido-1-hydroxypentylidene}amino)-4-{[1-({1-[2-({1-[2-({2-[2-({1-[(1-{[1-({3-carboxy-1-[(1-carboxy-2-methylbutyl)-C-hydroxycarbonimidoyl]propyl}-C-hydroxycarbonimidoyl)ethyl]-C-hydroxycarbonimidoyl}ethyl)-C-hydroxycarbonimidoyl]ethyl}-C-hydroxycarbonimidoyl)pyrrolidin-1-yl]-2-oxoethyl}-C-hydroxycarbonimidoyl)pyrrolidin-1-yl]-3-methyl-1-oxopentan-2-yl}-C-hydroxycarbonimidoyl)pyrrolidin-1-yl]-1-oxopropan-2-yl}-C-hydroxycarbonimidoyl)-3-methylbutyl]-C-hydroxycarbonimidoyl}butanoic acid
Traditional Name4-({2-[(2-{[2-({2-[(2-{[2-amino-1-hydroxy-4-(methylsulfanyl)butylidene]amino}-1-hydroxy-3-(C-hydroxycarbonimidoyl)propylidene)amino]-1-hydroxy-3-(C-hydroxycarbonimidoyl)propylidene}amino)-1-hydroxy-4-methylpentylidene]amino}-1-hydroxy-3-(4-hydroxyphenyl)propylidene)amino]-5-carbamimidamido-1-hydroxypentylidene}amino)-4-{[1-({1-[2-({1-[2-({2-[2-({1-[(1-{[1-({3-carboxy-1-[(1-carboxy-2-methylbutyl)-C-hydroxycarbonimidoyl]propyl}-C-hydroxycarbonimidoyl)ethyl]-C-hydroxycarbonimidoyl}ethyl)-C-hydroxycarbonimidoyl]ethyl}-C-hydroxycarbonimidoyl)pyrrolidin-1-yl]-2-oxoethyl}-C-hydroxycarbonimidoyl)pyrrolidin-1-yl]-3-methyl-1-oxopentan-2-yl}-C-hydroxycarbonimidoyl)pyrrolidin-1-yl]-1-oxopropan-2-yl}-C-hydroxycarbonimidoyl)-3-methylbutyl]-C-hydroxycarbonimidoyl}butanoic acid
CAS Registry NumberNot Available
SMILES
CCC(C)C(N=C(O)C(CCC(O)=O)N=C(O)C(C)N=C(O)C(C)N=C(O)C(C)N=C(O)C1CCCN1C(=O)CN=C(O)C1CCCN1C(=O)C(N=C(O)C1CCCN1C(=O)C(C)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CCCNC(N)=N)N=C(O)C(CC1=CC=C(O)C=C1)N=C(O)C(CC(C)C)N=C(O)C(CC(O)=N)N=C(O)C(CC(O)=N)N=C(O)C(N)CCSC)C(C)CC)C(O)=O
InChI Identifier
InChI=1S/C91H146N24O27S/c1-14-46(7)71(89(140)115-36-18-21-63(115)85(136)98-43-68(119)113-34-17-22-64(113)86(137)101-49(10)74(125)99-48(9)73(124)100-50(11)75(126)103-57(29-31-70(122)123)79(130)112-72(90(141)142)47(8)15-2)111-87(138)65-23-19-35-114(65)88(139)51(12)102-80(131)58(38-44(3)4)107-78(129)56(28-30-69(120)121)105-77(128)55(20-16-33-97-91(95)96)104-82(133)60(40-52-24-26-53(116)27-25-52)109-81(132)59(39-45(5)6)108-84(135)62(42-67(94)118)110-83(134)61(41-66(93)117)106-76(127)54(92)32-37-143-13/h24-27,44-51,54-65,71-72,116H,14-23,28-43,92H2,1-13H3,(H2,93,117)(H2,94,118)(H,98,136)(H,99,125)(H,100,124)(H,101,137)(H,102,131)(H,103,126)(H,104,133)(H,105,128)(H,106,127)(H,107,129)(H,108,135)(H,109,132)(H,110,134)(H,111,138)(H,112,130)(H,120,121)(H,122,123)(H,141,142)(H4,95,96,97)
InChI KeyGZNURBUEENTXCG-UHFFFAOYSA-N