Tripropeptin C
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| Category | Antibiotics |
| Catalog number | BBF-02721 |
| CAS | |
| Molecular Weight | 1154.26 |
| Molecular Formula | C51H83N11O19 |
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Description
Tripropeptin C is a cyclic peptide antibiotic originally isolated from Lysobacter sp. BMK333-48F3. It has anti-Gram-positive bacteria activity against Staphylococcus (including MRSA), Streptococcus and Enterococcus, with MIC of 0.78-12.5μg/mL.
Specification
| IUPAC Name | 2-[25-[carboxy(hydroxy)methyl]-10-[3-(diaminomethylideneamino)propyl]-21-hydroxy-32-(1-hydroxyethyl)-16-(hydroxymethyl)-28-(10-methylundecyl)-2,8,11,14,17,23,26,30,33-nonaoxo-27-oxa-3,9,12,15,18,24,31,34-octazatetracyclo[32.3.0.03,7.018,22]heptatriacontan-13-yl]-2-hydroxyacetic acid |
| Canonical SMILES | CC(C)CCCCCCCCCC1CC(=O)NC(C(=O)N2CCCC2C(=O)N3CCCC3C(=O)NC(C(=O)NC(C(=O)NC(C(=O)N4CCC(C4C(=O)NC(C(=O)O1)C(C(=O)O)O)O)CO)C(C(=O)O)O)CCCN=C(N)N)C(C)O |
| InChI | InChI=1S/C51H83N11O19/c1-26(2)14-9-7-5-4-6-8-10-15-28-24-34(66)57-35(27(3)64)47(75)61-22-13-18-32(61)46(74)60-21-12-17-31(60)42(70)55-29(16-11-20-54-51(52)53)41(69)58-36(39(67)48(76)77)43(71)56-30(25-63)45(73)62-23-19-33(65)38(62)44(72)59-37(50(80)81-28)40(68)49(78)79/h26-33,35-40,63-65,67-68H,4-25H2,1-3H3,(H,55,70)(H,56,71)(H,57,66)(H,58,69)(H,59,72)(H,76,77)(H,78,79)(H4,52,53,54) |
| InChI Key | ZRHHHIZQDIARCA-UHFFFAOYSA-N |
Properties
| Antibiotic Activity Spectrum | Gram-positive bacteria |
Reference Reading
1. Natural lipopeptide antibiotic tripropeptin C revitalizes and synergistically potentiates the activity of beta-lactams against methicillin-resistant Staphylococcus aureus
Hideki Hashizume, Yoshiaki Takahashi, Shigeko Harada, Akio Nomoto J Antibiot (Tokyo). 2015 Jun;68(6):373-8. doi: 10.1038/ja.2014.169. Epub 2015 Jan 14.
Tripropeptin C (TPPC) is a natural calcium-ion-dependent lipopeptide antibiotic that inhibits peptidoglycan biosynthesis by binding to prenyl pyrophosphate. It displays very potent antimicrobial activity both in vitro and in a mouse model of methicillin-resistant Staphylococcus aureus (MRSA) septicemia. The combination of TPPC with all classes of beta-lactams tested (including penam, carbapenem, cephem and oxacephem) showed highly synergistic (SYN) effects against MRSA strains, but not against methicillin-sensitive S. aureus strains. These SYN effects were observed with both a checkerboard methodology and a time-kill analysis. The TPPC analog, bis-methyl ester-TPPC, which has neither antimicrobial activity nor the ability to bind prenyl pyrophosphate, also potentiated the activity of beta-lactams. This result indicates that the mechanism of the SYN activity of TPPC is independent of its binding to prenyl pyrophosphate. Therefore, synergistically enhancing the anti-MRSA activities of TPPC and beta-lactams by combining them is a novel and potentially powerful therapeutic strategy for MRSA infections.
2. Anti-infectious agents against MRSA
Nobuhiro Koyama, Junji Inokoshi, Hiroshi Tomoda Molecules. 2012 Dec 24;18(1):204-24. doi: 10.3390/molecules18010204.
Clinically useful antibiotics, β-lactams and vancomycin, are known to inhibit bacterial cell wall peptidoglycan synthesis. Methicillin-resistant Staphylococcus aureus (MRSA) has a unique cell wall structure consisting of peptidoglycan and wall teichoic acid. In recent years, new anti-infectious agents (spirohexaline, tripropeptin C, DMPI, CDFI, cyslabdan, 1835F03, and BPH-652) targeting MRSA cell wall biosynthesis have been discovered using unique screening methods. These agents were found to inhibit important enzymes involved in cell wall biosynthesis such as undecaprenyl pyrophosphate (UPP) synthase, FemA, flippase, or UPP phosphatase. In this review, the discovery, the mechanism of action, and the future of these anti-infectious agents are described.
3. In vivo efficacy of β-lactam/tripropeptin C in a mouse septicemia model and the mechanism of reverse β-lactam resistance in methicillin-resistant Staphylococcus aureus mediated by tripropeptin C
Hideki Hashizume, Yoshiaki Takahashi, Tohru Masuda, Shun-Ichi Ohba, Tomokazu Ohishi, Manabu Kawada, Masayuki Igarashi J Antibiot (Tokyo). 2017 Jul 26. doi: 10.1038/ja.2017.88. Online ahead of print.
Natural lipopeptide antibiotic tripropeptin C (TPPC) revitalizes and synergistically potentiates the activities of the class of β-lactam antibiotics against methicillin-resistant Staphylococcus aureus (MRSA) but not against methicillin-sensitive S. aureus in vitro; however, the mode of action remains unclear. In the course of the study to reveal its mode of action, we found that TPPC inhibited the β-lactamase production induced by cefotiam. This prompted us to focus on the β-lactam-inducible β-lactam-resistant genes blaZ (β-lactamase) and mecA (foreign penicillin-binding protein), as they are mutually regulated by the blaZ/I/R1 and mecA/I/R1 systems. Quantitative reverse-transcription polymerase chain reaction analysis revealed that TPPC reversed β-lactam resistance by reducing the expression of the genes blaZ and mecA, when treated alone or in combination with β-lactam antibiotics. In a mouse/MRSA septicemia model, subcutaneous injection of a combination of TPPC and ceftizoxime demonstrated synergistic therapeutic efficacy compared with each drug alone. These observations strongly suggested that reverse β-lactam resistance by TPPC may be a potentially effective new therapeutic strategy to overcome refractory MRSA infections.The Journal of Antibiotics advance online publication, 26 July 2017; doi:10.1038/ja.2017.88.
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
