s. faecalis

Cefuroxime Sodium is the sodium salt form of cefuroxime and a semi-synthetic, broad-spectrum, beta-lactamase resistant, second-generation cephalosporin antibiotic with bactericidal activity. Cefuroxime sodium (Cefuroxime sodium salt) inhibits bacterial cell wall synthesis by inactivating penicillin binding proteins (PBPs) thereby interfering with the final transpeptidation step required for cross-linking of peptidoglycan units which are a component of the cell wall. Lack of cross-linking results in a reduction of cell wall stability and leads to cell lysis.

Distinctin, an antimicrobial peptide derived from frog skin, exhibits antibacterial activity against a range of pathogens including E. faecalis, P. aeruginosa, S. aureus, and E. coli, with minimum inhibitory concentration (MIC) values of 14.5, 28.0, 28.0, and 14.5 μM, respectively [1].

1-Heptadecanoyl-rac-glycerol is a monoacylglycerol that contains heptadecanoic acid at the sn-1 position. It is active against the bacteria E. aerogens, E. cloacae, P. mirabilis, and S. faecalis (MIC = 78 μg/ml for all).1 1-Heptadecanoyl-rac-glycerol has been found in T. africana, I. sonorae, and wheat bran.1,2,3 |1. Kuete, V., Metuno, R., Ngameni, B., et al. Antimicrobial activity of the methanolic extracts and compounds from Treculia africana and Treculia acuminata (Moraceae). S. Afr. J. Bot. 74(1), 111-115 (2008).|2. Fernández-Galicia, E., Calada, F., Roman-Romos, R., et al. Monoglycerides and fatty acids from Ibervillea sonorae root: Isolation and hypoglycemic activity. Planta Med. 73(3), 236-240 (2007).|3. Prinsen, P., Gutiérrez, A., Faulds, C.B., et al. Comprehensive study of valuable lipophilic phytochemicals in wheat bran. J. Agric. Food Chem. 62(7), 1664-1673 (2014).

1-Undecanoyl-rac-glycerol is a monoacylglycerol that contains undecanoic acid at the sn-1 position. It completely inhibits the growth of the bacteria B. cereus, B. subtilis, M. luteus, E. faecalis, and S. aureus when used at concentrations ranging from 250 to 1,500 mg/L.1 1-Undecanoyl-rac-glycerol (0.1 and 0.3 mg/ml) also has antifungal activity against K. marxianus, S. cerevisiae, and C. maltosa.2

Betulinic aldehyde oxime is a pentacyclic triterpenoid and derivative of the cholesterol biosynthesis inhibitor betulin .1It is active againstE. aerogenes,E. coli,E. faecalis,P. aeruginosa,S. aureus, andC. albicans, as well asL. donovaniamastigotes, when used at a concentration of 50 μM.1,2Betulinic aldehyde oxime (50 μM) is cytotoxic to Huh7 hepatocellular carcinoma cells.2

Norchelerythrine shows significant inhibitory activity against Staphylococcus aureus ATCC 6538 with MIC values ranging from 12.5 to 50 ug mL. It exhibits strong antifeeding activity in a concentration-dependant manner with the EC50 of 62.67 ppm.

Parvodicin C2, a glycopeptide antibiotic derived from A. parvosata and part of the parvodicin complex, serves as a component of the A40926 antibiotic complex utilized as a precursor for synthesizing dalbavancin. It exhibits activity against methicillin-sensitive and methicillin-resistant strains of S. aureus, S. epidermidis, S. saprophyticus, S. hemolyticus, and E. faecalis.

FASN-IN-6 (compound 44), a potent fatty acid biosynthesis (FAB) inhibitor, serves as an antibacterial agent, exhibiting minimum inhibitory concentrations (MICs) of 1 μg/mL for S. aureus ATCC 25923 and 4 μg/mL for E. faecalis ATCC 29212 [1].

Bactobolin A, a microbial metabolite initially derived from Pseudomonas, exhibits both antibiotic and anticancer properties. It demonstrates activity against various bacteria including S. aureus, S. epidermidis, S. faecalis, B. anthracis, B. subtilis, E. coli, S. typhi, and S. dysenteriae, with minimum inhibitory concentrations (MICs) ranging from 0.1 to 12.5 µg/ml. Additionally, in vivo studies show that bactobolin A enhances survival rates at doses of 0.25 to 4 mg/kg in an L1210 murine leukemia model.

Parvodicin complex is a mixture of closely related lipophilic glycopeptides originally isolated from A. parvosata. The parvodicin complex has activity against Gram-positive bacteria (MICs = 0.8-12.5 μg/ml) including methicillin-resistant strains of S. aureus (MRSA), S. hemolyticus, and E. faecalis (MICs = 0.1-25 μg/ml). Glycopeptide antibiotics act by preventing cell wall synthesis by binding and sequestering a cell wall precursor with a D-alanine-containing peptide.

Antibacterial agent 113 was an effective antimicrobial agent (antibacterial) against P. aeruginosa, S. mutans, B. subtilis, E. coli, E. faecalis, S. typhimuriumand and S. aureus microorganisms exhibited antibacterial effects with MIC values of 15625 μM.

Flumequine-13C3is intended for use as an internal standard for the quantification of flumequine by GC- or LC-MS. Flumequine is a fluoroquinolone antibiotic.1It is active againstS. aureus, S. pyogenes, B. subtilis, E. coli, P. aeruginosa, S. faecalis, andK. pneumoniae(MICs = 1-100 μg/ml). Flumequine is also active against field isolates of B. hyodysenteriae (MICs = 6.25-200 μg/ml).2It inhibits DNA gyrase, disrupting supercoiling of bacterial DNA to block transcription and replication.3In vivo, flumequine (50 mg/kg) increases survival in rat models ofP. vulgaris-induced urinary tract infection andP. mirabilis-induced prostatitis.1Formulations containing flumequine have been used in the treatment of urinary tract infections in veterinary medicine. 1.Rohlfing, S.R., Gerster, J.R., and Kvam, D.C.Bioevaluation of the antibacterial flumequine for urinary tract useAntimicrob. Agents Chemother.10(1)20-24(1976) 2.Aller-Morán, L.M., Martínez-Lobo, F.J., Rubio, P., et al.Evaluation of the in vitro activity of flumequine against field isolates of Brachyspira hyodysenteriaeRes. Vet. Sci.10351-53(2015) 3.Smith, J.T.The mode of action of 4-quinolones and possible mechanisms of resistanceJ. Antimicrob. Chemother.18 (Suppl. D)21-29(1986)

Tilapia piscidin 3, an antimicrobial peptide, exhibits antibacterial properties effective against both gram-positive and gram-negative bacteria. It has demonstrated minimum inhibitory concentrations (MICs) of 2.44 µg/mL for V. vulnificus 204 and V. alginolyticus, 9.78 µg/mL for S. agalactiae 819, 19.55 µg/mL for E. faecalis BCRC 10066, and 0.61 µg/mL for S. agalactiae BCRC 10787. Additionally, it presents hemolytic activity on fish red blood cells [1].

Rugulotrosin A is an antibiotic originally isolated from Penicillium, active against the Gram-positive bacteria E. faecalis, B. cereus, B. subtilis, and S. aureus with 99% lethal dose (LD99) values of 1.6, 3.1, 5.5, and 200 μg ml, respectively. Rugulotrosin A is inactive against Gram-negative bacteria.

Aszonapyrone A is a meroditerpene fungal metabolite that has been found in Neosartorya and has diverse biological activities.1,2,3 It inhibits the growth of MCF-7, NCI H460, and A375-C5 cancer cells (GI50s = 13.6, 11.6, and 10.2 μM, respectively).1 Aszonapyrone A is active against multidrug-resistant isolates of S. aureus, E. faecalis, and E. faecium (MICs = 8, 16, and 16 μg/ml, respectively) and inhibits S. aureus biofilm formation.2 It is also active against P. falciparum in vitro (IC50 = 1.34 μg/ml).3

A-39183A is an active component of the A-39183 antibiotic complex produced by aerobic fermentation of Streptomyces NRRL 12049. It has activity against penicillin-resistant S. aureus 3055 and S. faecalis X66 (MICs = 32 and 32 μg/ml, respectively) and a variety of Gram-positive and Gram-negative anaerobic bacteria (MICs = 16-128 μg/ml) in an agar dilution assay.

Corynecin III is a chloramphenicol-like antibiotic originally isolated from Corynebacterium. It inhibits the growth of Gram-positive and Gram-negative bacteria, including S. faecalis, S. aureus, B. subtilis, E. coli, P. aeruginosa, P. vulgaris, S. sonnei, S. typhosa, and K. pneumoniae (MICs = 2.6-83 μg/ml).

Leoidin is a depsidone originally isolated from L. gangaleoides that has antibacterial and enzyme inhibitory activities.1,2,3 It is active against the bacteria E. faecalis, H. influenzae, M. catarrhalis, S. aureus, and S. pneumoniae (MICs = 8, 32, 1, 128, and 64 μg/ml, respectively).2 Leoidin inhibits phenylalanyl-tRNA synthetase (PheRS) isolated from P. aeruginosa (IC50 = 42 μM). It also inhibits organic anion-transporting polypeptide 1B1 (OATP1B1) and OATP1B3 with Ki values of 0.08 and 1.84 μM, respectively, in CHO cells expressing the human transporters.3

Kocurin is a thiazolyl peptide originally isolated fromK. palustrisand has antibiotic activity.1It is active against methicillin-resistantS. aureus(MRSA; MIC = 0.25 μg/ml), as well asB. subtilisandE. faeciumin a solid agar test when used at a concentration of 8 μg/ml. Kocurin is also active againstE. faecium,E. faecalis,S. epidermidis, and clinical isolates of vancomycin-resistant enterococci (MICs = 0.004-1.025 μg/ml).2In vivo, kocurin (2.5, 5, and 10 mg/ml) increases survival in a mouse model ofE. faecium-induced septicemia. It decreases the number of colony forming units (CFUs) in a mouse model of MRSA lung infection. 1.Martin, J., da S. Sousa, T., Crespo, G., et al.Kocurin, the true structure of PM181104, an anti-methicillin-resistant Staphylococcus aureus (MRSA) thiazolyl peptide from the marine-derived bacterium Kocuria palustrisMar. Drugs11(2)387-398(2013) 2.Mahajan, G., Thomas, B., Parab, R., et al.In vitro and in vivo activities of antibiotic PM181104Antimicrob. Agents Chemother.57(11)5315-5319(2013)

Antibacterial agent 112 (compound 2) is a potent antibacterial agent with a minimum inhibitory concentration (MIC) of 1250 μM against B. subtilis, E. coli, E. faecalis, S. typhimurium, and S. aureus microorganisms. A3N19 is an HIV-1 antibody with antibacterial activity.

Leucomycin a5 is a metabolite from the leucomycin complex, which was originally isolated from S. kitasatoensis. It is active against a variety of Gram-positive and Gram-negative bacteria (MICs = 0.04-0.8 µg/ml) but not against K. pneumoniae, S. typhimuriu

Ambuic acid is a cyclohexanone that has phytopathogenic antifungal, quorum sensing inhibitory, and antibacterial activities. Ambuic acid inhibits the biosynthesis of cyclic peptides involved in quorum sensing, including gelatinase biosynthesis-activating pheromone (GBAP) in E. faecalis, autoinducing peptide I (AIP-I) in S. aureus, and LsrD698 and LsrD826 in L. innocua. It suppresses abcess formation in a mouse model of skin infection induced by methicillin-resistant S. aureus (MRSA) when administered at a dose of 5 µg and decreases the activity of the agr quorum sensing system in an in vivo reporter assay.

10'-Desmethoxystreptonigrin is an antibiotic originally isolated from Streptomyces and a derivative of the antibiotic streptonigrin. It is active against a variety of bacteria, including S. aureus, S. faecalis, E. coli, K. pneumoniae, and P. vulgaris (MICs = 0.4, 1.6, 3.1, 3.1 and 0.4 μg/ml, respectively). 10'-Desmethoxystreptonigrin is cytotoxic to HCT116 colon and A2780 ovarian cancer cells (IC50s = 0.004 and 0.001 μg/ml, respectively), as well as HCT116 cells resistant to etoposide and teniposide and cisplatin-resistant A2780 cells (IC50s = 0.003, 0.001, and 0.01 μg/ml, respectively). 10'-Desmethoxystreptonigrin is also an inhibitor of p21ras farnesylation (IC50 = 21 nM).

Quinaldopeptin is a quinomycin antibiotic. It is active against a variety of bacteria, including S. pyogenes, S. aureus, C. perfringens, S. faecalis, E. coli, and K. pneumoniae (MICs = 0.2, 0.4, 0.8, 1.6, 3.1 and 6.3 μg ml, respectively). It is cytotoxic to B16 F10 and Moser cells (IC50s = 0.0008 and 0.04 μg ml, respectively) and increases survival in a P388 leukemia mouse model. Quinaldopeptin is a bis-intercalator depsipeptide (NPBID) that binds to and intercalates into DNA (Kd = 32 nM).

Thiocillin I, a thiopeptide antibiotic, demonstrates potent in vitro antibacterial effects against Gram-positive bacteria. This compound exhibits minimum inhibitory concentrations (MICs) of 2 μg mL, 0.5 μg mL, 4 μg mL, and 0.5 μg mL against S. aureus 1974149, E. faecalis 1674621, B. subtilis ATCC 6633, and S. pyogenes 1744264, respectively.

Antibacterial agent 114 (compound 1) is a potent antibacterial agent with MIC values of 625 μM for P. aeruginosa, B. subtilis, E. coli, E. faecalis, and S. typhimurium; and 1250 μM for S. mutans and S. aureus microorganisms, respectively [1].

CAY10742 is an orally bioavailable oxadiazole antibiotic.1It is active against the Gram-positive bacteriaS. aureus,S. epidermidis,S. haemolyticus,B. cereus,B. licheniformis,E. faecalis, andE. faecium(MICs = 1-4 μg/ml), including laboratory strains and clinical isolates with varying degrees of resistance to methicillin, vancomycin, linezolid, and other antibiotics. CAY10742 (40 mg/kg) reduces the number of bacteria in mouse neutropenic thigh models of linezolid-sensitive or -resistant methicillin-resistantS. aureus(MRSA) infection. 1.Boudreau, M.A., Ding, D., Meisel, J.E., et al.Structure-activity relationship for the oxadiazole class of antibacterialsMed. Chem. Lett.11(3)322-326(2019)

Pyrrofolic acid shows high anti-folate biological activity for S. faecalis.

GP-2B, an antimicrobial peptide, exhibits antibacterial activity against Gram-positive strains, with a minimum inhibitory concentration (MIC) ranging from 8 to 128 μg/mL for S. aureus and Enterococcus faecalis [1].

Siamycin I is a tricyclic peptide originally isolated from Streptomyces and has antiviral and antibacterial activities. It is active against laboratory strains and clinical isolates of HIV-1 (ED50s = 0.05-0.45 and 0.89-5.7 μM, respectively), as well as the CBL-20 strain of HIV-2 (ED50 = 0.45 μM), in vitro. Siamycin I inhibits HIV-induced fusion of C8166 T cells with HIV-1-infected CEM-SS cells with an ED50 value of 0.08 μM. It is also active against B. subtilis, M. luteus, and S. aureus (MICs = 1.6-6.3 μg/ml). Siamycin I inhibits autophosphorylation of the E. faecalis quorum sensing kinase FsrC induced by gelatinase biosynthesis-activating pheromone (GBAP).

Obafluorin is a β-lactone antibiotic that has been found in P. fluorescens.1 It is active against S. aureus, S. faecalis, K. pneumoniae, and P. vulgaris (MIC = 125 μg/ml for all). |1. Pu, Y., Lowe, C., Sailer, M., et al. Synthesis, stability, and antimicrobial activity of (+)-obafluorin and related β-lactone antibiotics. J. Org. Chem. 59(13), 3642-3655 (1994).

BE-24566B is a polyketide fungal metabolite originally isolated fromS. violaceusniger.1It is active againstB. subtilis,B. cereus,S. aureus,M. luteus,E. faecalis, andS. thermophilus(MICs = 1.56, 1.56, 1.56, 1.56, 3.13, and 3.13 μg/ml, respectively). BE-24566B is an endothelin (ET) receptor antagonist (IC50s = 11 and 3.9 μM for ETAand ETBreceptors, respectively).2 1.Kojiri, K., Nakajima, S., Fuse, A., et al.BE-24566B, a new antibiotic produced by Streptomyces violaceusnigerJ. Antibiot. (Tokyo)48(12)1506-1508(1995) 2.Lam, Y.K.T., Hensens, O., Helms, G., et al.L-755,805, a new polyketide endothelin binding inhibitor from an actinomyceteTetrahedron Lett.36(12)2013-2016(1995)

Altholactone may be a potential antimicrobial agent, particularly in ciprofloxacin-refractory S. aureus and E. faecalis infections. It can inhibit the growth of various types of cancer cells through inducing apoptosis via oxidative stress, including bladd

Antiproliferative Agent-33 (Compound 2g) serves as an anti-proliferative, antifungal, and antibacterial agent, effectively inhibiting the proliferation of MDA-MB-231 cells (IC50: 16.38 μM), impairing the growth of gram-negative bacteria, and restraining S. faecalis with an MIC of 8 μg/mL [1].

Chloramine-T serves as a versatile reagent in numerous synthetic procedures, including aminohydroxylation, allylic amination, as a nitrogen source in aziridination reactions of alkenes and olefins, and for the deprotection of thio groups in sulfur-containing molecules. Additionally, it plays a role in the synthesis of Factor Xa inhibitors. At a concentration of 0.2% w/v, Chloramine-T acts as an effective antiseptic agent with bactericidal properties against S. epidermidis, S. aureus, E. faecalis, E. coli, P. mirabilis, and E. cloacae.

Flumequine (R-802) is a broad-spectrum antibiotic effective against both Gram-positive and Gram-negative bacteria. It operates by inhibiting DNA gyrase (a type II topoisomerase) and topoisomerase IV, enzymes crucial for separating bacterial DNA, thereby preventing cell division.