Antimicrobiens

Lomefloxacin is a fluoroquinolone antibiotic with a mode of action that inhibits bacterial DNA gyrase and topoisomerase IV. It is used for treating bacterial infections like bronchitis and urinary tract infections.

Maduramicin ammonium is an anticoccidial agent with action on protozoal parasites by disrupting ion gradients and is used for preventing coccidiosis in poultry.

Roxithromycin is a macrolide antibiotic with action on bacterial protein synthesis by binding to the 50S ribosomal subunit and is used for treating respiratory, skin, and soft tissue infections.

Mebendazole is a benzimidazole anthelmintic with action on microtubule formation in parasitic worms and is used for treating intestinal worm infections like threadworms and roundworms.

Abacavir is an antiviral nucleoside reverse transcriptase inhibitor that is used for the treatment of HIV. This drug inhibits the activity of HIV-1 reverse transcriptase (RT) both by competing with dGTP and by its incorporation into viral DNA.

Fluoroquinolone; gyrase inhibitor

Herbicidin B is a natural herbicidal compound, which is a secondary metabolite produced through the fermentation of certain Streptomyces species. This compound functions as a potent inhibitor of plant growth by interfering with essential physiological processes within the plant cells. The mode of action of Herbicidin B primarily involves disruption of metabolic pathways that are critical for the development and survival of plants, leading to effective control of undesired vegetation.

Ticarcillin disodium salt is a beta-lactam antibiotic that has in vitro activity against Gram-positive and Gram-negative bacteria. Ticarcillin is active against penicillinase-producing strains of Staphylococcus aureus, Enterobacter aerogenes, Proteus mirabilis, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Serratia marcescens, Streptococcus pyogenes, Streptococcus faecalis, and Streptococcus pneumoniae. Furthermore, it inhibits transpeptidase activity of the cell wall of bacteria which prevents peptidoglycan synthesis. It is bactericidal for many bacteria at low concentrations.

Caspofungin is an echinocandin that belongs to the class of antifungal agents. It is used to treat Aspergillus and Candida infections. It works by inhibiting the synthesis of beta-(1,3)-D-glucan, an essential component of the cell wall of Aspergillus species and Candida species.

Nalidixic acid sodium salt is a sodium salt form of nalidixic acid with similar action and applications as nalidixic acid.

This product is part of our Bio-X ™ Range. These products are aimed at life science researchers who need high quality ready-to-use products for assay development, screening or other R&D work. With a solubility datasheet and convenient vials, all of our Bio-X ™ products are in stock across our global warehouses for rapid delivery and ease of use.

Famciclovir is a guanosine analogue antiviral agent that is used for the treatment of various herpesvirus infections, most commonly for herpes zoster. It works by inhibiting the replication of the herpes virus. Famciclovir prevents viral DNA synthesis by inhibiting the viral DNA polymerase and by blocking viral DNA replication. Its active form is penciclovir.

4-Epichlortetracycline is a metabolite of chlortetracycline, which is derived from the Streptomyces genus of bacteria. It is structurally related to tetracycline antibiotics but differs specifically in its epimerization at the fourth position. This alteration results in a product with significantly reduced antibacterial activity compared to its parent compound. The mechanism of action primarily involves ribosomal binding, inhibiting protein synthesis in susceptible bacteria; however, the epimerization here compromises this efficacy.

Penicillin G potassium is a natural penicillin antibiotic with action on bacterial cell wall synthesis and is used for treating severe bacterial infections like meningitis, syphilis, and endocarditis.

Ornidazole is a nitroimidazole antibiotic with action on DNA synthesis disruption in anaerobic bacteria and protozoa and is used for treating infections like amoebiasis, giardiasis, and trichomoniasis.

Flubendazole is a benzimidazole anthelmintic with action on microtubule formation in parasites and is used for treating intestinal worms in humans and animals.

Emtricitabine is an antiviral drug that is used to treat chronic viral hepatitis, which is caused by the hepatitis B and C viruses. The drug blocks the activity of reverse transcriptase, which is an enzyme necessary for the replication of viral RNA in the body. Emtricitabine has been shown to be effective against acute hepatitis B virus infection and chronic hepatitis B virus infection with or without cirrhosis. It also has been shown to be effective against chronic hepatitis C virus infection with or without cirrhosis.

Inhibitor of bacterial cell wall biogenesis; cephalosporin

Cephradine is a first-generation cephalosporin antibiotic with action on bacterial cell wall synthesis and is used for treating bacterial infections like urinary tract infections, respiratory infections, and skin infections.

Inhibitor of protein synthesis; glycylcycline class

Delafloxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating acute bacterial skin and skin structure infections.

Pazufloxacin hydrochloride is a synthetic antibacterial agent, which is derived from the fluoroquinolone class of antibiotics with a broad-spectrum activity against various bacterial pathogens. This compound, sourced through chemical synthesis, functions primarily by inhibiting bacterial DNA gyrase and topoisomerase IV, which are critical enzymes for DNA replication, transcription, repair, and recombination. The inhibition of these enzymes leads to the disruption of bacterial DNA processes, ultimately resulting in bacterial cell death.

STAADIUMTM GalactoZide II is a targeted inhibitor for β-galactosidase producing bacteria. The antibacterial activity of STAADIUMTM GalactoZide II is triggered by the enzyme β-galactosidase which is produced by E.coli (EHEC), thermophilic lactic acid bacteria, and other coliform bacteria. STAADIUMTM GalactoZide II can help to selectively inhibit the growth of E. coli in complex bacterial cultures and canbe used in microbiome studies, food control, environmental safety, hygiene, and clinical diagnostics. STAADIUMTM GalactoZide II is not compatible with some experimental conditions, e.g. pH indicators such as neutral red, indigo stains, and possibly H2S staining. STAADIUMTM GalactoZide II can be added as an enzyme-specific selective supplement to agar plates and as an enrichment agent to broth culture.

Gramicidin S TFA salt is a cyclic peptide antibiotic, which is originally derived from the soil bacterium Bacillus brevis. Its mode of action involves disrupting bacterial cell membranes by integrating into the lipid bilayer, which affects membrane integrity and leads to cell lysis. The unique cyclic dodecapeptide structure allows Gramicidin S to interact specifically with membrane lipids, forming pores that increase permeability and ion flux.In terms of applications, Gramicidin S is primarily used in research settings for studying membrane dynamics and permeability. Its potent antibiotic activity makes it a valuable compound in bacteriological studies, particularly for investigating multi-drug resistance mechanisms and testing novel antimicrobial strategies. Additionally, due to its peptide nature, it serves as a model compound for the design of synthetic analogs aimed at overcoming bacterial resistance.

β-lactam antibiotic of penicillin subclass, which inhibits bacterial cell wall synthesis by targeting the proteoglycan synthesis. Cloxacillin has a narrow spectrum of action and is effective against Gram-positive organisms. Cloxacillin is resistant to the action of β-lactamase and therefore preferentially used for treatment of Staphylococcal infections.

Amicoumacin B is a potent antibiotic, which is isolated from the bacterial species Bacillus pumilus. It acts by inhibiting protein synthesis, targeting the ribosomal 30S subunit and disrupting translational fidelity in bacterial cells. This interference in protein production leads to the effective elimination of various Gram-positive and certain Gram-negative bacteria.

Ketolide; binds bacterial ribosomes and inhibits translation

Nucleoside reverse transcriptase inhibitor; anti-Hepatitis B virus

Novobiocin is an aminocoumarin antibiotic with action on bacterial DNA gyrase to inhibit ATPase activity and is used for treating staphylococcal infections and research on DNA replication.

Amphotericin A is a polyene macrolide antibiotic, which is derived primarily from the soil bacterium *Streptomyces nodosus*. This compound functions by binding to ergosterol, an essential component of fungal cell membranes. This binding creates pores in the membrane, increasing its permeability and ultimately leading to cell death. Unlike its more widely used counterpart Amphotericin B, Amphotericin A is less frequently utilized but is critical in the study and understanding of antifungal activity.

Validoxylamine A is an antibiotic, which is a secondary metabolite produced by certain strains of the Actinomyces species. It functions as a potent inhibitor of the enzyme glucose isomerase, which plays a crucial role in the isomerization of glucose to fructose, an important biochemical reaction in various microbial and plant systems.

Tomopenem is a carbapenem antibiotic, which is a product of synthetic origin with broad-spectrum antibacterial properties. It acts by inhibiting the synthesis of bacterial cell walls through binding to penicillin-binding proteins, thereby disrupting the structural integrity of the cell wall and leading to bacterial cell lysis and death.

A thiopeptide antibiotic produced by the bacterium Streptomyces actuosus. In addition, nosiheptide inhibits bacterial protein biosynthesis by acting during the elongation of the protein.

Enduracidin hydrochloride is an antimicrobial compound, which is a lipopeptide antibiotic derived from the genus Streptomyces, specifically Streptomyces fungicidicus or Streptomyces roseosporus. The compound exerts its antimicrobial activity by inhibiting the synthesis of bacterial cell walls, primarily targeting the lipid II cycle, a critical precursor in the peptidoglycan synthesis pathway. This inhibition disrupts the construction of peptidoglycan layers, ultimately leading to bacterial cell lysis and death.

A broad-spectrum antibiotic of cephalosporin class, which inhibits bacterial cell wall synthesis by targeting the penicillin-binding protein, involved in peptidoglycan synthesis. This third-generation cephalosporin is very active against Pseudomonas species and can also be used to treat bacterial meningitis as it penetrates in the cerebrospinal fluid.

Tylosin tartrate is a macrolide antibiotic with action on bacterial protein synthesis inhibition and is used for treating bacterial infections in livestock and poultry.

Cefpodoxime proxetil is a prodrug of cefpodoxime with action on bacterial cell wall synthesis and is used for treating bacterial infections such as pneumonia, bronchitis, and gonorrhea.

Levamisole is a synthetic imidazothiazole derivative belonging to the family of anthelmintic drugs. It is a nicotinic acetylcholine receptor (nAChR) agonists that binds to nAChRs on the neuromuscular junctions of parasitic worms, mimicking the action of the neurotransmitter acetylcholine. This excessive stimulation of nAChRs leads to persistent depolarization of muscle cells and spastic paralysis to expel of the worms. Levamisole exhibits broad-spectrum activity against various roundworms, whipworms, hookworms, and threadworms.

Chloroquine is a 4-aminoquinolone that is used to prevent and treat malaria, caused by parasitic protozoan from the Plasmodium genus. Chloroquine i a schizonticidal agent and is a widely prescribed antimalarial compound. The antiviral activity of chloroquine in vitro has been reported in 1960’s and recent publications have brought attention to its possible benefits in the treatment of COVID-19 patients, infected with the newly emerged coronavirus (SARS-CoV-2). Current evidence shows that chloroquine inhibits SARS CoV-2 entry in host cells by interfering with endocytosis and affecting the glycoprofile on the S-glycoprotein.

Repromicin is a novel antibiotic, which is derived from a unique strain of actinobacteria. This organism is known for its ability to produce a wide range of bioactive compounds. Repromicin operates by inhibiting bacterial protein synthesis, a mode of action that involves binding to the bacterial ribosome and interfering with the translation process. This leads to an effective halt in bacterial growth and proliferation.

Kanamycin sulfate is a water-soluble antibiotic. Genes encoding kanamycin resistance are commonly used as selection markers in molecular biology .It acts during the translation mechanism in prokaryotic ribosomes to avoid bacterial cell growth.

Cefsulodin sodium salt is a beta lactam antibiotic in the third-generation cephalosporin family that inhibits penicillin-binding proteins (PBPs) to disrupt bacterial cell wall synthesis.

Ledipasvir D-tartrate is an antiviral compound, which is a direct-acting antiviral agent used in the treatment of hepatitis C virus (HCV) infection. It originates from synthetic sources designed to inhibit the replication of specific viral proteins. Ledipasvir functions by targeting the NS5A protein of the hepatitis C virus, a key component necessary for viral replication. By binding to this protein, Ledipasvir disrupts and inhibits the HCV replication complex, effectively suppressing the viral load in patients.

Dapivirine is a non-nucleoside reverse transcriptase inhibitor with action on HIV-1 reverse transcriptase and is used for preventing HIV infection through vaginal rings.

Ofloxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating bacterial infections like pneumonia, urinary tract infections, and skin infections.

Sisomicin is an aminoglycoside antibiotic with action on bacterial protein synthesis inhibition and is used for treating severe bacterial infections resistant to other aminoglycosides.

Antiviral; nonpeptidic HIV-1 protease inhibitor

Neomycin, one of the many oligosaccharide containing antibiotics, is an aminoglycoside antibiotic found in Streptomyces fradiae (Collins, 2006) with wide spectrum, active against Gram-negative Gram-positive bacteria. Neomycin is commony used as a selection marker in cloning, and is therefore used in growth media to select colonies with the neomycin resistance cassette integrated into their genome. Neomycin is a mixture of neomycin B (Framycetin) and its epimer Neomycin C, the latter component accounting for some 5–15% of the mixture.

Taniborbactam is a groundbreaking boronic acid-based beta-lactamase inhibitor, which is a chemically synthesized compound designed to enhance the efficacy of beta-lactam antibiotics. Its mode of action involves the irreversible inhibition of a wide range of beta-lactamase enzymes, including both serine and metallo-beta-lactamases, which are responsible for the antibiotic resistance in many bacterial pathogens. By binding to the active sites of these enzymes, Taniborbactam prevents them from hydrolyzing the beta-lactam ring, thus restoring the antibacterial activity of beta-lactam antibiotics.

Carbomycin is a macrolide antibiotic, which is derived from the bacterium Streptomyces halstedii. This antibiotic functions by binding to the 50S ribosomal subunit, thereby inhibiting bacterial protein synthesis. Through this mechanism, carbomycin effectively disrupts the growth and replication of susceptible bacterial strains, making it a potent tool in combating bacterial infections.

Olaquindox is a quinoxaline derivative antibiotic with action on bacterial growth suppression in the gut and is used for promoting growth and controlling bacterial infections in livestock.

Netilmicin sulfate is an aminoglycoside antibiotic with action on bacterial protein synthesis by binding to the 30S ribosomal subunit and is used for treating severe bacterial infections.

Pristinamycin is a streptogramin antibiotic with action on bacterial protein synthesis by binding to the 50S ribosomal subunit and is used for treating staphylococcal and streptococcal infections, including MRSA.

Voriconazole is a synthetic, lipophilic molecule that is used in the treatment of fungal infections. Voriconazole binds to ergosterol which is the major sterol in the cell wall of fungi and inhibits its synthesis, leading to cell death. This drug binds to the enzyme 14α-demethylase allowing the conversion of lanosterol into ergosterol. As a result, this binding leads to the inhibition of ergosterol synthesis, as well as other sterols that are necessary for fungal growth (e.g., squalene).

Membrane-disrupting agent

Inhibitor of protein synthesis; aminoglycoside

Ampicillin is a β-lactam antibiotic with a broad spectrum of activity against Gram-positive and Gram-negative bacteria. It is used in the treatment of bacterial infections, including those caused by methicillin-resistant Staphylococcus aureus (MRSA), Streptococcus pneumoniae, and Listeria monocytogenes. Ampicillin binds to penicillin-binding proteins in the bacterial cell wall by competitive inhibition. It prevents the formation of an antibiotic-inhibitor complex with the enzyme cell wall synthesis that is required for cell wall biosynthesis, inhibiting protein synthesis and cell division.

Rifaximin is a rifamycin antibiotic with action on bacterial RNA polymerase to inhibit transcription and is used for treating travelers' diarrhea, irritable bowel syndrome, and hepatic encephalopathy.

Rifapentine is a rifamycin antibiotic with action on bacterial RNA polymerase to inhibit transcription and is used for treating active and latent tuberculosis.

Amopyroquine is an antimalarial agent and is used for the treatment of malaria. Its mode of action involves the inhibition of haem polymerase in the parasite, leading to the accumulation of toxic haem

Ceftibuten dihydrate is a third-generation cephalosporin antibiotic with action on bacterial cell wall synthesis and is used for treating respiratory tract infections, otitis media, and urinary tract infections.

Puromycin is active against both prokaryotic and eukaryotic cells. Puromycin resistance gene (pac) is a common choice for the selection of mammalian cells since its first application in 1988, especially for therapeutic proteins in mammalian cells where it was used to produce high levels of protein of interest. Puromycin can also be used as a selection marker for Archea.

Tobramycin used to treat severe infections with gram-negative bacteria and it is often applied in combination with beta-lactams. It has similar antimicrobial effects to gentamicin and is effective against all Enterobacteriacae, but more effective than gentamicin against P. aeruginosa, which is why it is often used for gentamicin-resistant strains, especially in the case of cystic fibrosis.

Anti-viral; NS3/4A protease inhibitor

Nitrofurantoin is an antimicrobial agent, which is a synthetic chemical compound with bactericidal activity. Its source is synthetic, originating from the nitrofuran class of compounds. Nitrofurantoin's mode of action involves the inhibition of essential bacterial enzymes. It is reduced by bacterial flavoproteins to active intermediates, which subsequently alter or disrupt ribosomal proteins, DNA, and other vital macromolecules within bacterial cells, thereby inhibiting key metabolic processes.

Inhibits chaperone protein HSP90; anti-proliferative; antineoplastic

Pefloxacin is a mesylate prodrug that is converted to pefloxacin in the body. The optimum concentration for pefloxacin is 2 µg/mL, and it has been shown to be active against gram-positive bacteria such as Streptococcus pneumoniae, group A beta-hemolytic streptococci, and Enterococcus faecalis. Pefloxacin has also been shown to inhibit the growth of human leukemia cells (HL-60) and drug interactions have been documented with this drug. Pefloxacin is not active against Mycobacterium tuberculosis or Mycobacterium avium complex.

Tenofovir is a nucleoside reverse transcriptase inhibitor (NRTI) with action on viral reverse transcriptase to block replication and is used for treating HIV/AIDS and chronic hepatitis B.

Remdesivir (R)-isomer is a nucleoside analog antiviral with action on RNA-dependent RNA polymerase to inhibit viral replication and is used for treating COVID-19 and other RNA virus infections.

Teicoplanin is related to vancomycin and has similar effects against gram-positive bacteria and anaerobes, and usually requires less frequent administration than vancomycin, but it is less efficient against S. haemolyticus. Due its size and polarity, teicoplanin can’t pass through the membrane of gram-negative bacteria thus it is not active against them. It is used to treat severe infections such as septicemia, endocarditis, bone and joint infections.

Aminoglycoside antibiotic; inhibits protein synthesis by inducing miscoding

Abacavir sulfate is an antiviral drug that belongs to the class of HIV protease inhibitors. It is used in combination with other antiretroviral drugs to treat HIV-1 infection. Abacavir sulfate inhibits viral replication by blocking the activity of HIV-1 protease, which is necessary for the production of new virus particles.
Abacavir sulfate is part of our Bio-X ™ Range. These products are aimed at life science researchers who need high quality ready to use products for assay development, screening or other R&D work. With a solubility datasheet and convenient vials, all of our Bio-X ™ products are in stock across our global warehouses for rapid delivery and ease of use.

Cidofovir is an anti-viral agent that is used to treat Cytomegalovirus (CMV) retinitis in patients with AIDS. This drug suppresses CMV replication by inhibiting viral DNA synthesis.

D-Cycloserine is a antibiotic and NMDA receptor partial agonist with action on bacterial cell wall synthesis and modulation of NMDA receptors and is used for treating tuberculosis and studying neuropsychiatric disorders.

Inhibitor of beta-lactamase; inhibitor of cell wall synthesis; beta-lactam class

Atazanavir is a HIV-1 protease inhibitor, used in the anti-retroviral therapy of adult and sometimes paediatric patients infected with HIV. In in vitro studies with human pulmonary epithelial cells, atazanavir has been studied as a potential inhibitor of SARS-CoV-2 Mpro protease, with the aim of halting viral replication.

Amorolfine is an antifungal drug that inhibits fungal enzymes (D14 reductase and D7-D8 isomerase). Its inhibition has an affect on fungal sterol synthesis pathways, and it depletes ergosterol. This drug can be used as a treatment for inflammatory lesions such as Tinea corporis, Tinea pedis, and Tinea cruris due to its ability to penetrate the skin barrier with ease.

Gatifloxacin is an antibiotic, which is a synthetic fluoroquinolone with broad-spectrum antibacterial activity. Its source lies in its chemical synthesis, designed to inhibit bacterial enzymes necessary for DNA replication. The mode of action involves the inhibition of bacterial DNA gyrase and topoisomerase IV, which are critical enzymes for bacterial DNA replication, transcription, and repair. This dual inhibitory mechanism disrupts bacterial cell division and growth, leading to the eventual eradication of susceptible bacterial strains.

Validamycin A is an antibiotic and fungicide with action as a trehalase inhibitor, disrupting carbohydrate metabolism in fungi and is used for controlling fungal diseases like sheath blight in rice and damping-off in cucumbers.

Cephalosporin antibiotic; interferes with cell wall biosynthesis

Vancomycin hydrochloride (1:1) is a glycopeptide antibiotic with action on bacterial cell wall synthesis and is used for treating severe bacterial infections like septicemia, endocarditis, and skin infections.

Stavudine is an antiviral, reverse transcriptase inhibitor that is used to treat HIV/AIDS. It belongs to the group of nucleoside analogues of thymidine that is converted into stavudine monophosphate. Stavudine works by inhibiting viral replication by preventing the incorporation of viral dNTPs into the growing DNA chain, thus blocking DNA synthesis.

Meayamycin B is a synthetic macrolide, a complex organic compound, which is derived from the natural product FR901464. This compound functions as an antagonist of the spliceosome, the cellular machinery responsible for pre-mRNA splicing. By binding to specific components of the spliceosome, Meayamycin B disrupts the splicing process, leading to the accumulation of unspliced precursor mRNA. This action effectively induces apoptosis in cancer cells, making it a notable candidate for cancer therapy research.

Rifamycin O is a rifamycin antibiotic with action on bacterial RNA polymerase to inhibit transcription and is used for treating tuberculosis and travelers' diarrhea.

Etravirine is a non-nucleoside reverse transcriptase inhibitor (NNRTI) medication used in the treatment of human immunodeficiency virus (HIV) infections. It works by blocking reverse transcriptase, an enzyme essential for replication of the virus, thereby preventing the virus from multiplying and spreading. Etravirine is often used in combination with other antiretroviral drugs to effectively treat HIV/AIDS. It is commonly prescribed for patients with virus strains that are resistant to other NNRTI medications due to mutations that confer resistance- mutations K103N and Y181C. Etravirine is a diarylpyrimidine (DAPY) and has conformational isomerism meaning that it binds reverse transcriptase in an fleible manner, under multiple conformations. The impact of specific point mutations in the virus is therefore lessened.

Inhibitor of viral neuraminidase enzyme, effective against influenza A and B viruses. This antiviral compound inhibits neuraminidase-mediated cleavage of host cell sialic acids, which interact with newly synthesised virions from the host cell. This prevents virion budding from the host, resulting in inhibition of virion release and viral infection overall.

iso-Nystatin is an antifungal compound, which is derived from the bacterium *Streptomyces noursei*. This specific strain of actinobacteria produces polyene macrolide antifungals, and iso-Nystatin is a derivative that exhibits similar bioactivity as its parent compound, Nystatin. Its mode of action is based on binding ergosterol, a crucial component of fungal cell membranes. This binding disrupts the membrane's structural integrity, inducing pore formation, which leads to ion leakage and ultimately cell lysis and fungal cell death.

Potassium clavulanate is a beta-lactamase inhibitor and an antibacterial agent. The presence of potassium clavulanate in culture media inhibits the activity of beta-lactamases, which are enzymes that confer resistance to penicillin and other beta-lactam antibiotics. It also has been shown to be active against bacterial infections such as tuberculosis, sepsis, and pneumonia, where it can inhibit the growth of bacteria by interfering with their ability to form cell walls. Potassium clavulanate is also used as an antimicrobial agent for blood culture technique and antimicrobial treatment.

Sulfasalazine is a disease-modifying anti-rheumatic drug (DMARD) with action on reducing inflammation and immune system activity and is used for treating rheumatoid arthritis and inflammatory bowel disease.

Micafungin, as one of three echinocandina, has been proven to be a successful antifungal therapeutic in treating general Candida fungus infections. The treatment of immunocompromised patients is particularly important as Candida infections cause high mortality rates in patients in intensive care units, receiving chemotherapy, or stem cell transplants. This product acts as an anti-fungal by inhibiting the 1,3-beta-D-glucan synthase enzyme. As a result the production of 1,3-beta-D-glucan, which is crucial to the fungal cell wall, is hindered. Thus, the fungal cell wall loses integrity allowing for osmotic instability and cell lysis to occur.

Aureothricin is a dithiolopyrrolone antibiotic and is used for its antimicrobial properties. It inhibits transcription in bacteria, leading to growth inhibition

Inhibitor of bacterial cell wall biogenesis; penicillin class

Phleomycin HCl is an antibiotic compound derived from *Streptomyces verticillus*, which is known for its robust DNA-cleaving activity. As an antibiotic, it functions primarily by inducing breaks in DNA strands, thereby inhibiting DNA replication and transcription processes. This mechanism of action is particularly effective in targeting rapidly dividing cells, making Phleomycin a valuable tool in molecular biology.