Antibiotiques

<p>Tosufloxacin toluenesulfonate hydrate is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating bacterial infections, particularly respiratory infections.</p>

<p>Erythromycinacistrate is a macrolide antibiotic, which is derived from the bacterium *Saccharopolyspora erythraea*. Its mode of action involves binding to the 50S ribosomal subunit of susceptible bacteria, thereby inhibiting protein synthesis. This action effectively halts bacterial growth and replication, making it particularly effective against a wide range of Gram-positive and some Gram-negative bacteria.</p>

<p>Anthracycline antibiotic with potent anti-tumoral activity. The compound interferes with DNA replication and RNA transcription since it intercalates between the base pairs of nucleic acids. It also inhibits the topoisomerase II, proteasome and generates free radicals, which leads to cell death of treated cells. Moreover, daunorubicin triggers apoptosis trough the stimulation of ceramide synthesis. It has been used as chemotherapy agent for the treatment of myeloid leukaemia (AML) and acute lymphocytic leukaemia (ALL).</p>

<p>Antibiotic; anti-protozoal; anti-helmintic; protein synthesis inhibitor</p>

<p>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.</p>

Cefepime dihydrochloride monohydrate is a fourth-generation cephalosporin antibiotic with action on bacterial cell wall synthesis and is used for treating severe bacterial infections, including pneumonia and urinary tract infections.

<p>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.</p>

<p>Cefotaxime sodium is a broad-spectrum cephalosporin antibiotic, which is a semisynthetic derivative of cephalosporin C obtained from the mold Acremonium. This compound functions by inhibiting bacterial cell wall synthesis, which it achieves through binding to and deactivating penicillin-binding proteins (PBPs) located on the inner membrane of the bacterial cell wall. This action prevents the cross-linking of peptidoglycan chains, leading to cell lysis and bacterial death, primarily affecting rapidly dividing cells.</p>

<p>Inhibitor of protein synthesis; aminoglycoside</p>

<p>Chemoterapeutic agent; DNA crosslinker</p>

<p>Nystatin is an antifungal compound, which is produced by the bacterium *Streptomyces noursei*. It functions by binding to ergosterol, a crucial component of fungal cell membranes, creating pores that lead to increased membrane permeability. This disruption results in the leakage of essential cellular components, ultimately causing cell death.</p>

<p>Omadacycline tosylate is a aminomethylcycline antibiotic with action on bacterial protein synthesis inhibition and is used for treating community-acquired bacterial pneumonia and skin infections.</p>

<p>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.</p>

<p>Azithromycin N-oxide is a macrolide antibiotic derivative and is used for research purposes. Its mode of action is similar to azithromycin.</p>

<p>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.</p>

<p>Ranimycin is an antibiotic, which is derived from a natural microbial source. It exhibits bactericidal activity by inhibiting bacterial protein synthesis, thereby preventing bacterial cell growth and proliferation. This disruption of protein synthesis is achieved through binding to the bacterial ribosome, effectively halting the process of translating mRNA into vital bacterial proteins, which are essential for their survival and replication.</p>

<p>A semi-synthetic beta-lactamase inhibitor</p>

<p>Florfenicol is a broad-spectrum antibiotic used for the treatment of various bacteria infections. This drug is used in veterinary medicine and to treat animals with those infections. This drug works by inhibiting bacteria synthesis. It is a fluorinated synthetic analog of thiamphenicol.</p>

<p>Antibiotic; anti-protozoal; anti-helmintic; protein synthesis inhibitor</p>

<p>Inhibitor of cell wall biogenesis; glycopeptide antibiotic</p>

<p>Fluoroquinolone; gyrase inhibitor</p>

<p>Norfloxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating urinary tract infections and gonorrhea.</p>

<p>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.</p>

<p>Antibiotic of anthracycline class; DNA synthesis inhibitor</p>

<p>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.</p>

<p>Inhibitor of inosine monophosphate dehydrogenase; immunosuppressant</p>

<p>Carumonam disodium is a monobactam antibiotic, which is derived from microbial fermentation processes. Its mode of action involves binding to penicillin-binding proteins (PBPs) of susceptible Gram-negative bacteria. This binding inhibits the final transpeptidation step of peptidoglycan synthesis in the bacterial cell wall, leading to cell lysis and death.</p>

<p>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.</p>

<p>Inhibitor of cell-wall synthesis; carbapenem class</p>

<p>5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate is an antibacterial compound with a broad spectrum of activity against Gram-positive and Gram-negative bacteria. It is active against strains resistant to other antibiotics, such as, tetracycline and penicillin. 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diamine 2-hydroxypropanoate has been shown to be effective in vitro against Campylobacter jejuni - the most common cause of bacterial gastroenteritis in humans. The compound also inhibits the growth cycle of Campylobacter jejuni by arresting the cells at the G1 phase. The molecule has been shown to inhibit DNA synthesis in E. coli and S. typhimurium with IC50 values of 1 ÎŒM and 0.8 ÎŒM respectively. This molecule has been tested for its surface active properties and it can be used as an additive in personal care products for improved wetting and spreading on surfaces. The compound is also researched for its antifungal efficacy against Candida albicans by inhibiting the growth cycle of the fungus.</p>

<p>Membrane-disrupting agent</p>

<p>Exhibits antitumour activity against L1210 and P388 leukemias and B16 melanoma</p>

<p>Telavancin HCl is a lipoglycopeptide antibiotic with action on bacterial cell wall synthesis and membrane integrity and is used for treating complicated skin infections and hospital-acquired pneumonia caused by gram-positive bacteria.</p>

Ormetoprim is an antibacterial drug used in veterinary medicine to treat several bacterial infections in animals. This drug is a dihydrofolate reductase inhibitor and disrupts DNA and RNA synthesis in bacteria.

<p>Gentamicin C1a is an aminoglycoside antibiotic, which is a secondary metabolite derived from the bacterium Micromonospora. This antibiotic functions through a mode of action that involves binding to the 30S subunit of bacterial ribosomes. This binding disrupts protein synthesis by causing misreading of the mRNA, ultimately leading to inhibition of bacterial growth and cellular death.</p>

<p>Delamanid is a second-line antimicrobial agent, which is a synthetic derivative of the nitro-dihydro-imidazooxazole compound. Delamanid originates from a laboratory synthesis designed to target and inhibit specific components of bacterial cell wall synthesis. The mode of action involves the inhibition of mycolic acid synthesis, which is critical for the maintenance and construction of the cell wall in Mycobacterium tuberculosis. This inhibition disrupts bacterial cell wall integrity, ultimately exerting a bactericidal effect against actively replicating and dormant mycobacterial cells.</p>

<p>Herbicidin E is a potent herbicidal compound, derived from blue-green algae, with a biochemical mode of action focused on inhibiting photosynthetic electron transport. It effectively disrupts the photosynthetic process by binding to specific sites within the chloroplasts of target plants, impairing their ability to convert light energy into chemical energy. This leads to a depletion of essential energy reserves, resulting in the controlled demise of the plant.</p>

<p>Cefotaxime is a third-generation cephalosporin antibiotic with action on bacterial cell wall synthesis and is used for treating severe bacterial infections like meningitis and sepsis.</p>

<p>Danofloxacin mesylate is a mesylate salt form of danofloxacin with similar action and applications as danofloxacin.</p>

<p>Inhibitor of protein synthesis; lincosamide</p>

<p>Nitrocycline is a broad-spectrum antibiotic, which is a synthetic derivative of tetracycline with enhanced antibacterial properties. As a chemically synthesized compound, nitrocycline has been engineered to overcome resistance mechanisms common in bacterial pathogens. Its mode of action involves the inhibition of protein synthesis, achieved by binding to the 30S ribosomal subunit, effectively preventing the addition of new amino acids to nascent peptide chains. This binding action interrupts bacterial growth and replication, providing robust activity against both Gram-positive and Gram-negative bacteria.</p>

<p>Nifurquinazol is an antimicrobial agent, which is a synthetic compound derived from the nitrofuran class of antibiotics. Its mode of action involves inhibition of bacterial enzymes critical for DNA and protein synthesis, thereby interfering with microbial cell replication and survival.</p>

<p>Piperacillin sodium, pharma grade is a pharmaceutical-grade beta-lactam antibiotic with action on bacterial cell wall synthesis and is used for research and pharmaceutical applications.</p>

<p>Midecamycin is a macrolide antibiotic with action on bacterial protein synthesis by binding to the 50S ribosomal subunit and is used for treating respiratory tract and skin infections.</p>

<p>Polypeptide antibiotic used as a feed additive</p>

<p>Dirithromycin is a macrolide glycopeptide antibiotic with action on bacterial protein synthesis inhibition and is used for treating respiratory, skin, and other bacterial infections.</p>

<p>3’(6’)-Dehydroclindamycin phosphate is a semi-synthetic compound and a impurity of clindamycin. This in turn is prepared from lincomycin. It has antibacterial and antiviral properties</p>

<p>Protein synthesis inhibitor; tetracycline class</p>

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

<p>Inhibitor of isoleucyl-tRNA synthetase; inhibitor of protein synthesis</p>

<p>Inhibitor of cell wall biogenesis; glycopeptide antibiotic</p>

<p>Aminoglycoside antibiotic; inhibits protein synthesis by inducing miscoding</p>

<p>Antibiotic; anti-protozoal; anti-helmintic; protein synthesis inhibitor</p>

<p>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.</p>

<p>Lincomycin 2-Phosphate is a lincosamide antibiotic derivative with a mode of action that inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit. It is used for treating bacterial infections.</p>

<p>26-Hydroxyfusidic acid is a steroid antibiotic, which is derived from the Fusidium coccineum fungus. It exhibits its antibacterial effects by inhibiting bacterial protein synthesis. Specifically, it targets the bacterial elongation factor G (EF-G), a critical component in the translocation step during protein elongation, ultimately stalling bacterial growth.</p>

<p>A fluoroquinolone antibiotic which inhibits nucleic acid synthesis by targeting the DNA gyrase and topoisomerase IV. This second-generation fluoroquinolone has a broad spectrum of action and is more effective against Gram-negative bacteria.</p>

Amphotericin B is a macrocycle antibiotic first isolated from Streptomyces nodosus. Its antifungal activity is exerted by interacting with the fungal membrane, mainly ergosterol, and inducing pore formation. The increase in membrane permeability causes loss of ions and cell death. The C-2’ hydroxyl residue of the mycosamine carbohydrate moiety in the structure seems to have a major role in binding to ergosterol. It is used in cell culture to prevent growth of microbial contaminants, such as yeast and fungi. It is recommended by the WHO and CDC as an antifungal component for VTM at a concentration of 250ug/ml.

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

<p>Gentamicin C2a sulfate is one epimeric form of the aminoglycoside antibiotic gentamicin (a.k.a. gentamycin). Gentamicin interferes with the correct protein production in bacterial cells, by binding to the 16s rRNA at the 30s ribosomal subunit. Gentamicin is a natural mixture of four congeners, one of which is gentamicin C2a. Gentamicin is active against clinically relevant aerobic gram-negative bacteria. Gentamicin C2a has been shown to be biodegradable in the environment, to some extent.</p>

<p>Inhibitor of protein synthesis; aminocyclitol class</p>

<p>Broad spectrum, long-acting and lipid soluble tetracycline antibody</p>

<p>Ertapenem sodium is a carbapenem antibiotic with action on bacterial cell wall synthesis and is used for treating severe bacterial infections like intra-abdominal infections and pneumonia.</p>

<p>Fementation intermediate of Oritavancin</p>

<p>Inducer of DNA strand breaks; glycopeptide antibiotic, anti-neoplastic</p>

<p>Avibactam sodium is a β-lactamase inhibitor and is used for the treatment of complicated intra-abdominal and urinary tract infections in combination with ceftazidime. Its mode of action is similar to avibactam free acid</p>

<p>Difloxacin is a fluoroquinolone antibiotic, which is a synthetic compound derived from chemical synthesis methods. Its source involves complex organic chemistry that modifies the quinolone backbone to enhance its antibacterial properties. Difloxacin functions by inhibiting bacterial DNA gyrase and topoisomerase IV, which are critical enzymes involved in DNA replication, transcription, and repair. This inhibition leads to the prevention of cellular division and ultimately results in bacterial cell death.</p>

<p>Ethambutol 2HCl is a bacteriostatic antimycobacterial agent with action on arabinosyl transferases to inhibit cell wall synthesis and is used for treating tuberculosis in combination with other antibiotics.</p>

<p>Inhibitor of DNA replication; aminoglycoside class</p>

<p>Cefatrizine propylene glycol is a cephalosporin antibiotic with action against gram-positive and gram-negative bacteria and is used for treating respiratory and skin infections.</p>

<p>Tosufloxacin is a fluoroquinolone antibiotic that inhibits DNA gyrase and topoisomerase IV, which are enzymes that maintain the integrity of bacterial DNA. It binds to bacterial 16S ribosomal RNA and inhibits protein synthesis, leading to cell death by inhibiting the production of proteins vital for cell division. Tosufloxacin has been shown to be effective against a variety of bacterial infections.</p>

<p>Tilmicosin is a macrolide antibiotic that is used in veterinary medicine. It is used to treat bovine respiratory disease and inhibits bacterial growth by binding to the 50S ribosomal subunit of the bacteria resulting in reduced protein synthesis.</p>

<p>Antibacterial used in treatment of UTI and respiratory tract infections</p>

<p>Streptomycin sulfate is an antibiotic that inhibits the growth of bacteria by binding to the ribosomal subunit and interfering with protein synthesis. It is used in culture media for the production of human antibodies as well as in drug therapy for methicillin-resistant staphylococcus. Streptomycin sulfate has a high specific activity and low sensitivity, but it also has a low solubility in water. The active form of streptomycin sulfate is streptomycin A, which is produced by the addition of a phenyl ring to neomycin sulfate. In plant roots, streptomycin sulfate inhibits cyanogenic glycosides from being hydrolyzed into hydrogen cyanide (HCN) and benzaldehyde.</p>

<p>Inhibitor of cell-wall synthesis; carbapenem class</p>

<p>Netropsin dihydrochloride is a pyrrole-amidine antibiotic with action on AT-rich sequences of DNA to inhibit replication and is used for research on DNA-binding properties and antiviral activity.</p>

<p>Griselimycin is an antibiotic, which is derived from the bacterial genus *Streptomyces*. This compound exhibits its mode of action by targeting bacterial protein synthesis, specifically binding to the DNA polymerase sliding clamp, thereby inhibiting replication and cell division in a range of bacterial pathogens. Griselimycin has been the focus of renewed scientific interest due to its potent activity against Mycobacterium tuberculosis, including multi-drug-resistant strains. The compound’s unique mode of action makes it a promising candidate for further development in the treatment of tuberculosis and potentially other bacterial infections that have developed resistance to more commonly used antibiotics. Advances in understanding its biosynthesis have facilitated semi-synthetic modifications, potentially enhancing its pharmacokinetic properties and antimicrobial spectrum. The applications of Griselimycin extend to research contexts where understanding resistance mechanisms and novel antibiotic development are critical. Continued exploration of this compound may contribute significantly to addressing the global challenge of antibiotic resistance.</p>

<p>2,4-Diacetylphloroglucinol is a natural phenol produced by certain bacteria, used for its biocontrol properties against plant pathogens.</p>

<p>Dequalinium chloride is a quaternary ammonium compound that has been discovered to be an inhibitor of the cytopathic effects of some syndrome viruses. It is able to inhibit the replication of the virus in various clinical isolates and in cell culture models. Dequalinium chloride also inhibits acetylcholine receptor-mediated endocytosis, which is one of the mechanisms by which cells resist infection. The mechanism by which dequalinium chloride inhibits acetylcholine receptor-mediated endocytosis is not yet known, but it has been suggested that it might be due to its inhibitory activity on mitochondrial uncoupler proteins. This property may make dequalinium chloride an effective treatment against bacterial infections and respiratory diseases such as cystic fibrosis and asthma.</p>

<p>Fleroxacin is a fluoroquinolone antibiotic with action on bacterial DNA gyrase and topoisomerase IV and is used for treating respiratory, urinary, and gastrointestinal infections.</p>

<p>Lysostaphin is an antimicrobial enzyme with a mode of action that cleaves the cell wall of Staphylococcus aureus. It is used for treating staphylococcal infections and in research applications.</p>

<p>Enrofloxacin lactate is a synthetic antimicrobial agent, which is derived from the fluoroquinolone class of antibiotics. It is sourced through chemical synthesis, wherein the base compound, enrofloxacin, is combined with lactate to enhance its pharmacokinetic properties, particularly solubility and bioavailability. Its mode of action is the inhibition of bacterial DNA gyrase and topoisomerase IV, enzymes crucial for DNA replication, transcription, and repair in susceptible bacteria. This interference ultimately leads to bacterial cell death, making enrofloxacin lactate a bactericidal agent.</p>

<p>Antineoplastic antibiotic; RNA synthesis inhibitor</p>