bacterial

Antibiotics are types of antimicrobial products used for the treatment and prevention of bacterial infections. Antibiotics can kill or inhibit bacterial growth. Although the target of an antibiotic is bacteria, some antibiotics also attack fungi and protozoans. However, antibiotics rarely have an effect on viruses. The major mechanism underlying antibiotics is the inhibition or regulation of enzymes involved in cell wall biosynthesis, nucleic acid metabolism and repair, protein synthesis, or disruption of membrane structure. Many of these cellular functions targeted by antibiotics are most active in multiplying cells. Since there is often overlap in these functions between prokaryotic bacterial cells and eukaryotic mammalian cells, it is not surprising that some antibiotics have also been found to be useful as anticancer agents.

MCE supplies a unique collection of 689 antibiotics, including penicillins, cephalosporins, tetracyclines, macrolides, etc. MCE Antibiotics Library is a useful tool for anti-bacterial or anti-cancer drugs discovery.

Antibacterial agents are a group of materials that fight against pathogenic bacteria. Thus, by killing or reducing the metabolic activity of bacteria, their pathogenic effect in the biological environments will be minimized. The most widely used antibacterial agents exert their effects on bacterial cell wall synthesis, protein synthesis, DNA replication and metabolic pathways. However, resistance to antimicrobial agents has become a major source of morbidity and mortality worldwide. The main mechanisms of resistance are limiting uptake of a drug, modification of a drug target, inactivation of a drug, and active efflux of a drug. Therefore, it is an urgent need to develop new drugs targeted at resistant organisms.

MCE offers a unique collection of 1,401 compounds with validated antibacterial activities. MCE antibacterial compound library is an effective tool for drug repurposing screening, combination screening and biological investigation.

Glycomimetics are designed to mimic the structure of natural carbohydrates and modulate their disease-related functions. Macrocyclic glycomimetics are an extremely interesting class of glycomimetics as they occupy space between small and macro molecules. Macrocyclic glycomimetics are mostly represented by naturally occurring molecules derived from marine microorganisms and bacterial or fungal metabolites.

An infection occurs when another organism enters a person’s body and causes disease. The organisms that cause infections are very diverse and can include things like viruses, bacteria, fungi, and parasites. The immune system is an effective barrier against infectious agents.

MCE provides a unique collection of 3,074 anti-infective compounds with anti-bacterial, anti-viral, anti-fungal and anti-parasite activities that can be used for drug screening and other research in anti-microbial area.

Phenolic compounds are usually referred to as a diverse group of naturally occurring compounds with multiple medical properties, such as antioxidants, antimicrobial properties. Those compounds are commonly found in food and plants. They have high synthetic, medicinal and industrial values. Polyphenols are compounds with multiple phenolic functionalities. Naturally occurring polyphenols are known to have biological activities for use as drugs, for example, in diseases like AIDS, heart ailments, ulcer formation, bacterial infection, mutagenesis and neural disorders.

MCE offers a unique collection of 1,207 natural phenol compounds which is a useful tool for drug discovery as an important source of lead compounds.

Programmed cell death pathways, including apoptosis, pyroptosis and necroptosis, are regulated by unique sets of host proteins that coordinate a variety of biological outcomes. Pyroptosis is a highly inflammatory form of programmed cell death that occurs most frequently upon infection with intracellular pathogens and is likely to form part of the antimicrobial response. This process promotes the rapid clearance of various bacterial, viral, fungal and protozoan infections by removing intracellular replication niches and enhancing the host's defensive responses. Pyroptosis has been widely studied in inflammatory and infection disease models. Recently, there are growing evidences that pyroptosis also plays an important role in the development of cancer, cardiovascular diseases and Metabolic disorder, etc.

MCE designs a unique collection of 1,350 pyroptosis-related compounds mainly focusing on the key targets in the pyroptosis signaling pathway and can be used in the research of pyroptosis signal pathway and related diseases.

In the research of covalent inhibitors targeting serine and threonine, scientists have found that the nucleophilicity of these hydroxyl groups is significantly enhanced due to the influence of their surrounding environment. This results in higher activity during catalytic reactions. Aspirin, which targets the non-catalytic domain serine (Ser529 in human COX1) of cyclooxygenase, exerts its anti-inflammatory effect through covalent binding. β-lactam antibiotics, which targets the catalytic domain serine of penicillin-binding proteins, interferes with bacterial cell wall synthesis.

Through careful selection, we constructed a structural filter containing over 110 electrophilic groups. By analyzing the electrophilic fragments selected by the structural filter, we removed any molecules with trivial or undesirable structural features. Ultimately, we obtained 3,300 fragment molecules which can target serine and threonine residues and can be used for fragment-based covalent drug discovery.

Chinese herbal therapy is an important part of Traditional Chinese Medicine (TCM). It has been used for centuries in China, where herbs are considered fundamental therapy for many acute and chronic conditions. Many studies indicated TCM exerted an overall regulatory effect via multi-component and multi-target network. Active components from Traditional Chinese Medicine possess many medicinal properties such as antioxidant, anti-cancer, and anti-bacterial effects, which makes it an important source of new drugs. Nearly 200 modern medicines have been developed either directly or indirectly from the plants used as medicines in China. For example, artemisinin, used in multidrug resistant malaria, was first isolated from the Chinese herb Artemisia annua L. Today, scientists continue to identify compounds in Chinese herbal remedies that may be useful in the development of new therapeutic agents applicable in Western medicine.

MCE designs a unique collection of 2,913 active compounds of Chinese Herbal Medicines. MCE Traditional Chinese Medicine Active Compound Library is a useful tool for discovery new drugs from TCM.

MCE Anti-HA Magnetic Beads are used for immunoprecipitation (IP) of specific HA-tagged proteins expressed in bacterial and mammalian cells and in vitro expression systems.

MCE Anti-GST Magnetic Beads are used for immunoprecipitation (IP) of specific GST-tagged proteins expressed in bacterial and mammalian cells and in vitro expression systems.

MCE Anti-His Magnetic Beads are used for immunoprecipitation (IP) of specific His-tagged proteins expressed in bacterial and mammalian cells and in vitro expression systems.

Kanamycin sulfate is an aminoglycoside antibiotic purified from Streptomyces kanamyceticus. It acts by binding to the 30S subunit of the bacterial ribosome and inhibiting protein synthesis in susceptible bacteria.

MCE Anti-c-Myc Magnetic Beads are used for immunoprecipitation (IP) of specific c-Myc-tagged proteins expressed in bacterial and mammalian cells and in vitro expression systems.

MCE MCE Penicillin-Streptomycin (100×), Sterile is used to prevent bacterial contamination of cell culture due to their effective combined action against gram-positive and gram-negative bacteria.

MCE Anti-Flag Affinity Gel is used for immunoprecipitation (IP) or protein purification of specific Flag-tagged (DYKDDDDK) proteins expressed in bacterial and mammalian cells and in vitro expression systems.

MCE Anti-HA Magnetic Beads (1 μm) are used for immunoprecipitation (IP) of specific HA-tagged proteins expressed in bacterial and mammalian cells andin vitro expression systems.

MCE Gentamicin, Sterile acts by binding to the 30S subunit of the bacterial ribosome leading to inhibition of protein synthesis and death in susceptible bacteria, mainly for gram-negative and gram-positive bacteria.

MCE Penicillin-Streptomycin-Glutamine (100×), sterile is used to prevent bacterial contamination of cell culture due to their effective combined action against gram-positive and gram-negative bacteria.

MCE Anti-c-Myc Magnetic Beads (1 μm) are used for immunoprecipitation (IP) of specific c-Myc-tagged proteins expressed in bacterial and mammalian cells and in vitro expression systems.

MCE Penicillin-Streptomycin-Neomycin (PSN) (100×), Sterile is used to prevent bacterial contamination of cell culture due to their effective combined action against gram-positive and gram-negative bacteria.

MCE Hygromycin B, Sterile is an aminoglycosidic antibiotic purified from Streptomyces hygroscopicus. It acts by binding to the 70S subunit of the bacterial ribosome and inhibiting protein synthesis, leading to the death of bacteria, fungi and mammalian cells.

MCE G418 Selective Antibiotic, Sterile is an aminoglycoside antibiotic produced by Micromonospora rhodorangea. It acts by binding to the 80S subunit of the bacterial ribosome, thus inhibiting protein synthesis in both prokaryotic and eukaryotic cells.

MCE Antibiotic-Antifungal (100 ×), Sterile contains 10 KU/mL of penicillin, 10 mg/mL of streptomycin, and 25 μg/mL of Amphotericin B. The antibiotics penicillin and streptomycin prevent bacterial contamination, and Amphotericin B prevents fungal contamination.

MCE Anti-Flag Magnetic Beads are used for immunoprecipitation (IP) of specific Flag-tagged (DYKDDDDK) proteins expressed in bacterial and mammalian cells and in vitro expression systems, and also suitable for Co-immunoprecipitation and purification of Flag-tagged protein.

MCE Anti-Flag Magnetic Beads are used for immunoprecipitation (IP) of specific Flag-tagged (DYKDDDDK) proteins expressed in bacterial and mammalian cells and in vitro expression systems, and also suitable for Co-immunoprecipitation and purification of Flag-tagged protein.

Polymixin B is a mixture of B1 and B2 polypeptides obtained from different strains of Bacillus polymyxa, with antibacterial activity against gram-negative bacteria. It can bind lipopolysaccharide (LPS) of the outer membrane of gram-negative bacteria and disrupts the cytoplasmic membrane by inducing large pores to allow nucleotide leakage in bacterial walls. This disrupts the permeability of the cytoplasmic membrane.