Enzymes dans les Protéines Recombinantes

<p>Trypsin (EC 3.4.21.4) is a protease that hydrolyses proteins by cleaving the peptide bond at the carboxyl side of the positively charged amino acid (Lysine or Arginine). Trypsin belongs to a family of serine proteases, as it has a serine in its active site.</p>

<p>Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces. Lipases/esterases can be used as versatile tools in hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications.</p>

<p>Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces. Lipases/esterases can be used as versatile tools in hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications.</p>

<p>Alpha Amylase is an enzyme that catalyses hydrolysis of large polysacharides into smaller fragments. Alpha amylase targets alpha bonds of 1→4 glycosidic linkages of poly- and oligosaccharides with three or more D-glucose units. Systematic name of alpha-amylase is 4-α-D-glucan glucanohydrolase, EC 3.2.1.1. One unit of Alpha Amylase will produce 1.0 mg of maltose from starch in 1 minute at pH 4.9 and 40 °C.</p>

<p>Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces. Lipases/esterases can be used as versatile tools in hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications.</p>

<p>CalB 10 is an industrial enzyme, specifically a lipase, which is derived from microbial sources, most commonly expressing the lipase B from Candida antarctica. It operates through the hydrolysis of ester bonds in lipids, enabling the conversion of triglycerides into glycerol and free fatty acids. This catalytic action is facilitated via its active site, where the nucleophilic serine residue attacks the carbonyl carbon of the substrate, forming a tetrahedral intermediate that eventually results in bond cleavage and product release.</p>

<p>Lipase 70 recombinantly expressed in E. coli comes in a spray-dried formulation. It has its pH optimum at 6-8 and temp. optimum at 35-45°C. Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces catalyzing hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications. Lipase 70 was shown to hydrolyze p-Nitrophenyl esters of butyrate (100 % activity), octanoate (62 %), laurate (15 %), palmitate (4 %), stearate (3 %), arachidate (2 %) and behenate (0.2 %).</p>

<p>Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces. Lipases/esterases can be used as versatile tools in hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications.</p>

<p>Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces. Lipases/esterases can be used as versatile tools in hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications.</p>

<p>Xylanase (Endo-1,4-β-xylanase, 1,4-β-D-Xylanxylanohydrolase, systematic name 4-β-D-xylan xylanohydrolase; EC 3.2.1.8) is an enzyme that digests polysaccharide xylan by hydrolyzing (1→4)-β-D-xylosidic linkages. One unit of Xylanase will hydrolyze 1.0 μmole of chromogenic substrate mimic per minute (available here) under optimal reaction conditions.</p>

<p>Glucose oxidase is an enzyme thata catalyses the rapid conversion of glucose into non-fermentable gluconic acid in the presence of oxygen (O2). Its used is widely expanded with many applications in the chemical and pharmaceutical industry, food and beverage, clinical studies and biotechnology, among others. It medical diagnosis, glucose oxidase serves as a biosensor for detecting and determining the different levels of glucose in blood samples.</p>

<p>Ready to use beta-lactamase solution targeting beta-lactam antibiotics such as penicillins, carbapenems and cephalosporins. According to US Pharmacopeia (USP &lt;71&gt;) and EP, LacBusterTM-L is suitable for sterility testing methods such as membrane filtration and direct inoculation.</p>

<p>A general purpose growth medium supplemented with LacBuster™ to effectively neutralize beta-lactam antibiotics. This product is suitable for the cultivation of a wide variety of microorganisms for environmental monitoring within the pharmaceutical industry and for high performance monitoring of your isolators and clean rooms during beta lactam manufacture</p>

<p>Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces. Lipases/esterases can be used as versatile tools in hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications.</p>

<p>LacBuster™-S 50 is a beta-lactamase formulation, which is an enzyme of microbial origin with the ability to hydrolyze beta-lactam antibiotics. This enzymatic product is derived from specific bacterial species known for their resistance mechanisms, providing a robust capability to deactivate compounds such as penicillins and cephalosporins. Its mode of action involves the cleavage of the beta-lactam ring, a crucial structural component of these antibiotics, effectively neutralizing their antibacterial properties.</p>

<p>Sphingomyelinase (SMase, Sphingomyelin phosphodiesterase, systematic name sphingomyelin cholinephosphohydrolase; EC 3.1.4.12) is an enzyme that hydrolyses sphingomyelin into phosphocholine and ceramide. One unit of sphingomyelinase will hydrolyze 1.0 µmole of chromogenic substrate analogue per minute at pH 7.4 and 37 °C.</p>

<p>Lipases belong to the family of esterases and naturally act on triglycerides at lipid-water interfaces. Lipases/esterases can be used as versatile tools in hydrolytic reactions, esterifications and transesterification reactions in industrial and food applications.</p>

<p>Endoglycosidase H (systematic name glycopeptide-D-mannosyl-N4-(N-acetyl-D-glucosaminyl)2-asparagine 1,4-N-acetyl-β-glucosaminohydrolase, EC 3.2.1.96) is a highly specific enzyme, that cleaves asparagine-linked mannose rich oligosaccharides. One unit of Endoglycosidase H will remove &gt;95% of the carbohydrate from 10μg of denatured RNase B in 1 hour at 37°C in a total reaction volume of 10μl.The product EEH01.7 is available as a large-scale bulk supply of liquid enzyme solution and is intended for use in the chemical, diagnostic, pharmaceutical and related industries.For removal of all N-linked carbohydrates from proteins see Cymit Quimica's PNGase F enzymes (PNG01.3 - vials for research and PNG01.7 - large-scale bulk supply)</p>

<p>DNA ligase (ATP) is an enzyme (EC 6.5.1.1) that ligates DNA strands, repairing nicks in double-standed DNA and coupling blunt-ended or cohesive DNA fragments. It requires 3′ hydroxyl and 5′ phosphate nucleoside ends for ligation and ATP as a cofactor.</p>

<p>L-Leucine dehydrogenase (Leucine dehydrogenase, systematic name L-leucine:NAD+ oxidoreductase (deaminating); EC 1.4.1.9) is an enzyme that catalyzes the following reaction:  L-leucine + H2O + NAD+ ⇌ 4-methyl-2-oxopentanoate + NH3 + NADH + H+  One unit of L-Leucine dehydrogenase will convert 1.0 µmole of L‑leucine into 4-methyl-2-oxopentanoate per min at pH 10.5 and 37 °C in the presence of NAD+. The enzyme requires NAD+ as a cofactor, it is available here.</p>