Enzymes dans les Protéines Recombinantes

Glutathione peroxidase (EC 1.11.1.9) is an enzyme that reduces peroxides to limit oxidative damage, by catalyzing the following reaction:  2 GSH + H2O2 → GS–SG + 2 H2O  One unit of glutathione peroxidase will catalyze the conversion of 1.0 µmole of H2O2 per minute at pH 7.0 and 25 °C in the presence of reduced glutathione. Reduced glutahione is available here.

Diaphorase (lipoyl dehydrogenase, EC 1.8.1.4) is an NAD+/NADH-dependent oxidoreductase. One unit of diaphorase will convert 1.0 μmole NADH into NAD+ the presence of substrate at pH 7.5 and 25 °C.

Cytochrome C oxidase (originally assigned EC 1.9.3.1, now re-assigned EC 7.1.1.9) is an enzyme that catalyzes the following reaction: 4 Fe2+ – cytochrome c + 4 H+ + O2 → 4 Fe3+ – cytochrome c + 2 H2O

Lipoxidase, from glycine max (soybean)

Protein phosphatase 2C is a key enzyme, which is a serine/threonine-specific phosphatase, derived from various organisms including humans, plants, and bacteria. This enzyme plays a pivotal role in cellular signaling by removing phosphate groups from serine and threonine residues on target proteins, a process known as dephosphorylation. This action is crucial for the regulation of diverse cellular functions, including stress responses, cell division, and apoptosis.

Lipoxidase is an enzyme, which is typically sourced from various plant tissues, animals, and some microorganisms. It functions by catalyzing the oxidation of polyunsaturated fatty acids in the presence of oxygen. This enzymatic action results in the formation of lipid hydroperoxides, which are key intermediates in various biochemical pathways, including those involved in cell signaling and the modulation of gene expression.

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. The Lipase 02 from the yeast Candida rugosa has a temperature optimum in the 30 - 50 °C range and pH optimum between pH 7 and 8.

Proteinase, Bacillus subtilis, sutilain is a proteolytic enzyme, which is derived from the bacterium Bacillus subtilis. This enzyme exhibits a serine-type mechanism of action, characterized by its ability to cleave peptide bonds in proteins efficiently. It catalyzes the hydrolysis of proteins into peptides and amino acids, facilitating the breakdown of complex proteins into simpler, soluble forms.

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. The Lipase 01 from the yeast Candida rugosa has a temperature optimum in the 30 - 50 °C range and pH optimum between pH 7 and 8.

Urate Oxidase, also known as uricase, catalizes the following reaction: Uric acid + O2 + H2O → 5-hydroxyisourate + H2O2.

Oxalate Oxidase, freeze-dried, from Wheat is an enzyme preparation which is derived from wheat and functions through the oxidative degradation of oxalate. This enzyme catalyzes the conversion of oxalate into carbon dioxide and hydrogen peroxide, utilizing oxygen as a co-substrate in the process. The activity of Oxalate Oxidase is crucial in biological and biochemical applications where oxalate degradation is required.

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. The CalB01 IA lipase has been immobilized on a hydrophobic carrier by adsorption. The immobilized CalB01 lipase has a temperature optimum in the 40 - 50 °C range and pH optimum between pH 5 and 8.

Aminopeptidase I is a specialized proteolytic enzyme derived from the actinobacterium Streptomyces griseus. This enzyme functions by catalyzing the cleavage of amino acids from the N-terminus of peptides, which plays a pivotal role in protein metabolism and regulation. The source of this enzyme, Streptomyces griseus, is well-regarded for producing a variety of bioactive compounds owing to its rich genetic and biochemical repertoire.

eXrase DNA endonuclease from enGenes is a recombinant endonuclease from Serratia marcescens produced in E. coli. Effectively and efficiently degrades all forms of DNA and RNA, reducing sample viscosity without proteolytic activity. As effective and efficient as other nucleases on the market, eXrase DNA endonuclease is the most cost-effective way to improve proteins yields and improve sample handing. Presented as a ready to use colourless liquid, formulated in Tris buffer at pH 8.0 with 50 % glycerol (v/v). This tech grade version is our most cost effective endonuclease for R&D applications. eXrase DNA endonuclease is suitable for the effective breakdown of nucleic acids in numerous biotech settings:  • Removal of residual host DNA from biotechnological products to meet regulatory standards • Reduction of viscosity and streamlined purification in downstream processing of fermentation procedures. • Reduction of viscosity in in upstream fermentation processes • Extraction and/or synthesis of flavouring nucleotides • Enhanced bioavailability of nucleotides in specific feed products • DNA degradation for the removal or prevention of biofilm formationeXrase DNA endonuclease from enGenes is made by a proprietary microbial fermentation process utilizing Escherichia coli cells. This enzyme facilitates the hydrolysis of phosphodiester bonds in various forms of DNA and RNA, including single-stranded, double-stranded, linear, circular, or supercoiled configurations, yielding smaller oligonucleotides typically composed of 2-4 base pairs. Unit-Definition: One unit (U) of the enzyme is defined as the amount required to digest calf thymus DNA, yielding acid-soluble oligonucleotides equivalent to a ΔA260nm of 1.0 within a 30-minute timeframe at pH 8.0 and 37°C. This standardization allows for consistent measurement of enzymatic activity across different batches.

Luciferase enzymes sourced from Vibrio fischeri

An enzyme that catalyzes the formation and breakage of disulfide bonds in the folding of proteins

One unit will hydrolyse 1.0μmol of 4-nitrophenyl phosphate per minute at 37°C and pH 4.8.  Substrate for enzyme analysis is the 4-nitrophenyl phosphate disodium hexahydrate (EN08508).