Enzimas em Proteínas Recombinantes

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.

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.

20mg/ml aq. solution.  Proteinase K is used for the general digestion of proteins and removal of protein contamination in nucleic acids. Addition of Protease K also stabilizes nucleic acids but degrading any nucleases present. Proteinase K is active in wide range of pH range, in the presence of SDS, urea and Guanidinium chloride at low to moderate concentrations. Proteinase K is also known under names of protease K and endopeptidase K.

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.

Lipase 06 recombinantly expressed in E. coli comes in a freeze-dried formulation. It has its pH optimum at 7 and temp. optimum at 30-45°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 06 was shown to hydrolyze p-Nitrophenyl esters of butyrate (91 % activity compared to octanoate), octanoate (100 %), laurate (13 %), palmitate (1 %), stearate (2 %), arachidate (0.3 %) and behenate (1 %).

Beta-lactamase enzyme targeting beta-lactam antibiotics

Lipase 17 recombinantly expressed in E. coli comes in a spray-dried formulation. It has its pH optimum at 7-8. 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 17 was shown to hydrolyze p-Nitrophenyl esters of butyrate (2 % activity compared to octanoate), octanoate (100 %), laurate (20 %), palmitate (3 %), stearate (1 %), arachidate (1 %) and behenate (1 %).

Aldehyde dehydrogenase (EC 1.2.1.3) is the enzyme that catalyzes oxidation of aldehydes to carboxilic acids, using NAD+ as a cofactor in the following reaction: R-CHO + NAD+ + H2O → R-COOH + NADH + H+    One enzyme unit will oxidize 1.0 μmole of acetaldehyde to acetic acid per min at 25 °C at pH 8.0 in the presence of β-NAD+, potassium and thiols.

Lipase 14 recombinantly expressed in E. coli comes in a spray-dried formulation. It has its pH optimum at 6-8 and temp. optimum at 30-40°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 14 was shown to hydrolyze p-Nitrophenyl esters of butyrate (74 % activity compared to octanoate), octanoate (100 %), laurate (8 %), palmitate (5 %), stearate (4 %), arachidate (1 %) and behenate (0.6 %).

Phospholipases D belong to the family of esterases and act on phosphatidylcholine in the plasma membrane to release phosphatidic acid (PA) and choline. Phospholipases D can be used as versatile tools in hydrolysis and transphosphatidylation reactions for industrial, chemical and food applications.Spray dried version of EPLD840.6_R

3-Oxo-5β-steroid Δ4-dehydrogenase is an enzyme crucial in the metabolic pathway of steroid hormones, facilitating the conversion of androgens and estrogens. It is predominantly found in the liver, but also in other tissues where steroid biosynthesis occurs. This enzyme catalyzes the dehydrogenation at the Δ4 position of 3-oxo-5β-steroids, playing a significant role in the modulation and regulation of steroid hormone levels within cells.

α-Glucosidase (EC 3.2.1.20) is a glycoside hydrolase enzyme that hydrolyzes α-1,4-linked D-glucose residues (e.g. in starch or oligosaccharides)  to produce α-D-glucose. One unit of α-Glucosidase will release 1.0 µmole of p-nitrophenol from the chromogenic substrate mimic 4-nitrophenyl α-D-glucopyranoside per minute at pH 6.8 and 37 °C.

Bromelain is a group of proteolytic enzymes found in the fruit and stem of pineapple plants. It is used in a topical drug product approved by the FDA to treat severe burns. However, its oral consumption to treat sinusitis, postoperative pain after the extraction of wisdom teeth, and osteoarthritis is still being researched.

Alpha-L-iduronidase is a glycoside hydrolase enzyme that cleaves the non-reducing, terminal alpha-L-iduronic acid residues from polysaccharides and oligosaccharides. Alpha-L-iduronidase is involved in the lysosomal degradation of glycosaminoglycans and its deficiency leads to the accumulation of dermatan sulphate and heparan sulphate in tissues, a condition known as mucopolysaccharidosis I (MPS I). Alpha-L-iduronidase activity can be detected and quantified in an assay using a fluorogenic substrate 4MU-alpha-L-idopyranosiduronic acid. Alpha-L-iduronidase is also used in a 2-step assay for Hunter syndrome (MPS II) testing in combination with 4-MU-alpha-L-idopyranosiduronic acid 2-sulphate.
This enzyme is supplied as a 2 mg/mL aqueous solution in 25 mM sodium acetate, 150 mM NaCl, 50% glycerol, pH 5.0 from a bacterial source, recombinantly expressed in Escherichia coli (see application notes for more details). Alpha-L-iduronidase is also available as lyophilisate (FA181881)

Lipase 37 recombinantly expressed in E. coli comes in a spray-dried formulation. It has its pH optimum at 8-9 and temp. optimum at <50°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 37 was shown to hydrolyze p-Nitrophenyl esters of butyrate (48 % activity), octanoate (100 %), laurate (85 %), palmitate (5 %) and stearate (1 %).

Dihydrofolate reductase (DHFR, 1.5.1.3) is a NADP+/NADPH-dependent oxidoreductase, that reduces dihydrofolate to tetrahydrofolate in the following reaction: dihydrofolate + NADPH + H+ ⇌ tetrahydrofolate + NADP+One unit of dihydrofolate reductase will convert 1.0 μmole of dihydrofolic acid into tetrahydrofolic acid in 1 minute at pH 7.5, 22°C and presence of NADPH.

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. Immobilized lipases can be utilized in various reaction types, and are optimal for all reactions in organic solvents or solvent-free systems.

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 from the yeast Y. lipolytica has a temperature optimum in the 30 - 40 °C range and pH optimum between pH 7 and 8.

Collagenase is an enzymes that is responsible for breaking peptide bonds in collagen

Isoamylase (also known as debranching enzyme, systemic name glycogen α-1,6-glucanohydrolase; EC 3.2.1.68) is the enzyme that cleaves α-1,6-glucosidic branch linkages in carbohydrates, namely amylopectin or glycogen.

Lipase 64 recombinantly expressed in E. coli comes in a spray-dried formulation. It has its pH optimum at 7 and temp. optimum at 40-50°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 64 was shown to hydrolyze p-Nitrophenyl esters of butyrate (100 % activity), octanoate (0.5 %) and laurate (0.1 %).

Elastase (EC 3.4. 21.36) is a serine protease that breaks down elastin fibers. One unit of Elastase release 1 nmol of p-nitrophenol per sec from BOC-L-alanine p-nitrophenyl ester at pH 6.5 and 37°C