Metabolism research

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facet applications:Metabolism research

facet content type:Protocol

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Lipopolysaccharides (LPS) are characteristic components of the cell wall of Gram negative bacteria; they are not found in Gram positive bacteria. They are localized in the outer layer of the membrane and are, in noncapsulated strains, exposed on the cell

透明质酸酶的酶法测定 (3.2.1.35)

在测定透明质酸酶活性时，使用了一种在600 nm处的比浊测定法进行测定。在pH 5.35、37 °C下，一单位的透明质酸酶活性可每分钟引起0.330的吸光值改变。

质谱代谢物文库实验方案

质谱代谢物文库（MSMLS）是一系列广泛存在于初级代谢的高质量小生化分子。其皆为高纯度（> 95％）化合物，并以经济、即用的形式提供。

Procedure for Enzymatic Assay of α-Chymotrypsin (EC 3.4.21.1)

Follow our procedure for the determination of a chymotrypsin activity. This enzymatic assay of alpha chymotrypsin guides you through the entire process and necessary calculations.

Enzymatic Assay of Deoxyribonuclease I (EC 3.1.21.1)

To standardize a procedure for the enzymatic assay of Deoxyribonuclease I.

Enzymatic Assay: Glucose Oxidase

Glucose oxidase activity measured via continuous spectrophotometric assay at 500 nm, indicating glucose oxidation rate.

Enzymatic Assay of Hyaluronidase (3.2.1.35)

To measure hyaluronidase activity, a turbidimetric determination assay is used at 600 nm. One unit of hyaluronidase activity will cause a change in absorbance of 0.330 per minute at pH 5.35 at 37 °C.

Enzymatic Assay of Lysozyme (EC 3.2.1.17)

This enzymatic rate determination may be used for Lysozyme products. It is not to be used to assay recombinant or insoluble Lysozyme on agarose.

酸性磷酸酶的酶促测定（EC 3.1.3.2）

在测定酸性磷酸酶活性时，本操作流程使用对硝基苯基磷酸盐进行比色法测定。酶活性是使用分光光度计在410 nm处测定的。

纤维素酶的酶学测定

该实验方案使用分光光度法测定纤维素酶活性。黑曲霉纤维素酶催化内-1,4-β-D-糖苷键的水解。

使用FALGPA（N-（3- [2-呋喃基]丙烯酰基）-Leu-Gly-Pro-Ala）进行的胶原酶酶法检测（EC 3.4.24.3）

在测定胶原酶活性时，使用N-（3-[2-呋喃基]丙烯酰基）-Leu-Gly-Pro-Ala在345nm处进行连续分光光度法测定。胶原酶水解胶原肽键。

脱氧核糖核酸酶I(EC 3.1.21.1)的酶促测定

建立脱氧核糖核酸酶I酶促测定的标准化操作流程。

溶菌酶的酶学测定（EC 3.2.1.17）

该酶速率测定可用于溶菌酶产物。它不适用于在测定在琼脂糖上的重组型或不溶性溶菌酶。

胃蛋白酶的酶法测定（3.4.23.1）

本方法可用于以血红蛋白为底物的胃蛋白酶活性测定。这是一种分光光度速率终止测定法。

以过氧化物酶 (EC 1.11.1.7) 2,2'-连氮基-双（3-乙基苯并噻唑啉-6-磺酸）为基质的酶分析

建立以 2,2'-连氮基-双（3-乙基苯并噻唑啉-6-磺酸）为基质的过氧化物酶测定方法。

胰蛋白酶（EC 3.4.21.4）的酶学测定方案

本方案适用于使用Nα-苯甲酰基-L-精氨酸乙酯（BAEE）作为底物测定胰蛋白酶活性。本方案是基于连续分光光度速率测定（A253，光程= 1cm）方案：

Enzymatic Assay of Alcohol Dehydrogenase (EC 1.1.1.1)

To measure alcohol dehydrogenase activity, this assay uses β-nicotinamide adenine dinucleotide phosphate and a continuous spectrophotometric rate determination at 340 nm.

Enzymatic Assay of Cellulase

To standardize an enzymatic assay procedure of cellulase.

Enzymatic Assay of Collagenase (EC 3.4.24.3) using FALGPA (N-(3-[2-Furyl]acryloyl)-Leu-Gly-Pro-Ala)

To measure collagenase activity, N-(3-[2-Furyl]acryloyl)-Leu-Gly-Pro-Ala is used in a continuous spectrophotometric rate determination at 345 nm. Collagenase hydrolyzes collagen peptide bonds.

Enzymatic Assay of Peroxidase (EC 1.11.1.7) 2,2'-Azino-bis(3-Ethylbenzthiazoline-6-Sulfonic Acid) as a Substrate

To standardize a procedure for the assay of Peroxidase using 2,2'-Azino-bis(3-Ethylbenzthiazoline-6-Sulfonic Acid) as a substrate.

Trypsin Assay Procedure (EC 3.4.21.4)

Continuous spectrophotometric rate determination method using BAEE substrate measures trypsin activity, essential for enzyme characterization.

MS Metabolite Library Protocol

MSMLS™ offers high-purity small biochemical molecules for broad primary metabolism studies in an economical, ready-to-use format.

α-淀粉酶酶促测定 (EC 3.2.1.1)

可根据此操作规程测定α-淀粉酶的活性。该α-淀粉酶酶促测定将会指导您完成整个过程及必要的计算。

醇脱氢酶（EC 1.1.1.1）的酶学测定

在测定醇脱氢酶活性时，该测定使用β-烟酰胺腺嘌呤二核苷酸磷酸和在340nm处的连续分光光度法进行测定。

α-胰凝乳蛋白酶的酶学测定程序（EC 3.4.21.1）

按照我们的程序进行胰凝乳蛋白酶活性测定。该α-胰凝乳蛋白酶测定将会指导您完成整个过程以及必要的计算。

Enzymatic Assay of α-Amylase (EC 3.2.1.1)

Follow our procedure for the determination of alpha-Amylase activity. This enzymatic assay of a-Amylase guides you through the entire process and necessary calculations.

Enzymatic Assay of Acid Phosphatase (EC 3.1.3.2)

Enzymatic Assay of Pepsin (3.4.23.1)

This procedure may be used for determination of Pepsin activity using hemoglobin as the substrate. It is a spectrophotometric stop rate determination.

Lipopolysaccharides Product Information

Lipopolysaccharides (LPS) are characteristic components of the cell wall of Gram negative bacteria; they are not found in Gram positive bacteria.