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Chitotriosidase human

品牌
Sigma-Aldrich
货号
SAE0052
规格纯度
recombinant, expressed in HEK 293 cells
参考价格
3755.58 *本价格含增值税费
促销
服务
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  • 包邮
  • 增值税票
数量
-+
产品名称:
Chitotriosidase human
Chitinase-1
Chitotriosidase-1
产品介绍:

产品说明

一般描述

Chitotriosidase (CT) is a human chitinase with catalytic activity upon the substrate chitin, a polymer of ?-1,4-N-acetylglucosamine. The mature CT consists of 445 amino acids, and contains a potential N-glycosylation site as well as three intrachain disulfide bonds.

应用

The enzymatic activity of recombinant human CT is measured by its ability to hydrolyze the substrate 4-Methylumbelliferyl beta -D-N,N′,N”-triacetylchitotriose (Cat. # M5639). This enzymatic hydrolysis releases 4-methylumbelliferone (4MU), which upon ionization in basic pH, can be measured fluorimetrically at an excitation wavelength of 340 nm and an emission wavelength of 465 nm. The use of fluorimetric substrates provides a very sensitive detection system.

生化/生理作用

CT is currently the most reliable biomarker in Gaucher disease - serum and plasma CT activity is usually measured as the first step in diagnosis of Gaucher disease. Monitoring chitotriosidase activity is widely used during treatment of this pathology by enzyme replacement therapy. Its elevated plasma level reflects gradual intralysosomal accumulation in Gaucher cells (lipid-loaded macrophages). Macrophages overloaded by the enzyme accumulated in lysosomal material (lipids) were shown to secrete chitotriosidase; its increased expression was noted in several lysosomal storage diseases and atherosclerosis.

序列

AKLVCYFTNWAQYRQGEARFLPKDLDPSLCTHLIYAFAGMTNHQLSTTEWNDETLYQEFNGLKKMNPKLKTLLAIGGWNFGTQKFTDMVATANNRQTFVNSAIRFLRKYSFDGLDLDWEYPGSQGSPAVDKERFTTLVQDLANAFQQEAQTSGKERLLLSAAVPAGQTYVDAGYEVDKIAQNLDFVNLMAYDFHGSWEKVTGHNSPLYKRQEESGAAASLNVDAAVQQWLQKGTPASKLILGMPTYGRSFTLASSSDTRVGAPATGSGTPGPFTKEGGMLAYYEVCSWKGATKQRIQDQKVPYIFRDNQWVGFDDVESFKTKVSYLKQKGLGGAMVWALDLDDFAGFSCNQGRYPLIQTLRQELSLPYLPSGTPELEVPKPGQPSEPEHGPSPGQDTFCQGKADGLYPNPRERSSFYSCAAGRLFQQSCPTGLVFSNSCKCCTWNGHHHHHHHHGQ

单位定义

One unit is defined as the amount of CT required to produce 1 pmol of 4-Methylumbelliferone from 4-Methylumbelliferyl beta -D-
N′,N”-triacetylchitotrioside per minute at 25 °C, pH 5.6.

外形

Supplied as a lyophilized powder containing phosphate buffered saline

基本信息

酶学委员会(EC)编号3.2.1.14 ( BRENDA | IUBMB )

产品性质

重组expressed in HEK 293 cells
质量水平200
测定98% (SDS-PAGE)
形式lyophilized powder
specific activity≥15,000 units/μg protein
分子量 50 kDa
运输ambient
储存温度−20℃

安全信息

储存分类代码10 - Combustible liquids
WGKWGK 1
闪点(F)Not applicable
闪点(C)Not applicable

Sigma-Aldrich

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