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Merck
CN
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主要文件

安全信息

N5665

Sigma-Aldrich

BLOCKED P-NITROPHENYL-ALPHA-D-MALTOHEPTAOSIDE

powder

别名:

BpNPG7

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About This Item

UNSPSC代码:
12352200
NACRES:
NA.28

产品名称

BLOCKED P-NITROPHENYL-ALPHA-D-MALTOHEPTAOSIDE,

表单

powder

质量水平

分子量

1362

杂质

≤3% Water content (Karl Fischer)

颜色

white to yellow

运输

dry ice

储存温度

−20°C

一般描述

This product is useful as a substrate for determination of α-amylase activity. This oligosaccharide contains a blocking group at the non-reducing end, which prevents exoglucosidase from attacking the substrate molecule. Amylase can still cleave the substrate internally, which releases short p-nitrophenol-linked (pNP-linked) oligosaccharides. After removal of the blocking group, auxiliary enzymes such as glucoamylase and maltase can release the chromogen. Glucoamylase accelerates this reaction via action on the longer chains. Maltase then separates these longer chains from the pNP moiety.

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

监管及禁止进口产品

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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访问文档库

DNA typing after α-amylase test.
Rapone, C. et al.
International Congress Series, 1239, 911-915 (2003)
Bruna Yuki Tagomori et al.
3 Biotech, 11(1), 13-13 (2021-01-15)
This work reports the amy1 gene cloning from Massilia timonae CTI-57, and its successful expression in Escherichia coli Rosetta™ (DE3) from the pTRCHis2B plasmid. The recombinant AMY1 protein had 47 kDa, and its modeled structure showed a monomer composed of three

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