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A3403

Sigma-Aldrich

α-Amylase from Bacillus licheniformis

greener alternative

Type XII-A, saline solution, ≥500 units/mg protein (biuret)

Synonym(s):

Termamyl® 2X, 1,4-α-D-Glucan-glucanohydrolase

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3 X 1.2 ML
CN¥904.05

About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352204
eCl@ss:
32160410
NACRES:
NA.54

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type

Type XII-A

Quality Level

form

saline solution

specific activity

≥500 units/mg protein (biuret)

mol wt

57.6 kDa

greener alternative product characteristics

Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

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greener alternative category

storage temp.

2-8°C

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Show Differences

1 of 4

This Item
110264676926360473
2-丁酮 ReagentPlus®, ≥99%

110264

2-丁酮

2-丁酮 ACS reagent, ≥99.0%

676926

2-丁酮

2-丁酮 ACS reagent, ≥99.0%

360473

2-丁酮

application(s)

pharmaceutical (small molecule)

application(s)

-

application(s)

-

application(s)

-

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

technique(s)

-

format

neat

format

-

format

-

format

-

Quality Level

300

Quality Level

200

Quality Level

200

Quality Level

200

grade

certified reference material, pharmaceutical secondary standard

grade

-

grade

ACS reagent

grade

ACS reagent

storage temp.

2-30°C

storage temp.

-

storage temp.

-

storage temp.

-

General description

α-Amylase is a member of the endo-amylase family. Its molecular weight is 57.6 kDa. α-Amylase is composed of three functional domains namely A, B and C. Domain A is a barrel-shaped (β/α)8 structure and is the largest domain. Domain B is linked to domain A via disulfide bond and is present between domain A and C. Domain C is composed of β-sheets and is connected to domain A via a polypeptide chain.[1]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency and waste prevention when used in starch ethanol research. For more information see the article in biofiles.

Application

α-Amylase is used to hydrolyze α bonds of α-linked polysaccharides, such as starch and glycogen. Product A3403 is from Bacillus licheniformis and is type XII-A. α-Amylase, from Sigma, has been used in various plant studies, such as metabolism studies in Arabidopsis [2].

Biochem/physiol Actions

α-Amylase hydrolyzes the α-(1,4) glucan linkages in polysaccharides of three or more α-(1,4) linked D-glucose units. Natural substrates such as starch and glycogen are broken down into glucose and maltose.

Caution

Reported to be heat stable at temperatures as high as ∼90 °C.

Unit Definition

One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 6.9 at 20 °C.

Physical form

Aqueous solution containing sodium chloride and sucrose

Legal Information

A product of Novozyme Corp.
Termamyl is a registered trademark of Novozymes Corp.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

易制毒化学品(3类)
危险化学品

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