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A0521

Sigma-Aldrich

α-Amylase from human saliva

greener alternative

Type IX-A, lyophilized powder, 1,000-3,000 units/mg protein

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Synonym(s):
1,4-α-D-Glucan-glucanohydrolase
CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
eCl@ss:
32160410
NACRES:
NA.54

type

Type IX-A

Quality Level

form

lyophilized powder

specific activity

1,000-3,000 units/mg protein

composition

Protein, 5.0-15.0% biuret

greener alternative product characteristics

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

UniProt accession no.

greener alternative category

storage temp.

−20°C

Gene Information

human ... AMY1A(276)

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α-Amylase from human saliva

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α-Amylase from Bacillus sp.

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A1031

α-Amylase from human saliva

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A3176

α-Amylase from porcine pancreas

Gene Information

human ... AMY1A(276)

Gene Information

-

Gene Information

human ... AMY1A(276)

Gene Information

-

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

powder

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

2-8°C

UniProt accession no.

P0DUB6

UniProt accession no.

-

UniProt accession no.

P0DUB6

UniProt accession no.

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

General description

α-amylase is the main secretory protein constituent of saliva. It contains 496 amino acids and has two isoforms, glycosylated and non-glycosylated. α-amylase gene is located on human chromosome 1p21.1. α-amylase is mainly produced in pancreas and saliva.
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 from human saliva has been used to test α-amylase inhibitors using HPLC (high performance liquid chromatography). It also has been used to study the digestibility of human milk oligosaccharides (HMO).

Biochem/physiol Actions

α-amylase catalyses the hydrolysis of α-1,4 glycosidic linkage in oligosaccharides. It plays a crucial role in the initial digestion of starch, glycogen and polysaccharides. Elevated levels of amylase in serum is linked to acute pancreatitis.

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

Lyophilized powder containing (NH4)2SO4 and sodium citrate

Preparation Note

Chromatographically purified

Pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Maria Alberta Araújo et al.
Journal of biomedical materials research. Part A, 94(3), 720-729 (2010-03-13)
This study aims at evaluating the influence of enzymatic degradation solution on the surface morphology and thermal properties of a poly(ethylene-vinyl alcohol) copolymer-corn starch thermoplastic blend (SEVA-C), as a function of immersion time. To perform this study, three different batches
Structure of human salivary alpha-amylase crystallized in a C-centered monoclinic space group
Fisher SZ, et al.
Acta Crystallographica Section F, Structural Biology and Crystallization Communications, 62(2), 88-93 (2006)
Copy number polymorphism of the salivary amylase gene: implications in human nutrition research
Santos JL, et al.
Lifestyle Genomics, 5(3), 117-131 (2012)
M J Gnoth et al.
The Journal of nutrition, 130(12), 3014-3020 (2000-12-09)
In examining the functional aspects of human milk oligosaccharides (HMO), it is not known whether they are digested during the passage through the infant's gastrointestinal tract. HMO were prepared from individual milk samples (n = 6) and separated into neutral
HPLC method for measurement of human salivary alpha-amylase inhibition by aqueous plant extracts
Takacs I, et al.
PLoS ONE, 68(2), 127-136 (2017)

Protocols

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.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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