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A1520

Sigma-Aldrich

α-Amylase Inhibitor

≥200 inhibitor U/mg protein (using porcine pancreatic α-amylase), ≥1000 inhibitor U/mg protein (using human salivary α-amylase), lyophilized powder

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About This Item

MDL number:
UNSPSC Code:
12352202
NACRES:
NA.77

Pricing and availability is not currently available.

Product Name

α-Amylase Inhibitor from Triticum aestivum (wheat seed), Type I, lyophilized powder

biological source

Triticum estivum

Quality Level

type

Type I

form

lyophilized powder

specific activity

≥1000 inhibitor U/mg protein (using human salivary α-amylase)
≥200 inhibitor U/mg protein (using porcine pancreatic α-amylase)

composition

Protein, 35-65% biuret

storage temp.

−20°C

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General description

α-Amylases are endoglycosidases, that are classified into glycosyl hydrolase family 13 (1-3).[1]

Application

α-Amylase Inhibitor from Triticum aestivum (wheat seed) has been used to determine its effects on salivary gland (SG) amylase activity.[2] It has also been used to inhibit the activity from the extract from Bemisia tabaci.[3]

Biochem/physiol Actions

α-Amylases can hydrolyze α-(1,4)-D-glycosidic linkages. It participates in the breakdown of starch and glycogen. Inhibiting this enzyme can be used as a strategy to treat dental caries, diabetes, obesity and periodontal diseases.[4]
Competitive inhibitor of human salivary α-amylase. KI = 2.9 nM, compared to a KM of 5.9 mM (calculated per mole of α-1,4-linked maltose residues).

Unit Definition

One unit will reduce the activity of two units of α-amylase (A0521) by 50% after pre-incubation at 25 °C.

Physical form

Lyophilized powder containing buffer salts as sodium phosphate.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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A review of alpha-amylase inhibitors on weight loss and glycemic control in pathological state such as obesity and diabetes
Mahmood N
Comparative clinical pathology, 25(6), 1253-1264 (2016)
Frauke Schocker et al.
International archives of allergy and immunology, 174(1), 17-25 (2017-09-28)
Little is known about breast milk as a vehicle for tolerance development or sensitization to peanuts very early in life. Thus, well-characterized and highly sensitive detection systems for the reliable determination of peanut allergens in breast milk are mandatory. For
Demonstration and preliminary characterization of -amylase in the sweetpotato whitefly, Bemisia tabaci (Aleyrodidae: Homoptera)
Cohen AC and Hendrix DL
Comparative Biochemistry and Physiology (1994)
alpha-Amylase inhibitors: a review of raw material and isolated compounds from plant source
Sales PM, et al.
J. Pharm. Pharm. Sci., 15(1), 141-183 (2012)
Partial characterization of alpha-amylase in the salivary glands of Lygus hesperus and L. lineolaris
Zeng F and Cohen AC
Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology, 126(1), 9-16 (2000)

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