The actual amount of powder per pack will depend on the units/mg protein of the lot received. This value will be provided in the lot-specific Certificate of Analysis. For example, lot SLCN0121 tested at 1474 units/mg protein. The 100UN pack size will provide 0.06mg of protein, the 500UN pack size will provide 0.34mg of protein, and the 2500UN pack size will provide 1.70mg of protein. Please see the link below to review this Certificate of Analysis:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/A0521-BULKSLCN0121.pdf
A0521
α-Amylase from human saliva
Type IX-A, lyophilized powder, 1,000-3,000 units/mg protein
Synonyma:
1,4-α-D-Glucan-glucanohydrolase
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Vybrat velikost
Změnit zobrazení
| Velikost balení | Skladová položka | Dostupnost | Cena |
|---|---|---|---|
| 100 units | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 1 540,00 Kč | |
| 500 units | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 10 500,00 Kč | |
| 2500 units | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 15 400,00 Kč |
O této položce
Číslo CAS:
UNSPSC Code:
12352204
eCl@ss:
32160410
EC Number:
232-565-6
NACRES:
NA.54
MDL number:
Specific activity:
1,000-3,000 units/mg protein
1 540,00 Kč
Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti.
Technický servis
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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
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sustainability
Greener Alternative Product
UniProt accession no.
greener alternative category
storage temp.
−20°C
Gene Information
human ... AMY1A(276)
General description
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.
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.
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).[1]
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.
Physical form
Lyophilized powder containing (NH4)2SO4 and sodium citrate
Preparation Note
Chromatographically purified
Other Notes
One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 6.9 at 20 °C.
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
1 of 1
Tato položka | |||
|---|---|---|---|
| Gene Information human ... AMY1A(276) | Gene Information human ... AMY1A(276) | Gene Information - | Gene Information - |
| specific activity 1,000-3,000 units/mg protein | specific activity 300-1,500 units/mg protein | specific activity ≥1,500 units/mg protein (biuret) | specific activity ~380 U/mg |
| form lyophilized powder | form lyophilized powder | form lyophilized powder | form powder |
| UniProt accession no. | UniProt accession no. | UniProt accession no. - | UniProt accession no. - |
| storage temp. −20°C | storage temp. −20°C | storage temp. −20°C | storage temp. 2-8°C |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
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Související obsah
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.
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)
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
Copy number polymorphism of the salivary amylase gene: implications in human nutrition research
Santos JL, et al.
Lifestyle Genomics, 5(3), 117-131 (2012)
Globální číslo obchodní položky
| Skladová položka | GTIN |
|---|---|
| A0521-100UN | 04061833334058 |
| A0521-2.5KU | 04061833334065 |
| A0521-500UN | 04061832841298 |
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Good morning, I allow myself to contact you to know the mass of the product "α-amylase from Human Saliva" (A0521-100UN). It lacks the mass of the product and I would like to know it.
1 answer-
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Dear Dr, how much mg saliva amylase are present in glass. We design the experimet sets. So need to know the Total amount of the amylase(mg) in the bottle. Thanks
1 answer-
The exact amount is determined by the units/mg protein listed on the Certificate of Analysis. For example, the lot SLCN0121 tested at 1474 units per milligram protein. The total amount of the amylase (mg) in the bottle for the 100 unit package contains 0.07 mg, the 500 unit package contains 0.34 mg, and the 2500 unit package will contain 1.70 mg of protein. This lot is 11.8% protein. These values will change from lot to lot, but the actual mass in the bottles remains low. Other products, such as A4551, are sold by weight. See the link below to review this product page. https://www.sigmaaldrich.com/product/sigma/a4551
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