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P3910

Sigma-Aldrich

Protease from Bacillus licheniformis

lyophilized powder, for use in Total Dietary Fiber Assay, TDF-100A

Synonym(s):

Proteinase from Bacillus licheniformis, Subtilisin A

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About This Item

CAS Number:
9014-01-1
Enzyme Commission number:
3.4.21.62 (BRENDA, IUBMB)
EC Number:
232-752-2
MDL number:
MFCD00132092
UNSPSC Code:
12352204
eCl@ss:
32160410
NACRES:
NA.84

form

lyophilized powder

quality

for use in Total Dietary Fiber Assay, TDF-100A

mol wt

27 kDa

application(s)

food and beverages

shipped in

wet ice

storage temp.

2-8°C

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Specificity

Subtilisin A is a member of the Serine S8 Endoproteinase family. It has broad specificity with a preference for a large uncharged residue in the P1 position. It hydrolyzes native and denatured proteins, and is active under alkaline conditions.

Application

This is a proteolytic enzyme isolated from the fermentation of Bacillus licheniformis. It is a serine endoproteinase with a broad specificity towards native and denatured proteins, and is active under alkaline conditions. It is for use in Total Dietary Fiber Assays (TDF-100A).

Biochem/physiol Actions

Protease catabolizes proteins by hydrolysis of peptide bonds. Proteases are inactivated by serine active-site inhibitors, such as phenylmethylsulfonyl fluoride (PMSF) and diisopropylfluorophosphate .

Physical properties

Subtilisin is a non-glycosylated single polypeptide chain without disulfide bonds and has a molecular weight of 27 KDa.

Unit Definition

One unit will hydrolyze casein to produce color equivalent to 1.0 μmole (181 μg) of tyrosine per minute at pH 7.5 at 37°C.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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