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Key Documents

D4668

Sigma-Aldrich

Dextranase from Penicillium sp.

lyophilized powder, 100-250 units/mg protein

Synonym(s):

1,6-α-D-Glucan 6-glucanohydrolase

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About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

form

lyophilized powder

Quality Level

specific activity

100-250 units/mg protein

composition

Protein, ~25% Lowry

storage temp.

2-8°C

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Application

Dextranase from Penicillium sp. can be used to modify alternan. Dextranase from Penicillium sp. has also been used in a study that explored the possibility that the Dex protein might adopt a fold unfamiliar to any known structure.

Biochem/physiol Actions

The product is an endodextranase that hydrolyzes α-(1,6)-glucosidic linkages in dextran. Dextrans are undesirable compounds synthesized from sucrose by microbial contaminants during sugar production. They increase viscosity of the flow and decrease industrial recovery. Dextranase has been used for hydrolyzing dextran at sugar mills in order to improve efficiency of sugar production.

Unit Definition

One unit will liberate 1.0 μmole of isomaltose (measured as maltose) per min at pH 6.0 at 37 °C, using dextran as substrate.

Physical form

Partially purified, lyophilized powder

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

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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Timothy D Leathers et al.
Biotechnology letters, 31(2), 289-293 (2008-10-22)
Alternan is a unique glucan with a backbone structure of alternating alpha-(1 --> 6) and alpha-(1 --> 3) linkages. Previously, we isolated strains of Penicillium sp. that modify native, high molecular weight alternan in a novel bioconversion process to a
T Pons et al.
Proteins, 31(4), 345-354 (1998-06-17)
The DEX gene encodes an extracellular dextranase (EC 3.2.1.11); this enzyme hydrolyzes the alpha(1,6) glucosidic bond contained in dextran to release small isomaltosaccharides. Sequence analysis has revealed only one homologous sequence, CB-8 protein, from Arthrobacter sp., with 30% sequence identity.
Controlled nanoparticle formation by enzymatic deshelling of biopolymer-stabilized nanosuspensions.
Yi-Yeoun Kim et al.
Small (Weinheim an der Bergstrasse, Germany), 5(8), 913-918 (2009-02-11)
Peng-fei Hao et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 34(7), 1133-1137 (2011-11-10)
To explore the best enzyme and optimal conditions for extracting Hypericin from Hypericum perforatum. Chose the best enzyme from Pectinase, Xylanase, Glucanase, beta-Glucanase and Enzyme (SPE-007A). The effeet of solid-liquid ratio enzyme dosage, PH, temperature and the extraction time were
Akira Yano et al.
Applied microbiology and biotechnology, 86(2), 615-623 (2009-11-11)
Mushrooms contain large quantities of alpha-glucans. Shiitake (Lentinula edodes), Japan's most popular edible mushroom, has been reported to contain about 6% (weight/dried weight) of alpha-(1,3)-glucan. This glucan is one of the major components of oral biofilm formed by the cariogenic

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