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Key Documents

A1603

Sigma-Aldrich

Alginate Lyase

powder, ≥10,000 units/g solid

Synonyme(s) :

poly-beta-D-mannuronate lyase

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About This Item

Numéro CAS:
Numéro de classification (Commission des enzymes):
Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Forme

powder

Activité spécifique

≥10,000 units/g solid

Température de stockage

2-8°C

Description générale

Alginate lyases is present in several marine algae, marine mollusks and a vast range of marine and terrestrial bacteria.

Application

Alginate Lyase has been used:
  • in the pre-processing of enzyme
  • to de-encapsulate cells
  • to digest Pseudomonas exopolysaccharide to facilitate electroporation

Alginate Lyase is used to break down alginate or alginic acid and to reduce viscosity. It is useful during follicle isolation, encapsulation, and culture .

Actions biochimiques/physiologiques

Alginate lyases actively participates in the saccharification of the acidic polysaccharides for the production of bioethanol.
Breaks down alginate or alginic acid to smaller molecules and reduces viscosity.

Définition de l'unité

One unit will produce an increase the A235nm of 1.0 per minute per mL of sodium alginate solution at pH 6.3 at 37 °C

Notes préparatoires

Add 0.15 mI of enzyme solution (1 un/ml) to 4.5 ml of 0.1% sodium alginate (pH 6.3). Incubate at 37 °C for 30 minutes. Terminate reaction by addition of 4.65 ml of 0.1 N NaOH.

Pictogrammes

Health hazard

Mention d'avertissement

Danger

Mentions de danger

Conseils de prudence

Classification des risques

Resp. Sens. 1

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


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Consulter la Bibliothèque de documents

Elizabeth M Parrish et al.
Reproduction (Cambridge, England), 142(2), 309-318 (2011-05-26)
Ovarian follicle maturation results from a complex interplay of endocrine, paracrine, and direct cell-cell interactions. This study compared the dynamic expression of key developmental genes during folliculogenesis in vivo and during in vitro culture in a 3D alginate hydrogel system.
Shinji Sakai et al.
Biomaterials, 33(28), 6721-6727 (2012-07-10)
We report a method for wrapping tissues with a pre-established cage-like layer composed of living cells. We encapsulated multicellular aggregates of human hepatoma HepG2 cells as a model of tissues such as pancreatic islets and hepatocyte spheroids in alginate-based hydrogel
W Hashimoto et al.
Journal of bacteriology, 182(16), 4572-4577 (2000-07-27)
A bacterium, Sphingomonas sp. strain A1, can incorporate alginate into cells through a novel ABC (ATP-binding cassette) transporter system specific to the macromolecule. The transported alginate is depolymerized to di- and trisaccharides by three kinds of cytoplasmic alginate lyases (A1-I
Adam J Wargacki et al.
Science (New York, N.Y.), 335(6066), 308-313 (2012-01-24)
Prospecting macroalgae (seaweeds) as feedstocks for bioconversion into biofuels and commodity chemical compounds is limited primarily by the availability of tractable microorganisms that can metabolize alginate polysaccharides. Here, we present the discovery of a 36-kilo-base pair DNA fragment from Vibrio
Lena C E Lundqvist et al.
Carbohydrate research, 352, 44-50 (2012-03-21)
The gene coding for an alginate lyase from the marine bacteria Pseudomonas alginovora X017 was cloned and heterologously expressed in Escherichia coli strains. The protein was produced in inclusion bodies and the active form was obtained by applying a refolding

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