All Photos(2)
Synonym(s):
poly-beta-D-mannuronate lyase
CAS Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
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General description
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 .
Biochem/physiol Actions
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.
Unit Definition
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
Preparation Note
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.
Other Notes
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Resp. Sens. 1
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
常规特殊物品
Certificates of Analysis (COA)
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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
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
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.
Bunzo Mikami et al.
Acta crystallographica. Section D, Biological crystallography, 68(Pt 9), 1207-1216 (2012-09-06)
The structures of two mutants (H192A and Y246F) of a mannuronate-specific alginate lyase, A1-III, from Sphingomonas species A1 complexed with a tetrasaccharide substrate [4-deoxy-L-erythro-hex-4-ene-pyranosyluronate-(mannuronate)(2)-mannuronic acid] were determined by X-ray crystallography at around 2.2 Å resolution together with the apo form
Enzyme-assisted extraction of fucoxanthin and lipids containing polyunsaturated fatty acids from Undaria pinnatifida using dimethyl ether and ethanol
Billakanti JM, et al.
Process Biochemistry (Oxford, United Kingdom), 48(12), 1999-2008 (2013)
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