Description
Frequently Asked Questions Live Chat and Frequently Asked Questions are available for this Product.
Application Yeast cells are difficult to disrupt because the cell walls may form capsules or resistant spores. DNA can be extracted from yeast by using lysing enzymes such as lyticase, chitinase, zymolase, and gluculase to induce partial spheroplast formation; spheroplasts are subsequently lysed to release DNA. Lyticase is preferred to digest cell walls of yeast and generate spheroplasts from fungi for transformation.
Reported to be useful for lysis of Ashbya, Candida, Debaryomyces, Eremothecium, Endomyces, Hansenula, Hanseniaspora, Kloeckera, Kluyveromyces, Lipomyces, Metschikowia, Pichia, Pullularia, Torulopsis, Saccharomyces, Saccharomycopsis, Saccharomycodes, and Schwanniomyces species.
Biochem/physiol Actions Lyticase hydrolyzes poly-β（1→3）-glucose such as yeast cell wall glucan.
Other Notes View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
Unit Definition One unit will produce a ΔA800 of 0.001 per min at pH 7.5 at 25 °C, using a suspension of yeast as substrate in a 3 mL reaction mixture.
Physical form Partially purified, lyophilized powder containing potassium phosphate buffer salts and stabilizers
Properties
form lyophilized powder
composition Protein, ≥20% biuret
EQP level Premium
storage temp. −20°C
Safety
Personal Protective Equipment Eyeshields, Gloves, type N95 （US）, type P1 （EN143） respirator filter
Hazard Codes Xn
Risk Statements 42 Description
Other Notes View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
Unit Definition One unit will liberate 1 μmole of reducing sugar measured as xylose equivalents from xylan （X0627） per min at pH 4.5 at 30 °C.
Physical form Contains sorbitol and sodium acetate buffer salts
Properties
form lyophilized powder
composition Protein, ~50% biuret
foreign activity β-glucosidase <0.01%
β-xylosidase <0.002%
cellulase <0.2%
storage temp. 2-8°C
Safety
Personal Protective Equipment Eyeshields, Gloves, type N95 （US）, type P1 （EN143） respirator filter
Safety Statements 22-24/25
WGK Germany 3
Safety Statements 22
WGK Germany 3
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