L3790
Lysozyme from chicken egg white
10 mg/mL
Synonym(s):
Mucopeptide N-acetylmuramoylhydrolase, Muramidase
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About This Item
Recommended Products
biological source
chicken egg white
Quality Level
form
liquid
mol wt
single-chain 14.3 kDa
concentration
≥400000 units/mL
10 mg/mL
technique(s)
cell based assay: suitable
suitability
suitable for cell lysis
UniProt accession no.
application(s)
cell analysis
shipped in
wet ice
storage temp.
−20°C
Gene Information
chicken ... LYZ(396218)
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General description
Lysosyme is an enzyme found in egg white that breaks down the cell walls in bacteria enhancing the efficiency of DNA and protein extraction.
Application
Enzyme breaks down the cell walls of bacteria; used to prepare spheroplasts.
Suitable for the purification of both DNA and protein from bacteria.
Biochem/physiol Actions
Lysozyme hydrolyzes β(1→4) linkages between N-acetylmuramic acid and N-acetyl-D-glucosamine residues in peptidoglycan and between N-acetyl-D-glucosamine residues in chitodextrin. Gram-positive cells are quite susceptible to this hydrolysis as their cell walls have a high proportion of peptidoglycan. Gram-negative bacteria are less susceptible due to the presence of an outer membrane and a lower proportion of peptidoglycan. However, these cells may be hydrolyzed in the presence of EDTA that chelates metal ions in the outer bacterial membrane.
The enzyme is active over a broad pH range (6.0 to 9.0). At pH 6.2, maximal activity is observed over a wider range of ionic strengths (0.02 to 0.100 M) than at pH 9.2 (0.01 to 0.06 M).
The enzyme is active over a broad pH range (6.0 to 9.0). At pH 6.2, maximal activity is observed over a wider range of ionic strengths (0.02 to 0.100 M) than at pH 9.2 (0.01 to 0.06 M).
Suitability
Tested for suitability with CelLytic™ B in protein extraction from bacteria.
Unit Definition
One unit will lyse 0.4 μg of Micrococcus lysodeikticus per minute by turbidimetric detection at 600 nm when suspended in buffer at pH 8.0 at 37 °C.
Physical form
Ready to use solution:10 mg/mL lysozyme in 25 mM sodium acetate pH 4.5 with 50% glycerol.
Solution in 50% glycerol, 25 mM Sodium Acetate
Legal Information
CelLytic is a trademark of Sigma-Aldrich Co. LLC
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Resp. Sens. 1
Storage Class Code
10 - Combustible liquids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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