Skip to Content
Merck
All Photos(6)

Documents

L6876

Sigma-Aldrich

Lysozyme from chicken egg white

powder or granules, ≥90 %, ≥39,000 units/mg protein

Synonym(s):

Mucopeptide N-acetylmuramoylhydrolase, Muramidase

Sign Into View Organizational & Contract Pricing
All Photos(6)

About This Item

CAS Number:
12650-88-3
Enzyme Commission number:
3.2.1.17 (BRENDA, IUBMB)
EC Number:
235-747-3
MDL number:
MFCD00131557
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

chicken egg white

Quality Level

200

form

powder or granules

specific activity

≥39,000 units/mg protein

mol wt

single-chain 14.3 kDa

composition

, ≥90%

technique(s)

cell based assay: suitable

suitability

suitable for cell lysis

UniProt accession no.

P00698

application(s)

cell analysis

shipped in

wet ice

storage temp.

−20°C

Gene Information

chicken ... LYZ(396218)

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Lysozyme from chicken egg white has been used for the extraction of genomic DNA from bacterial cells. It has been used as an external standard for MALDI-TOF (matrix assisted laser desorption ionization-time of flight) mass analysis.
Enzyme breaks down the cell walls of bacteria; used to prepare spheroplasts.

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).

Features and Benefits

Lysozyme from chicken egg white is a versatile enzyme with unique properties that make it effective for various applications, including bacterial cell wall breakdown, genomic DNA extraction, and external standard for mass analysis. It is reliable, active over a broad pH range, and available in various packaging sizes.

Unit Definition

One unit will lyse 0.6 μg of Micrococcus lysodeikticus per minute by turbidimetric detection at 600 nm when suspended in buffer at pH 6.2 at 25 °C.

Other Notes

View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 1

1 of 1

Lysozyme from human neutrophils ≥95% (SDS-PAGE), lyophilized powder, ≥100,000 units/mg protein (E1%/280)

Sigma-Aldrich

L8402

Lysozyme from human neutrophils

Valerio Iebba et al.
Scientific reports, 8(1), 8210-8210 (2018-05-31)
In liver cirrhosis (LC), impaired intestinal functions lead to dysbiosis and possible bacterial translocation (BT). Bacteria or their byproducts within the bloodstream can thus play a role in systemic inflammation and hepatic encephalopathy (HE). We combined 16S sequencing, NMR metabolomics
Sara Hernández-Pérez et al.
Journal of cell science, 133(5) (2019-11-30)
In order to mount high-affinity antibody responses, B cells internalise specific antigens and process them into peptides loaded onto MHCII for presentation to T helper cells (TH cells). While the biochemical principles of antigen processing and MHCII loading have been
Human intestinal lumen and mucosa-associated microbiota in patients with colorectal cancer.
Chen W et al.
PLoS ONE, 7, e39743-e39743 (2012)
Adrian P Nievergelt et al.
International journal of molecular sciences, 19(10) (2018-10-03)
Imaging living cells by atomic force microscopy (AFM) promises not only high-resolution topographical data, but additionally, mechanical contrast, both of which are not obtainable with other microscopy techniques. Such imaging is however challenging, as cells need to be measured with
A rapid procedure for isolating chromosomal DNA from Lactobacillus species and other Gram-positive bacteria.
Ulrich RL and Hughes TA
Letters in Applied Microbiology, 32, 52-52 (2001)
View All Related Papers

Articles

HPLC Analysis of Protein Standards (1) on BIOshell™ A400 Protein C4

For use as a marker in SDS-PAGE; Albumin from chicken egg white, For use as a marker in SDS-PAGE; L-Lactic Dehydrogenase from rabbit muscle, Type XI, lyophilized powder, 600-1,200 units/mg protein

Protocols

Enzymatic Assay of Lysozyme (EC 3.2.1.17)

This enzymatic rate determination may be used for Lysozyme products. It is not to be used to assay recombinant or insoluble Lysozyme on agarose.

Chromatograms

application for HPLC

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service