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L2898

Sigma-Aldrich

Lysostaphin from Staphylococcus staphylolyticus

aseptically filled

Synonym(s):

Glycyl-glycine Endopeptidase

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$393.00

About This Item

CAS Number:
9011-93-2
Enzyme Commission number:
3.4.24.75 (BRENDA, IUBMB)
MDL number:
MFCD00131556
UNSPSC Code:
12352204
NACRES:
NA.54

$393.00

In StockDetails

sterility

aseptically filled

Quality Level

200

form

powder

specific activity

>500 units/mg protein

mol wt

25 kDa

composition

Protein, 40-70% biuret

antibiotic activity spectrum

Gram-positive bacteria

mode of action

cell wall synthesis | interferes

storage temp.

−20°C

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General description

Chemical structure: peptide
Lysostaphin is mainly liberated as a proenzyme. It is highly stable at pH 4 and temperature 5°C.[1]

Biochem/physiol Actions

Lysostaphin exhibit a lytic action against Staphylococcus aureus. It possesses several functions of three major enzymes, such as, glycylglycine endopeptidase, endo-β-N-acetyl glucosamidase and N-acteyl muramyl-L-alanine amidase. Lysostaphin can be used to treat antibiotic-resistant staphylococcal infections. Lysostaphin being an antistaphylococcal agent, can be used as a preservative in the food industry and in clinical labs for rapid screening.[1]
Lysostaphin is a zinc endopeptidase with a molecular weight of approximately 25 kDa. Because lysostaphin cleaves the polyglycine cross-links in the peptidoglycan layer of the cell wall of Staphylococcus species it has been found useful for cell lysis and also as a potential anti-microbial therapeutic.
pH Optimum for activity: ~7.5

Unit Definition

One unit will reduce the turbidity (A620) of a suspension of Staphylococcus aureus cells from 0.250 to 0.125 in 10 min at pH 7.5 at 37 °C in a 6.0 ml reaction mixture.

Preparation Note

Prepared from L 7386

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H334

Hazard Classifications

Resp. Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
SLCR3968
SLCR3968
SLCG3890
SLBZ0309
SLBT0102

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Lysostaphin: an antistaphylococcal agent
Kumar J K
Applied Microbiology and Biotechnology, 80(4), 555-561 (2008)
Fuying Cui et al.
Drug delivery, 17(8), 617-623 (2010-08-24)
Nasal colonization of Staphylococcus aureus (S.aureus) is known as a significant risk factor for nosocomial infections, and clearance of its nasal colonization greatly reduces the risk. In the present study the preparation and characterizations of the chitosan-o/w cream incorporated with
Igor Belyansky et al.
The Journal of surgical research, 171(2), 409-415 (2011-06-24)
Lysostaphin (LS), a naturally occurring Staphylococcal endopeptidase, has the ability to penetrate biofilm, and has been identified as a potential antimicrobial to prevent mesh infection. The goals of this study were to determine if LS adhered to porcine mesh (PM)
A P Desbois et al.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 30(8), 1015-1021 (2011-02-12)
Drug-resistant staphylococci constitute a serious problem that urgently requires the discovery of new therapeutic agents. There has been a resurgence in interest in using lysostaphin (a specific anti-staphylococcal enzyme) as a treatment for infections caused by these important pathogens. However
M Fenton et al.
Journal of applied microbiology, 111(4), 1025-1035 (2011-08-05)
To develop an efficient purification strategy for the bacteriophage lysin CHAP(K) . To evaluate its antibacterial spectrum(,) enzymatic properties, optimal reaction conditions and lytic activity against live Staphlyococcus aureus. Recombinant CHAP(K) was purified to homogeneity by cation exchange chromatography, with
View All Related Papers

Questions

  1. Which reaction buffer is recommended for this enzyme? Are there any limitations, inhibitors, etc? Would it work in any medium.

    1 answer

    1. Please see the link below to the quality control test procedure utilized for the enzymatic assay of lysostaphin. Reaction with other buffers has not been tested and, please refer to academic literature for guidance on how other buffers may influence the enzyme's reactivity:

      https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/120/423/l7386enz.pdf

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