Listeriolysin-O Recombinant ( LLO )

Data sheet

Formulation

The protein contains 50mM NaH2PO4, 1mM EDTA, 2.7mM KCl, 1mM DTT, 5% (v/v) glycerol and 0.5M NaCl.

Purity

Greater than 90.0% as determined by SDS-PAGE.

Applications

a. Cytosolic delivery of molecules, peptides, oligonucleodides and plasmid DNA (4). b. Production of specific monoclonal antibodies (5). c. Detection of anti-listeriolysin O antibodies (6).

Description

Molecular weight of Listeriolysin O is 58kDa. This haemolysin protein is provided in its mature form that is constituted by 503 amino acids, from 26 to 529 of the registered sequence (accession number: AAF64524).

Protein Background

Listeriolysin O (aka LLO) is a hemolysin produced by Listeria monocytogenes bacteria, the pathogen responsible for causing listeriosis. The toxin may be regarded as a virulence factor, since it is crucial for the virulence of L. monocytogenes. LLO is a si

Expression host

Escherichia Coli.

Synonyms

Listeriolysin-O, LLO, hlyA.

Reagent Appearance

Sterile Filtered clear solution.

Stability

Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.

Activity

Hemolytic activity for Recombinant Listeriolysin O was 1.18 x 105 HU/mg of protein where HU means hemolytic activity unit that is the amount of toxin needed to release half the hemoglobin (50% lysis) of the erythrocytes as determined by hemolysin assay.2m