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L6895

Sigma-Aldrich

Lipid A, monophosphoryl from Salmonella enterica serotype minnesota Re 595 (Re mutant)

lyophilized powder, TLR ligand tested

Synonym(s):

Monophosphoryl Lipid A from Salmonella

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About This Item

MDL number:
UNSPSC Code:
12352211
NACRES:
NA.25

biological source

Salmonella enterica (serotype minnesota Re 595 Re mutant)

Quality Level

form

lyophilized powder

impurities

<0.2% Ketodeoxyoctonate (KDO)

shipped in

ambient

storage temp.

2-8°C

Application

Lipid A molecules compose the lipid membrane anchoring core components of endotoxins produced by Gram-negative bacteria. Lipid A molecules induce immune responses. Structually, lipid A molecules are composed of two glucosamine units with varied, species dependent, fatty acyl chain numbers and identity and degree of phosphorylation.
Lipid A, monophosphoryl from Salmonella enterica serotype minnesota Re 595 may be used in comparative assessment of the antigenicity of specific structures within different LPA molecules and analogues.

Biochem/physiol Actions

Lipid A has immunostimulatory adjuvant activity including macrophage, T-cell, and B-cell activation. Research has shown Lipid A has greater Th1 than Th2 stimulation.
Lipopolysaccharides (LPSs) are characteristic components of the cell wall of Gram-negative bacteria. LPS and its lipid A moiety stimulate cells of the innate immune system by the Toll-like receptor 4 (TLR4), a member of the Toll-like receptor protein family, which recognizes common pathogen-associated molecular-patterns (PAMPs).

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’.

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Melissa C Hanson et al.
Vaccine, 33(7), 861-868 (2015-01-07)
An HIV vaccine capable of inducing high and durable levels of broadly neutralizing antibodies has thus far proven elusive. A promising antigen is the membrane-proximal external region (MPER) from gp41, a segment of the viral envelope recognized by a number
Tyler J Van De Voort et al.
Journal of immunotherapy (Hagerstown, Md. : 1997), 36(1), 29-40 (2012-12-06)
In this study, an agonistic anti-CD40 monoclonal antibody was combined with monophosphoryl lipid A (MPL), a nontoxic derivative of lipopolysaccharide and agonist of toll-like receptor-4, to assess the immunomodulatory and antitumor synergy between the 2 agents in mice. Anti-CD40 was
Yanjun Zhang et al.
Antiviral research, 165, 11-22 (2019-03-02)
Respiratory syncytial virus (RSV) infection causes significant disease in the lower respiratory tract of young children, and there is currently no licensed vaccine to prevent RSV infection. The F glycoprotein is considered a major antigenic target for RSV vaccine development.
Melissa C Hanson et al.
Biomacromolecules, 15(7), 2475-2481 (2014-06-05)
Lipid-coated poly(lactide-co-glycolide) microparticles (LCMPs) consist of a solid polymer core wrapped by a surface lipid bilayer. Previous studies demonstrated that immunization with LCMPs surface-decorated with nanograms of antigen elicit potent humoral immune responses in mice. However, the mechanism of action
Masaki Ito et al.
PloS one, 12(11), e0188934-e0188934 (2017-12-01)
Adjuvants are indispensable for achieving a sufficient immune response from vaccinations. From a functional viewpoint, adjuvants are classified into two categories: "physical adjuvants" increase the efficacy of antigen presentation by antigen-presenting cells (APC) and "signal adjuvants" induce the maturation of

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