Active Lipopolysaccharide Binding Protein (LBP)

LPS-Binding Protein

  • Active Lipopolysaccharide Binding Protein (LBP) Packages (Simulation)
  • Active Lipopolysaccharide Binding Protein (LBP) Packages (Simulation)
  • APB406Mu02.jpg Figure. SDS-PAGE
  • Certificate ISO9001: 2008, ISO13485: 2003 Registered

ACTIVITY TEST of the Active Lipopolysaccharide Binding Protein (LBP)

Lipopolysaccharide Binding Protein (LBP) is a soluble acute-phase protein that binds to bacterial lipopolysaccharide (or LPS) to elicit immune responses by presenting the LPS to important cell surface pattern recognition receptors called CD14 and TLR4.This protein is part of a family of structurally and functionally related proteins, including BPI, plasma cholesteryl ester transfer protein (CETP), and phospholipid transfer protein (PLTP). It has been reported that LBP can enhance LPS-stimulated IL-8 secretion by THP-1 cells. To test the bioactivity of LBP, THP-1 cells were seeded into 24-well plate at a density of 1x106 cells/mL including 1ug/mL LPS, and treated with certain concentrations (0.625ug/mL-20ug/mL) of LBP for 24h and IL-8 levels in the cell supernatant were determined by ELISA. IL-8 levels in the cell supernatant of THP-1 cells increased significantly after stimulated with LBP have shown in Figure1.

USAGE of the Active Lipopolysaccharide Binding Protein (LBP)

Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

STORAGE of the Active Lipopolysaccharide Binding Protein (LBP)

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

STABILITY of the Active Lipopolysaccharide Binding Protein (LBP)

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

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