Lipopolysaccharide-binding protein (P18428)

Uniprot ID P18428
Protein Name Lipopolysaccharide-binding protein
Gene Name LBP
Species Homo sapiens (Human)
Signal peptide(a) Y Secretome P(b)
Function Plays a role in the innate immune response. Binds to the lipid A moiety of bacterial lipopolysaccharides (LPS), a glycolipid present in the outer membrane of all Gram-negative bacteria (PubMed:7517398, PubMed:24120359). Acts as an affinity enhancer for CD14, facilitating its association with LPS. Promotes the release of cytokines in response to bacterial lipopolysaccharide (PubMed:7517398, PubMed:24120359). .
GO - Molecular function
  • lipopeptide binding : IDA:AgBase
  • lipopolysaccharide binding : IDA:MGI
  • lipoteichoic acid binding : IDA:MGI
  • signaling receptor binding : ISS:BHF-UCL
GO - Biological process
  • acute-phase response : IEP:BHF-UCL
  • cellular defense response : ISS:BHF-UCL
  • cellular response to lipopolysaccharide : IDA:MGI
  • cellular response to lipoteichoic acid : IDA:MGI
  • cytokine-mediated signaling pathway : TAS:Reactome
  • defense response to Gram-negative bacterium : IDA:BHF-UCL
  • defense response to Gram-positive bacterium : IDA:BHF-UCL
  • detection of molecule of bacterial origin : IDA:BHF-UCL
  • innate immune response : ISS:BHF-UCL
  • leukocyte chemotaxis involved in inflammatory response : IEA:Ensembl
  • lipopolysaccharide transport : IDA:BHF-UCL
  • lipopolysaccharide-mediated signaling pathway : IDA:BHF-UCL
  • macromolecule localization : IDA:AgBase
  • macrophage activation involved in immune response : IMP:UniProtKB
  • negative regulation of growth of symbiont in host : IEA:Ensembl
  • negative regulation of tumor necrosis factor production : IDA:BHF-UCL
  • opsonization : ISS:BHF-UCL
  • positive regulation of chemokine production : IEA:Ensembl
  • positive regulation of cytolysis : IDA:AgBase
  • positive regulation of interleukin-6 production : IDA:BHF-UCL
  • positive regulation of interleukin-8 production : IDA:BHF-UCL
  • positive regulation of macrophage activation : IDA:BHF-UCL
  • positive regulation of neutrophil chemotaxis : IEA:Ensembl
  • positive regulation of respiratory burst involved in inflammatory response : ISS:BHF-UCL
  • positive regulation of toll-like receptor 4 signaling pathway : IDA:BHF-UCL
  • positive regulation of tumor necrosis factor biosynthetic process : IEA:Ensembl
  • positive regulation of tumor necrosis factor production : IDA:BHF-UCL
  • response to lipopolysaccharide : IDA:BHF-UCL
  • toll-like receptor 4 signaling pathway : TAS:Reactome
  • toll-like receptor signaling pathway : TAS:Reactome
Back
(a) The Signal peptide D-score cutoff for "YES"(having signal peptide) is 0.45.
(b) Non-classically secreted proteins should obtain an NN-score(Neural Networks score) exceeding the normal threshold of 0.5, but not at the same time be predicted to contain a signal peptide.