LBP Gene Summary [Human]

The protein encoded by this gene is involved in the acute-phase immunologic response to gram-negative bacterial infections. Gram-negative bacteria contain a glycolipid, lipopolysaccharide (LPS), on their outer cell wall. Together with bactericidal permeability-increasing protein (BPI), the encoded protein binds LPS and interacts with the CD14 receptor, probably playing a role in regulating LPS-dependent monocyte responses. Studies in mice suggest that the encoded protein is necessary for the rapid acute-phase response to LPS but not for the clearance of LPS from circulation. 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). [provided by RefSeq, Apr 2012]

Details

Type
Protein Coding
Official Symbol
LBP
Official Name
lipopolysaccharide binding protein [Source:HGNC Symbol;Acc:HGNC:6517]
Ensembl ID
ENSG00000129988
Bio databases IDs NCBI: 3929 Ensembl: ENSG00000129988
Aliases lipopolysaccharide binding protein, BPI fold containing family D, member 2
Synonyms BPIFD2, Lipopolysaccharide binding, lipopolysaccharide binding protein, Ly88
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human LBP often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • lipid binding
  • binding protein
  • protein binding
  • receptor binding
  • BPI
  • lipopolysaccharide binding
  • transporter
  • coreceptor

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
disease
  • depressive disorder
  • obesity
  • metastasis
  • Crohn disease
  • pneumonia
  • major depression
  • metabolic syndrome X
  • facioscapulohumeral muscular dystrophy
  • breast cancer
  • non-psychotic major depressive disorder
regulated by
regulates
role in cell
  • expression in
  • production in
  • function
  • chemotaxis
  • activation
  • binding
  • response
  • signaling
  • response by
  • cellular infiltration by

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • cell surface
  • Extracellular Space
  • Nucleus
  • azurophil granules
  • plasma

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human LBP gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • detection of molecule of bacterial origin
  • positive regulation of respiratory burst involved in inflammatory response
  • macrophage activation involved in immune response
  • opsonization
  • cell surface pattern recognition receptor signaling pathway
  • positive regulation of macrophage activation
  • positive regulation of tumor necrosis factor production
  • positive regulation of chemokine production
  • defense response to Gram-positive bacterium
  • negative regulation of tumor necrosis factor production
  • lipopolysaccharide transport
  • positive regulation of toll-like receptor 4 signaling pathway
  • defense response to Gram-negative bacterium
  • positive regulation of neutrophil chemotaxis
  • acute-phase response
  • leukocyte chemotaxis involved in inflammatory response
  • cellular defense response
  • positive regulation of interleukin-8 production
  • cellular response to lipopolysaccharide
  • cellular response to lipoteichoic acid
  • innate immune response
  • neutrophil chemotaxis
  • lipopolysaccharide-mediated signaling pathway
  • response to lipopolysaccharide
  • positive regulation of interleukin-6 production

Cellular Component

Where in the cell the gene product is active
  • extracellular space
  • extracellular vesicular exosome
  • membrane
  • extracellular region
  • cell surface

Molecular Function

What the gene product does at the molecular level
  • coreceptor activity
  • protein binding
  • lipoteichoic acid binding
  • receptor binding
  • lipopeptide binding
  • lipopolysaccharide binding

Gene-Specific Assays for Results You Can Trust

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