LBP lipopolysaccharide binding protein [Homo sapiens (human)] - Gene

Summary

Official Symbol: LBPprovided by HGNC
Official Full Name: lipopolysaccharide binding proteinprovided by HGNC
Primary source: HGNC:HGNC:6517
See related: Ensembl:ENSG00000129988 MIM:151990; AllianceGenome:HGNC:6517
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: BPIFD2
Summary: 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]
Expression: Restricted expression toward liver (RPKM 139.3) See more
Orthologs: mouse all
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Genomic context

Location:: 20q11.23

Exon count:: 15

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	20	NC_000020.11 (38346482..38377013)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	20	NC_060944.1 (40072800..40104597)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	20	NC_000020.10 (36974885..37005655)

Chromosome 20 - NC_000020.11 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: HPA RNA-seq normal tissues
Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
BioProject: PRJEB4337
Publication: PMID 24309898
Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Lipopolysaccharide binding protein resists hepatic oxidative stress by regulating lipid droplet homeostasis.
Title: Lipopolysaccharide binding protein resists hepatic oxidative stress by regulating lipid droplet homeostasis.
Gastric cancer-derived LBP promotes liver metastasis by driving intrahepatic fibrotic pre-metastatic niche formation.
Title: Gastric cancer-derived LBP promotes liver metastasis by driving intrahepatic fibrotic pre-metastatic niche formation.
Lipopolysaccharide-binding protein and future Parkinson's disease risk: a European prospective cohort.
Title: Lipopolysaccharide-binding protein and future Parkinson's disease risk: a European prospective cohort.
Lipopolysaccharide-binding protein as a biomarker in oral and maxillofacial tumors.
Title: Lipopolysaccharide-binding protein as a biomarker in oral and maxillofacial tumors.
Identification of CD14 and lipopolysaccharide-binding protein as novel biomarkers for sarcoidosis using proteomics of serum extracellular vesicles.
Title: Identification of CD14 and lipopolysaccharide-binding protein as novel biomarkers for sarcoidosis using proteomics of serum extracellular vesicles.
A Genetic Variation of Lipopolysaccharide Binding Protein Affects the Inflammatory Response and Is Associated with Improved Outcome during Sepsis.
Title: A Genetic Variation of Lipopolysaccharide Binding Protein Affects the Inflammatory Response and Is Associated with Improved Outcome during Sepsis.
SWATH-MS identification of CXCL7, LBP, TGFbeta1 and PDGFRbeta as novel biomarkers in human systemic mastocytosis.
Title: SWATH-MS identification of CXCL7, LBP, TGFβ1 and PDGFRβ as novel biomarkers in human systemic mastocytosis.
Shift Work Predicts Increases in Lipopolysaccharide-Binding Protein, Interleukin-10, and Leukocyte Counts in a Cross-Sectional Study of Healthy Volunteers Carrying Low-Grade Systemic Inflammation.
Title: Shift Work Predicts Increases in Lipopolysaccharide-Binding Protein, Interleukin-10, and Leukocyte Counts in a Cross-Sectional Study of Healthy Volunteers Carrying Low-Grade Systemic Inflammation.
Association of serum lipopolysaccharide-binding protein level with sensitization to food allergens in children.
Title: Association of serum lipopolysaccharide-binding protein level with sensitization to food allergens in children.
Lipopolysaccharide-binding protein is a distinctive biomarker of abnormal pain threshold in the general Japanese population.
Title: Lipopolysaccharide-binding protein is a distinctive biomarker of abnormal pain threshold in the general Japanese population.

Submit: New GeneRIF Correction See all GeneRIFs (81)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

EBI GWAS Catalog

Description
Genome-wide association study of chronic periodontitis in a general German population. EBI GWAS Catalog EBI GWAS CatalogPubMed
Loci associated with N-glycosylation of human immunoglobulin G show pleiotropy with autoimmune diseases and haematological cancers. EBI GWAS Catalog EBI GWAS CatalogPubMed

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

HIV-1 interactions

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Protein interactions

Protein	Gene	Interaction	Pubs
Tat	tat	Microarray analysis indicates HIV-1 Tat-induced upregulation of lipopolysaccharide binding protein (LBP) in primary human brain microvascular endothelial cells	PubMed

Go to the HIV-1, Human Interaction Database

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables coreceptor activity	IPI Inferred from Physical Interaction more info	PubMed
enables lipopeptide binding	IDA Inferred from Direct Assay more info	PubMed
enables lipopolysaccharide binding	IBA Inferred from Biological aspect of Ancestor more info
enables lipopolysaccharide binding	IDA Inferred from Direct Assay more info	PubMed
enables lipopolysaccharide binding	IMP Inferred from Mutant Phenotype more info	PubMed
enables lipopolysaccharide binding	ISS Inferred from Sequence or Structural Similarity more info	PubMed
enables lipoteichoic acid binding	IDA Inferred from Direct Assay more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables signaling receptor binding	ISS Inferred from Sequence or Structural Similarity more info	PubMed

Process	Evidence Code	Pubs
involved_in acute-phase response	IBA Inferred from Biological aspect of Ancestor more info
involved_in acute-phase response	IEP Inferred from Expression Pattern more info	PubMed
involved_in acute-phase response	ISS Inferred from Sequence or Structural Similarity more info	PubMed
involved_in cell surface pattern recognition receptor signaling pathway	IDA Inferred from Direct Assay more info	PubMed
involved_in cellular defense response	ISS Inferred from Sequence or Structural Similarity more info	PubMed
acts_upstream_of_or_within cellular response to lipopolysaccharide	IDA Inferred from Direct Assay more info	PubMed
involved_in cellular response to lipopolysaccharide	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within cellular response to lipoteichoic acid	IDA Inferred from Direct Assay more info	PubMed
involved_in defense response to Gram-negative bacterium	IBA Inferred from Biological aspect of Ancestor more info
involved_in defense response to Gram-negative bacterium	IDA Inferred from Direct Assay more info	PubMed
involved_in defense response to Gram-negative bacterium	ISS Inferred from Sequence or Structural Similarity more info	PubMed
involved_in defense response to Gram-positive bacterium	IBA Inferred from Biological aspect of Ancestor more info
involved_in defense response to Gram-positive bacterium	IDA Inferred from Direct Assay more info	PubMed
involved_in detection of molecule of bacterial origin	IDA Inferred from Direct Assay more info	PubMed
involved_in innate immune response	IBA Inferred from Biological aspect of Ancestor more info
involved_in innate immune response	IC Inferred by Curator more info	PubMed
involved_in innate immune response	ISS Inferred from Sequence or Structural Similarity more info	PubMed
involved_in leukocyte chemotaxis involved in inflammatory response	IEA Inferred from Electronic Annotation more info
involved_in lipopolysaccharide transport	IDA Inferred from Direct Assay more info	PubMed
involved_in lipopolysaccharide-mediated signaling pathway	IBA Inferred from Biological aspect of Ancestor more info
involved_in lipopolysaccharide-mediated signaling pathway	IDA Inferred from Direct Assay more info	PubMed
involved_in macrophage activation involved in immune response	IBA Inferred from Biological aspect of Ancestor more info
involved_in macrophage activation involved in immune response	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in macrophage activation involved in immune response	ISS Inferred from Sequence or Structural Similarity more info	PubMed
involved_in negative regulation of tumor necrosis factor production	IDA Inferred from Direct Assay more info	PubMed
involved_in neutrophil chemotaxis	IEA Inferred from Electronic Annotation more info
involved_in opsonization	IC Inferred by Curator more info	PubMed
involved_in opsonization	ISS Inferred from Sequence or Structural Similarity more info	PubMed
involved_in positive regulation of chemokine production	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of interleukin-6 production	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of interleukin-8 production	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of macrophage activation	IBA Inferred from Biological aspect of Ancestor more info
involved_in positive regulation of macrophage activation	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of neutrophil chemotaxis	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of respiratory burst involved in inflammatory response	ISS Inferred from Sequence or Structural Similarity more info
involved_in positive regulation of toll-like receptor 4 signaling pathway	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within positive regulation of tumor necrosis factor production	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of tumor necrosis factor production	IDA Inferred from Direct Assay more info	PubMed
involved_in positive regulation of tumor necrosis factor production	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in positive regulation of tumor necrosis factor production	ISS Inferred from Sequence or Structural Similarity more info	PubMed
involved_in response to lipopolysaccharide	IDA Inferred from Direct Assay more info	PubMed

Component	Evidence Code	Pubs
located_in cell surface	IDA Inferred from Direct Assay more info	PubMed
located_in extracellular exosome	HDA more info	PubMed
located_in extracellular region	TAS Traceable Author Statement more info
is_active_in extracellular space	IBA Inferred from Biological aspect of Ancestor more info
located_in extracellular space	IDA Inferred from Direct Assay more info	PubMed
located_in extracellular space	ISS Inferred from Sequence or Structural Similarity more info	PubMed
located_in membrane	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: lipopolysaccharide-binding protein

Names: BPI fold containing family D, member 2; LPS-binding protein

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.