Gene description for BPI
Gene name bactericidal/permeability-increasing protein
Gene symbol BPI
Other names/aliases BPIFD1
rBPI
Species Homo sapiens
 Database cross references - BPI
ExoCarta ExoCarta_671
Vesiclepedia VP_671
Entrez Gene 671
HGNC 1095
MIM 109195
UniProt P17213  
 BPI identified in sEVs derived from the following tissue/cell type
Urine 19056867    
 Gene ontology annotations for BPI
Molecular Function
    lipopolysaccharide binding GO:0001530 IBA
    lipopolysaccharide binding GO:0001530 IDA
Biological Process
    antibacterial humoral response GO:0019731 IDA
    lipopolysaccharide-mediated signaling pathway GO:0031663 IBA
    negative regulation of interleukin-6 production GO:0032715 IBA
    negative regulation of interleukin-6 production GO:0032715 IDA
    negative regulation of interleukin-8 production GO:0032717 IBA
    negative regulation of interleukin-8 production GO:0032717 IDA
    negative regulation of tumor necrosis factor production GO:0032720 IBA
    negative regulation of tumor necrosis factor production GO:0032720 IDA
    negative regulation of macrophage activation GO:0043031 IBA
    negative regulation of macrophage activation GO:0043031 IDA
    innate immune response GO:0045087 IBA
    defense response to Gram-negative bacterium GO:0050829 IBA
    defense response to Gram-negative bacterium GO:0050829 IDA
    antimicrobial humoral immune response mediated by antimicrobial peptide GO:0061844 IDA
    cellular response to lipopolysaccharide GO:0071222 IDA
Subcellular Localization
    extracellular region GO:0005576 TAS
    extracellular space GO:0005615 IBA
    cytoplasmic stress granule GO:0010494 IDA
    membrane GO:0016020 IEA
    azurophil granule lumen GO:0035578 TAS
    specific granule lumen GO:0035580 TAS
    extracellular exosome GO:0070062 HDA
 Experiment description of studies that identified BPI in sEVs
1
Experiment ID 63
MISEV standards
Biophysical techniques
AQP2
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19056867    
Organism Homo sapiens
Experiment description Large-scale proteomics and phosphoproteomics of urinary exosomes.
Authors "Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta R, Wang NS, Knepper MA"
Journal name JASN
Publication year 2009
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
 Protein-protein interactions for BPI
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 EGFL8  
Affinity Capture-MS Homo sapiens
2 CD2BP2 10421
Affinity Capture-MS Homo sapiens
3 GNG8  
Affinity Capture-MS Homo sapiens
4 RHBDD1 84236
Affinity Capture-MS Homo sapiens
5 TCEB3B  
Affinity Capture-MS Homo sapiens
6 KLK10 5655
Affinity Capture-MS Homo sapiens
7 CIT 11113
Affinity Capture-MS Homo sapiens
View the network image/svg+xml



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