Gene description for Kpnb1
Gene name karyopherin (importin) beta 1
Gene symbol Kpnb1
Other names/aliases AA409963
IPOB
Impnb
Species Mus musculus
 Database cross references - Kpnb1
ExoCarta ExoCarta_16211
Entrez Gene 16211
UniProt P70168  
 Kpnb1 identified in exosomes derived from the following tissue/cell type
Fibroblasts 23260141    
Macrophages 23658846    
Macrophages 23658846    
Macrophages 23658846    
Mast cells 17486113    
Pancreatic cells 19351151    
 Gene ontology annotations for Kpnb1
Molecular Function
    poly(A) RNA binding GO:0044822 ISO
    Ran GTPase binding GO:0008536 IEA
    protein domain specific binding GO:0019904 ISO
    protein transporter activity GO:0008565 IDA
    kinesin binding GO:0019894 ISO
    enzyme binding GO:0019899 ISO
    protein binding GO:0005515 IPI
    protein complex binding GO:0032403 ISO
Biological Process
    transport GO:0006810 IEA
    protein import into nucleus GO:0006606 ISO
    nucleocytoplasmic transport GO:0006913 IEA
    protein transport GO:0015031 IEA
    intracellular protein transport GO:0006886 IEA
    ribosomal protein import into nucleus GO:0006610 ISO
Subcellular Localization
    extracellular exosome GO:0070062 ISO
    nuclear pore GO:0005643 ISO
    nuclear membrane GO:0031965 ISO
    cytoplasm GO:0005737 ISO
    protein complex GO:0043234 IDA
    nuclear envelope GO:0005635 ISO
    nucleoplasm GO:0005654 ISO
    intracellular GO:0005622 IDA
    cell GO:0005623 IDA
    nucleus GO:0005634 IEA
    endoplasmic reticulum tubular network GO:0071782 ISO
    membrane GO:0016020 ISO
 Experiment description of studies that identified Kpnb1 in exosomes
1
Experiment ID 210
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD81|FLOT1
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23260141    
Organism Mus musculus
Experiment description Exosomes Mediate Stromal Mobilization of Autocrine Wnt-PCP Signaling in Breast Cancer Cell Migration.
Authors Luga V, Zhang L, Viloria-Petit AM, Ogunjimi AA, Inanlou MR, Chiu E, Buchanan M, Hosein AN, Basik M, Wrana JL.
Journal name Cell
Publication year 2012
Sample Fibroblasts
Sample name Normal-Fibroblasts (L cells)
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 214
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name Leishmania-infected-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 215
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name LPS-treated-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
4
Experiment ID 216
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name Normal-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
5
Experiment ID 15
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 17486113    
Organism Mus musculus
Homo sapiens
Experiment description Exosome-mediated transfer of mRNAs and microRNAs is a novel mechanism of genetic exchange between cells.
Authors Valadi H, Ekstrom K, Bossios A, Sjostrand M, Lee JJ, Lotvall JO
Journal name NCB
Publication year 2007
Sample Mast cells
Sample name MC9
Bone marrow-derived mast cells
HMC-1
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.11-1.21 g/mL
Molecules identified in the study Protein
mRNA
miRNA
Methods used in the study Mass spectrometry [MALDI TOF]
Western blotting
Microarray
miRCURY LNA Array
6
Experiment ID 188
ISEV standards
EM
EV Biophysical techniques
GAPDH|UCHL1|HSP90
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19351151    
Organism Mus musculus
Experiment description Characterization of vesicles secreted from insulinoma NIT-1 cells.
Authors Lee HS, Jeong J, Lee KJ.
Journal name J Proteome Res
Publication year 2009
Sample Pancreatic cells
Sample name Pancreatic beta cell (NIT-1)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for Kpnb1
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which Kpnb1 is involved
PathwayEvidenceSource
Activation of DNA fragmentation factor IEA Reactome
Regulation of cholesterol biosynthesis by SREBP (SREBF) IEA Reactome





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