Gene description for Stxbp2
Gene name syntaxin binding protein 2
Gene symbol Stxbp2
Other names/aliases C79054
Munc-18-2
Munc-18b
Munc18b
Sxtbp2
Sxtp2
Unc18-2
Unc18b
muSec1
Species Mus musculus
 Database cross references - Stxbp2
ExoCarta ExoCarta_20911
Vesiclepedia VP_20911
Entrez Gene 20911
UniProt Q64324  
 Stxbp2 identified in sEVs derived from the following tissue/cell type
Colon cancer cells 37309723    
Macrophages 23658846    
Macrophages 23658846    
Macrophages 23658846    
T-cell lymphoma cells 37309723    
 Gene ontology annotations for Stxbp2
Molecular Function
    protein binding GO:0005515 IPI
    syntaxin-1 binding GO:0017075 IBA
    syntaxin-1 binding GO:0017075 IPI
    syntaxin-1 binding GO:0017075 ISO
    syntaxin binding GO:0019905 ISO
    syntaxin binding GO:0019905 TAS
    syntaxin-3 binding GO:0030348 IBA
    syntaxin-3 binding GO:0030348 IPI
    syntaxin-3 binding GO:0030348 ISO
Biological Process
    leukocyte mediated cytotoxicity GO:0001909 ISO
    intracellular protein transport GO:0006886 IBA
    exocytosis GO:0006887 IMP
    vesicle docking involved in exocytosis GO:0006904 IBA
    protein transport GO:0015031 IEA
    regulation of mast cell degranulation GO:0043304 ISO
    positive regulation of mast cell degranulation GO:0043306 ISO
    cellular response to type II interferon GO:0071346 IDA
    presynaptic dense core vesicle exocytosis GO:0099525 IBA
Subcellular Localization
    cytosol GO:0005829 ISO
    plasma membrane GO:0005886 IBA
    plasma membrane GO:0005886 IDA
    plasma membrane GO:0005886 IPI
    plasma membrane GO:0005886 ISO
    apical plasma membrane GO:0016324 IDA
    apical plasma membrane GO:0016324 ISO
    lamellipodium GO:0030027 ISO
    secretory granule GO:0030141 IBA
    secretory granule GO:0030141 ISO
    protein-containing complex GO:0032991 ISO
    specific granule GO:0042581 ISO
    azurophil granule GO:0042582 ISO
    zymogen granule membrane GO:0042589 IDA
    zymogen granule membrane GO:0042589 IPI
    cytolytic granule GO:0044194 ISO
    phagocytic vesicle GO:0045335 IDA
    tertiary granule GO:0070820 ISO
 Experiment description of studies that identified Stxbp2 in sEVs
1
Experiment ID 907
MISEV standards
EM
Biophysical techniques
Tsg101|Sdcbp|Cd151|Gapdh|Lamp2|Cd81|Cd82|Cd9|Cd63|Cd80|Flot2|Tfrc|Rab35|Rab5a
Enriched markers
HSPA5
Negative markers
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 37309723    
Organism Mus musculus
Experiment description Proteomic analysis of the small extracellular vesicles and soluble secretory proteins from cachexia inducing and non-inducing cancer cells
Authors "Chitti SV, Kang T, Fonseka P, Marzan AL, Stewart S, Shahi S, Bramich K, Ang CS, Pathan M, Gummadi S, Mathivanan S."
Journal name Proteomics
Publication year 2023
Sample Colon cancer cells
Sample name C26
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
2
Experiment ID 214
MISEV standards
EM
Biophysical techniques
Enriched markers
Negative markers
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
MISEV standards
EM
Biophysical techniques
Enriched markers
Negative markers
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
MISEV standards
EM
Biophysical techniques
Enriched markers
Negative markers
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 908
MISEV standards
EM
Biophysical techniques
Tsg101|Sdcbp|Cd151|Gapdh|Lamp2|Cd81|Cd82|Cd9|Cd63|Cd80|Flot2|Tfrc|Rab35|Rab5a
Enriched markers
HSPA5
Negative markers
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 37309723    
Organism Mus musculus
Experiment description Proteomic analysis of the small extracellular vesicles and soluble secretory proteins from cachexia inducing and non-inducing cancer cells
Authors "Chitti SV, Kang T, Fonseka P, Marzan AL, Stewart S, Shahi S, Bramich K, Ang CS, Pathan M, Gummadi S, Mathivanan S."
Journal name Proteomics
Publication year 2023
Sample T-cell lymphoma cells
Sample name EL4
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
 Protein-protein interactions for Stxbp2
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 Stxbp3 20912
Co-fractionation Mus musculus
2 Vamp2  
Co-fractionation Mus musculus
3 Tmem173  
Proximity Label-MS Mus musculus
4 Exoc4  
Co-fractionation Mus musculus
5 Eed  
Affinity Capture-MS Mus musculus
6 Snrpd2 107686
Co-fractionation Mus musculus
7 Exoc8  
Co-fractionation Mus musculus
8 Pld2 18806
Co-fractionation Mus musculus
9 Snrpd3 67332
Co-fractionation Mus musculus
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