Gene description for Rap1b
Gene name RAS related protein 1b
Gene symbol Rap1b
Other names/aliases 2810443E11Rik
Species Mus musculus
 Database cross references - Rap1b
ExoCarta ExoCarta_215449
Entrez Gene 215449
UniProt Q99JI6  
 Rap1b identified in exosomes derived from the following tissue/cell type
Dendritic cells 11390481    
Embryonic fibroblasts 18494037    
Fibroblasts 23260141    
Macrophages 23658846    
Macrophages 23658846    
Macrophages 23658846    
Mast cells 17486113    
 Gene ontology annotations for Rap1b
Molecular Function
    GDP binding GO:0019003 ISO
    GTPase activity GO:0003924 ISO
    protein complex binding GO:0032403 ISO
    protein binding GO:0005515 IPI
    nucleotide binding GO:0000166 IEA
    GTP binding GO:0005525 ISO
Biological Process
    metabolic process GO:0008152 ISO
    positive regulation of ERK1 and ERK2 cascade GO:0070374 IGI
    negative regulation of synaptic vesicle exocytosis GO:2000301 IGI
    cell proliferation GO:0008283 IPI
    regulation of establishment of cell polarity GO:2000114 ISO
    negative regulation of calcium ion-dependent exocytosis GO:0045955 IGI
    small GTPase mediated signal transduction GO:0007264 IDA
    establishment of endothelial barrier GO:0061028 ISO
    regulation of cell junction assembly GO:1901888 ISO
    cellular response to cAMP GO:0071320 ISO
    Rap protein signal transduction GO:0032486 ISO
    signal transduction GO:0007165 IEA
Subcellular Localization
    cytoplasm GO:0005737 IEA
    plasma membrane GO:0005886 IEA
    cytosol GO:0005829 ISO
    cell junction GO:0030054 IEA
    lipid particle GO:0005811 ISO
    intracellular GO:0005622 ISO
    extracellular exosome GO:0070062 ISO
    cell-cell junction GO:0005911 ISO
    membrane GO:0016020 IEA
 Experiment description of studies that identified Rap1b in exosomes
1
Experiment ID 10
ISEV standards
✔
EM
EV Biophysical techniques
✔
Alix
EV Cytosolic markers
✔
CD9|MHCII|MHCI|CD86|LAMP2
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry [MALDI TOF]
PubMed ID 11390481    
Organism Mus musculus
Experiment description Proteomic analysis of dendritic cell-derived exosomes: a secreted subcellular compartment distinct from apoptotic vesicles.
Authors Thery C, Boussac M, Veron P, Ricciardi-Castagnoli P, Raposo G, Garin J, Amigorena S.
Journal name JIMMU
Publication year 2001
Sample Dendritic cells
Sample name D1
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.15-1.18 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [MALDI TOF]
Mass spectrometry [QTOF]
Western blotting
2
Experiment ID 73
ISEV standards
✔
EM
EV Biophysical techniques
✔
HSP70|HSP90
EV Cytosolic markers
✘ EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 18494037    
Organism Mus musculus
Experiment description Difference gel electrophoresis analysis of Ras-transformed fibroblast cell-derived exosomes.
Authors Ji H, Erfani N, Tauro BJ, Kapp EA, Zhu HJ, Moritz RL, Lim JW, Simpson RJ
Journal name ELEC
Publication year 2008
Sample Embryonic fibroblasts
Sample name NIH3T3
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LCQ DECA]
Western blotting
3
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
4
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
5
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
6
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
7
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
 Protein-protein interactions for Rap1b
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.



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