Gene description for GNAT1
Gene name guanine nucleotide binding protein (G protein), alpha transducing activity polypeptide 1
Gene symbol GNAT1
Other names/aliases CSNBAD3
GBT1
GNATR
Species Homo sapiens
 Database cross references - GNAT1
ExoCarta ExoCarta_2779
Vesiclepedia VP_2779
Entrez Gene 2779
HGNC 4393
MIM 139330
UniProt P11488  
 GNAT1 identified in exosomes derived from the following tissue/cell type
Neuroblastoma cells 25944692    
Retinal pigment epithelial cells 35333565    
Retinal pigment epithelial cells 35333565    
Thymus 23844026    
Urine 21595033    
Urine 21595033    
Urine 21595033    
 Gene ontology annotations for GNAT1
Molecular Function
    GTPase activity GO:0003924 TAS
    metal ion binding GO:0046872 IEA
    signal transducer activity GO:0004871 IBA
    GTP binding GO:0005525 ISS
    G-protein beta/gamma-subunit complex binding GO:0031683 IBA
    GDP binding GO:0019003 ISS
    acyl binding GO:0000035 ISS
    protein kinase binding GO:0019901 ISS
    G-protein coupled receptor binding GO:0001664 IBA
Biological Process
    detection of chemical stimulus involved in sensory perception of bitter taste GO:0001580 IEA
    signal transduction GO:0007165 NAS
    regulation of rhodopsin mediated signaling pathway GO:0022400 TAS
    negative regulation of cyclic-nucleotide phosphodiesterase activity GO:0051344 ISS
    response to light intensity GO:0009642 IEA
    retina development in camera-type eye GO:0060041 IEA
    metabolic process GO:0008152 TAS
    adenylate cyclase-modulating G-protein coupled receptor signaling pathway GO:0007188 IBA
    rhodopsin mediated signaling pathway GO:0016056 TAS
    response to light stimulus GO:0009416 ISS
    cellular response to electrical stimulus GO:0071257 IEA
    sensory perception of umami taste GO:0050917 IBA
    phototransduction, visible light GO:0007603 TAS
    cell proliferation GO:0008283 IEA
    visual perception GO:0007601 TAS
    positive regulation of cyclic-nucleotide phosphodiesterase activity GO:0051343 IEA
    detection of light stimulus involved in visual perception GO:0050908 IMP
    eye photoreceptor cell development GO:0042462 IEA
Subcellular Localization
    photoreceptor outer segment membrane GO:0042622 ISS
    photoreceptor connecting cilium GO:0032391 IEA
    apical plasma membrane GO:0016324 IEA
    photoreceptor disc membrane GO:0097381 TAS
    neuronal cell body GO:0043025 IEA
    plasma membrane GO:0005886 TAS
    cytosol GO:0005829 TAS
    heterotrimeric G-protein complex GO:0005834 IBA
    membrane GO:0016020 NAS
    photoreceptor outer segment GO:0001750 IDA
    photoreceptor inner segment GO:0001917 IDA
 Experiment description of studies that identified GNAT1 in exosomes
1
Experiment ID 224
MISEV standards
✔
EM|AFM
EV Biophysical techniques
✔
Alix|TSG101|CD63|CD81
EV Enriched markers
✔
GOLGA2
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25944692    
Organism Homo sapiens
Experiment description Proteogenomic analysis reveals exosomes are more oncogenic than ectosomes
Authors Keerthikumar S, Gangoda L, Liem M, Fonseka P, Atukorala I, Ozcitti C, Mechler A, Adda CG, Ang CS, Mathivanan S
Journal name Oncotarget
Publication year 2015
Sample Neuroblastoma cells
Sample name SH-SY5Y
Isolation/purification methods Differential centrifugation
Ultracentrifugation
OptiPrep density gradient
Flotation density 1.10 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
2
Experiment ID 834
MISEV standards
✔
EM
EV Biophysical techniques
✔
LAMP2|CD63|FLOT1|ITGA2B|ICAM1|CD9|CD151|TFRC|RAB5A|GAPDH|AQP1|TSG101
EV Enriched markers
✔
CANX
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 35333565    
Organism Homo sapiens
Experiment description LAMP2A regulates the loading of proteins into exosomes
Authors Ferreira JV, da Rosa Soares A, Ramalho J, Máximo Carvalho C, Cardoso MH, Pintado P, Carvalho AS, Beck HC, Matthiesen R, Zuzarte M, Girão H, van Niel G, Pereira P
Journal name Sci Adv
Publication year 2022
Sample Retinal pigment epithelial cells
Sample name ARPE-19
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
3
Experiment ID 835
MISEV standards
✔
EM
EV Biophysical techniques
✔
CD63|FLOT1|ITGA2B|ICAM1|CD9|CD151|TFRC|RAB5A|GAPDH|AQP1|TSG101
EV Enriched markers
✔
CANX
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 35333565    
Organism Homo sapiens
Experiment description LAMP2A regulates the loading of proteins into exosomes
Authors Ferreira JV, da Rosa Soares A, Ramalho J, Máximo Carvalho C, Cardoso MH, Pintado P, Carvalho AS, Beck HC, Matthiesen R, Zuzarte M, Girão H, van Niel G, Pereira P
Journal name Sci Adv
Publication year 2022
Sample Retinal pigment epithelial cells
Sample name ARPE-19
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
4
Experiment ID 217
MISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|CD81|CD9|CD63
EV Enriched markers
✘ EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23844026    
Organism Homo sapiens
Experiment description Characterization of human thymic exosomes.
Authors Skogberg G, Gudmundsdottir J, van der Post S, Sandstrom K, Bruhn S, Benson M, Mincheva-Nilsson L, Baranov V, Telemo E, Ekwall O.
Journal name PLoS One
Publication year 2013
Sample Thymus
Sample name Normal-Thymus
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
5
Experiment ID 193
MISEV standards
✔
EM
EV Biophysical techniques
✔
CD63|CD9
EV Enriched markers
✔
PHB
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21595033    
Organism Homo sapiens
Experiment description Proteomic analysis of urinary exosomes from patients of early IgA nephropathy and thin basement membrane nephropathy.
Authors Moon PG, Lee JE, You S, Kim TK, Cho JH, Kim IS, Kwon TH, Kim CD, Park SH, Hwang D, Kim YL, Baek MC.
Journal name Proteomics
Publication year 2011
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
6
Experiment ID 194
MISEV standards
✘ EV Biophysical techniques
✘ EV Enriched markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21595033    
Organism Homo sapiens
Experiment description Proteomic analysis of urinary exosomes from patients of early IgA nephropathy and thin basement membrane nephropathy.
Authors Moon PG, Lee JE, You S, Kim TK, Cho JH, Kim IS, Kwon TH, Kim CD, Park SH, Hwang D, Kim YL, Baek MC.
Journal name Proteomics
Publication year 2011
Sample Urine
Sample name Urine - Patients of basement membrane nephropathy
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
7
Experiment ID 195
MISEV standards
✘ EV Biophysical techniques
✘ EV Enriched markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21595033    
Organism Homo sapiens
Experiment description Proteomic analysis of urinary exosomes from patients of early IgA nephropathy and thin basement membrane nephropathy.
Authors Moon PG, Lee JE, You S, Kim TK, Cho JH, Kim IS, Kwon TH, Kim CD, Park SH, Hwang D, Kim YL, Baek MC.
Journal name Proteomics
Publication year 2011
Sample Urine
Sample name Urine - Patients of early IgA nephropathy
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for GNAT1
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.



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