Gene description for Snrpa1
Gene name small nuclear ribonucleoprotein polypeptide A'
Gene symbol Snrpa1
Other names/aliases 1500015N06Rik
Species Mus musculus
 Database cross references - Snrpa1
ExoCarta ExoCarta_68981
Vesiclepedia VP_68981
Entrez Gene 68981
UniProt P57784  
 Snrpa1 identified in sEVs derived from the following tissue/cell type
Colon cancer cells 37309723    
Fibroblasts 23260141    
Melanoma cells 34957415    
Melanoma cells 34957415    
T-cell lymphoma cells 37309723    
 Gene ontology annotations for Snrpa1
Molecular Function
    U2 snRNA binding GO:0030620 IBA
    U2 snRNA binding GO:0030620 IEA
Biological Process
    mRNA splicing, via spliceosome GO:0000398 IBA
    mRNA splicing, via spliceosome GO:0000398 ISO
    mRNA splicing, via spliceosome GO:0000398 ISS
    spermatogenesis GO:0007283 IEA
    spermatogenesis GO:0007283 ISO
Subcellular Localization
    nucleus GO:0005634 ISO
    nucleus GO:0005634 ISS
    nucleoplasm GO:0005654 ISO
    spliceosomal complex GO:0005681 ISO
    U2-type spliceosomal complex GO:0005684 ISO
    U2-type spliceosomal complex GO:0005684 ISS
    U2 snRNP GO:0005686 IBA
    nuclear body GO:0016604 ISO
    nuclear speck GO:0016607 IEA
    nuclear speck GO:0016607 ISO
    U2-type precatalytic spliceosome GO:0071005 IEA
    U2-type precatalytic spliceosome GO:0071005 ISO
    U2-type catalytic step 2 spliceosome GO:0071007 ISO
    U2-type catalytic step 2 spliceosome GO:0071007 ISS
    catalytic step 2 spliceosome GO:0071013 ISO
 Experiment description of studies that identified Snrpa1 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 210
MISEV standards
✔
EM
Biophysical techniques
✔
CD81|FLOT1
Enriched markers
✘ Negative markers
✘ 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
3
Experiment ID 1117
MISEV standards
✘ Biophysical techniques
✔
Cd81|Icam1
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 34957415    
Organism Mus musculus
Experiment description Melanoma-derived small extracellular vesicles induce lymphangiogenesis and metastasis through an NGFR-dependent mechanism
Authors "García-Silva S, Benito-Martín A, Nogués L, Hernández-Barranco A, Mazariegos MS, Santos V, Hergueta-Redondo M, Ximénez-Embún P, Kataru RP, Lopez AA, Merino C, Sánchez-Redondo S, Graña-Castro O, Matei I, Nicolás-Avila JÁ, Torres-Ruiz R, Rodríguez-Perales S, Martínez L, Pérez-Martínez M, Mata G, Szumera-Ciećkiewicz A, Kalinowska I, Saltari A, Martínez-Gómez JM, Hogan SA, Saragovi HU, Ortega S, Garcia-Martin C, Boskovic J, Levesque MP, Rutkowski P, Hidalgo A, Muñoz J, Megías D, Mehrara BJ, Lyden D, Peinado H."
Journal name Nat Cancer
Publication year 2021
Sample Melanoma cells
Sample name B16-F1R2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
4
Experiment ID 1118
MISEV standards
✘ Biophysical techniques
✔
Cd81|Icam1
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 34957415    
Organism Mus musculus
Experiment description Melanoma-derived small extracellular vesicles induce lymphangiogenesis and metastasis through an NGFR-dependent mechanism
Authors "García-Silva S, Benito-Martín A, Nogués L, Hernández-Barranco A, Mazariegos MS, Santos V, Hergueta-Redondo M, Ximénez-Embún P, Kataru RP, Lopez AA, Merino C, Sánchez-Redondo S, Graña-Castro O, Matei I, Nicolás-Avila JÁ, Torres-Ruiz R, Rodríguez-Perales S, Martínez L, Pérez-Martínez M, Mata G, Szumera-Ciećkiewicz A, Kalinowska I, Saltari A, Martínez-Gómez JM, Hogan SA, Saragovi HU, Ortega S, Garcia-Martin C, Boskovic J, Levesque MP, Rutkowski P, Hidalgo A, Muñoz J, Megías D, Mehrara BJ, Lyden D, Peinado H."
Journal name Nat Cancer
Publication year 2021
Sample Melanoma cells
Sample name B16-F1R2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
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 Snrpa1
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 Sf3a3 75062
Co-fractionation Mus musculus
2 Ddx5 13207
Co-fractionation Mus musculus
3 Dnm1 13429
Co-fractionation Mus musculus
4 Atxn1  
Affinity Capture-MS Mus musculus
5 Prpf3 70767
Co-fractionation Mus musculus
6 Snrpd1 20641
Co-fractionation Mus musculus
7 Srrm2  
Co-fractionation Mus musculus
8 Zmat2  
Co-fractionation Mus musculus
9 Cwc22  
Co-fractionation Mus musculus
10 Tfip11  
Co-fractionation Mus musculus
11 Snrpa  
Co-fractionation Mus musculus
12 Cdc5l 71702
Co-fractionation Mus musculus
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