Gene description for Hspa1a
Gene name heat shock 70kD protein 1A
Gene symbol Hspa1a
Other names/aliases HSP72
Hsp70-1
Hspa1
Hspa1b
Species Rattus norvegicus
 Database cross references - Hspa1a
ExoCarta ExoCarta_24472
Vesiclepedia VP_24472
Entrez Gene 24472
UniProt Q07439  
 Hspa1a identified in sEVs derived from the following tissue/cell type
Adipocytes 25998041    
Hepatocytes 19367702    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
 Gene ontology annotations for Hspa1a
Molecular Function
    G protein-coupled receptor binding GO:0001664 ISO
    protease binding GO:0002020 IPI
    transcription corepressor activity GO:0003714 ISO
    transcription corepressor activity GO:0003714 ISS
    signaling receptor binding GO:0005102 ISO
    protein binding GO:0005515 IPI
    ATP binding GO:0005524 ISO
    ATP hydrolysis activity GO:0016887 IBA
    ATP hydrolysis activity GO:0016887 ISO
    enzyme binding GO:0019899 ISO
    heat shock protein binding GO:0031072 IBA
    heat shock protein binding GO:0031072 ISO
    denatured protein binding GO:0031249 ISO
    ubiquitin protein ligase binding GO:0031625 ISO
    death receptor agonist activity GO:0038177 ISO
    histone deacetylase binding GO:0042826 ISO
    protein folding chaperone GO:0044183 IBA
    protein folding chaperone GO:0044183 ISO
    receptor ligand activity GO:0048018 ISO
    NF-kappaB binding GO:0051059 IPI
    unfolded protein binding GO:0051082 ISO
    misfolded protein binding GO:0051787 ISO
    C3HC4-type RING finger domain binding GO:0055131 ISO
    disordered domain specific binding GO:0097718 ISO
    transcription regulator inhibitor activity GO:0140416 ISO
    ATP-dependent protein disaggregase activity GO:0140545 ISO
    ATP-dependent protein folding chaperone GO:0140662 IEA
Biological Process
    negative regulation of transcription by RNA polymerase II GO:0000122 ISO
    negative regulation of transcription by RNA polymerase II GO:0000122 ISS
    positive regulation of T cell mediated cytotoxicity GO:0001916 IDA
    mRNA catabolic process GO:0006402 ISO
    mRNA catabolic process GO:0006402 ISS
    protein folding GO:0006457 ISO
    defense response GO:0006952 IDA
    response to unfolded protein GO:0006986 IMP
    response to unfolded protein GO:0006986 ISO
    response to unfolded protein GO:0006986 ISS
    lysosomal transport GO:0007041 ISS
    signal transduction GO:0007165 IEA
    binding of sperm to zona pellucida GO:0007339 ISO
    negative regulation of cell population proliferation GO:0008285 ISO
    negative regulation of cell population proliferation GO:0008285 ISS
    response to heat GO:0009408 ISO
    positive regulation of gene expression GO:0010628 ISO
    negative regulation of cell growth GO:0030308 ISO
    negative regulation of cell growth GO:0030308 ISS
    negative regulation of transforming growth factor beta receptor signaling pathway GO:0030512 ISO
    regulation of protein ubiquitination GO:0031396 ISO
    negative regulation of protein ubiquitination GO:0031397 ISO
    positive regulation of proteasomal ubiquitin-dependent protein catabolic process GO:0032436 IBA
    positive regulation of proteasomal ubiquitin-dependent protein catabolic process GO:0032436 ISO
    positive regulation of interleukin-8 production GO:0032757 ISO
    negative regulation of myeloid cell apoptotic process GO:0033033 IDA
    positive regulation of RNA splicing GO:0033120 ISO
    cellular response to heat GO:0034605 ISO
    cellular response to unfolded protein GO:0034620 ISO
    protein refolding GO:0042026 IBA
    protein refolding GO:0042026 ISO
    protein refolding GO:0042026 ISS
    negative regulation of apoptotic process GO:0043066 IDA
    negative regulation of apoptotic process GO:0043066 ISO
    negative regulation of apoptotic process GO:0043066 ISO
    positive regulation of erythrocyte differentiation GO:0045648 ISO
    negative regulation of vasoconstriction GO:0045906 IMP
    ATP metabolic process GO:0046034 ISO
    protein stabilization GO:0050821 ISO
    chaperone cofactor-dependent protein refolding GO:0051085 IBA
    positive regulation of NF-kappaB transcription factor activity GO:0051092 ISO
    chaperone-mediated protein complex assembly GO:0051131 ISO
    cellular heat acclimation GO:0070370 ISO
    positive regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway GO:0070434 ISO
    positive regulation of microtubule nucleation GO:0090063 ISO
    positive regulation of microtubule nucleation GO:0090063 ISS
    negative regulation of inclusion body assembly GO:0090084 ISO
    negative regulation of release of cytochrome c from mitochondria GO:0090201 IMP
    negative regulation of mitochondrial outer membrane permeabilization involved in apoptotic signaling pathway GO:1901029 ISO
    regulation of mitotic spindle assembly GO:1901673 ISO
    regulation of mitotic spindle assembly GO:1901673 ISS
    negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway GO:1902236 ISO
    positive regulation of endoribonuclease activity GO:1902380 ISO
    positive regulation of tumor necrosis factor-mediated signaling pathway GO:1903265 ISO
    negative regulation of extrinsic apoptotic signaling pathway in absence of ligand GO:2001240 ISO
Subcellular Localization
    zona pellucida receptor complex GO:0002199 ISO
    extracellular space GO:0005615 ISO
    nucleus GO:0005634 IBA
    nucleus GO:0005634 ISO
    nucleus GO:0005634 ISS
    cytoplasm GO:0005737 IBA
    cytoplasm GO:0005737 ISO
    cytoplasm GO:0005737 ISS
    mitochondrion GO:0005739 IEA
    mitochondrion GO:0005739 ISO
    centrosome GO:0005813 ISO
    centrosome GO:0005813 ISS
    centriole GO:0005814 ISO
    cytosol GO:0005829 IBA
    cytosol GO:0005829 ISO
    plasma membrane GO:0005886 IBA
    COP9 signalosome GO:0008180 ISO
    inclusion body GO:0016234 ISO
    aggresome GO:0016235 ISO
    basolateral plasma membrane GO:0016323 IDA
    apical plasma membrane GO:0016324 IDA
    nuclear speck GO:0016607 ISO
    nuclear speck GO:0016607 ISS
    protein-containing complex GO:0032991 IDA
    protein-containing complex GO:0032991 ISO
    cell body GO:0044297 ISO
    membrane raft GO:0045121 IDA
    perinuclear region of cytoplasm GO:0048471 ISO
    perinuclear region of cytoplasm GO:0048471 ISS
    ribonucleoprotein complex GO:1990904 ISO
 Experiment description of studies that identified Hspa1a in sEVs
1
Experiment ID 225
MISEV standards
✔
EM
Biophysical techniques
✔
GAPDH|CD63
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25998041    
Organism Rattus norvegicus
Experiment description Proteomic Analysis of Extracellular Vesicles Released by Adipocytes of Otsuka Long-Evans Tokushima Fatty (OLETF) Rats.
Authors "Lee JE, Moon PG, Lee IK, Baek MC"
Journal name Protein J
Publication year 2015
Sample Adipocytes
Sample name Adipocytes
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
2
Experiment ID 35
MISEV standards
✔
CEM
Biophysical techniques
✔
TSG101|Alix|CD81|CD63
Enriched markers
✔
HSPA5
Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19367702    
Organism Rattus norvegicus
Experiment description Characterization and Comprehensive Proteome Profiling of Exosomes Secreted by Hepatocytes.
Authors "Conde-Vancells J, Rodriguez-Suarez E, Embade N, Gil D, Matthiesen R, Valle M, Elortza F, Lu SC, Mato JM, Falcon-Perez JM"
Journal name JPR
Publication year 2008
Sample Hepatocytes
Sample name Hepatocytes
Isolation/purification methods Differential centrifugation
Filtration
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
Western blotting
3
Experiment ID 94
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D4 Rep 1
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.16-1.21 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
4
Experiment ID 95
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D7 Rep 1
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.25 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
5
Experiment ID 96
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D2 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.16-1.21 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
6
Experiment ID 98
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D7 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.25 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
 Protein-protein interactions for Hspa1a
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 Creb1  
Affinity Capture-Western Rattus norvegicus
2 Slc8a1  
Reconstituted Complex Mus musculus
3 Nox4  
Affinity Capture-Western Rattus norvegicus
4 Stub1 287155
Affinity Capture-Western Rattus norvegicus
5 Slc8a1  
Affinity Capture-MS Rattus norvegicus
6 Katna1  
Affinity Capture-MS Rattus norvegicus
View the network image/svg+xml
 Pathways in which Hspa1a is involved
No pathways found





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