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 exosomes 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 exosomes
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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