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
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
    protein binding GO:0005515 IPI
    ATP binding GO:0005524 ISO
    NF-kappaB binding GO:0051059 IPI
    enzyme binding GO:0019899 ISO
    poly(A) RNA binding GO:0044822 ISO
    double-stranded RNA binding GO:0003725 ISO
    unfolded protein binding GO:0051082 ISO
    C3HC4-type RING finger domain binding GO:0055131 ISO
    protease binding GO:0002020 IPI
    ubiquitin protein ligase binding GO:0031625 ISO
    protein N-terminus binding GO:0047485 ISO
    heat shock protein binding GO:0031072 ISO
    ATPase activity, coupled GO:0042623 ISO
    ATPase activity GO:0016887 ISO
    protein binding involved in protein folding GO:0044183 ISO
Biological Process
    negative regulation of protein ubiquitination GO:0031397 ISO
    positive regulation of erythrocyte differentiation GO:0045648 ISO
    binding of sperm to zona pellucida GO:0007339 ISO
    negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway GO:1902236 ISO
    negative regulation of mitochondrial outer membrane permeabilization involved in apoptotic signaling pathway GO:1901029 ISO
    negative regulation of inclusion body assembly GO:0090084 ISO
    defense response GO:0006952 IDA
    negative regulation of vasoconstriction GO:0045906 IMP
    negative regulation of cell death GO:0060548 ISO
    negative regulation of myeloid cell apoptotic process GO:0033033 IDA
    negative regulation of cell growth GO:0030308 ISS
    cellular heat acclimation GO:0070370 ISO
    cellular response to heat GO:0034605 ISO
    negative regulation of cell proliferation GO:0008285 ISS
    response to heat GO:0009408 ISO
    positive regulation of endoribonuclease activity GO:1902380 ISO
    negative regulation of extrinsic apoptotic signaling pathway in absence of ligand GO:2001240 ISO
    response to unfolded protein GO:0006986 ISS
    mRNA catabolic process GO:0006402 ISS
    negative regulation of cysteine-type endopeptidase activity involved in apoptotic process GO:0043154 ISO
    positive regulation of mRNA cleavage GO:0031439 ISO
    positive regulation of T cell mediated cytotoxicity GO:0001916 IDA
    positive regulation of IRE1-mediated unfolded protein response GO:1903896 ISO
    positive regulation of gene expression GO:0010628 ISO
    protein refolding GO:0042026 ISO
    ATP metabolic process GO:0046034 ISO
    negative regulation of apoptotic process GO:0043066 ISO
    regulation of cell death GO:0010941 ISO
Subcellular Localization
    ribonucleoprotein complex GO:0030529 ISO
    aggresome GO:0016235 ISO
    focal adhesion GO:0005925 ISO
    nuclear speck GO:0016607 ISS
    apical plasma membrane GO:0016324 IDA
    cytoplasm GO:0005737 ISS
    vesicle GO:0031982 ISO
    mitochondrion GO:0005739 ISO
    inclusion body GO:0016234 ISO
    cell body GO:0044297 ISO
    nucleus GO:0005634 ISS
    blood microparticle GO:0072562 ISO
    zona pellucida receptor complex GO:0002199 ISO
    perinuclear region of cytoplasm GO:0048471 ISS
    COP9 signalosome GO:0008180 ISO
    ubiquitin ligase complex GO:0000151 ISO
    cytosol GO:0005829 ISO
    intracellular GO:0005622 ISO
    basolateral plasma membrane GO:0016323 IDA
    extracellular exosome GO:0070062 ISO
    centriole GO:0005814 ISO
    protein complex GO:0043234 IDA
 Experiment description of studies that identified Hspa1a in exosomes
1
Experiment ID 225
ISEV standards
EM
EV Biophysical techniques
GAPDH
EV Cytosolic markers
CD63
EV Membrane markers
EV Negative markers
NTA
EV 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
ISEV standards
CEM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
CD81|CD63
EV Membrane markers
HSPA5
EV Negative markers
EV 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
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP90|HSC70
EV Cytosolic markers
MHCI
EV Membrane markers
EV Negative markers
EV 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
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP90|HSC70
EV Cytosolic markers
MHCI
EV Membrane markers
EV Negative markers
EV 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
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP90|HSC70
EV Cytosolic markers
MHCI
EV Membrane markers
EV Negative markers
EV 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
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP90|HSC70
EV Cytosolic markers
MHCI
EV Membrane markers
EV Negative markers
EV 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
No interactions are found.
 Pathways in which Hspa1a is involved
No pathways found





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