Gene description for Hspa4
Gene name heat shock protein 4
Gene symbol Hspa4
Other names/aliases 70kDa
AI317151
APG-2
Hsp110
Hsp70RY
mKIAA4025
Species Mus musculus
 Database cross references - Hspa4
ExoCarta ExoCarta_15525
Vesiclepedia VP_15525
Entrez Gene 15525
 Hspa4 identified in sEVs derived from the following tissue/cell type
Colon cancer cells 37309723    
Embryonic fibroblasts 18494037    
Fibroblasts 23260141    
T-cell lymphoma cells 37309723    
 Gene ontology annotations for Hspa4
Molecular Function
    adenyl-nucleotide exchange factor activity GO:0000774 IBA
    protein binding GO:0005515 IPI
    ATP binding GO:0005524 IEA
    protein-containing complex binding GO:0044877 ISO
    RNA polymerase II-specific DNA-binding transcription factor binding GO:0061629 ISO
    ATP-dependent protein folding chaperone GO:0140662 IEA
Biological Process
    negative regulation of protein phosphorylation GO:0001933 ISO
    protein folding GO:0006457 IBA
    protein folding GO:0006457 IEA
    negative regulation of gene expression GO:0010629 ISO
    protein insertion into mitochondrial outer membrane GO:0045040 ISO
    chaperone-mediated protein complex assembly GO:0051131 ISO
    neuron apoptotic process GO:0051402 ISO
    regulation of microglial cell activation GO:1903978 ISO
Subcellular Localization
    nucleus GO:0005634 IBA
    cytoplasm GO:0005737 IEA
    lipid droplet GO:0005811 ISO
    cytosol GO:0005829 IBA
    cytosol GO:0005829 ISO
    extracellular exosome GO:0070062 ISO
 Experiment description of studies that identified Hspa4 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 73
MISEV standards
EM
Biophysical techniques
HSP70|HSP90
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 18494037    
Organism Mus musculus
Experiment description Difference gel electrophoresis analysis of Ras-transformed fibroblast cell-derived exosomes.
Authors "Ji H, Erfani N, Tauro BJ, Kapp EA, Zhu HJ, Moritz RL, Lim JW, Simpson RJ"
Journal name ELEC
Publication year 2008
Sample Embryonic fibroblasts
Sample name NIH3T3
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LCQ DECA]
Western blotting
3
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
4
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 Hspa4
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 Lnx1  
Affinity Capture-MS Mus musculus
2 Atg16l1  
Affinity Capture-MS Mus musculus
3 Tmem173  
Proximity Label-MS Mus musculus
4 Kctd13  
Affinity Capture-MS Mus musculus
5 Ywhab 54401
Co-fractionation Mus musculus
6 Tfe3  
Affinity Capture-MS Mus musculus
7 Mapt  
Affinity Capture-MS Mus musculus
8 HIST1H3A 8350
Affinity Capture-MS Homo sapiens
9 SOD1 6647
Affinity Capture-MS Homo sapiens
10 Unk  
Affinity Capture-RNA Mus musculus
11 Iqcb1  
Affinity Capture-MS Mus musculus
12 Nanog  
Affinity Capture-MS Mus musculus
13 Ywhae 22627
Affinity Capture-MS Mus musculus
14 Mark2 13728
Co-fractionation Mus musculus
View the network image/svg+xml
 Pathways in which Hspa4 is involved
No pathways found





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