Gene description for HRG
Gene name histidine-rich glycoprotein
Gene symbol HRG
Other names/aliases HPRG
HRGP
THPH11
Species Homo sapiens
 Database cross references - HRG
ExoCarta ExoCarta_3273
Entrez Gene 3273
HGNC 5181
MIM 142640
UniProt P04196  
 HRG identified in exosomes derived from the following tissue/cell type
Platelets 25332113    
Platelets 25332113    
Platelets 25332113    
Urine 19056867    
 Gene ontology annotations for HRG
Molecular Function
    immunoglobulin binding GO:0019865 IDA
    protein binding GO:0005515 IPI
    serine-type endopeptidase inhibitor activity GO:0004867 IEA
    heme binding GO:0020037 IDA
    cysteine-type endopeptidase inhibitor activity GO:0004869 IEA
    metal ion binding GO:0046872 IDA
    heparin binding GO:0008201 IDA
    receptor binding GO:0005102 IDA
    heparan sulfate proteoglycan binding GO:0043395 IDA
    zinc ion binding GO:0008270 IDA
Biological Process
    defense response to fungus GO:0050832 IDA
    negative regulation of cell adhesion GO:0007162 IDA
    regulation of protein complex assembly GO:0043254 IDA
    positive regulation of apoptotic process GO:0043065 IDA
    platelet degranulation GO:0002576 TAS
    fibrinolysis GO:0042730 TAS
    negative regulation of angiogenesis GO:0016525 IDA
    positive regulation of focal adhesion assembly GO:0051894 IDA
    negative regulation of blood vessel endothelial cell migration GO:0043537 ISS
    angiogenesis GO:0001525 IEA
    regulation of transcription from RNA polymerase II promoter in response to iron GO:0034395 IEA
    regulation of blood coagulation GO:0030193 IDA
    positive regulation of immune response to tumor cell GO:0002839 IDA
    blood coagulation GO:0007596 TAS
    regulation of peptidyl-tyrosine phosphorylation GO:0050730 IDA
    regulation of platelet activation GO:0010543 ISS
    negative regulation of cell proliferation GO:0008285 IDA
    regulation of actin cytoskeleton organization GO:0032956 IDA
    regulation of gene expression GO:0010468 IDA
    negative regulation of cell adhesion mediated by integrin GO:0033629 IDA
    heme export GO:0097037 IEA
    negative regulation of vascular endothelial growth factor signaling pathway GO:1900747 IDA
    negative regulation of fibrinolysis GO:0051918 IEA
    platelet activation GO:0030168 TAS
    negative regulation of endothelial cell chemotaxis GO:2001027 IDA
    negative regulation of lamellipodium assembly GO:0010593 IDA
    negative regulation of cell growth GO:0030308 IDA
    response to organic cyclic compound GO:0014070 IEA
    positive regulation of blood vessel remodeling GO:2000504 IDA
    chemotaxis GO:0006935 IEA
    negative regulation of endopeptidase activity GO:0010951 IEA
Subcellular Localization
    extracellular exosome GO:0070062 IDA
    plasma membrane GO:0005886 TAS
    phagolysosome membrane GO:0061474 IEA
    extracellular region GO:0005576 TAS
    blood microparticle GO:0072562 IDA
    platelet alpha granule lumen GO:0031093 TAS
    endolysosome GO:0036019 IEA
 Experiment description of studies that identified HRG in exosomes
1
Experiment ID 231
ISEV standards
EV Biophysical techniques
Alix
EV Cytosolic markers
CD63|CD9
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Western blotting
Mass spectrometry
2
Experiment ID 232
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 233
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 3
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
4
Experiment ID 63
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
AQP2
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19056867    
Organism Homo sapiens
Experiment description Large-scale proteomics and phosphoproteomics of urinary exosomes.
Authors Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta R, Wang NS, Knepper MA
Journal name JASN
Publication year 2009
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
 Protein-protein interactions for HRG
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 FGA 2243
Invivo Homo sapiens
2 C1QA 712
Invivo Homo sapiens
3 C1QB 713
Invivo Homo sapiens
View the network image/svg+xml
 Pathways in which HRG is involved
PathwayEvidenceSource
Dissolution of Fibrin Clot TAS Reactome
Platelet degranulation TAS Reactome





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