Gene description for HPCA
Gene name hippocalcin
Gene symbol HPCA
Other names/aliases BDR2
Species Homo sapiens
 Database cross references - HPCA
ExoCarta ExoCarta_3208
Vesiclepedia VP_3208
Entrez Gene 3208
HGNC 5144
MIM 142622
UniProt P84074  
 HPCA identified in sEVs derived from the following tissue/cell type
Platelets 25332113    
Platelets 25332113    
Platelets 25332113    
 Gene ontology annotations for HPCA
Molecular Function
    actin binding GO:0003779 IDA
    calcium ion binding GO:0005509 IBA
    calcium ion binding GO:0005509 IDA
    calcium ion binding GO:0005509 NAS
    protein binding GO:0005515 IPI
    kinase binding GO:0019900 IEA
    identical protein binding GO:0042802 IDA
Biological Process
    regulation of signal transduction GO:0009966 IBA
    calcium-mediated signaling GO:0019722 IEA
    inner ear development GO:0048839 IEA
    retina development in camera-type eye GO:0060041 IEA
    cellular response to electrical stimulus GO:0071257 IEA
    cellular response to calcium ion GO:0071277 IMP
    positive regulation of protein targeting to membrane GO:0090314 IEA
    regulation of postsynaptic neurotransmitter receptor internalization GO:0099149 IEA
    regulation of voltage-gated calcium channel activity GO:1901385 IMP
    response to ketamine GO:1901986 IEA
    response to Aroclor 1254 GO:1904010 IEA
    cellular response to L-glutamate GO:1905232 IEA
Subcellular Localization
    cytoplasm GO:0005737 IDA
    cytosol GO:0005829 ISS
    membrane GO:0016020 ISS
    axon GO:0030424 IEA
    dendrite membrane GO:0032590 IEA
    neuronal cell body membrane GO:0032809 IEA
    dendrite cytoplasm GO:0032839 IEA
    perikaryon GO:0043204 IEA
    dendritic spine head GO:0044327 IEA
    glutamatergic synapse GO:0098978 IEA
 Experiment description of studies that identified HPCA in sEVs
1
Experiment ID 231
MISEV standards
Biophysical techniques
Alix|CD63|CD9
Enriched markers
Negative markers
NTA
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
MISEV standards
Biophysical techniques
Enriched markers
Negative markers
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
MISEV standards
Biophysical techniques
Enriched markers
Negative markers
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
 Protein-protein interactions for HPCA
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 GPM6A 2823
Affinity Capture-MS Homo sapiens
2 C1QTNF2  
Two-hybrid Homo sapiens
3 DNAAF2  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
4 AP2B1 163
Two-hybrid Homo sapiens
5 PRR35  
Two-hybrid Homo sapiens
6 TFRC 7037
Affinity Capture-Western Homo sapiens
7 KIAA1804  
Affinity Capture-MS Homo sapiens
8 TP53 7157
Affinity Capture-MS Homo sapiens
9 NCALD 83988
Affinity Capture-MS Homo sapiens
Cross-Linking-MS (XL-MS) Homo sapiens
Affinity Capture-MS Homo sapiens
10 HPCAL1 3241
Cross-Linking-MS (XL-MS) Homo sapiens
Affinity Capture-MS Homo sapiens
11 GATA5  
Two-hybrid Homo sapiens
12 GRM2 2912
Affinity Capture-Western Homo sapiens
13 CST3 1471
Affinity Capture-MS Homo sapiens
14 UQCRB 7381
Two-hybrid Homo sapiens
15 IL36RN  
Two-hybrid Homo sapiens
16 NAIP  
Reconstituted Complex Homo sapiens
17 VWC2  
Two-hybrid Homo sapiens
18 MAP3K9  
Affinity Capture-MS Homo sapiens
19 TXNRD3NB  
Affinity Capture-MS Homo sapiens
20 SLC16A3 9123
Two-hybrid Homo sapiens
21 NMT1 4836
Affinity Capture-MS Homo sapiens
22 ABHD6 57406
Affinity Capture-MS Homo sapiens
23 CKMT1A 548596
Two-hybrid Homo sapiens
24 DGUOK  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
25 DTX2 113878
Affinity Capture-MS Homo sapiens
26 NUFIP1  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
27 NMT2 9397
Affinity Capture-MS Homo sapiens
28 TPP2 7174
Affinity Capture-MS Homo sapiens
29 PUSL1  
Affinity Capture-MS Homo sapiens
30 HAX1  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
31 DHDDS  
Affinity Capture-MS Homo sapiens
32 ANKRD33B  
Affinity Capture-MS Homo sapiens
33 ENTHD2  
Two-hybrid Homo sapiens
34 MAP3K10  
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
35 CKMT1B 1159
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which HPCA is involved
No pathways found





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