Gene description for PABPC4
Gene name poly(A) binding protein, cytoplasmic 4 (inducible form)
Gene symbol PABPC4
Other names/aliases APP-1
APP1
PABP4
iPABP
Species Homo sapiens
 Database cross references - PABPC4
ExoCarta ExoCarta_8761
Entrez Gene 8761
HGNC 8557
MIM 603407
UniProt Q13310  
 PABPC4 identified in exosomes derived from the following tissue/cell type
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Hepatocellular carcinoma cells 26054723    
Hepatocellular carcinoma cells 26054723    
Neuroblastoma cells 25944692    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Prostate cancer cells 25844599    
Serum 25844599    
Serum 25844599    
Serum 25844599    
Serum 25844599    
Serum 25844599    
Squamous carcinoma cells 20124223    
 Gene ontology annotations for PABPC4
Molecular Function
    poly(C) RNA binding GO:0017130 IDA
    nucleotide binding GO:0000166 IEA
    protein binding GO:0005515 IPI
    poly(U) RNA binding GO:0008266 IDA
    poly(A) binding GO:0008143 IDA
    poly(A) RNA binding GO:0044822 IDA
Biological Process
    RNA catabolic process GO:0006401 TAS
    blood coagulation GO:0007596 TAS
    RNA processing GO:0006396 TAS
    translation GO:0006412 TAS
Subcellular Localization
    cytoplasm GO:0005737 IDA
    cytoplasmic stress granule GO:0010494 IDA
    ribonucleoprotein complex GO:0030529 IDA
    nucleus GO:0005634 IDA
 Experiment description of studies that identified PABPC4 in exosomes
1
Experiment ID 207
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP70
EV Cytosolic markers
FLOT1
EV Membrane markers
VDAC
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ.
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name DKO-1
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 208
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP70
EV Cytosolic markers
FLOT1
EV Membrane markers
VDAC
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ.
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name Dks-8
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 209
ISEV standards
EV Biophysical techniques
TSG101|HSP70
EV Cytosolic markers
FLOT1
EV Membrane markers
VDAC
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ.
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name DLD-1
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
4
Experiment ID 235
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix|HSC70|GAPDH
EV Cytosolic markers
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule mRNA
Identification method RNA Sequencing
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocellular carcinoma cells
Sample name HKCI-8
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RT-PCR
RNA Sequencing
5
Experiment ID 236
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix|HSC70|GAPDH
EV Cytosolic markers
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule mRNA
Identification method RNA Sequencing
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocellular carcinoma cells
Sample name MHCC97L
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RT-PCR
RNA Sequencing
6
Experiment ID 224
ISEV standards
EM|AFM
EV Biophysical techniques
Alix|TSG101
EV Cytosolic markers
CD63|CD81
EV Membrane markers
GOLGA2
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25944692    
Organism Homo sapiens
Experiment description Proteogenomic analysis reveals exosomes are more oncogenic than ectosomes
Authors Keerthikumar S, Gangoda L, Liem M, Fonseka P, Atukorala I, Ozcitti C, Mechler A, Adda CG, Ang CS, Mathivanan S
Journal name Oncotarget
Publication year 2015
Sample Neuroblastoma cells
Sample name SH-SY5Y
Isolation/purification methods Differential centrifugation
Ultracentrifugation
OptiPrep density gradient
Flotation density 1.10 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
7
Experiment ID 211
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
EpCAM|TFRC
EV Membrane markers
cytochrome c|GOLGA2
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name IGROV1
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
8
Experiment ID 212
ISEV standards
CEM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
EpCAM|TFRC
EV Membrane markers
Cytochrome C|GOLGA2
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name OVCAR-3
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
9
Experiment ID 274
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix|RAB5A
EV Cytosolic markers
CD9|CD82|CD63|CD81
EV Membrane markers
AIF
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25844599    
Organism Homo sapiens
Experiment description Molecular profiling of prostate cancer derived exosomes may reveal a predictive signature for response to docetaxel.
Authors Kharaziha P, Chioureas D, Rutishauser D, Baltatzis G, Lennartsson L, Fonseca P, Azimi A, Hultenby K, Zubarev R, Ullen A, Yachnin J, Nilsson S, Panaretakis T.
Journal name Oncotarget
Publication year 2015
Sample Prostate cancer cells
Sample name DU145 - Docetaxel resistant
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.18 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Flow cytometry
Western blotting
10
Experiment ID 276
ISEV standards
EV Biophysical techniques
Alix|RAB5A
EV Cytosolic markers
CD9
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25844599    
Organism Homo sapiens
Experiment description Molecular profiling of prostate cancer derived exosomes may reveal a predictive signature for response to docetaxel.
Authors Kharaziha P, Chioureas D, Rutishauser D, Baltatzis G, Lennartsson L, Fonseca P, Azimi A, Hultenby K, Zubarev R, Ullen A, Yachnin J, Nilsson S, Panaretakis T.
Journal name Oncotarget
Publication year 2015
Sample Serum
Sample name Serum - Docetaxel resistant castration resistant prostate cancer patient 1
Isolation/purification methods Filtration
Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
11
Experiment ID 278
ISEV standards
EV Biophysical techniques
Alix|RAB5A
EV Cytosolic markers
CD9
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25844599    
Organism Homo sapiens
Experiment description Molecular profiling of prostate cancer derived exosomes may reveal a predictive signature for response to docetaxel.
Authors Kharaziha P, Chioureas D, Rutishauser D, Baltatzis G, Lennartsson L, Fonseca P, Azimi A, Hultenby K, Zubarev R, Ullen A, Yachnin J, Nilsson S, Panaretakis T.
Journal name Oncotarget
Publication year 2015
Sample Serum
Sample name Serum - Docetaxel resistant castration resistant prostate cancer patient 3
Isolation/purification methods Filtration
Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
12
Experiment ID 279
ISEV standards
EV Biophysical techniques
Alix|RAB5A
EV Cytosolic markers
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25844599    
Organism Homo sapiens
Experiment description Molecular profiling of prostate cancer derived exosomes may reveal a predictive signature for response to docetaxel.
Authors Kharaziha P, Chioureas D, Rutishauser D, Baltatzis G, Lennartsson L, Fonseca P, Azimi A, Hultenby K, Zubarev R, Ullen A, Yachnin J, Nilsson S, Panaretakis T.
Journal name Oncotarget
Publication year 2015
Sample Serum
Sample name Serum - Docetaxel sensitive castration resistant prostate cancer patient 4
Isolation/purification methods Filtration
Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
13
Experiment ID 280
ISEV standards
EV Biophysical techniques
Alix|RAB5A
EV Cytosolic markers
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25844599    
Organism Homo sapiens
Experiment description Molecular profiling of prostate cancer derived exosomes may reveal a predictive signature for response to docetaxel.
Authors Kharaziha P, Chioureas D, Rutishauser D, Baltatzis G, Lennartsson L, Fonseca P, Azimi A, Hultenby K, Zubarev R, Ullen A, Yachnin J, Nilsson S, Panaretakis T.
Journal name Oncotarget
Publication year 2015
Sample Serum
Sample name Serum - Docetaxel sensitive castration resistant prostate cancer patient 5
Isolation/purification methods Filtration
Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
14
Experiment ID 281
ISEV standards
EV Biophysical techniques
Alix|RAB5A
EV Cytosolic markers
CD9
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25844599    
Organism Homo sapiens
Experiment description Molecular profiling of prostate cancer derived exosomes may reveal a predictive signature for response to docetaxel.
Authors Kharaziha P, Chioureas D, Rutishauser D, Baltatzis G, Lennartsson L, Fonseca P, Azimi A, Hultenby K, Zubarev R, Ullen A, Yachnin J, Nilsson S, Panaretakis T.
Journal name Oncotarget
Publication year 2015
Sample Serum
Sample name Serum - Docetaxel sensitive castration resistant prostate cancer patient 6
Isolation/purification methods Filtration
Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
15
Experiment ID 191
ISEV standards
EV Biophysical techniques
Alix
EV Cytosolic markers
CD81|CD9
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20124223    
Organism Homo sapiens
Experiment description Hypoxic tumor cell modulates its microenvironment to enhance angiogenic and metastatic potential by secretion of proteins and exosomes.
Authors Park JE, Tan HS, Datta A, Lai RC, Zhang H, Meng W, Lim SK, Sze SK.
Journal name Mol Cell Proteomics
Publication year 2010
Sample Squamous carcinoma cells
Sample name Squamous carcinoma cell (A431)
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for PABPC4
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 PPM1B 5495
Affinity Capture-MS Homo sapiens
2 HNF4A  
Affinity Capture-MS Homo sapiens
3 YWHAZ 7534
Affinity Capture-MS Homo sapiens
4 PINX1  
Affinity Capture-MS Homo sapiens
5 ARF6 382
Affinity Capture-MS Homo sapiens
6 PUF60 22827
Affinity Capture-MS Homo sapiens
7 XRN1 54464
Two-hybrid Homo sapiens
8 PHLDA1 22822
Invivo Homo sapiens
Invitro Homo sapiens
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which PABPC4 is involved
No pathways found





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