Gene description for PPP4R1
Gene name
protein phosphatase 4, regulatory subunit 1
Gene symbol
PPP4R1
Other names/aliases
MEG1 PP4(Rmeg) PP4R1
Species
Homo sapiens
Database cross references - PPP4R1
ExoCarta
ExoCarta_9989
Entrez Gene
9989
HGNC
9320
MIM
604908
UniProt
Q8TF05
PPP4R1 identified in exosomes derived from the following tissue/cell type
Hepatocellular carcinoma cells
26054723
Prostate cancer cells
25844599
Gene ontology annotations for PPP4R1
Experiment description of studies that identified PPP4R1 in exosomes
1
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
2
Experiment ID
275
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 sensitive
Isolation/purification methods
Filtration Ultracentrifugation Sucrose density gradient
Flotation density
1.12-1.19 g/mL
Molecules identified in the study
Protein
Methods used in the study
Mass spectrometry/Flow cytometry/Western blotting
Protein-protein interactions for PPP4R1
Protein Interactor
ExoCarta ID
Identification method
PubMed
Species
1
PPP4C
5531
Affinity Capture-MS
Homo sapiens
Affinity Capture-MS
Homo sapiens
Affinity Capture-Western
Homo sapiens
Affinity Capture-MS
Homo sapiens
Invitro
Homo sapiens
Invivo
Homo sapiens
Affinity Capture-MS
Homo sapiens
View the network
image/svg+xml
Pathways in which PPP4R1 is involved
No pathways found