Gene description for MEP1A
Gene name meprin A, alpha (PABA peptide hydrolase)
Gene symbol MEP1A
Other names/aliases PPHA
Species Homo sapiens
 Database cross references - MEP1A
ExoCarta ExoCarta_4224
Vesiclepedia VP_4224
Entrez Gene 4224
HGNC 7015
MIM 600388
UniProt Q16819  
 MEP1A identified in exosomes derived from the following tissue/cell type
Colorectal cancer cells 25890246    
Colorectal cancer cells 25890246    
Colorectal cancer cells 25890246    
Colorectal cancer cells 25890246    
Intestinal epithelial cells 11487543    
Mesenchymal stem cells 36408942    
 Gene ontology annotations for MEP1A
Molecular Function
    metalloendopeptidase activity GO:0004222 IEA
    protein binding GO:0005515 IPI
    zinc ion binding GO:0008270 IEA
Biological Process
    digestion GO:0007586 TAS
    proteolysis GO:0006508 IEA
Subcellular Localization
    meprin A complex GO:0017090 IEA
    extracellular space GO:0005615 TAS
    integral component of plasma membrane GO:0005887 TAS
    extracellular exosome GO:0070062 IDA
 Experiment description of studies that identified MEP1A in exosomes
1
Experiment ID 282
MISEV standards
CEM
EV Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
EV Enriched markers
EV Negative markers
DLS
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors Xu R, Greening DW, Rai A, Ji H, Simpson RJ.
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Ultracentrifugation - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
2
Experiment ID 283
MISEV standards
CEM
EV Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
EV Enriched markers
EV Negative markers
DLS
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors Xu R, Greening DW, Rai A, Ji H, Simpson RJ.
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Ultracentrifugation - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
3
Experiment ID 285
MISEV standards
CEM
EV Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
EV Enriched markers
EV Negative markers
DLS
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors Xu R, Greening DW, Rai A, Ji H, Simpson RJ.
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Sequential centrifugal ultrafiltration - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Sequential centrifugal ultrafiltration
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
4
Experiment ID 286
MISEV standards
CEM
EV Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
EV Enriched markers
EV Negative markers
DLS
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors Xu R, Greening DW, Rai A, Ji H, Simpson RJ.
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Sequential centrifugal ultrafiltration - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Sequential centrifugal ultrafiltration
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
5
Experiment ID 4
MISEV standards
IEM
EV Biophysical techniques
CD63|MHCI|MHCII
EV Enriched markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 11487543    
Organism Homo sapiens
Experiment description Intestinal epithelial cells secrete exosome-like vesicles.
Authors van Niel G, Raposo G, Candalh C, Boussac M, Hershberg R, Cerf-Bensussan N, Heyman M
Journal name Not applicable
Publication year 2001
Sample Intestinal epithelial cells
Sample name HT29-19A
T84-DRB1*0401/CIITA
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [MALDI TOF]
Western blotting
6
Experiment ID 488
MISEV standards
EM
EV Biophysical techniques
CD9|CD81|CD63|GAPDH|SDCBP|LAMP1|TFRC|UCHL1|FLOT2|LAMP2|FLOT1|ICAM1|RAB5B|CD151|RAB35|TSG101|RAB5A|CD82
EV Enriched markers
CANX
EV Negative markers
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Homo sapiens
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ.
Journal name Proteomics
Publication year 2023
Sample Mesenchymal stem cells
Sample name UCMSC
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
 Protein-protein interactions for MEP1A
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 GCTG  
Biochemical Activity Homo sapiens
2 FN1 2335
Invitro Homo sapiens
3 MEP1A 4224
Invitro Homo sapiens
Invitro Homo sapiens
4 GNRH1  
Biochemical Activity Homo sapiens
5 NTS  
Biochemical Activity Homo sapiens
6 BDKRB1 623
Biochemical Activity Homo sapiens
7 MEP1B 4225
Invitro Homo sapiens
8 PTH  
Biochemical Activity Homo sapiens
9 LAMA1 284217
Biochemical Activity Homo sapiens
10 VIP  
Biochemical Activity Homo sapiens
11 NPY  
Biochemical Activity Homo sapiens
12 LAMA5 3911
Biochemical Activity Homo sapiens
View the network image/svg+xml
 Pathways in which MEP1A is involved
No pathways found





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