Gene description for Ppia
Gene name peptidylprolyl isomerase A
Gene symbol Ppia
Other names/aliases 2700098C05
Cphn
CyP-18
CypA
Species Mus musculus
 Database cross references - Ppia
ExoCarta ExoCarta_268373
Entrez Gene 268373
UniProt P17742  
 Ppia identified in exosomes derived from the following tissue/cell type
Fibroblasts 23260141    
Mast cells 17486113    
Mov neuroglial cells 15210972    
Oligodendrocytes 21136642    
 Gene ontology annotations for Ppia
Molecular Function
    protein binding GO:0005515 IPI
    isomerase activity GO:0016853 IEA
    peptide binding GO:0042277 IEA
    poly(A) RNA binding GO:0044822 ISO
    peptidyl-prolyl cis-trans isomerase activity GO:0003755 ISO
    cyclosporin A binding GO:0016018 ISO
Biological Process
    positive regulation of viral genome replication GO:0045070 ISO
    neuron differentiation GO:0030182 IMP
    positive regulation of protein secretion GO:0050714 ISO
    protein folding GO:0006457 IEA
    lipid particle organization GO:0034389 ISO
    regulation of viral genome replication GO:0045069 ISO
    protein peptidyl-prolyl isomerization GO:0000413 ISO
Subcellular Localization
    cytoplasm GO:0005737 IEA
    membrane GO:0016020 ISO
    extracellular region GO:0005576 IEA
    extracellular space GO:0005615 ISO
    extracellular exosome GO:0070062 ISO
    myelin sheath GO:0043209 IDA
    cytosol GO:0005829 ISO
    focal adhesion GO:0005925 ISO
    nucleus GO:0005634 ISO
 Experiment description of studies that identified Ppia in exosomes
1
Experiment ID 210
ISEV standards
✔
EM
EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD81|FLOT1
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23260141    
Organism Mus musculus
Experiment description Exosomes Mediate Stromal Mobilization of Autocrine Wnt-PCP Signaling in Breast Cancer Cell Migration.
Authors Luga V, Zhang L, Viloria-Petit AM, Ogunjimi AA, Inanlou MR, Chiu E, Buchanan M, Hosein AN, Basik M, Wrana JL.
Journal name Cell
Publication year 2012
Sample Fibroblasts
Sample name Normal-Fibroblasts (L cells)
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 15
ISEV standards
✔
EM
EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD63
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 17486113    
Organism Mus musculus
Homo sapiens
Experiment description Exosome-mediated transfer of mRNAs and microRNAs is a novel mechanism of genetic exchange between cells.
Authors Valadi H, Ekstrom K, Bossios A, Sjostrand M, Lee JJ, Lotvall JO
Journal name NCB
Publication year 2007
Sample Mast cells
Sample name MC9
Bone marrow-derived mast cells
HMC-1
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.11-1.21 g/mL
Molecules identified in the study Protein
mRNA
miRNA
Methods used in the study Mass spectrometry [MALDI TOF]
Western blotting
Microarray
miRCURY LNA Array
3
Experiment ID 15
ISEV standards
✔
EM
EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD63
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule mrna
Identification method Microarray
PubMed ID 17486113    
Organism Mus musculus
Homo sapiens
Experiment description Exosome-mediated transfer of mRNAs and microRNAs is a novel mechanism of genetic exchange between cells.
Authors Valadi H, Ekstrom K, Bossios A, Sjostrand M, Lee JJ, Lotvall JO
Journal name NCB
Publication year 2007
Sample Mast cells
Sample name MC9
Bone marrow-derived mast cells
HMC-1
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.11-1.21 g/mL
Molecules identified in the study Protein
mRNA
miRNA
Methods used in the study Mass spectrometry [MALDI TOF]
Western blotting
Microarray
miRCURY LNA Array
4
Experiment ID 39
ISEV standards
✔
IEM
EV Biophysical techniques
✔
TSG101|HSC70
EV Cytosolic markers
✔
FLOT1
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 15210972    
Organism Mus musculus
Experiment description Cells release prions in association with exosomes.
Authors Fevrier B, Vilette D, Archer F, Loew D, Faigle W, Vidal M, Laude H, Raposo G
Journal name PNAS
Publication year 2004
Sample Mov neuroglial cells
Sample name Mov neuroglial cell
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.14 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QSTAR]
Western blotting
Immunoelectron Microscopy
5
Experiment ID 33
ISEV standards
✔
EM|IEM
EV Biophysical techniques
✔
Alix|TSG101
EV Cytosolic markers
✘ EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21136642    
Organism Mus musculus
Experiment description Oligodendrocytes secrete exosomes containing major myelin and stress-protective proteins: Trophic support for axons?
Authors Kramer-Albers EM, Bretz N, Tenzer S, Winterstein C, Mobius W, Berger H, Nave KA, Schild H, Trotter J
Journal name PROTEOMICS_CL
Publication year 2007
Sample Oligodendrocytes
Sample name Oligodendrocytes
Oli-neu
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.10-1.14 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
Western blotting
Immunoelectron Microscopy
 Protein-protein interactions for Ppia
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which Ppia is involved
PathwayEvidenceSource
Basigin interactions IEA Reactome





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