Gene description for PPAT
Gene name phosphoribosyl pyrophosphate amidotransferase
Gene symbol PPAT
Other names/aliases ATASE
GPAT
PRAT
Species Homo sapiens
 Database cross references - PPAT
ExoCarta ExoCarta_5471
Vesiclepedia VP_5471
Entrez Gene 5471
HGNC 9238
MIM 172450
UniProt Q06203  
 PPAT identified in exosomes derived from the following tissue/cell type
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Breast cancer cells 34108659    
Breast cancer cells 34108659    
Colorectal cancer cells 34887515    
Embryonic kidney cells 34108659    
Embryonic kidney cells 34108659    
Mesenchymal stem cells 36408942    
Neuroblastoma cells 25944692    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Pancreatic cancer cells 34108659    
Pancreatic cancer cells 34108659    
Thymus 23844026    
 Gene ontology annotations for PPAT
Molecular Function
    amidophosphoribosyltransferase activity GO:0004044 IBA
    protein binding GO:0005515 IPI
    metal ion binding GO:0046872 IEA
    4 iron, 4 sulfur cluster binding GO:0051539 IEA
Biological Process
    purine nucleotide biosynthetic process GO:0006164 IBA
    GMP biosynthetic process GO:0006177 IEA
    'de novo' IMP biosynthetic process GO:0006189 IEA
    purine nucleobase biosynthetic process GO:0009113 IEA
    'de novo' AMP biosynthetic process GO:0044208 IEA
    'de novo' XMP biosynthetic process GO:0097294 IEA
Subcellular Localization
    cytosol GO:0005829 TAS
 Experiment description of studies that identified PPAT in exosomes
1
Experiment ID 489
MISEV standards
EM
Biophysical techniques
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
Canx
Negative markers
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
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 Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 6
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
2
Experiment ID 490
MISEV standards
EM
Biophysical techniques
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
Canx
Negative markers
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
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 Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 7
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
3
Experiment ID 491
MISEV standards
EM
Biophysical techniques
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
Canx
Negative markers
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
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 Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 8
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
4
Experiment ID 492
MISEV standards
EM
Biophysical techniques
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
Canx
Negative markers
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Rattus norvegicus
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 Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 9
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
5
Experiment ID 426
MISEV standards
Biophysical techniques
SDCBP|FLOT1|CD81|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Breast cancer cells
Sample name MDA-MB-231 - Exo-rich fractions 7-10 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Size exclusion chromatography
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
6
Experiment ID 427
MISEV standards
Biophysical techniques
CD81|SDCBP|FLOT1|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Breast cancer cells
Sample name MDA-MB-231 - Exo-rich fractions 1-6 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
OptiPrep density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
7
Experiment ID 1203
MISEV standards
EM
Biophysical techniques
SDCBP|FLOT1|CD9|CD81|CD63|EPCAM|GAPDH|LAMP1|TFRC|CD151|CD82|LAMP2|RAB35|TSG101|FLOT2|RAB5B|ICAM1|RAB5A
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 34887515    
Organism Homo sapiens
Experiment description Supermeres are functional extracellular nanoparticles replete with disease biomarkers and therapeutic targets
Authors "Zhang Q, Jeppesen DK, Higginbotham JN, Graves-Deal R, Trinh VQ, Ramirez MA, Sohn Y, Neininger AC, Taneja N, McKinley ET, Niitsu H, Cao Z, Evans R, Glass SE, Ray KC, Fissell WH, Hill S, Rose KL, Huh WJ, Washington MK, Ayers GD, Burnette DT, Sharma S, Rome LH, Franklin JL, Lee YA, Liu Q, Coffey RJ."
Journal name Nat Cell Biol
Publication year 2021
Sample Colorectal cancer cells
Sample name DiFi
Isolation/purification methods Differential centrifugation
Filtration
Centrifugal ultrafiltration
Ultracentrifugation
OptiPrep density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
miRNA
Methods used in the study Western blotting
Mass spectrometry
RNA sequencing
8
Experiment ID 419
MISEV standards
Biophysical techniques
SDCBP|FLOT1|CD81|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Embryonic kidney cells
Sample name HEK293T - Exo-rich fractions 7-10 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Size exclusion chromatography
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
9
Experiment ID 419
MISEV standards
Biophysical techniques
SDCBP|FLOT1|CD81|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Embryonic kidney cells
Sample name HEK293T - Exo-rich fractions 7-10 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Size exclusion chromatography
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
10
Experiment ID 420
MISEV standards
Biophysical techniques
CD81|SDCBP|FLOT1|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Embryonic kidney cells
Sample name HEK293T - Exo-rich fractions 1-6 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
OptiPrep density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
11
Experiment ID 420
MISEV standards
Biophysical techniques
CD81|SDCBP|FLOT1|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Embryonic kidney cells
Sample name HEK293T - Exo-rich fractions 1-6 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
OptiPrep density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
12
Experiment ID 488
MISEV standards
EM
Biophysical techniques
CD9|CD81|CD63|GAPDH|SDCBP|LAMP1|TFRC|UCHL1|FLOT2|LAMP2|FLOT1|ICAM1|RAB5B|CD151|RAB35|TSG101|RAB5A|CD82
Enriched markers
CANX
Negative markers
NTA
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
13
Experiment ID 224
MISEV standards
EM|AFM
Biophysical techniques
Alix|TSG101|CD63|CD81
Enriched markers
GOLGA2
Negative markers
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
14
Experiment ID 211
MISEV standards
EM
Biophysical techniques
TSG101|Alix|EpCAM|TFRC
Enriched markers
cytochrome c|GOLGA2
Negative markers
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
15
Experiment ID 212
MISEV standards
CEM
Biophysical techniques
TSG101|Alix|EpCAM|TFRC
Enriched markers
Cytochrome C|GOLGA2
Negative markers
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
16
Experiment ID 434
MISEV standards
Biophysical techniques
SDCBP|FLOT1|CD81|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Pancreatic cancer cells
Sample name PANC-1 - Exo-rich fractions 7-10 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Size exclusion chromatography
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
17
Experiment ID 435
MISEV standards
Biophysical techniques
CD81|SDCBP|FLOT1|CD9|CD151|FLOT2|TSG101|LAMP1|TFRC|RAB5A|RAB35|GAPDH|UCHL1|ICAM1
Enriched markers
CANX
Negative markers
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 34108659    
Organism Homo sapiens
Experiment description Quantitative Proteomics Identifies the Core Proteome of Exosomes with Syntenin-1 as the highest abundant protein and a Putative Universal Biomarker
Authors "Kugeratski FG, Hodge K, Lilla S, McAndrews KM, Zhou X, Hwang RF, Zanivan S, Kalluri R."
Journal name Nat Cell Biol
Publication year 2021
Sample Pancreatic cancer cells
Sample name PANC-1 - Exo-rich fractions 1-6 pooled
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
OptiPrep density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
18
Experiment ID 217
MISEV standards
EM
Biophysical techniques
TSG101|CD81|CD9|CD63
Enriched markers
Negative markers
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23844026    
Organism Homo sapiens
Experiment description Characterization of human thymic exosomes.
Authors "Skogberg G, Gudmundsdottir J, van der Post S, Sandstrom K, Bruhn S, Benson M, Mincheva-Nilsson L, Baranov V, Telemo E, Ekwall O."
Journal name PLoS One
Publication year 2013
Sample Thymus
Sample name Normal-Thymus
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for PPAT
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 UBE2H 7328
Affinity Capture-MS Homo sapiens
2 ATXN1 6310
Two-hybrid Homo sapiens
3 MCM3 4172
Co-fractionation Homo sapiens
4 PARVA 55742
Co-fractionation Homo sapiens
5 CCZ1 51622
Affinity Capture-MS Homo sapiens
6 ARHGAP1 392
Co-fractionation Homo sapiens
7 PLEKHA4 57664
Affinity Capture-MS Homo sapiens
8 FBXW11  
Affinity Capture-MS Homo sapiens
9 IMPDH2 3615
Co-fractionation Homo sapiens
10 GART 2618
Co-fractionation Homo sapiens
Co-fractionation Homo sapiens
11 PRPS2 5634
Co-fractionation Homo sapiens
12 CIAO1 9391
Affinity Capture-MS Homo sapiens
13 PAK1 5058
Co-fractionation Homo sapiens
14 RIT1 6016
Negative Genetic Homo sapiens
15 HSPA4 3308
Co-fractionation Homo sapiens
16 RPA2 6118
Proximity Label-MS Homo sapiens
17 RSU1 6251
Co-fractionation Homo sapiens
18 CARM1 10498
Co-fractionation Homo sapiens
19 CUL3 8452
Affinity Capture-MS Homo sapiens
20 SMURF1 57154
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
21 CRY1  
Affinity Capture-MS Homo sapiens
22 RANBP3 8498
Co-fractionation Homo sapiens
23 TROVE2 6738
Co-fractionation Homo sapiens
24 PARK2  
Affinity Capture-MS Homo sapiens
25 SHMT1 6470
Co-fractionation Homo sapiens
26 FAM96B 51647
Affinity Capture-MS Homo sapiens
27 G6PD 2539
Affinity Capture-MS Homo sapiens
28 FAM114A1 92689
Co-fractionation Homo sapiens
29 FASN 2194
Positive Genetic Homo sapiens
30 HDAC3 8841
Affinity Capture-MS Homo sapiens
31 MMS19 64210
Affinity Capture-MS Homo sapiens
32 RPA3 6119
Proximity Label-MS Homo sapiens
33 NTRK1 4914
Affinity Capture-MS Homo sapiens
34 NPEPL1 79716
Co-fractionation Homo sapiens
35 B2M 567
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
36 PPP2CA 5515
Co-fractionation Homo sapiens
37 HPRT1 3251
Co-fractionation Homo sapiens
38 SERBP1 26135
Affinity Capture-MS Homo sapiens
39 MEA1  
Co-fractionation Homo sapiens
40 SNX2 6643
Co-fractionation Homo sapiens
41 KRAS 3845
Synthetic Lethality Homo sapiens
Negative Genetic Homo sapiens
42 C9orf72  
Affinity Capture-MS Homo sapiens
43 ILK 3611
Co-fractionation Homo sapiens
44 HAX1  
Proximity Label-MS Homo sapiens
45 PRPS1 5631
Co-fractionation Homo sapiens
46 PRMT1 3276
Affinity Capture-MS Homo sapiens
47 TYMS 7298
Co-fractionation Homo sapiens
48 NUDT5 11164
Affinity Capture-MS Homo sapiens
Cross-Linking-MS (XL-MS) Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
49 CEBPA  
Protein-peptide Homo sapiens
50 EPT1 85465
Two-hybrid Homo sapiens
51 CARS 833
Co-fractionation Homo sapiens
52 OGT 8473
Reconstituted Complex Homo sapiens
53 PFAS 5198
Co-fractionation Homo sapiens
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