Gene description for CPOX
Gene name coproporphyrinogen oxidase
Gene symbol CPOX
Other names/aliases CPO
CPX
HCP
Species Homo sapiens
 Database cross references - CPOX
ExoCarta ExoCarta_1371
Vesiclepedia VP_1371
Entrez Gene 1371
HGNC 2321
MIM 612732
UniProt P36551  
 CPOX 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 23161513    
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Embryonic kidney cells 34108659    
Embryonic kidney cells 34108659    
Pancreatic cancer cells 34108659    
Pancreatic cancer cells 34108659    
Squamous carcinoma cells 20124223    
 Gene ontology annotations for CPOX
Molecular Function
    coproporphyrinogen oxidase activity GO:0004109 IBA
    coproporphyrinogen oxidase activity GO:0004109 IDA
    structural constituent of eye lens GO:0005212 IEA
    protein homodimerization activity GO:0042803 IDA
Biological Process
    protoporphyrinogen IX biosynthetic process GO:0006782 IBA
    protoporphyrinogen IX biosynthetic process GO:0006782 IEA
    heme biosynthetic process GO:0006783 TAS
    heme A biosynthetic process GO:0006784 IEA
    heme B biosynthetic process GO:0006785 IEA
    heme O biosynthetic process GO:0048034 IEA
Subcellular Localization
    cytoplasm GO:0005737 IBA
    mitochondrion GO:0005739 HTP
    mitochondrion GO:0005739 IDA
    mitochondrial intermembrane space GO:0005758 TAS
    cytosol GO:0005829 IDA
    membrane GO:0016020 IEA
 Experiment description of studies that identified CPOX 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 207
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP70|FLOT1
Enriched markers
✔
VDAC
Negative markers
✔
NTA
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
8
Experiment ID 208
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP70|FLOT1
Enriched markers
✔
VDAC
Negative markers
✔
NTA
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
9
Experiment ID 209
MISEV standards
✘ Biophysical techniques
✔
TSG101|HSP70|FLOT1
Enriched markers
✔
VDAC
Negative markers
✔
NTA
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
10
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
11
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
12
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
13
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
14
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
15
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
16
Experiment ID 191
MISEV standards
✘ Biophysical techniques
✔
Alix|CD81|CD9
Enriched markers
✘ Negative markers
✘ 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 CPOX
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 NDUFAB1 4706
Co-fractionation Homo sapiens
2 C16orf72 29035
Affinity Capture-MS Homo sapiens
3 HNRNPDL 9987
Co-fractionation Homo sapiens
4 PLEKHA4 57664
Affinity Capture-MS Homo sapiens
5 PHB2 11331
Proximity Label-MS Homo sapiens
6 FDX1 2230
Co-fractionation Homo sapiens
7 NUDT9 53343
Co-fractionation Homo sapiens
8 SLC25A12 8604
Proximity Label-MS Homo sapiens
9 SOD1 6647
Co-fractionation Homo sapiens
10 AIFM1 9131
Co-fractionation Homo sapiens
Proximity Label-MS Homo sapiens
11 PCNA 5111
Co-fractionation Homo sapiens
12 HSPA8 3312
Co-fractionation Homo sapiens
13 TRNT1 51095
Co-fractionation Homo sapiens
14 TPR 7175
Co-fractionation Homo sapiens
15 PSMA4 5685
Co-fractionation Homo sapiens
16 UBE2G2  
Two-hybrid Homo sapiens
17 PSMD11 5717
Co-fractionation Homo sapiens
18 APOO 79135
Proximity Label-MS Homo sapiens
19 PPA1 5464
Co-fractionation Homo sapiens
20 GCSH 2653
Co-fractionation Homo sapiens
21 YBX1 4904
Co-fractionation Homo sapiens
22 CDC37 11140
Co-fractionation Homo sapiens
23 ATP5A1 498
Co-fractionation Homo sapiens
24 C10orf2 56652
Co-fractionation Homo sapiens
25 CUL3 8452
Affinity Capture-MS Homo sapiens
26 EEF1A1 1915
Co-fractionation Homo sapiens
27 YARS 8565
Co-fractionation Homo sapiens
28 HSP90AB1 3326
Co-fractionation Homo sapiens
29 SSB 6741
Co-fractionation Homo sapiens
30 ELAVL1 1994
Affinity Capture-RNA Homo sapiens
31 CCT2 10576
Co-fractionation Homo sapiens
32 MAP7 9053
Co-fractionation Homo sapiens
33 RAB1A 5861
Co-fractionation Homo sapiens
34 HNRNPA0 10949
Co-fractionation Homo sapiens
35 HNRNPK 3190
Co-fractionation Homo sapiens
36 CCT7 10574
Co-fractionation Homo sapiens
37 HSPA5 3309
Co-fractionation Homo sapiens
38 SFXN1 94081
Proximity Label-MS Homo sapiens
39 DUSP13  
Affinity Capture-MS Homo sapiens
40 CTSD 1509
Co-fractionation Homo sapiens
41 DIABLO 56616
Proximity Label-MS Homo sapiens
42 GART 2618
Co-fractionation Homo sapiens
43 PPP1R12A 4659
Co-fractionation Homo sapiens
44 TCF4  
Affinity Capture-MS Homo sapiens
45 DYNLL1 8655
Co-fractionation Homo sapiens
46 SERBP1 26135
Affinity Capture-MS Homo sapiens
47 EIF4B 1975
Co-fractionation Homo sapiens
48 RRM1 6240
Co-fractionation Homo sapiens
49 MCM2 4171
Affinity Capture-MS Homo sapiens
50 HIST1H1C 3006
Co-fractionation Homo sapiens
51 SLC25A51  
Proximity Label-MS Homo sapiens
52 TPI1 7167
Co-fractionation Homo sapiens
53 LDLR 3949
Negative Genetic Homo sapiens
54 FH 2271
Co-fractionation Homo sapiens
55 ACTB 60
Co-fractionation Homo sapiens
56 C9orf72  
Affinity Capture-MS Homo sapiens
57 NUCKS1 64710
Co-fractionation Homo sapiens
58 STYX  
Affinity Capture-MS Homo sapiens
59 ATOH1  
Affinity Capture-MS Homo sapiens
60 WARS 7453
Co-fractionation Homo sapiens
61 NUDC 10726
Co-fractionation Homo sapiens
62 COPZ1 22818
Co-fractionation Homo sapiens
63 HSPH1 10808
Co-fractionation Homo sapiens
64 FDX1L  
Co-fractionation Homo sapiens
65 HDGF 3068
Co-fractionation Homo sapiens
66 ILF3 3609
Co-fractionation Homo sapiens
67 GUSB 2990
Co-fractionation Homo sapiens
68 CARS 833
Co-fractionation Homo sapiens
69 TXNRD1 7296
Co-fractionation Homo sapiens
70 CACYBP 27101
Co-fractionation Homo sapiens
71 COX4I1 1327
Proximity Label-MS Homo sapiens
View the network image/svg+xml
 Pathways in which CPOX is involved
PathwayEvidenceSource
Heme biosynthesis TAS Reactome
Metabolism TAS Reactome
Metabolism of porphyrins TAS Reactome





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