Gene description for CRABP2
Gene name cellular retinoic acid binding protein 2
Gene symbol CRABP2
Other names/aliases CRABP-II
RBP6
Species Homo sapiens
 Database cross references - CRABP2
ExoCarta ExoCarta_1382
Vesiclepedia VP_1382
Entrez Gene 1382
HGNC 2339
MIM 180231
UniProt P29373  
 CRABP2 identified in sEVs derived from the following tissue/cell type
Breast cancer cells 19415654    
Breast cancer cells 34108659    
Breast cancer cells 34108659    
Embryonic kidney cells 34108659    
Embryonic kidney cells 34108659    
Pancreatic cancer cells 34108659    
Pancreatic cancer cells 34108659    
Urine 19056867    
 Gene ontology annotations for CRABP2
Molecular Function
    retinoic acid binding GO:0001972 IBA
    retinoid binding GO:0005501 TAS
    fatty acid binding GO:0005504 IBA
    protein binding GO:0005515 IPI
    retinal binding GO:0016918 IEA
    retinol binding GO:0019841 IEA
    cyclin binding GO:0030332 IDA
Biological Process
    regulation of DNA-templated transcription GO:0006355 TAS
    signal transduction GO:0007165 TAS
    epidermis development GO:0008544 TAS
    fatty acid transport GO:0015908 IBA
    embryonic forelimb morphogenesis GO:0035115 IEA
    retinoic acid metabolic process GO:0042573 IEA
    positive regulation of collateral sprouting GO:0048672 IEA
Subcellular Localization
    nucleus GO:0005634 IBA
    nucleus GO:0005634 IDA
    nucleoplasm GO:0005654 IDA
    nucleoplasm GO:0005654 TAS
    cytoplasm GO:0005737 IDA
    endoplasmic reticulum GO:0005783 IEA
    cytosol GO:0005829 IBA
    cytosol GO:0005829 IDA
    cytosol GO:0005829 TAS
    extracellular exosome GO:0070062 HDA
 Experiment description of studies that identified CRABP2 in sEVs
1
Experiment ID 65
MISEV standards
✘ Biophysical techniques
✔
HSP60|HSP27|GAPDH|FLOT2
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19415654    
Organism Homo sapiens
Experiment description Proteomics of MUC1-containing lipid rafts from plasma membranes and exosomes of human breast carcinoma cells MCF-7.
Authors "Staubach S, Razawi H, Hanisch FG."
Journal name PROTEOMICS
Publication year 2009
Sample Breast cancer cells
Sample name MCF-7
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [MALDI TOF]
Western blotting
2
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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
10
Experiment ID 63
MISEV standards
✘ Biophysical techniques
✔
AQP2
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19056867    
Organism Homo sapiens
Experiment description Large-scale proteomics and phosphoproteomics of urinary exosomes.
Authors "Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta R, Wang NS, Knepper MA"
Journal name JASN
Publication year 2009
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
 Protein-protein interactions for CRABP2
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 GSX1  
Affinity Capture-MS Homo sapiens
2 CHMP3 51652
Affinity Capture-MS Homo sapiens
3 PPP2R2B 5521
Affinity Capture-MS Homo sapiens
4 FCF1  
Affinity Capture-MS Homo sapiens
5 PLAGL2  
Affinity Capture-MS Homo sapiens
6 RPS6KL1  
Affinity Capture-MS Homo sapiens
7 DDX19B 11269
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
8 UBE2M 9040
Co-fractionation Homo sapiens
9 MBD4  
Affinity Capture-MS Homo sapiens
10 FLAD1 80308
Two-hybrid Homo sapiens
11 CDK15  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
12 TREX2  
Affinity Capture-MS Homo sapiens
13 CCDC155  
Two-hybrid Homo sapiens
Two-hybrid Homo sapiens
14 SOX2  
Affinity Capture-MS Homo sapiens
15 CCDC132 55610
Affinity Capture-MS Homo sapiens
16 KLHL11  
Affinity Capture-MS Homo sapiens
17 SRRT 51593
Affinity Capture-MS Homo sapiens
18 CDK2 1017
Affinity Capture-MS Homo sapiens
19 UBE2I 7329
Affinity Capture-Western Homo sapiens
20 ARL3 403
Co-fractionation Homo sapiens
21 GDF5 8200
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
22 NELFE 7936
Affinity Capture-MS Homo sapiens
23 TEFM  
Affinity Capture-MS Homo sapiens
24 FAM24B  
Affinity Capture-MS Homo sapiens
25 COA5  
Affinity Capture-MS Homo sapiens
26 GOT1 2805
Affinity Capture-MS Homo sapiens
27 HEBP1 50865
Co-fractionation Homo sapiens
28 ACTN2 88
Two-hybrid Homo sapiens
29 PDE4DIP 9659
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
30 TMSB4X 7114
Co-fractionation Homo sapiens
31 ISOC1 51015
Co-fractionation Homo sapiens
32 POU3F3  
Affinity Capture-MS Homo sapiens
33 HCN1  
Affinity Capture-MS Homo sapiens
34 UGT1A10  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
35 GABPA 2551
Affinity Capture-MS Homo sapiens
36 GUCY1A3  
Affinity Capture-MS Homo sapiens
37 STX17 55014
Affinity Capture-MS Homo sapiens
38 RIPPLY3  
Affinity Capture-MS Homo sapiens
39 GSR 2936
Co-fractionation Homo sapiens
40 OR2A4 79541
Affinity Capture-MS Homo sapiens
41 CCND3  
Two-hybrid Homo sapiens
Affinity Capture-Western Homo sapiens
Two-hybrid Homo sapiens
Reconstituted Complex Homo sapiens
View the network image/svg+xml
 Pathways in which CRABP2 is involved
PathwayEvidenceSource
Signal Transduction TAS Reactome
Signaling by Nuclear Receptors TAS Reactome
Signaling by Retinoic Acid TAS Reactome





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