Gene description for DBI
Gene name diazepam binding inhibitor (GABA receptor modulator, acyl-CoA binding protein)
Gene symbol DBI
Other names/aliases ACBD1
ACBP
CCK-RP
EP
Species Homo sapiens
 Database cross references - DBI
ExoCarta ExoCarta_1622
Vesiclepedia VP_1622
Entrez Gene 1622
HGNC 2690
MIM 125950
UniProt P07108  
 DBI identified in exosomes derived from the following tissue/cell type
B cells 20458337    
B cells 20458337    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Gastric cancer cells 33991177    
Gastric cancer cells 33991177    
Gastric cancer cells 33991177    
Hepatocellular carcinoma cells 26054723    
Hepatocellular carcinoma cells 26054723    
Pancreatic duct fluid 29339034    
Pancreatic duct fluid 29339034    
Pancreatic duct fluid 29339034    
Urine 22418980    
Urine 22418980    
 Gene ontology annotations for DBI
Molecular Function
    fatty-acyl-CoA binding GO:0000062 IBA
    protein binding GO:0005515 IPI
    benzodiazepine receptor binding GO:0030156 TAS
    long-chain fatty acyl-CoA binding GO:0036042 IDA
    identical protein binding GO:0042802 IPI
Biological Process
    fatty acid metabolic process GO:0006631 IBA
    phosphatidylcholine acyl-chain remodeling GO:0036151 IDA
    negative regulation of protein lipidation GO:1903060 IDA
    positive regulation of CoA-transferase activity GO:1905920 IDA
    positive regulation of phospholipid transport GO:2001140 IDA
Subcellular Localization
    endoplasmic reticulum GO:0005783 IDA
    endoplasmic reticulum lumen GO:0005788 TAS
    Golgi apparatus GO:0005794 IDA
    protein-lipid complex GO:0032994 IDA
    extracellular exosome GO:0070062 HDA
    perinuclear endoplasmic reticulum GO:0097038 IDA
 Experiment description of studies that identified DBI in exosomes
1
Experiment ID 80
MISEV standards
✘ Biophysical techniques
✔
CD81|MHCII
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20458337    
Organism Homo sapiens
Experiment description MHC class II-associated proteins in B-cell exosomes and potential functional implications for exosome biogenesis -Sample 2
Authors "Buschow SI, van Balkom BW, Aalberts M, Heck AJ, Wauben M, Stoorvogel W."
Journal name ICB
Publication year 2010
Sample B cells
Sample name RN (HLA-DR15)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Immunobeads (MHC Class II)
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [FT-ICR]
Western blotting
2
Experiment ID 81
MISEV standards
✘ Biophysical techniques
✔
CD81|MHCII
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20458337    
Organism Homo sapiens
Experiment description MHC class II-associated proteins in B-cell exosomes and potential functional implications for exosome biogenesis - Sample 3
Authors "Buschow SI, van Balkom BW, Aalberts M, Heck AJ, Wauben M, Stoorvogel W."
Journal name ICB
Publication year 2010
Sample B cells
Sample name RN (HLA-DR15)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Immunobeads (MHC Class II)
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [FT-ICR]
Western blotting
3
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
4
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
5
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
6
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
7
Experiment ID 363
MISEV standards
✘ Biophysical techniques
✔
TSG101|GAPDH|AQP1|CD151|CD81|CD82|CD9|EPCAM|FLOT1|FLOT2|ICAM1|ITGA2B|LAMP2|RAB35|RAB5A|RAB5B|SDCBP|TFRC|UCHL1
Enriched markers
✔
DCLK1
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33991177    
Organism Homo sapiens
Experiment description Cancer stem cell marker DCLK1 reprograms small extracellular vesicles toward migratory phenotype in gastric cancer cells
Authors "Carli ALE, Afshar-Sterle S, Rai A, Fang H, O'Keefe R, Tse J, Ferguson FM, Gray NS, Ernst M, Greening DW, Buchert M."
Journal name Proteomics
Publication year 2021
Sample Gastric cancer cells
Sample name MKN1 - 100K pellet
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
8
Experiment ID 364
MISEV standards
✘ Biophysical techniques
✔
TSG101|GAPDH|AQP1|CD151|CD81|CD82|CD9|EPCAM|FLOT1|FLOT2|ICAM1|ITGA2B|LAMP2|RAB35|RAB5A|RAB5B|SDCBP|TFRC|UCHL1
Enriched markers
✔
DCLK1
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33991177    
Organism Homo sapiens
Experiment description Cancer stem cell marker DCLK1 reprograms small extracellular vesicles toward migratory phenotype in gastric cancer cells
Authors "Carli ALE, Afshar-Sterle S, Rai A, Fang H, O'Keefe R, Tse J, Ferguson FM, Gray NS, Ernst M, Greening DW, Buchert M."
Journal name Proteomics
Publication year 2021
Sample Gastric cancer cells
Sample name MKN1 - 100K pellet
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
9
Experiment ID 365
MISEV standards
✘ Biophysical techniques
✔
TSG101|GAPDH|AQP1|CD151|CD81|CD82|CD9|EPCAM|FLOT1|FLOT2|ICAM1|ITGA2B|LAMP2|RAB35|RAB5A|RAB5B|SDCBP|TFRC|UCHL1
Enriched markers
✔
DCLK1
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33991177    
Organism Homo sapiens
Experiment description Cancer stem cell marker DCLK1 reprograms small extracellular vesicles toward migratory phenotype in gastric cancer cells
Authors "Carli ALE, Afshar-Sterle S, Rai A, Fang H, O'Keefe R, Tse J, Ferguson FM, Gray NS, Ernst M, Greening DW, Buchert M."
Journal name Proteomics
Publication year 2021
Sample Gastric cancer cells
Sample name MKN1 - 100K pellet
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
10
Experiment ID 235
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|Alix|HSC70|GAPDH
Enriched markers
✔
HSP90B1
Negative markers
✔
qNano
Particle analysis
Identified molecule mRNA
Identification method RNA Sequencing
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors "He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N"
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocellular carcinoma cells
Sample name HKCI-8
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RT-PCR
RNA Sequencing
11
Experiment ID 236
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|Alix|HSC70|GAPDH
Enriched markers
✔
HSP90B1
Negative markers
✔
qNano
Particle analysis
Identified molecule mRNA
Identification method RNA Sequencing
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors "He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N"
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocellular carcinoma cells
Sample name MHCC97L
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RT-PCR
RNA Sequencing
12
Experiment ID 622
MISEV standards
✔
EM
Biophysical techniques
Enriched markers
✔
GOLGA2|CYC1
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 29339034    
Organism Homo sapiens
Experiment description Extracellular matrix proteins and carcinoembryonic antigen-related cell adhesion molecules characterize pancreatic duct fluid exosomes in patients with pancreatic cancer
Authors "Zheng J, Hernandez JM, Doussot A, Bojmar L, Zambirinis CP, Costa-Silva B, van Beek EJAH, Mark MT, Molina H, Askan G, Basturk O, Gonen M, Kingham TP, Allen PJ, D'Angelica MI, DeMatteo RP, Lyden D, Jarnagin WR."
Journal name HPB
Publication year 2018
Sample Pancreatic duct fluid
Sample name From patients with Pancreatic ductal adenocarcinoma
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
13
Experiment ID 623
MISEV standards
✘ Biophysical techniques
Enriched markers
✔
GOLGA2|CYC1
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 29339034    
Organism Homo sapiens
Experiment description Extracellular matrix proteins and carcinoembryonic antigen-related cell adhesion molecules characterize pancreatic duct fluid exosomes in patients with pancreatic cancer
Authors "Zheng J, Hernandez JM, Doussot A, Bojmar L, Zambirinis CP, Costa-Silva B, van Beek EJAH, Mark MT, Molina H, Askan G, Basturk O, Gonen M, Kingham TP, Allen PJ, D'Angelica MI, DeMatteo RP, Lyden D, Jarnagin WR."
Journal name HPB
Publication year 2018
Sample Pancreatic duct fluid
Sample name From patients with IPMN with microinvasive cancer (IPMNca)
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
14
Experiment ID 625
MISEV standards
✘ Biophysical techniques
Enriched markers
✔
GOLGA2|CYC1
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 29339034    
Organism Homo sapiens
Experiment description Extracellular matrix proteins and carcinoembryonic antigen-related cell adhesion molecules characterize pancreatic duct fluid exosomes in patients with pancreatic cancer
Authors "Zheng J, Hernandez JM, Doussot A, Bojmar L, Zambirinis CP, Costa-Silva B, van Beek EJAH, Mark MT, Molina H, Askan G, Basturk O, Gonen M, Kingham TP, Allen PJ, D'Angelica MI, DeMatteo RP, Lyden D, Jarnagin WR."
Journal name HPB
Publication year 2018
Sample Pancreatic duct fluid
Sample name From patients with benign pancreatic disease
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
15
Experiment ID 196
MISEV standards
✔
EM
Biophysical techniques
✔
Alix|TSG101|HSP70|CD9
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal high density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
16
Experiment ID 197
MISEV standards
✔
EM
Biophysical techniques
✔
Alix|TSG101|HSP70|CD9
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal low density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for DBI
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 HNRNPH1 3187
Affinity Capture-RNA Homo sapiens
2 HSPE1 3336
Co-fractionation Homo sapiens
3 NSFL1C 55968
Two-hybrid Homo sapiens
4 UBE2N 7334
Co-fractionation Homo sapiens
5 SOD1 6647
Co-fractionation Homo sapiens
6 RAD23A 5886
Two-hybrid Homo sapiens
7 GSK3B 2932
Two-hybrid Homo sapiens
8 PCDH1 5097
Affinity Capture-MS Homo sapiens
9 CRIP1 1396
Co-fractionation Homo sapiens
10 Itsn2  
Affinity Capture-MS Mus musculus
11 MCL1 4170
Co-fractionation Homo sapiens
12 Papss1  
Affinity Capture-MS Mus musculus
13 LGALS3 3958
Co-fractionation Homo sapiens
14 RAD23B 5887
Two-hybrid Homo sapiens
15 Cep135  
Affinity Capture-MS Mus musculus
16 CYSLTR2  
Two-hybrid Homo sapiens
17 PEBP1 5037
Co-fractionation Homo sapiens
18 DDIT4L  
Two-hybrid Homo sapiens
19 LAMTOR5 10542
Two-hybrid Homo sapiens
20 MAP1LC3B 81631
Two-hybrid Homo sapiens
21 PFDN2 5202
Two-hybrid Homo sapiens
22 TMEM132A 54972
Affinity Capture-MS Homo sapiens
23 RAB26  
Co-fractionation Homo sapiens
24 SLC25A32 81034
Co-fractionation Homo sapiens
25 YKT6 10652
Co-fractionation Homo sapiens
26 BICD1 636
Proximity Label-MS Homo sapiens
27 GALM 130589
Co-fractionation Homo sapiens
28 UBXN2A  
Two-hybrid Homo sapiens
29 DUSP23 54935
Two-hybrid Homo sapiens
30 NIPSNAP1 8508
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which DBI is involved
PathwayEvidenceSource
Fatty acid metabolism TAS Reactome
Metabolism TAS Reactome
Metabolism of lipids TAS Reactome
Mitochondrial Fatty Acid Beta-Oxidation TAS Reactome





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