Gene description for COL4A1
Gene name collagen, type IV, alpha 1
Gene symbol COL4A1
Other names/aliases BSVD
Species Homo sapiens
 Database cross references - COL4A1
ExoCarta ExoCarta_1282
Entrez Gene 1282
HGNC 2202
MIM 120130
UniProt P02462  
 COL4A1 identified in exosomes derived from the following tissue/cell type
Mesenchymal stem cells Unpublished / Not applicable
 Gene ontology annotations for COL4A1
Molecular Function
    extracellular matrix constituent conferring elasticity GO:0030023 IC
    extracellular matrix structural constituent GO:0005201 IMP
    platelet-derived growth factor binding GO:0048407 IDA
    protein binding GO:0005515 IPI
Biological Process
    blood vessel morphogenesis GO:0048514 IMP
    extracellular matrix disassembly GO:0022617 TAS
    cellular response to amino acid stimulus GO:0071230 IEA
    extracellular matrix organization GO:0030198 TAS
    axon guidance GO:0007411 TAS
    receptor-mediated endocytosis GO:0006898 TAS
    neuromuscular junction development GO:0007528 IEA
    brain development GO:0007420 IMP
    collagen catabolic process GO:0030574 TAS
    retinal blood vessel morphogenesis GO:0061304 IMP
    basement membrane organization GO:0071711 IMP
    renal tubule morphogenesis GO:0061333 IMP
    patterning of blood vessels GO:0001569 IMP
    epithelial cell differentiation GO:0030855 IEA
Subcellular Localization
    extracellular matrix GO:0031012 ISS
    extracellular region GO:0005576 TAS
    endoplasmic reticulum lumen GO:0005788 TAS
    basement membrane GO:0005604 IC
    collagen type IV trimer GO:0005587 IMP
 Experiment description of studies that identified COL4A1 in exosomes
Experiment ID 126
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry [LTQ-FT Ultra]
PubMed ID Unpublished / Not applicable
Organism Homo sapiens
Experiment description Mesenchymal Stem Cell Exosomes: The Future MSC-based Therapy?
Authors Ruenn Chai Lai, Ronne Wee Yeh Yeo, Soon Sim Tan, Bin Zhang, Yijun Yin, Newman Siu Kwan Sze, Andre Choo, and Sai Kiang Lim
Journal name Mesenchymal Stem Cell Therapy
Publication year 2011
Sample Mesenchymal stem cells
Sample name huES9.E1
Isolation/purification methods HPLC
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Antobody array
Mass spectrometry
 Protein-protein interactions for COL4A1
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 APP 351
Invitro Homo sapiens
2 COL4A2 1284
Co-crystal Structure Homo sapiens
3 NID1 4811
Reconstituted Complex Homo sapiens
4 DISC1 27185
Two-hybrid Homo sapiens
5 HABP2  
Invivo Homo sapiens
6 FBLN2 2199
Invivo Homo sapiens
7 COL7A1 1294
Reconstituted Complex Homo sapiens
8 Nid1 18073
Reconstituted Complex Mus musculus
9 SERPINE2 5270
Invivo Homo sapiens
10 MMP9 4318
Invivo Homo sapiens
11 Igfbp7  
Affinity Capture-Western Mus musculus
12 OSM 5008
Invitro Homo sapiens
13 NID2 22795
Reconstituted Complex Homo sapiens
14 THBS1 7057
Reconstituted Complex Homo sapiens
15 COL4A1 1282
Co-crystal Structure Homo sapiens
Co-crystal Structure Homo sapiens
View the network image/svg+xml

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