Gene description for MAP1B
Gene name microtubule-associated protein 1B
Gene symbol MAP1B
Other names/aliases FUTSCH
MAP5
PPP1R102
Species Homo sapiens
 Database cross references - MAP1B
ExoCarta ExoCarta_4131
Entrez Gene 4131
HGNC 6836
MIM 157129
UniProt P46821  
 MAP1B identified in exosomes derived from the following tissue/cell type
Endothelial cells 26027894    
Hepatocellular carcinoma cells 26054723    
Neuroblastoma cells 25944692    
 Gene ontology annotations for MAP1B
Molecular Function
    microtubule binding GO:0008017 IEA
    structural molecule activity GO:0005198 NAS
    protein binding GO:0005515 IPI
Biological Process
    microtubule bundle formation GO:0001578 IEA
    negative regulation of intracellular transport GO:0032387 IEA
    dendrite development GO:0016358 IEA
    cellular process GO:0009987 IDA
    axon extension GO:0048675 IEA
    establishment of monopolar cell polarity GO:0061162 IEA
    mitochondrion transport along microtubule GO:0047497 IEA
    positive regulation of axon extension GO:0045773 IEA
Subcellular Localization
    dendritic spine GO:0043197 IEA
    cytosol GO:0005829 IEA
    microtubule associated complex GO:0005875 TAS
    cell junction GO:0030054 IEA
    plasma membrane GO:0005886 IDA
    microtubule GO:0005874 IEA
    postsynaptic density GO:0014069 IEA
    cytoplasm GO:0005737 IDA
 Experiment description of studies that identified MAP1B in exosomes
1
Experiment ID 226
ISEV standards
EM
EV Biophysical techniques
GAPDH
EV Cytosolic markers
CD9|FLOT1
EV Membrane markers
LMNA|H2AFX|ATP5A1|TOMM20
EV Negative markers
EV Particle analysis
Identified molecule mRNA
Identification method Small RNA sequencing (Illumina HiSeq 2000 (Solexa)
PubMed ID 26027894    
Organism Homo sapiens
Experiment description Quantitative and qualitative analysis of small RNAs in human endothelial cells and exosomes provides insights into localized RNA processing, degradation and sorting
Authors Bas W. M. van Balkom, Almut S. Eisele, D. Michiel Pegtel, Sander Bervoets, Marianne C. Verhaar
Journal name Journal of Extracellular Vesicles
Publication year 2015
Sample Endothelial cells
Sample name HMEC-1
Isolation/purification methods Differential ultracentrifugation
Sucrose density gradient
Flotation density 1.10 g/mL
Molecules identified in the study miRNA
Protein
snoRNA
lncRNA
yRNA
snRNA
mRNA
ncRNA
mtRNA
vtRNA
scaRNA
lincRNA
Methods used in the study Small RNA sequencing (Illumina HiSeq 2000 (Solexa)
Western blotting
2
Experiment ID 235
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix|HSC70|GAPDH
EV Cytosolic markers
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV 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
3
Experiment ID 224
ISEV standards
EM|AFM
EV Biophysical techniques
Alix|TSG101
EV Cytosolic markers
CD63|CD81
EV Membrane markers
GOLGA2
EV Negative markers
EV 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
 Protein-protein interactions for MAP1B
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 MAG  
Invivo Homo sapiens
2 SNCA 6622
Invitro Homo sapiens
Invivo Homo sapiens
3 MAP1A 4130
Invivo Homo sapiens
Invitro Homo sapiens
4 GAN 8139
Affinity Capture-Western Homo sapiens
5 RASSF1  
Affinity Capture-Western Homo sapiens
Two-hybrid Homo sapiens
6 ANP32A 8125
Two-hybrid Homo sapiens
Affinity Capture-Western Homo sapiens
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which MAP1B is involved
No pathways found





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