Gene description for TPPP
Gene name tubulin polymerization promoting protein
Gene symbol TPPP
Other names/aliases TPPP/p25
TPPP1
p24
p25
p25alpha
Species Homo sapiens
 Database cross references - TPPP
ExoCarta ExoCarta_11076
Vesiclepedia VP_11076
Entrez Gene 11076
HGNC 24164
MIM 608773
UniProt O94811  
 TPPP identified in sEVs derived from the following tissue/cell type
Gastric cancer cells 33991177    
Gastric cancer cells 33991177    
Gastric cancer cells 33991177    
Neuroblastoma cells 25944692    
 Gene ontology annotations for TPPP
Molecular Function
    magnesium ion binding GO:0000287 IDA
    GTPase activity GO:0003924 IDA
    protein binding GO:0005515 IPI
    microtubule binding GO:0008017 ISS
    tubulin binding GO:0015631 IBA
    tubulin binding GO:0015631 IDA
    tubulin binding GO:0015631 ISS
    protein homodimerization activity GO:0042803 IDA
    protein dimerization activity GO:0046983 IDA
    microtubule nucleator activity GO:0140490 IDA
    membrane scission GTPase motor activity GO:1990606 IEA
Biological Process
    microtubule bundle formation GO:0001578 IBA
    microtubule bundle formation GO:0001578 IDA
    microtubule bundle formation GO:0001578 ISS
    oligodendrocyte development GO:0014003 ISS
    astral microtubule organization GO:0030953 IDA
    positive regulation of protein-containing complex assembly GO:0031334 ISS
    positive regulation of myelination GO:0031643 ISS
    positive regulation of protein polymerization GO:0032273 IBA
    positive regulation of protein polymerization GO:0032273 IDA
    myelin assembly GO:0032288 ISS
    microtubule polymerization GO:0046785 IBA
    microtubule polymerization GO:0046785 IDA
    microtubule polymerization GO:0046785 ISS
    oligodendrocyte differentiation GO:0048709 ISS
    cell division GO:0051301 IEA
    microtubule nucleation by microtubule organizing center GO:0051418 IDA
    regulation of microtubule cytoskeleton organization GO:0070507 IDA
    negative regulation of tubulin deacetylation GO:1904428 IDA
Subcellular Localization
    nucleus GO:0005634 IDA
    cytoplasm GO:0005737 IDA
    mitochondrion GO:0005739 IDA
    Golgi apparatus GO:0005794 IDA
    microtubule organizing center GO:0005815 IEA
    cytosol GO:0005829 IDA
    microtubule GO:0005874 IBA
    microtubule GO:0005874 IDA
    perinuclear region of cytoplasm GO:0048471 IDA
    mitotic spindle GO:0072686 IDA
    microtubule bundle GO:0097427 IDA
    postsynaptic Golgi apparatus GO:0150051 ISS
 Experiment description of studies that identified TPPP in sEVs
1
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
2
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
3
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
4
Experiment ID 224
MISEV standards
EM|AFM
Biophysical techniques
Alix|TSG101|CD63|CD81
Enriched markers
GOLGA2
Negative markers
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 TPPP
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 HNRNPH1 3187
Affinity Capture-RNA Homo sapiens
2 MAN2C1 4123
Affinity Capture-MS Homo sapiens
3 SNCA 6622
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
4 PCTP  
Affinity Capture-MS Homo sapiens
5 FADD 8772
Affinity Capture-MS Homo sapiens
6 TUBB 203068
Reconstituted Complex Homo sapiens
7 SPTBN4 57731
Affinity Capture-MS Homo sapiens
8 CDK11B 984
Two-hybrid Homo sapiens
9 ROCK1 6093
Biochemical Activity Homo sapiens
10 SHOC2 8036
Co-fractionation Homo sapiens
11 LIN28A  
Affinity Capture-MS Homo sapiens
12 HDAC6 10013
Reconstituted Complex Homo sapiens
13 C2orf27B  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
14 CHST5  
Affinity Capture-MS Homo sapiens
15 GRPEL1 80273
Affinity Capture-MS Homo sapiens
16 SEMG2 6407
Affinity Capture-MS Homo sapiens
17 APP 351
Reconstituted Complex Homo sapiens
18 SEMG1 6406
Affinity Capture-MS Homo sapiens
19 DCAF10  
Affinity Capture-MS Homo sapiens
20 GNB2 2783
Affinity Capture-MS Homo sapiens
21 KLHL24  
Affinity Capture-MS Homo sapiens
22 ACPP 55
Affinity Capture-MS Homo sapiens
23 HIST1H1A 3024
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
24 ZNF114 163071
Two-hybrid Homo sapiens
25 IFT74 80173
Co-fractionation Homo sapiens
View the network image/svg+xml
 Pathways in which TPPP is involved
No pathways found





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