Gene description for POLB
Gene name polymerase (DNA directed), beta
Gene symbol POLB
Other names/aliases -
Species Homo sapiens
 Database cross references - POLB
ExoCarta ExoCarta_5423
Vesiclepedia VP_5423
Entrez Gene 5423
HGNC 9174
MIM 174760
UniProt P06746  
 POLB identified in exosomes derived from the following tissue/cell type
Thymus 23844026    
 Gene ontology annotations for POLB
Molecular Function
    damaged DNA binding GO:0003684 IEA
    DNA-directed DNA polymerase activity GO:0003887 IBA
    DNA-directed DNA polymerase activity GO:0003887 IDA
    DNA-directed DNA polymerase activity GO:0003887 TAS
    DNA-(apurinic or apyrimidinic site) endonuclease activity GO:0003906 TAS
    protein binding GO:0005515 IPI
    microtubule binding GO:0008017 IDA
    lyase activity GO:0016829 IDA
    enzyme binding GO:0019899 IPI
    metal ion binding GO:0046872 IEA
    5'-deoxyribose-5-phosphate lyase activity GO:0051575 IDA
    class I DNA-(apurinic or apyrimidinic site) endonuclease activity GO:0140078 IDA
Biological Process
    in utero embryonic development GO:0001701 IEA
    DNA-templated DNA replication GO:0006261 TAS
    DNA repair GO:0006281 TAS
    base-excision repair GO:0006284 IBA
    base-excision repair GO:0006284 IDA
    base-excision repair GO:0006284 IMP
    base-excision repair GO:0006284 TAS
    base-excision repair, gap-filling GO:0006287 TAS
    pyrimidine dimer repair GO:0006290 IEA
    nucleotide-excision repair, DNA gap filling GO:0006297 IMP
    double-strand break repair via nonhomologous end joining GO:0006303 IBA
    inflammatory response GO:0006954 IEA
    DNA damage response GO:0006974 IMP
    salivary gland morphogenesis GO:0007435 IEA
    intrinsic apoptotic signaling pathway in response to DNA damage GO:0008630 IEA
    response to gamma radiation GO:0010332 IEA
    somatic hypermutation of immunoglobulin genes GO:0016446 IEA
    response to ethanol GO:0045471 IEA
    lymph node development GO:0048535 IEA
    spleen development GO:0048536 IEA
    homeostasis of number of cells GO:0048872 IEA
    neuron apoptotic process GO:0051402 IEA
    response to hyperoxia GO:0055093 IEA
    immunoglobulin heavy chain V-D-J recombination GO:0071707 IEA
    DNA biosynthetic process GO:0071897 IEA
Subcellular Localization
    nucleus GO:0005634 IBA
    nucleus GO:0005634 IDA
    nucleoplasm GO:0005654 TAS
    cytoplasm GO:0005737 IDA
    microtubule GO:0005874 IDA
    spindle microtubule GO:0005876 IDA
    protein-containing complex GO:0032991 IDA
 Experiment description of studies that identified POLB in exosomes
1
Experiment ID 217
MISEV standards
EM
Biophysical techniques
TSG101|CD81|CD9|CD63
Enriched markers
Negative markers
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23844026    
Organism Homo sapiens
Experiment description Characterization of human thymic exosomes.
Authors "Skogberg G, Gudmundsdottir J, van der Post S, Sandstrom K, Bruhn S, Benson M, Mincheva-Nilsson L, Baranov V, Telemo E, Ekwall O."
Journal name PLoS One
Publication year 2013
Sample Thymus
Sample name Normal-Thymus
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for POLB
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 STUB1 10273
Biochemical Activity Homo sapiens
2 HIST2H2BE 8349
Affinity Capture-MS Homo sapiens
3 XPC  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
4 NUMA1 4926
Affinity Capture-MS Homo sapiens
5 CLIC1 1192
Co-fractionation Homo sapiens
6 PARP1 142
Reconstituted Complex Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
7 LIG3 3980
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Co-fractionation Homo sapiens
8 BCKDHB 594
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
9 HSD17B7 51478
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
10 HIST1H4A 8359
Affinity Capture-MS Homo sapiens
11 WRN 7486
Far Western Homo sapiens
12 SRPK2 6733
Biochemical Activity Homo sapiens
13 SSRP1 6749
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
14 CETN2 1069
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
15 BCKDHA 593
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
16 TLE1 7088
Two-hybrid Homo sapiens
17 HMGN5 79366
Affinity Capture-MS Homo sapiens
18 HIST2H2AB 317772
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
19 UNG  
Co-fractionation Homo sapiens
Co-purification Homo sapiens
20 TDP1  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
21 PNKP 11284
Affinity Capture-Western Homo sapiens
Two-hybrid Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
22 Ktn1  
Affinity Capture-MS Mus musculus
23 HIST1H2AG 8969
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
24 SNF8 11267
Co-fractionation Homo sapiens
25 EMX2  
Affinity Capture-MS Homo sapiens
26 PARP2  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
27 MMGT1 93380
Affinity Capture-MS Homo sapiens
28 PCNA 5111
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
29 APEX1 328
Two-hybrid Homo sapiens
Reconstituted Complex Homo sapiens
Affinity Capture-RNA Homo sapiens
Affinity Capture-Western Homo sapiens
30 KAT7  
Two-hybrid Homo sapiens
31 XRCC1 7515
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
Far Western Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
Far Western Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
Two-hybrid Homo sapiens
Reconstituted Complex Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
Reconstituted Complex Homo sapiens
Affinity Capture-MS Homo sapiens
32 NEIL1  
Far Western Homo sapiens
33 USP47 55031
Affinity Capture-Western Homo sapiens
34 EMC2 9694
Affinity Capture-MS Homo sapiens
35 TOP1 7150
Affinity Capture-MS Homo sapiens
36 EP300 2033
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
Biochemical Activity Homo sapiens
Reconstituted Complex Homo sapiens
37 TAF1D  
Affinity Capture-Western Homo sapiens
Two-hybrid Homo sapiens
38 Junb  
Affinity Capture-MS Mus musculus
39 TPP2 7174
Two-hybrid Homo sapiens
Two-hybrid Homo sapiens
40 CALM3 808
Affinity Capture-MS Homo sapiens
41 XRCC3  
Affinity Capture-MS Homo sapiens
42 APTX  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
43 NUCKS1 64710
Affinity Capture-MS Homo sapiens
44 HMGA1 3159
Affinity Capture-MS Homo sapiens
45 APLF  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
46 BRD3 8019
Affinity Capture-MS Homo sapiens
47 SUPT16H 11198
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
48 HUWE1 10075
Biochemical Activity Homo sapiens
49 NCAPG 64151
Affinity Capture-Western Homo sapiens
50 BRD4 23476
Affinity Capture-MS Homo sapiens
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