Gene description for GTF2B
Gene name general transcription factor IIB
Gene symbol GTF2B
Other names/aliases TF2B
TFIIB
Species Homo sapiens
 Database cross references - GTF2B
ExoCarta ExoCarta_2959
Vesiclepedia VP_2959
Entrez Gene 2959
HGNC 4648
MIM 189963
UniProt Q00403  
 GTF2B identified in sEVs derived from the following tissue/cell type
Thymus 23844026    
 Gene ontology annotations for GTF2B
Molecular Function
    RNA polymerase II core promoter sequence-specific DNA binding GO:0000979 IBA
    RNA polymerase II core promoter sequence-specific DNA binding GO:0000979 IDA
    RNA polymerase II complex binding GO:0000993 IDA
    protein binding GO:0005515 IPI
    zinc ion binding GO:0008270 IDA
    RNA polymerase II general transcription initiation factor activity GO:0016251 IBA
    RNA polymerase II general transcription initiation factor activity GO:0016251 IDA
    acetyltransferase activity GO:0016407 IBA
    acetyltransferase activity GO:0016407 IDA
    TBP-class protein binding GO:0017025 IBA
    TBP-class protein binding GO:0017025 IPI
    histone H3K56 acetyltransferase activity GO:0032931 IEA
    histone H3K14 acetyltransferase activity GO:0036408 IEA
    histone H3K9 acetyltransferase activity GO:0043992 IEA
    histone H3K18 acetyltransferase activity GO:0043993 IEA
    histone H3K23 acetyltransferase activity GO:0043994 IEA
    histone H4K5 acetyltransferase activity GO:0043995 IEA
    histone H4K8 acetyltransferase activity GO:0043996 IEA
    histone H4K12 acetyltransferase activity GO:0043997 IEA
    histone H2AK5 acetyltransferase activity GO:0043999 IEA
    histone H2AK9 acetyltransferase activity GO:0044012 IEA
    histone H2BK5 acetyltransferase activity GO:0044014 IEA
    histone H2BK12 acetyltransferase activity GO:0044015 IEA
    histone H3K4 acetyltransferase activity GO:0044016 IEA
    histone H3K27 acetyltransferase activity GO:0044017 IEA
    histone H3K36 acetyltransferase activity GO:0044018 IEA
    nuclear thyroid hormone receptor binding GO:0046966 IPI
    histone H4K16 acetyltransferase activity GO:0046972 IEA
    DNA-binding transcription factor binding GO:0140297 IPI
    histone H3K122 acetyltransferase activity GO:0140908 IEA
    promoter-specific chromatin binding GO:1990841 IDA
Biological Process
    transcriptional start site selection at RNA polymerase II promoter GO:0001174 IBA
    transcriptional start site selection at RNA polymerase II promoter GO:0001174 IMP
    chromatin remodeling GO:0006338 IEA
    DNA-templated transcription initiation GO:0006352 IBA
    transcription by RNA polymerase II GO:0006366 IDA
    transcription by RNA polymerase II GO:0006366 IMP
    transcription initiation at RNA polymerase II promoter GO:0006367 IDA
    transcription initiation at RNA polymerase II promoter GO:0006367 IMP
    protein acetylation GO:0006473 IDA
    viral transcription GO:0019083 IDA
    viral transcription GO:0019083 IMP
    RNA polymerase II preinitiation complex assembly GO:0051123 IBA
    RNA polymerase II preinitiation complex assembly GO:0051123 IDA
    RNA polymerase II preinitiation complex assembly GO:0051123 IMP
    meiotic sister chromatid cohesion GO:0051177 IEA
    spindle assembly GO:0051225 IEA
    positive regulation of core promoter binding GO:1904798 IDA
    RNA polymerase II core complex assembly GO:1990114 IBA
    RNA polymerase II core complex assembly GO:1990114 IMP
Subcellular Localization
    kinetochore GO:0000776 IEA
    nucleus GO:0005634 IBA
    nucleus GO:0005634 IDA
    nucleoplasm GO:0005654 IDA
    nucleoplasm GO:0005654 TAS
    transcription factor TFIID complex GO:0005669 IDA
    chromosome GO:0005694 IDA
    nuclear body GO:0016604 IDA
    cell division site GO:0032153 IEA
    protein-DNA complex GO:0032993 IDA
    germinal vesicle GO:0042585 IEA
    RNA polymerase II transcription regulator complex GO:0090575 IDA
    RNA polymerase II transcription regulator complex GO:0090575 IMP
    transcription preinitiation complex GO:0097550 IBA
 Experiment description of studies that identified GTF2B in sEVs
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 GTF2B
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 UBE2H 7328
Affinity Capture-MS Homo sapiens
2 POLR2G 5436
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
3 RIT1 6016
Negative Genetic Homo sapiens
4 GTF2F1 2962
Co-purification Homo sapiens
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
5 TNIP1 10318
Two-hybrid Homo sapiens
Two-hybrid Homo sapiens
6 PKP2 5318
Affinity Capture-Western Homo sapiens
7 REL 5966
Reconstituted Complex Homo sapiens
8 ADRB2  
Two-hybrid Homo sapiens
9 MED9  
Affinity Capture-MS Homo sapiens
10 RPL10 6134
Affinity Capture-MS Homo sapiens
11 LSM4 25804
Co-fractionation Homo sapiens
12 TCEA1 6917
Reconstituted Complex Homo sapiens
13 NCOR1  
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
14 TAF9 6880
Two-hybrid Homo sapiens
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
15 GTF2E2  
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
16 POLR2I 5438
Affinity Capture-MS Homo sapiens
17 FBL 2091
Co-fractionation Homo sapiens
18 PSMC2 5701
Affinity Capture-Western Homo sapiens
19 SERPINB1 1992
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
20 PSMB9 5698
Co-fractionation Homo sapiens
21 DEPDC7  
Two-hybrid Homo sapiens
22 JCHAIN 3512
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
23 MECP2 4204
Reconstituted Complex Homo sapiens
24 MLXIPL  
Affinity Capture-MS Homo sapiens
25 MUC7 4589
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
26 MED4 29079
Affinity Capture-MS Homo sapiens
27 NCOA1  
Reconstituted Complex Homo sapiens
28 POLR2K  
Affinity Capture-MS Homo sapiens
29 OXSM  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
30 GOLGA6L9  
Two-hybrid Homo sapiens
31 CST2  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
32 NSUN2 54888
Co-fractionation Homo sapiens
33 RFC5 5985
Co-fractionation Homo sapiens
34 CTDP1 9150
Affinity Capture-MS Homo sapiens
35 SRA1 10011
Far Western Homo sapiens
36 CTBP1 1487
Reconstituted Complex Homo sapiens
37 ATF4  
Reconstituted Complex Homo sapiens
38 TAF11  
Co-purification Homo sapiens
Reconstituted Complex Homo sapiens
39 DRAP1 10589
Two-hybrid Homo sapiens
Two-hybrid Homo sapiens
40 FBXO25  
Biochemical Activity Homo sapiens
41 HMGCL 3155
Two-hybrid Homo sapiens
42 PRPF18  
Co-fractionation Homo sapiens
43 DHX9 1660
Affinity Capture-Western Homo sapiens
44 REST 5978
Reconstituted Complex Homo sapiens
45 NCOA4 8031
Reconstituted Complex Homo sapiens
46 POLR2B 5431
Affinity Capture-MS Homo sapiens
47 POU3F2  
Reconstituted Complex Homo sapiens
48 FOXF2  
Reconstituted Complex Homo sapiens
49 POLR2C 5432
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
50 PSMA3 5684
Affinity Capture-MS Homo sapiens
51 POLR3A 11128
Affinity Capture-Western Homo sapiens
52 POLR2H 5437
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
53 IGHA1 3493
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
54 POLR2E 5434
Far Western Homo sapiens
Reconstituted Complex Homo sapiens
Affinity Capture-MS Homo sapiens
Far Western Homo sapiens
Affinity Capture-Western Homo sapiens
55 IGKC 3514
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
56 CST1  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
57 TBPL1 9519
Reconstituted Complex Homo sapiens
58 CIITA  
Reconstituted Complex Homo sapiens
59 BCL3  
Reconstituted Complex Homo sapiens
60 NAP1L1 4673
Co-fractionation Homo sapiens
61 IKZF1  
Reconstituted Complex Homo sapiens
62 POLR2A 5430
Co-purification Homo sapiens
Reconstituted Complex Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
63 DUSP6 1848
Affinity Capture-MS Homo sapiens
64 NXF1 10482
Affinity Capture-Western Homo sapiens
65 THRA  
Reconstituted Complex Homo sapiens
66 TBP  
Co-crystal Structure Homo sapiens
Co-purification Homo sapiens
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
Co-crystal Structure Homo sapiens
Co-crystal Structure Homo sapiens
Reconstituted Complex Homo sapiens
67 AMY1C 278
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
68 JUN 3725
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
69 POLR2D  
Affinity Capture-MS Homo sapiens
Co-fractionation Homo sapiens
70 CST4 1472
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
71 MKX  
Affinity Capture-Western Homo sapiens
72 RPA3 6119
Proximity Label-MS Homo sapiens
73 SLC22A2 6582
Two-hybrid Homo sapiens
74 SAP25  
Affinity Capture-MS Homo sapiens
75 NR2F1  
Reconstituted Complex Homo sapiens
76 NR5A1  
Reconstituted Complex Homo sapiens
77 HIST1H2BG 8339
Proximity Label-MS Homo sapiens
78 MED14  
Affinity Capture-MS Homo sapiens
79 PIGR 5284
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
80 MED11  
Affinity Capture-MS Homo sapiens
81 RELA 5970
Reconstituted Complex Homo sapiens
82 MED19  
Affinity Capture-MS Homo sapiens
83 PLEKHA4 57664
Affinity Capture-MS Homo sapiens
84 POLR2F  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
85 ALKBH2  
Co-fractionation Homo sapiens
86 POLR2J  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
87 TP53 7157
Co-fractionation Homo sapiens
88 NME2P1 283458
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
89 SMURF1 57154
Affinity Capture-MS Homo sapiens
90 CREBBP  
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
91 LSM5  
Co-fractionation Homo sapiens
92 ESR1  
Reconstituted Complex Homo sapiens
93 KLF5  
Reconstituted Complex Homo sapiens
94 JAK3 3718
Two-hybrid Homo sapiens
95 MED21  
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
96 HSF1  
Reconstituted Complex Homo sapiens
97 ZG16B 124220
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
98 GTF2E1 2960
Reconstituted Complex Homo sapiens
Co-purification Homo sapiens
99 XRCC6 2547
Proximity Label-MS Homo sapiens
100 GTF2H4 2968
Co-purification Homo sapiens
Reconstituted Complex Homo sapiens
101 KRAS 3845
Negative Genetic Homo sapiens
102 PRB1  
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
103 NR1D2  
Reconstituted Complex Homo sapiens
104 EP300 2033
Reconstituted Complex Homo sapiens
105 MED28  
Affinity Capture-MS Homo sapiens
106 GTF2F2 2963
Reconstituted Complex Homo sapiens
Co-fractionation Homo sapiens
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