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1 TFIIH consists of a core that includes the DNA helicase
2 TFIIH contains three enzymatic functions and over 30 con
3 TFIIH DNA helicases, XPB and XPD, are also components in
4 TFIIH harbors mutations in two rare genetic disorders, t
5 TFIIH has been implicated in several fundamental cellula
6 TFIIH is a 10-subunit RNA polymerase II basal transcript
7 TFIIH is essential for both RNA polymerase II transcript
8 TFIIH is indispensable for nucleotide excision repair (N
9 TFIIH, whose recruitment to the PIC is known to be facil
12 merase II and transcript release occurs in a TFIIH-deficient repair extract but not in a reconstitute
13 lly associates with active Pol II genes in a TFIIH-dependent manner and travels across the gene with
14 g into three mechanistic classes that affect TFIIH helicase functions, protein interactions and inter
15 omplexity resulting from mutations affecting TFIIH has been attributed to the nucleotide excision rep
16 al interactions with DNA, RAD23B, CETN2, and TFIIH, whereas functional roles have not yet been assign
20 rast to Sir2, Tup1 prevents TBP, Pol II, and TFIIH recruitment to the HMLalpha1 promoter, thereby abr
21 ion of the cells by TNF-alpha, NF-kappaB and TFIIH are rapidly recruited to the promoter together wit
23 e role of the Srb8-11 complex, Mediator, and TFIIH, in CTD-dependent basal transcription by either mu
26 at of the general initiation factors TBP and TFIIH, occurs unimpeded to the silent HMRa1 and HMLalpha
27 transcription factors TBP, TFIIA, TFIIB and TFIIH and showed that these factors are essential for in
28 ivergent orthologs of TBP, TFIIA, TFIIB, and TFIIH which, together with the small nuclear RNA-activat
29 he size and complexity of Pol II, TFIID, and TFIIH have precluded their reconstitution from heterolog
31 TBP, TFIIA, TFIIB, Pol II, TFIIF, TFIIE and TFIIH onto promoter DNA using cryo-electron microscopy.
32 o reactions just before this step, TFIIE and TFIIH overcame the requirement for negative superhelicit
34 , preventing stable association of TFIIE and TFIIH, and thus blocks the initiation of mRNA synthesis.
38 (GTFs; TFIIA, TFIIB, TBP, TFIIE, TFIIF, and TFIIH) and escapes the promoter, but many of the mechani
39 sites of interaction with TFIIE, TFIIF, and TFIIH, serving to define their roles in the transcriptio
42 Positive Transcription Elongation Factor b), TFIIH, TFIIF, and FACT (Facilitates Chromatin Transcript
43 esting that a cross-talk might exist between TFIIH and a component of a chromatin remodeler complex i
45 ally, the CAK module inhibits DNA binding by TFIIH and thereby enhances XPC-dependent specific recrui
46 signaling deficiency, which can be caused by TFIIH impairment as well as by other mechanisms, results
47 bsequent scanning downstream, also driven by TFIIH, which requires displacement of the initial bubble
48 tion initiation process: bubble formation by TFIIH, which fills the Pol II active center with single-
50 ided by the kinetic proofreading provided by TFIIH, form a high-specificity complex at the damage sit
51 apid reinitiation and perhaps also to bypass TFIIH-dependent promoter melting; this open state would
52 as part of the transcription/repair complex TFIIH, cause three distinct phenotypes: cancer-prone xer
55 otential molecular switch that might control TFIIH composition and play a key role in the conversion
56 ion of a new, evolutionarily conserved, core TFIIH subunit is essential for our understanding of TFII
57 and, like strains carrying mutations in core TFIIH subunits, are sensitive to ultraviolet radiation.
58 s19 mutant cells, protein levels of the core TFIIH component Rad3 (XPD homologue) and Ssl2 (XPB homol
59 ty, Tfb5 was found to interact with the core TFIIH subunit Tfb2, but not with other NER proteins.
60 r conferring structural rigidity to the core TFIIH such that the complex is maintained in its functio
61 es an essential helicase subunit of the core TFIIH transcription initiation and DNA repairosome compl
62 he other four essential subunits of the core TFIIH, Tfb1, Tfb2, Ssl1, and Tfb4, and the TFIIK subunit
66 ts in enhanced basal transcription, enhanced TFIIH phosphorylation of the CTD, as well as binding of
72 the XPB subunit of the transcription factor TFIIH and initiation of RNA polymerase II mediated trans
75 we show that the basal transcription factor TFIIH is constitutively recruited by ER-Y537S, resulting
76 isubunit DNA repair and transcription factor TFIIH maintains an intricate cross-talk with different f
78 bunit of the DNA repair/transcription factor TFIIH result in distinct clinical entities, including th
80 ase activity of general transcription factor TFIIH, and subsequent CTD phosphorylation is involved in
81 components of the basal transcription factor TFIIH, and these mutations lead to impaired nucleotide e
82 gest subunit of general transcription factor TFIIH, and to cause degradation of the largest subunit R
84 ore form of the general transcription factor TFIIH, containing the helicases XPB, XPD and five 'struc
85 ), a component of human transcription factor TFIIH, in both B lymphocytes and epithelial cells, we hy
86 bunit of the eukaryotic transcription factor TFIIH, is essential for both initiation of transcription
88 integral subunit of the transcription factor TFIIH, which plays a dual role in DNA opening at RNA pol
97 F7 interacts with the transcription factors, TFIIH and P-TEFb, resulting in the inhibition of their P
98 pological regions" that function as hubs for TFIIH assembly and more than 35 conserved topological fe
100 of TCR proteins and reveal the mechanism for TFIIH recruitment to DNA damage-stalled RNAPIIo to initi
103 uggest that once the open complex is formed, TFIIH decays into an inactive configuration in the absen
109 Tfb6 does not, however, dissociate Ssl2 from TFIIH in the context of a fully assembled transcription
110 hat removal of the kinase complex TFIIK from TFIIH shifts the TSS in a yeast system upstream to the l
113 with the general transcription factor II H (TFIIH) it activates RNA polymerase II by hyperphosphoryl
114 NA repair factor, transcription factor II H (TFIIH) that catalyzes the unwinding of a damaged DNA dup
115 As a component of transcription factor II H (TFIIH), XPD is involved in DNA unwinding during nucleoti
119 it Med4 in an assay, including purified holo-TFIIH, and either Mediator or recombinant Med4 alone.
125 present the complete structure of the human TFIIH core complex, determined by phase-plate cryo-elect
127 indicates that the data can be explained if TFIIH integrates inputs from multiple signals, regulatin
128 ymerase II general transcription factor IIH (TFIIH) by affinity purification, by peptide sequence ana
135 a component of the transcription factor IIH (TFIIH) transcription complex and plays essential roles i
137 is a component of transcription factor IIH (TFIIH), which functions in transcription initiation and
138 n overlap with the transcription factor IIH (TFIIH)-dependent serine 5 phosphorylation events during
147 1 N-terminal extension (NTE) domain inhibits TFIIH function without affecting subunit association.
150 n ATP hydrolysis-dependent process involving TFIIH creates access to the junction, allowing incision.
152 add up to a molecular mass of about 500 kDa, TFIIH is also essential for nucleotide excision repair.
153 complementation group B [XPB]), the largest TFIIH subunit, with the same cells functionally compleme
154 of the +1 nucleosome, the combination of low TFIIH occupancy and high occupancy of the transcription
157 the DNA helicase subunit XPD/Rad3 in native TFIIH and is required for the integrity and function of
158 fied and biochemically characterized a novel TFIIH-associated protein complex in T. brucei (Med-T) co
160 clude that the recruitment and activation of TFIIH represents a rate-limiting step for the emergence
161 In transcription, the helicase activity of TFIIH functions to melt promoter DNA; however, the in vi
163 the in vitro basal transcription activity of TFIIH itself and impeding the efficient recruitment of t
164 suggesting that the E3 Ub ligase activity of TFIIH mediates the transcriptional response to DNA damag
165 he Ssl2 and DNA-dependent ATPase activity of TFIIH suggests that Ssl2 has a processivity of approxima
168 nly partial insight into the architecture of TFIIH and its interactions within transcription pre-init
169 he structure uncovers the molecular basis of TFIIH assembly, revealing how the recruitment of XPB by
170 Our understanding of the biochemistry of TFIIH has greatly benefited from studies focused on dise
171 ift analyses of PICs and characterization of TFIIH preparations carrying mutant XPB translocase subun
173 his picture, the key catalytic components of TFIIH, the Ssl2 ATPase/helicase and the Kin28 protein ki
175 ion and play a key role in the conversion of TFIIH from a factor active in transcription to a factor
177 C2-targeted genes are specifically devoid of TFIIH, known to phosphorylate RNA polymerase II (RNAPII)
180 n TC-NER is modulated by the distribution of TFIIH and Spt4/Spt5 in transcribed chromatin and Rad26 m
184 suggesting that the specific enhancement of TFIIH kinase activity results in Kin28 being the primary
185 an ssl2 mutant, encoding an altered form of TFIIH, as a suppressor of the cold-sensitive growth defe
189 lead us to conclude that other functions of TFIIH, rather than the kinase activity, are critical for
191 etailed time courses show that the levels of TFIIH at the promoter fluctuate in parallel with NF-kapp
196 preeclampsia and delineate the relevance of TFIIH, providing etiologic clues which could eventually
198 This review aims to depict the structure of TFIIH and to dissect the roles of its subunits in differ
201 ysically interacts with the Dmp52 subunit of TFIIH and co-localizes with TFIIH in the chromatin.
202 co-factor that can assist the XPB subunit of TFIIH during transcription initiation and the transition
205 roteasomal degradation of the XPB subunit of TFIIH, and concurrently suppresses acute HIV infection i
209 vivo function of the Cdk7 kinase subunit of TFIIH, which has been hypothesized to be involved in RNA
215 ubunit is essential for our understanding of TFIIH function in transcription, DNA repair and human di
216 e counterbalancing forces of two proteins on TFIIH--the FUSE binding protein (FBP) and the FBP-intera
220 binant CDK8 subcomplex identifies predicted (TFIIH and RNA polymerase II C-terminal domain [Pol II CT
222 Here, we characterize the first protistan TFIIH which was purified in its transcriptionally active
225 CTD phosphorylation by the serine 5-specific TFIIH complex, or its kinase module TFIIK, is indeed suf
229 have prepared homogeneous human ten-subunit TFIIH and its seven-subunit core (Core7) without the CAK
230 ructure analysis of purified Med-T and Med-T/TFIIH complexes by electron microscopy revealed that Med
232 her transcription factors, including P-TEFb, TFIIH, and CIITA, ensuring an orderly progression in tra
233 that govern Pol II initiation (e.g., TFIID, TFIIH, and Mediator), pausing, and elongation (e.g., DSI
235 TFIIA, TFIIB, TFIID (or TBP), TFIIE, TFIIF, TFIIH and TFIIK were positioned within promoters and exc
239 these disorders and underline the fact that TFIIH can be considered a promising target for therapeut
242 G and CSB in TCR initiation and suggest that TFIIH-dependent remodeling of stalled RNAPII without rel
251 ides with the end of the requirement for the TFIIH helicase for efficient transcript elongation.
252 Taken together, our results implicate the TFIIH kinase in placing bivalent Ser5 and Ser7 marks ear
258 To define their functions, we mutated the TFIIH-associated kinase Mcs6 and P-TEFb homologs Cdk9 an
259 also regulates transcription as part of the TFIIH basal transcription factor, is an attractive targe
260 NA repair, but only one other subunit of the TFIIH complex, the 5'-3' helicase XPD, has been identifi
261 ng an adequate cellular concentration of the TFIIH component Rad3 and suggest that Mms19 has distinct
262 re reveals the molecular architecture of the TFIIH core complex, the detailed structures of its const
263 lexes, combined with the localization of the TFIIH helicases XPD and XPB, support a DNA translocation
266 We also revealed that the recruitment of the TFIIH subunit TTDA, involved in trichothiodystrophy grou
268 at UVSSA is the key factor that recruits the TFIIH complex in a manner that is stimulated by CSB and
270 ted that the ATM protein interacted with the TFIIH basal transcription factor and the XPG protein of
271 VFV NSs protein is able to interact with the TFIIH subunit p62 inside infected cells and promotes its
272 ested the function of these regions in three TFIIH core module subunits, i.e., Ssl1, Tfb4, and Tfb2,
273 which induces c-MYC pulse regulation through TFIIH, and experimental depletion of MITF results in con
274 ressor (FIR) regulates transcription through TFIIH, these components have been speculated to be the m
279 uent between the two structures, trypanosome TFIIH lacked the knob-like CAK moiety and exhibited extr
280 YC promoter when far upstream element is via TFIIH helicase activity early in the transcription cycle
284 the cytoplasm, whereas its association with TFIIH occurs largely in the nucleus where TFIIH function
286 opurifies from yeast whole-cell extract with TFIIH, the largest general transcription factor required
292 han 35 conserved topological features within TFIIH, illuminating a network of interactions involved i
294 the small molecule triptolide (TPL), an XPB/TFIIH inhibitor, to block transcriptional initiation and
296 tide excision repair factors (RPA, XPA, XPC, TFIIH, XPG, and XPF-ERCC1), core DNA damage checkpoint p
297 , in addition to damaged DNA, RPA, XPA, XPC, TFIIH, XPG, XPF-ERCC1, ATR-ATRIP, TopBP1, and EXO1 const
298 he molecular architecture of human and yeast TFIIH by an integrative approach using chemical crosslin
299 Structures of complete 10-subunit yeast TFIIH and of a nested set of subcomplexes, containing 5,