Xeroderma Pigmentosum
|
0.100 |
Biomarker
|
disease |
BEFREE |
TFIIH multi-protein complex with its important helicase-Xeroderma Pigmentosum Protein (XPD) serves as the pivotal factor for opening up of the damaged lesion DNA site and carry out the repair process.
|
29616226 |
2018 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
This provides first insights why so far no mutations in the p34 or p44 TFIIH-core subunits have been identified that would lead to the hallmark nucleotide excision repair syndromes xeroderma pigmentosum or trichothiodystrophy.
|
28977422 |
2017 |
Xeroderma Pigmentosum
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Mutations in the XPD subunit of the DNA repair/transcription factor TFIIH result in distinct clinical entities, including the cancer-prone xeroderma pigmentosum (XP) and the multisystem disorder trichothiodystrophy (TTD), which share only cutaneous photosensitivity.
|
25605938 |
2015 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
The subtle transcriptional differences found between various TFIIH variants thus participate in the phenotypic variability observed among XP, XP/CS, and TTD individuals.
|
25620205 |
2015 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Our results suggested a link between TTD- but not XP-associated XPD mutations, placental maldevelopment and risk of pregnancy complications, possibly due to impairment of TFIIH-mediated functions in placenta.
|
22234153 |
2012 |
Xeroderma Pigmentosum
|
0.100 |
Biomarker
|
disease |
BEFREE |
This integration resolves puzzles regarding XP helicase functions and suggests that XP helicase positions and activities within TFIIH detect and verify damage, select the damaged strand for incision, and coordinate repair with transcription and cell cycle through CAK signaling.
|
21571596 |
2011 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Mutations in the XPD subunit of the DNA repair/transcription factor TFIIH result in the rare recessive genetic disorder xeroderma pigmentosum (XP).
|
19934020 |
2009 |
Xeroderma Pigmentosum
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Mutations in certain subunits of the DNA repair/transcription factor complex TFIIH are linked to the human syndromes xeroderma pigmentosum (XP), Cockayne's syndrome (CS), and trichothiodystrophy (TTD).
|
19008953 |
2008 |
Xeroderma Pigmentosum
|
0.100 |
Biomarker
|
disease |
BEFREE |
Accordingly, defects in specific enzymatic functions typically result in XP, dissociation of the CAK subunit from TFIIH is associated with XP/CS and a more generalized destabilization of TFIIH gives rise to TTD.
|
18077223 |
2008 |
Xeroderma Pigmentosum
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
Defects in the xeroderma pigmentosum type B (XPB) gene (ERCC3), a DNA helicase involved in nucleotide excision repair (NER) and an essential subunit of the basal transcription factor, TFIIH, have been described in only three families.
|
16947863 |
2006 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
The severe xeroderma pigmentosum/Cockayne syndrome (XP/CS) syndrome is caused by mutations in the XPB, XPD and XPG genes that encode the helicase subunits of TFIIH and the 3' endonuclease of nucleotide excision repair (NER).
|
16167068 |
2006 |
Xeroderma Pigmentosum
|
0.100 |
Biomarker
|
disease |
BEFREE |
Moreover, when XPD mutations prevent interaction with the p44 subunit of TFIIH, transactivation directed by certain nuclear receptors is inhibited, regardless of TTD versus XP phenotype, thus explaining the overlapping symptoms.
|
12820975 |
2003 |
Xeroderma Pigmentosum
|
0.100 |
Biomarker
|
disease |
BEFREE |
Subtle differences in the effects of these different mutations on the many activities of TFIIH and on its stability determine the clinical outcomes, which can be XP, TTD, XP with CS, XP with TTD or COFS.
|
14726016 |
2003 |
Xeroderma Pigmentosum
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
We have also measured TFIIH levels in cells in which different mutations in the XPD gene are associated with clinical symptoms not of TTD but of the highly cancer-prone disorder xeroderma pigmentosum (XP).
|
12393803 |
2002 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Inherited mutations in the XPD subunit of the general transcription/repair factor TFIIH yield the rare genetic disorder Xeroderma pigmentosum (XP), the phenotypes of which cannot be explained solely on the basis of a DNA repair defect.
|
11955452 |
2002 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Mutations in the XPD helicase component of TFIIH can result in the diverse clinical features associated with xeroderma pigmentosum (XP) and trichothiodystrophy (TTD).
|
11734544 |
2001 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Inherited mutations of the TFIIH helicase subunits xeroderma pigmentosum (XP) B or XPD yield overlapping DNA repair and transcription syndromes.
|
11239393 |
2001 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Mutations in the DNA-dependent ATPase/helicase subunits of TFIIH, XPB and XPD, are associated with three inherited syndromes as follows: xeroderma pigmentosum with or without Cockayne syndrome and trichothiodystrophy.
|
10660593 |
2000 |
Xeroderma Pigmentosum
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
We decided to look at the transcriptional activity of TFIIH from cell lines of XP individuals.
|
10064601 |
1999 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
We previously reported that p53-mediated apoptosis is attenuated in primary human fibroblasts from individuals with Xeroderma Pigmentosum (XP) that harbor mutations in the TFIIH DNA helicases XPD or XPB.
|
10467415 |
1999 |
Xeroderma Pigmentosum
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
We also observed weak constitutive fragility of the RNU1 and RNU2 loci in cells belonging to xeroderma pigmentosum complementation groups B and D (XPB and XPD) which are partially defective in the ERCC2 (XPD) and ERCC3 (XPB) helicase activities shared between the repairosome and the RNA polymerase H basal transcription factor TFIIH.
|
9557707 |
1998 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Thus, mutations in TFIIH components may, on top of a repair defect, also cause transcriptional insufficiency, which may explain part of the non-XP clinical features of TTD.
|
9012405 |
1997 |
Xeroderma Pigmentosum
|
0.100 |
AlteredExpression
|
disease |
BEFREE |
The involvement of some if not all of the TFIIH subunits in transcription and repair may explain the heterogeneity of the various and sometimes completely unrelated symptoms observed in xeroderma pigmentosum, Cockayne Syndrome and trichothiodystrophy disorders.
|
7980491 |
1994 |
Xeroderma Pigmentosum
|
0.100 |
GeneticVariation
|
disease |
BEFREE |
Amino acid sequence analysis of the tryptic digest generated from the 89-kilodalton subunit of BTF2 indicated that this polypeptide corresponded to the ERCC-3 gene product, a presumed helicase implicated in the human DNA excision repair disorders xeroderma pigmentosum and Cockayne's syndrome.
|
8465201 |
1993 |