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1 crucial role in maintaining newly replicated telomeric 3' overhangs and facilitating the switch from
2 c approach provides a detailed snapshot of a telomeric 3' quadruplex-duplex junction: a junction that
5 e shelterin protein TIN2 is required for the telomeric accumulation of TPP1/POT1 heterodimers and for
7 multinucleated cells, nuclear volume, and 3D telomeric aggregates when compared with the LMP1-suppres
8 d yeast strains, each containing a different telomeric amplicon (Tamp), ranging in size from 0.4 to 1
9 Our genome-wide Tamp screen confirmed that telomeric amplifications identified in laboratory-evolve
10 ealed that the fitness landscape explored by telomeric amplifications is much broader than that explo
11 enome-wide screen for the fitness effects of telomeric amplifications to address the relationship bet
13 ounds were investigated employing both human telomeric and oncogene promoter G-quadruplexes with diff
15 mosomal interactions between the cell lines; telomeric and sub-telomeric regions in the MCF-10A cells
17 (TPP1), mutations of which lead to decreased telomeric association of telomerase, similar to the phos
19 was also defective in the maintenance of the telomeric C strand, causing extended 3' overhangs and st
22 y that can explain the incremental nature of telomeric C-strand synthesis following telomerase action
23 lterin subunits TRF1, TRF2, and TIN2 mediate telomeric chromatin compaction, which was proposed to mi
24 investigated the structural organization of telomeric chromatin in human cells using super-resolutio
25 strate that shelterin-mediated compaction of telomeric chromatin provides robust protection of chromo
28 In vivo, in the presence of functional BLM, telomeric circle formation and telomere sister chromatid
32 and-break repair nuclease MRE11A, leading to telomeric damage, juxtacentromeric heterochromatin unrav
34 ere dysfunction induces the transcription of telomeric DDRNAs (tDDRNAs) and their longer precursors f
37 telomerase activity results in shortening of telomeric DNA and eventually a specific G2/M cell-cycle
41 Phe, AtPOT1bOB1 gained the capacity to bind telomeric DNA and to stimulate telomerase repeat additio
43 b paralogs are atypical: they do not exhibit telomeric DNA binding, and they have opposing roles in r
53 he most abundant sequence motif in irregular telomeric DNA from Saccharomyces cerevisiae (yeast), is
54 e rational design of ligands targeting human telomeric DNA G-quadruplexes is a complex problem due to
55 ridostatin) induce conformational changes of telomeric DNA G-quadruplexes to an antiparallel structur
58 stone gamma-H2AX foci and a striking loss of telomeric DNA in mus81 send1 further support this interp
59 ort that SSB1 binds specifically to G-strand telomeric DNA in vitro and associates with telomeres in
60 Interestingly, we estimated higher levels of telomeric DNA methylation in studies that produced C-ric
62 nteractions of the gold complex with various telomeric DNA models have been analyzed by a combined ES
64 pies its internal RNA template to synthesize telomeric DNA repeats at chromosome ends in balance with
66 indicate that subtelomeric CTCF facilitates telomeric DNA replication by promoting TERRA transcripti
70 nfold G-quadruplex (G4) structures formed by telomeric DNA sequences, a function important for telome
71 ral motif of G-quadruplexes formed by, e.g., telomeric DNA sequences, but are also interesting target
74 d POT1 has the strongest binding affinity to telomeric DNA substrates comprised of double-stranded DN
75 lizes the association between telomerase and telomeric DNA substrates, providing a molecular explanat
78 mosomes terminate in stretches of repetitive telomeric DNA that act as buffers to avoid loss of essen
79 The human shelterin proteins associate with telomeric DNA to confer telomere protection and length r
81 eficient TRF2 mutant, named Top-less, alters telomeric DNA topology, decreases the number of terminal
82 esides their ability to bind specifically to telomeric DNA using their N-terminally positioned myb-li
83 s chromosome ends, recognizing single-strand telomeric DNA via two oligonucleotide/oligosaccharide bi
85 r resolution of stalled replication forks in telomeric DNA while BLM facilitates their resection and
87 Irradiation of G-quadruplex forming human telomeric DNA with ultraviolet B (UVB) light results in
88 With the exception of the single-stranded telomeric DNA, all genomic G-rich sequences will always
89 interactions between shelterin subunits and telomeric DNA, but not by DNA methylation, histone deace
90 irect connection between oxidative damage to telomeric DNA, comprising <1% of the genome, and telomer
91 lude that a distinctive topological state of telomeric DNA, controlled by the TRF2-dependent DNA wrap
92 POT1 OB-fold fail to bind to single-stranded telomeric DNA, eliciting a DNA damage response at telome
93 embly of proteins that binds to and protects telomeric DNA, which composes the ends of all linear chr
94 vity of SLX1-SLX4 is negatively regulated by telomeric DNA-binding proteins TRF1 and TRF2 and is supp
96 Here we found that SmedOB1 is required for telomeric DNA-protein complex formation and it associate
107 intenance leads to gradual shortening of the telomeric dsDNA, similar to that observed in cells lacki
109 -forming scaffolds linked at the 3' end to a telomeric duplex sequence and annealed to a complementar
112 phate (IP) pathway controls transcription of telomeric ESs and VSG antigenic switching in Trypanosoma
113 variation by switching transcription between telomeric ESs or by recombination of the VSG gene expres
120 ole chromosomes containing massive arrays of telomeric fusions indicative of multiple breakage-fusion
121 whereas Tg retains limited accessibility, of telomeric G-quadruplex DNA to complementary single stran
122 ies show that Delta1a can discriminate human telomeric G-quadruplex from other telomeric G-quadruplex
123 induce conformational switching of the human telomeric G-quadruplexes to an antiparallel structure an
127 ates DNA polymerase delta progression across telomeric G-rich repeats, only WRN promotes sequential s
128 e anticancer alkaloid berberine to the human telomeric G4 (d[AG3(T2AG3)3]), computing also the bindin
129 date the mechanism through which RPA unfolds telomeric G4s, we studied its interaction with oligonucl
130 -rich region that is also located within the telomeric gene desert but has no impact on Hoxd8 transcr
134 s on different GQ constructs including human telomeric GQ (with different overhangs and polarities) a
135 ic studies on Bloom (BLM) helicase and human telomeric GQ interactions using single-molecule Forster
136 e telomere lengths linked to distinguishable telomeric haplotypes; this single-telomere genotyping me
137 he presence of K(+) ions and hemin, into the telomeric hemin/G-quadruplex structure, exhibiting horse
139 oth arising out of nucleolytic processing of telomeric homologous recombination intermediates, are su
140 tion, can enantioselectively stabilize human telomeric hybrid G-quadruplex and strongly inhibit telom
143 vels in ICF syndrome lead to accumulation of telomeric hybrids that, in turn, can result in telomeric
149 as significant interaction between HLA-B and telomeric KIR B haplotype (containing the activating gen
150 hat the ALT pathway preferentially occurs at telomeric lagging strands leading to heterogeneous telom
151 lls exhibited preferential elongation of the telomeric lagging strands, whereas telomerase positive c
152 The RCT-TIN2-L247E fusion showed improved telomeric localization and was fully functional in terms
153 ization abrogates nuclear foci formation and telomeric localization of not only SLX4 but also of its
161 s at telomeres, leading to the engagement of telomeric MiDAS (spontaneous mitotic telomere synthesis)
163 N complex suppresses telomere clustering and telomeric MiDAS, whereas the SMC5/6 complex promotes the
164 this model, initial damage to DNA (genomic, telomeric, mitochondrial and epigenetic changes) results
165 rrence of an unusual eukaryote (TTTTTTAGGG)n telomeric motif in C. elegans represents a switch in mot
167 oss compromises cell-cycle regulation of the telomeric noncoding RNA TERRA and leads to persistent as
168 ne-rich oligonucleotide homologous to the 3'-telomeric overhang of telomeres, elicits potent DNA-dama
170 rved that ALT cells possess excessively long telomeric overhangs derived from telomere elongation pro
172 RA increases telomerase activity and induces telomeric pathologies, including formation of telomere-i
174 Negative regulation by VEX1 also affected telomeric pol-I-transcribed reporter constructs, but onl
175 ture of the interacting portion of the human telomeric POT1-TPP1 complex and suggest how several of t
181 while the stoichiometry was more complex for telomeric quadruplex DNA and a double-stranded DNA contr
182 EIL1, NEIL2 and NEIL3 remove hydantoins from telomeric quadruplexes formed by five TTAGGG repeats muc
183 the thermostability and alter the folding of telomeric quadruplexes in a location-dependent manner.
187 nd strongly suggests a physiological role in telomeric recombination processes, including T-loop dyna
188 a major malting QTL, QTL2, located near the telomeric region that accounts, respectively, for 28.9%
190 atin is associated with the rDNA locus while telomeric regions are assembled into a weak heterochroma
192 ns between the cell lines; telomeric and sub-telomeric regions in the MCF-10A cells display more freq
194 ed efficiently compared to DNA damage in non-telomeric regions of the same length in heterochromatin.
198 methylation, including centromeric repeats, telomeric regions, and the mating-type locus, consistent
204 and it can be regarded as an alternative to telomeric repeat amplification protocol assay, having th
206 c.752-2A>C) and another shelterin component, telomeric repeat binding factor 2, interacting protein (
207 eatment and hybridization with a Cy3-labeled telomeric repeat complementing (CCCTAA)3 peptide nucleic
209 e, including an increase in extrachromosomal telomeric repeat DNAs, putative recombinational byproduc
210 TRF1 and TRF2, which preferentially bind the telomeric repeat found at chromosome ends, effectively b
212 Consistent with their roles at telomeres, telomeric repeat sequence DNA also stimulated binding an
214 ics as native cytosine residues in the human telomeric repeat sequence, where it causes little or no
215 and eight additional proteins, including the telomeric repeat single-stranded DNA-binding protein Teb
216 t eukaryotes, telomere maintenance relies on telomeric repeat synthesis by a reverse transcriptase na
217 on results in replication stalling in duplex telomeric repeat tracts and the subsequent formation of
218 Repressor activator protein 1 (RAP1) and telomeric repeat-binding factor 2 (TRF2) are two subunit
219 ditional deletion of the shelterin component telomeric repeat-binding factor 2, cells survived but re
220 d reduced expression and telomere binding of telomeric repeat-binding factor-2 (TRF2), associated wit
227 linking hinge, which bound to 12 bp in human telomeric repeats (5'-(TTAGGG)n-3') and could be used to
228 n the Leishmania genome and is only found in telomeric repeats (99%) and in regions where transcripti
229 l senescence and ageing, due to attrition of telomeric repeats and insufficient retention of the telo
231 been reported for Q-quadruplexes formed from telomeric repeats depending on DNA length and ion soluti
232 ide probe confirmed its effective binding to telomeric repeats in the complex chromatinized genome.
233 lication efficiency of guanine-rich (G-rich) telomeric repeats is decreased significantly in cells la
235 this terminal sequence loss by synthesizing telomeric repeats through repeated cycles of reverse tra
236 The telomerase is responsible for adding telomeric repeats to chromosomal ends and consists of th
240 istinct activities of telomerase, which adds telomeric repeats to solve the end replication problem,
241 Telomerase synthesizes chromosome-capping telomeric repeats using an active site in telomerase rev
242 /PK) which includes the template, for adding telomeric repeats, template boundary element (TBE), and
244 of four hairpin moieties, targeting 24 bp in telomeric repeats, the longest reported binding site for
248 ALT cells, BRCA1 and BLM help to resolve the telomeric replication stress by stimulating DNA end rese
249 g the binding interactions between the human telomeric RNA (TERRA) G-quadruplex (GQ) and its ligands,
250 P1-regulated appropriate levels of TERRA and telomeric RNA:DNA hybrid are fundamental to subtelomere/
251 Depletion of TbRAP1 also results in more telomeric RNA:DNA hybrids and more double strand breaks
252 he RNA strand of the RNA:DNA hybrid, brought telomeric RNA:DNA hybrids, telomeric/subtelomeric DSBs a
253 RNAs, including ribosomal, spliceosomal and telomeric RNAs, cisplatin binding sites in most RNA mole
255 in the GGG triplet found in the G-rich human telomeric sequence (TTAGGG), making telomeres highly sus
256 uplex formed by the 22-mer four-repeat human telomeric sequence AG3(TTAG3)3 and (ii) the intermolecul
257 nvolved in mismatch repair (MMR), suppresses telomeric sequence insertion (TSI) at intra-chromosomal
258 mportantly, WRN's specificity for the G-rich telomeric sequence within this precise structural contex
259 erin, fission yeast shelterin is composed of telomeric sequence-specific double- and single-stranded
270 og (ACD) (encoding TPP1), a component of the telomeric shelterin complex, in one family affected by H
272 gly, we demonstrate that deletion of Ccq1, a telomeric shelterin component, rescued cell death after
273 rapidly induces DNA damage at telomeres and telomeric shortening upon long-term chemical exposure in
275 ion program is dependent on the disruptor of telomeric silencing 1-like histone 3 lysine 79 (H3K79) m
277 ic variation and demonstrated a link between telomeric silencing and subtelomere/telomere integrity t
279 ssor/activator protein 1 (TbRAP1), and their telomeric silencing function is altered by TbPIP5K knock
282 ed Ku-binding protein that is a component of telomeric silent chromatin - is required for Ku-mediated
285 transcribed VSG expression site is the only telomeric site that is early replicating - a differentia
289 A hybrid, brought telomeric RNA:DNA hybrids, telomeric/subtelomeric DSBs and VSG switching frequency
291 uncover a transition point in which 34 bp of telomeric (TG1-3)n repeat sequence renders a DNA end ins
292 Ts1Rhr mice harbor a duplication of the telomeric third of the Ts65Dn-duplicated sequence and de
293 imputed intronic SNP rs1830298 in ALS2CR12 (telomeric to CASP8), with per allele odds ratio and 95%
294 nd near HEY2 and NCOA7), 8q24.21 (rs4733613, telomeric to MYC), 15q15.1 (rs937213, in EIF2AK4, near B
297 ealed previously unknown heterochromatic and telomeric transition sequences, and we assembled low-com
298 epeat tracts and the subsequent formation of telomeric ultrafine anaphase bridges (UFBs), ultimately
299 polymerase-I (pol-I) to transcribe just one telomeric variant surface glycoprotein (VSG) gene at a t
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