Results 41 to 50 of about 32,953 (312)

Elevated levels of G-quadruplex formation in human stomach and liver cancer tissues.

PLoS ONE, 2014
Four-stranded G-quadruplex DNA secondary structures have recently been visualized in the nuclei of human cultured cells. Here, we show that BG4, a G-quadruplex-specific antibody, can be used to stain DNA G-quadruplex structures in patient-derived tissues
Giulia Biffi, David Tannahill, Jodi Miller, William J Howat, Shankar Balasubramanian   +4 more
doaj   +1 more source

Bisquinolinium compounds induce quadruplex-specific transcriptome changes in HeLa S3 cell lines

BMC Research Notes, 2012
Background Guanosine rich sequences capable of forming G-quadruplex (G4) motifs are enriched near the gene transcription start site (TSS) in the human genome.
Halder Rashi, Riou Jean-Francois, Teulade-Fichou Marie-Paule, Frickey Tancred, Hartig Jörg S   +4 more
doaj   +1 more source

A role for non-B DNA forming sequences in mediating microlesions causing human inherited disease [PDF]

, 2015
Missense/nonsense mutations and micro-deletions/micro-insertions of
Aguilera, Bacolla, Bacolla, Bacolla, Bacolla, Bacolla, Ball, Belotserkovskii, Bharti, Biffi, Bochman, Boyer, Brooks, Bzymek, Cebrián, Chen, Chen, Chuzhanova, Clark, Cooper, Cooper, Cooper, De, Ding, Dong, Du, Fleming, Greenblatt, Guo, Gusev, Iyer, Jain, Jain, Javadekar, Jeitany, Kaushik Tiwari, Kondrashov, Kouzine, Kregten, Kunkel, Kunkel, Kunkel, Lam, Lee, Levinson, León-Ortiz, Lopes, Lovett, Lu, Majumdar, Margolin, Morikawa, Mort, Mukherjee, Mukherjee, Murat, Nambiar, Patel, Raghavan, Reeves, Rosche, Rouleau, Sanders, Schofield, Sen, Sharma, Sinden, Sinden, Spurlock, Stenson, Stenson, Tappino, Vasquez, Verdin, Wang, Wells, Wickramasinghe, Williams, Wu, Wu, Wu, Wu, Yang, You, Zhao, Zhao, Zhou   +86 more
core   +1 more source

NMR Studies of G-Quadruplex Structures and G-Quadruplex-Interactive Compounds [PDF]

, 2019
G-quadruplexes are noncanonical, four-stranded nucleic acid secondary structures formed in sequences containing consecutive runs of guanines. These G-quadruplex structures have been found to form in nucleic acid regions of biological significance, including human telomeres, gene promoters, and untranslated regions of mRNA.
Clement, Lin, Jonathan, Dickerhoff, Danzhou, Yang   +2 more
openaire   +2 more sources

Development of Fluorescent Aptasensors Based on G-Quadruplex Quenching Ability for Ochratoxin A and Potassium Ions Detection

Biosensors, 2022
G-quadruplexes have received significant attention in aptasensing due to their structural polymorphisms and unique binding properties. In this work, we exploited the fluorescence-quenching properties of G-quadruplex to develop a simple, fast, and ...
Cheng Yang, Xiaolin Chu, Li Zeng, Amina Rhouati, Fathimath Abbas, Shengnan Cui, Daiqin Lin   +6 more
doaj   +1 more source

High-Resolution Three-Dimensional NMR Structure Of The KRAS Proto-Oncogene Promoter Reveals Key Features Of A G-Quadruplex Involved In Transcriptional Regulation [PDF]

, 2017
Non-canonical base pairing within guanine-rich DNA and RNA sequences can produce G-quartets, whose stacking leads to the formation of a G-quadruplex (G4).
Ivashchenko, S., Kerkour, A., Marquevielle, J., Mergny, J.-L., Salgado, G. F., Yatsunyk, Liliya A.   +5 more
core   +2 more sources

G-quadruplex–R-loop interactions and the mechanism of anticancer G-quadruplex binders [PDF]

Nucleic Acids Research, 2020
AbstractGenomic DNA and cellular RNAs can form a variety of non-B secondary structures, including G-quadruplex (G4) and R-loops. G4s are constituted by stacked guanine tetrads held together by Hoogsteen hydrogen bonds and can form at key regulatory sites of eukaryote genomes and transcripts, including gene promoters, untranslated exon regions and ...
Giulia Miglietta, Marco Russo, Giovanni Capranico   +2 more
openaire   +3 more sources

Conserved presence of G-quadruplex forming sequences in the Long Terminal Repeat Promoter of Lentiviruses [PDF]

, 2017
G-quadruplexes (G4s) are secondary structures of nucleic acids that epigenetically regulate cellular processes. In the human immunodeficiency lentivirus 1 (HIV-1), dynamic G4s are located in the unique viral LTR promoter.
A Ayouba, A Henderson, A Rambaut, AK Todd, AM Fleming, AN Lane, AR Haeusler, B Berkhout, B Zhou, BF Keele, D Piekna-Przybylska, D Qu, D Rhodes, D Sen, DJ Patel, E Tosoni, EA Raiber, F Barre-Sinoussi, F Benachenhou, F Bibollet-Ruche, F Heuverswyn Van, F Turrini, G Biffi, GE Crooks, IT Holder, J Felsenstein, J Norseen, J Qiu, J Song, J Yamaguchi, JE Clements, JF Fisette, JP Taylor, K Tamura, K Tluckova, KA Jones, LA Pereira, M Fry, M Metifiot, M Sala, M Scalabrin, MA Larkin, N Maizels, ND Perkins, NH Campbell, P Fratta, P Ivanov, P Murat, P Sket, R Perrone, R Perrone, R Perrone, R Perrone, RC Edgar, RC Gallo, RJ Gifford, S Amrane, S Artusi, S Artusi, S Balasubramanian, S Bhatia, S Broos, S Burge, S Pohlmann, SE Tong-Starksen, SR Wang, SR Wang, Y Wang   +67 more
core   +1 more source

Stability of telomeric G-quadruplexes [PDF]

Nucleic Acids Research, 2010
In most eukaryotes, telomeric DNA consists of repeats of a short motif that includes consecutive guanines and may hence fold into G-quadruplexes. Budding yeasts have telomeres composed of longer repeats and show variation in the degree of repeat homogeneity. Although telomeric sequences from several organisms have been shown to fold into G-quadruplexes
Tran, Phong Lan Thao, Mergny, Jean-Louis, Alberti, Patrizia   +2 more
openaire   +3 more sources

Novel splicing in IGFN1 intron 15 and role of stable G-quadruplex in the regulation of splicing in renal cell carcinoma. [PDF]

PLoS ONE, 2018
The IGFN1 (Immunoglobulin-Like And Fibronectin Type III Domain Containing 1) gene has a role in skeletal muscle function and is also involved in metastatic breast cancer, and the isoforms with three N-terminal globular domains are sufficient for its ...
Shiv Prakash Verma, Parimal Das
doaj   +1 more source