Results 81 to 90 of about 45,603 (283)

Homeostasis of DNA Hemi‐Methylation in Arabidopsis through Methylation Maintenance, DNA Replication, and Nucleosome Positioning Mechanisms

open access: yesAdvanced Science, EarlyView.
In Arabidopsis, the homeostasis of full‐ and hemi‐methylation is mainly regulated by maintenance methylation. The maintenance methylation at hemi‐methylated dyads is highly efficient but the efficiency differs at euchromatic or heterochromatic regions. Nucleosomes impair the hemi‐ to full‐methylation transition. Lagged methylation maintenance after DNA
Hengye Chen, Chenhuan Xu
wiley   +1 more source

Single‐Droplet Dual‐Target Quantification of circRNA Biomarkers for Colorectal Cancer Screening

open access: yesAdvanced Science, EarlyView.
Circular RNAs are crucial in tumorigenesis. This study identifies circCK1γ3 and circWDR37 as dual plasma biomarkers for colorectal cancer (CRC) screening. It is developed Casµchip, a droplet microfluidic chip using Cas13a/b technology to quantify these biomarkers.
Jingsong Xu   +11 more
wiley   +1 more source

Engineer complete resistance to Cotton Leaf Curl Multan virus by the CRISPR/Cas9 system in Nicotiana benthamiana

open access: yesPhytopathology Research, 2019
Clustered, regularly interspaced short palindromic repeats/CRISPR-associated proteins (CRISPR/Cas) based genome editing technology has been developed from the adaptive immune system used by many bacteria and archaea for combating against viruses.
Kangquan Yin   +5 more
doaj   +1 more source

Changes in Length and Positive Charge of Palindromic Sequence RWQWRWQWR Enhance Cytotoxic Activity against Breast Cancer Cell Lines. [PDF]

open access: yesACS Omega, 2023
Barragán-Cárdenas AC   +7 more
europepmc   +1 more source

Contribution of Prostaglandin E2‐Induced Neuronal Excitation to Drug Resistance in Glioblastoma Countered by a Novel Blood–Brain Barrier Crossing Celecoxib Derivative

open access: yesAdvanced Science, EarlyView.
Glioblastoma (GBM) is an aggressive brain cancer that often recurs and resists chemotherapy. This study found that a chemical called PGE2 causes surrounding brain cells (neurons) to become over‐excited, which makes GBM cells resistant to treatment. Researchers developed a new drug, “Compound 11,” which can cross into the brain and effectively block ...
Chih‐Jie Shen   +14 more
wiley   +1 more source

CRISPR-Cas9 System as a Versatile Tool for Genome Engineering in Human Cells

open access: yesMolecular Therapy: Nucleic Acids, 2016
Targeted nucleases are influential instruments for intervening in genome revision with great accuracy. RNA-guided Cas9 nucleases produced from clustered regularly interspaced short palindromic repeats (CRISPR)-Cas systems have noticeably altered the ...
Xuelian Wang   +4 more
doaj   +1 more source

Reconstructing words from a fixed palindromic length sequence [PDF]

open access: yes, 2008
To every word ω is associated a sequence Gω built by computing at each position i the length of its longest palindromic suffix. This sequence is then used to compute the palindromic defect of a finite word Ω defined by D(Ω) = |Ω|+1−|Pal(Ω)| where Pal(Ω) is the set of its palindromic factors. In this paper we exhibit some properties of this sequence and
A. Blondin Masse   +4 more
openaire   +4 more sources

Hsa_circ_0026782 Acts as a “Molecular Break” of CREB1‐Mediated Transcription by Promoting Its Phosphorylation at Ser142 That Prevents Keloid Progression

open access: yesAdvanced Science, EarlyView.
Model for the role of hsa_circ_0026782/p‐CREB1 (Ser142) played in keloid. Hsa_circ_0026782 is derived from back‐splicing of ITGA7 exon 4. When hsa_circ_0026782 binds to CREB1, the exposure of the bZIP domain and dimerization of CREB1 are promoted (upper left).
Xin‐Cao Zhong   +10 more
wiley   +1 more source

Dimerisation of HIV-2 genomic RNA is linked to efficient RNA packaging, normal particle maturation and viral infectivity

open access: yesRetrovirology, 2007
Background Retroviruses selectively encapsidate two copies of their genomic RNA, the Gag protein binding a specific RNA motif in the 5' UTR of the genome. In human immunodeficiency virus type 2 (HIV-2), the principal packaging signal (Psi) is upstream of
Crowther R Anthony   +3 more
doaj   +1 more source

Rationally Designed TadA‐Derived Cytosine Editors Enable Context‐Independent Zebrafish Genome Editing

open access: yesAdvanced Science, EarlyView.
A next‐generation cytosine base editor (zTadCBE) and other variants are developed by combining the high‐efficiency (TadCBEa) and low‐indel (TadCBEMax) architectures, followed by the introduction of zebrafish‐optimized mutations (V82S, Q154R) in the TadA domain.
Wei Qin   +7 more
wiley   +1 more source

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