Results 31 to 40 of about 33,232 (163)

RAG-1 Mutations Associated with B-Cell-Negative SCID Dissociate the Nicking and Transesterification Steps of V(D)J Recombination [PDF]

, 2001
Some patients with B-cell-negative severe combined immune deficiency (SCID) carry mutations in RAG-1 or RAG-2 that impair V(D)J recombination. Two recessive RAG-1 mutations responsible for B-cell-negative SCID, R621H and E719K, impair V(D)J recombination
Chang, Fu-Chung, Desiderio, Stephen, Li, Wenhui   +2 more
core   +2 more sources

DNA Replication Errors Drive Genome‐Wide Small Inverted Triplication Dynamics

Advanced Science, EarlyView.
This study provides insight into the dynamic equilibrium mechanism of a novel structural variant, small inverted triplication (SIT), which is generated by misalignment of the 3’ flap generated under DNA replication stress with palindromic sequence. Alternatively, the end sequence may fold back on itself to form an inverted fragment.
Yi Lei, Yu Zhou, Haitao Sun, Hang Yuan, Xinyu Pei, Jessica D. Hess, Yao Yan, Zunsong Hu, Mian Zhou, Zhaohui Gu, Li Zheng, Xiwei Wu, Binghui Shen   +12 more
wiley   +1 more source

Characterization of endonuclease activities in Moloney murine leukemia virus and its replication-defective mutants [PDF]

, 1987
To study Moloney murine leukemia virus (M-MulV) proteins associated with the integration of proviral DNA into the host chromosome, we isolated endonuclease activities from purified virion preparations of the wild type and two of its replication mutants ...
Baltimore, David, Panet, Amos
core  

EEPD1 Inhibition Unleashes Antitumor Immunity in Colorectal Cancer by Activating the cGAS‐STING Pathway

Advanced Science, EarlyView.
In colorectal cancer, high expression of the DNA repair protein EEPD1 correlates with immune exclusion and poor prognosis. This study demonstrates that EEPD1 depletion induces genomic instability, leading to cytosolic DNA accumulation and subsequent activation of the cGAS‐STING‐type I interferon pathway. This cascade remodels the tumor microenvironment
Liyun Huo, Chong Wu, Xiaobo Li, Caina Ma, Jiamin Huang, Zishuo Chen, Weiling He, Tianyu Tao, Weijing Zhang   +8 more
wiley   +1 more source

Engineering CRISPR guide RNA riboswitches for in vivo applications [PDF]

, 2019
CRISPR-based genome editing provides a simple and scalable toolbox for a variety of therapeutic and biotechnology applications. Whilst the fundamental properties of CRISPR proved easily transferable from the native prokaryotic hosts to eukaryotic and ...
Galizi, Roberto, Jaramillo, Alfonso
core   +1 more source

Beyond seek and destroy: How to generate allelic series using genome editing tools [PDF]

, 2020
Genome editing tools have greatly facilitated the functional analysis of genes of interest by targeted mutagenesis. Many usable genome editing tools, including different site-specific nucleases and editor databases that allow single-nucleotide ...
Bes, Martine, Chaine, Christian, Durandet, Franz, Guiderdoni, Emmanuel, Herbert, Leo, Meunier, Anne Cecile, Michel, Rémy, Portefaix, Murielle, Périn, Christophe, This, Patrice, Vernet, Aurore   +10 more
core   +3 more sources

Programmable RNA N6,2´‐O‐Dimethyladenosine Editing

Advanced Science, EarlyView.
ABSTRACT N6,2’‐O‐dimethyladenosine (m6Am) is a prevalent RNA modification located at the first transcribed nucleotide adjacent to the 5′ cap of mRNAs, where it has been implicated in gene regulation. However, the lack of methods for precise, transcript‐specific manipulation of m6Am has limited its functional dissection.
Yang Li, Xiangmin Tan, Yaran Liu, Yongquan He, Bo Yuan, Ping Wang, Guangzhi Ma, Mengzhe Guo, Jian Zhou, Qiang Sun   +9 more
wiley   +1 more source

The Swr1 chromatin-remodeling complex prevents genome instability induced by replication fork progression defects. [PDF]

, 2018
Genome instability is associated with tumorigenesis. Here, we identify a role for the histone Htz1, which is deposited by the Swr1 chromatin-remodeling complex (SWR-C), in preventing genome instability in the absence of the replication fork/replication ...
Branzei, Dana, Kolodner, Richard D, Li, Bin-Zhong, Putnam, Christopher D, Srivatsan, Anjana, Szakal, Barnabas   +5 more
core   +2 more sources

Directed Evolution Improves the Catalytic Efficiency of APEX2‐Mediated Proximity‐Dependent RNA Labeling

Advanced Science, EarlyView.
ABSTRACT Engineered ascorbate peroxidase APEX2 has been widely used for spatially restricted profiling of subcellular biomolecules, but its catalytic efficiency toward newly developed probes such as biotin‐aniline (Btn‐An) remains suboptimal. To overcome this limitation, we performed yeast surface display‐based directed evolution to enhance APEX2 ...
Gang Wang, Yi Li, Peiyuan Meng, Peng Zou
wiley   +1 more source

TopCas: Topology‐Gated Cas12a via DNA‐RNA Chimeric Circular crRNA for Amplification‐Free Nucleic Acid Detection and Conditional Gene Editing

Advanced Science, EarlyView.
The TopCas platform utilizes an engineered DNA‐RNA chimeric circular crRNA to establish topology‐gated control over CRISPR‐Cas12a activity, enabling target‐triggered self‐catalytic amplification (preamplification‐free). This system seamlessly integrates highly sensitive molecular diagnostics with conditionally controlled gene editing, demonstrating ...
Shun Zhang, Wen Sun, Ting Xiao, Yali Wang, Xianlan Wu, Huiyou Chen, Ming Chen, Jun Zhang   +7 more
wiley   +1 more source