Results 31 to 40 of about 18,368 (174)

Genotoxic stress and viral infection induce transient expression of APOBEC3A and pro-inflammatory genes through two distinct pathways

Nature Communications, 2021
The cytidine deaminase APOBEC3A is a main source of mutagenesis in many types of cancer. Here the authors reveal that transient up-regulation of APOBEC3A and other pro-inflammatory genes can occur due to viral infection and genotoxic stress via multiple ...
Sunwoo Oh, Elodie Bournique, Danae Bowen, Pégah Jalili, Ambrocio Sanchez, Ian Ward, Alexandra Dananberg, Lavanya Manjunath, Genevieve P. Tran, Bert L. Semler, John Maciejowski, Marcus Seldin, Rémi Buisson   +12 more
doaj   +1 more source

Increasing fidelity and efficiency by modifying cytidine base-editing systems in rice

Crop Journal, 2020
The efficiency of plant cytidine base-editing systems is limited, and unwanted mutations frequently occur in transgenic plants. We increased the cytidine editing frequency and fidelity of the plant base editor 3 (BE3) and targeted activation-induced ...
Ruiying Qin, Shengxiang Liao, Juan Li, Hao Li, Xiaoshuang Liu, Jianbo Yang, Pengcheng Wei   +6 more
doaj   +1 more source

Aberrant Activation-Induced Cytidine Deaminase Gene Expression Links BCR/ABL1-Negative Classical Myeloproliferative Neoplasms

Haseki Tıp Bülteni, 2022
Aim:Activation-induced cytidine deaminase (AID) has been associated with tumor initiation and development because of its ability to generate DNA damage and somatic mutations that cause genomic instability. This study aimed to investigate the relationship
Hasan Dermenci, Aynur Daglar Aday, Aysegul Basak Akadam Teker, Veysel Sabri Hancer, Metin Yusuf Gelmez, Meliha Nalcaci, Akif Selim Yavuz   +6 more
doaj   +1 more source

Serum adenosine deaminase and cytidine deaminase activities in patients with systemic lupus erythematosus

, 2002
We evaluated serum total adenosine deaminase, its isoenzymes adenosine deaminase-1 and adenosine deaminase-2, and cytidine deaminase activities in 24 patients with active systemic lupus erythematosus, and in 26 healthy control subjects, and found the ...
TAYSİ, S, POLAT, MUHAMMET FEVZİ, SARİ, RA, BAKAN, Ebubekir   +3 more
core   +1 more source

Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq

Advanced Science, EarlyView.
Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su, Ting‐Chun Chou, Maria Teresa López‐Cascales, Junfeng Huang, Tsai‐Ying Chen, Sjoukje van Wieren, Chan Li, Cecile Beerens, Li You, Jelle Storteboom, Miao‐Ping Chien   +10 more
wiley   +1 more source

FUCA2 Sustains AKT Signaling and Suppresses Senescence by Antagonizing FUT3‐Mediated ErbB3 Fucosylation in Lung Adenocarcinoma

Advanced Science, EarlyView.
ABSTRACT While targeted therapies have improved outcomes in lung adenocarcinoma (LUAD), many patients still lack targetable mutations. Here, we identified alpha‐L‐fucosidase 2 (FUCA2) as a crucial driver of LUAD by preventing cellular senescence. Mechanistically, through the restriction of fucosyltransferase 3 (FUT3)‐mediated α‐1,3‐fucosylation of ...
Lu Chen, Jintao Guo, Fei Li, Mingjie Gao, Runyang Li, Zhaozhang Huang, Yaolin Zheng, Chunyi Gao, Jihuan Hou, Qiang Yu, Bowen Zheng, Xuemei Chen, Wenqing Zhang, Xiaoting Hong, Yali Zheng, Daxuan Wang, Qiyuan Li, Tianhui Hu, Yan‐yan Zhan   +18 more
wiley   +1 more source

Effects of point mutations in the cytidine deaminase domains of APOBEC3B on replication and hypermutation of hepatitis B virus in vitro

, 2007
APOBEC3 cytidine deaminases hypermutate hepatitis B virus (HBV) and inhibit its replication in vitro. Whether this inhibition is due to the generation of hypermutations or to an alternative mechanism is controversial.
Greeve, Jobst, Bonvin, Marianne
core   +1 more source

The RNA‐Binding Protein PARN Remodeled 3′ UTR Structure Defines Poly(A)‐Loading Sites to Mediate Immunoglobulin Homeostasis

Advanced Science, EarlyView.
ABSTRACT Class Switch Recombination (CSR) is essential for generating high‐affinity antibody isotypes from IgM during adaptive humoral responses. Despite well‐established roles for various transcription factors, whether CSR is subject to dedicated post‐transcriptional control represents a significant gap in knowledge.
Siyuan Sun, Chen Yang, Xiaoyu Wang, Naijing Hu, Shengyao Zhang, Xinchun Li, Yu Chen, Jianan Zhai, Xiangfeng Tang, Wei Lu, Chenxu Lu, Changchang Cao, Weiru Yu, Wenhao Wu, Xiaonan Nie, Fengchao Wang, Bing Fang, Fazheng Ren, Yixuan Li, Juan Chen   +19 more
wiley   +1 more source

Crystal structure of the catalytic domain of HIV-1 restriction factor APOBEC3G in complex with ssDNA

Nature Communications, 2018
APOBEC3G (A3G) is a single-stranded DNA (ssDNA) cytidine deaminase that restricts HIV-1. Here the authors provide molecular insights into A3G substrate recognition by determining the 1.86 Å resolution crystal structure of its catalytic domain bound to ...
Atanu Maiti, Wazo Myint, Tapan Kanai, Krista Delviks-Frankenberry, Christina Sierra Rodriguez, Vinay K. Pathak, Celia A. Schiffer, Hiroshi Matsuo   +7 more
doaj   +1 more source

Synergistic HMGN1 and VP64 Fusions Potentiate High‐Precision and PAM‐Flexible Base Editing

Advanced Science, EarlyView.
A novel CDA1Δ‐SpRY architecture fused with HMGN1 and VP64 yields a nearly PAM‐less base editing platform. By focusing cytosine conversion predominantly at position −18, this synergistic complex ensures highly precise targeting. Demonstrating enhanced efficiency across diverse models, including yeast and rice, the platform offers a robust solution for ...
Xi Luo, Yuyao Qu, Zhengyan Ye, Zheng Li, Yuanyan Zhang, Longjiong Luo, Shaokang Li, Wei Zhao, Ming Wang, Ralph Bock, Jianmin Wan, Junjie Tan   +11 more
wiley   +1 more source