Results 1 to 10 of about 16,026 (192)

Deaminase-independent inhibition of parvoviruses by the APOBEC3A cytidine deaminase.

PLoS Pathogens, 2009
The APOBEC3 proteins form a multigene family of cytidine deaminases with inhibitory activity against viruses and retrotransposons. In contrast to APOBEC3G (A3G), APOBEC3A (A3A) has no effect on lentiviruses but dramatically inhibits replication of the ...
Iñigo Narvaiza, Daniel C Linfesty, Benjamin N Greener, Yoshiyuki Hakata, David J Pintel, Eric Logue, Nathaniel R Landau, Matthew D Weitzman   +7 more
doaj   +4 more sources

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

Contribution of Cytidine Deaminase to Thymidylate Biosynthesis in Trypanosoma brucei: Intracellular Localization and Properties of the Enzyme

mSphere, 2019
Cytidine deaminase (CDA) is a pyrimidine salvage enzyme that catalyzes cytidine and deoxycytidine hydrolytic deamination to yield uridine and deoxyuridine.
Ana Moro-Bulnes, Víctor M. Castillo-Acosta, Maria Valente, Juana Carrero-Lérida, Guiomar Pérez-Moreno, Luis Miguel Ruiz-Pérez, Dolores González-Pacanowska   +6 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

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

Single‐Cell RNA Editing Identifies T Cell ADAR1 as a Key Regulator of Immune Exhaustion and Anti‐PD‐1 Resistance in Colorectal Cancer

Advanced Science, EarlyView.
Single‐cell RNA editing analysis identifies ADAR1 as a regulator of dysfunctional T cell states in colorectal cancer. Elevated ADAR1 activity promotes T cell exhaustion and impairs antitumor immunity partly through TGF‐β‐SMAD signaling, contributing to anti‐PD‐1 resistance and highlighting T cell ADAR1 as a potential therapeutic target and biomarker ...
Da Kang, Song‐Zuo Xie, Yong‐Zhou Luo, Xin‐Pei Deng, Xi‐Rong Tan, Ze‐Geng Chen, Ling‐Xing Zeng, Gong Chen, Pei‐Rong Ding, Zhi‐Zhong Pan, Rong‐Xin Zhang   +10 more
wiley   +1 more source

Targeting Tex10 Overcomes Oxaliplatin Resistance by Competitively Disrupting the Non‐Canonical BAF Complex in Colorectal Cancer

Advanced Science, EarlyView.
This study reveals that Tex10 drives oxaliplatin resistance in colorectal cancer by competitively binding BRD9 to disrupt the ncBAF complex, thereby suppressing AMBRA1 transcription and ULK1‐mediated autophagy. Gemcitabine is identified as a direct Tex10 inhibitor that restores autophagy and overcomes resistance.
Ping Xu, Jie Huang, Xiaojin Gao, Lin Deng, Yanheng Deng, Denglu Wang, Chunlei Yu, Yunxiang Zhang, Jingdong Li, Xiaocong Xiang   +9 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

Pharmacogenomic profiling of the efficacy of gemcitabine monotherapy in metastatic pancreatic cancer: Subgroup analysis of the GENESECT study

British Journal of Clinical Pharmacology, EarlyView.
Aim In the GENESECT study, no significant gemcitabine (GEM) metabolism‐related germline genetic polymorphisms (GPs) were identified because approximately 70% of patients received combination therapy with nab‐paclitaxel, which has metabolic pathways different from GEM.
Takashi Yokokawa, Daiki Tsuji, Masahiro Hatori, Kazuyoshi Kawakami, Masahiko Nakao, Takuya Yano, Yuichiro Arakawa, Keisuke Matsuo, Yasukata Ohashi, Masato Ozaka, Naoki Sasahira, Yasuhiko Sakata, Yuki Kogure, Shinya Tamaki, Atsushi Wada, Yusuke Taki, Wataru Suzuki, Kazuo Kobayashi, Hiroshi Ishii, Kunihiko Itoh, Masakazu Yamaguchi, Kenichi Suzuki   +21 more
wiley   +1 more source