Results 111 to 120 of about 53,303 (248)

Pramel15 facilitates zygotic nuclear DNMT1 degradation and DNA demethylation

Nature Communications
In mammals, global passive demethylation contributes to epigenetic reprogramming during early embryonic development. At this stage, the majority of DNA-methyltransferase 1 (DNMT1) protein is excluded from nucleus, which is considered the primary cause ...
Jiajun Tan, Yingfeng Li, Xiang Li, Xiaoxiao Zhu, Liping Liu, Hua Huang, Jiahua Wei, Hailing Wang, Yong Tian, Zhigao Wang, Zhuqiang Zhang, Bing Zhu   +11 more
doaj   +1 more source

Purification and characterization of DNA ligase III from bovine testes. Homology with DNA ligase II and vaccinia DNA ligase.

The Journal of biological chemistry, 1995
Mammalian cell nuclei contain three biochemically distinct DNA ligases. In the present study we have found high levels of DNA ligase I and DNA ligase III activity in bovine testes and have purified DNA ligase III to near homogeneity. The high level of DNA ligase III suggests a role for this enzyme in meiotic recombination.
I, Husain, A E, Tomkinson, W A, Burkhart, M B, Moyer, W, Ramos, Z B, Mackey, J M, Besterman, J, Chen   +7 more
openaire   +1 more source

p300 Degradation by the p53‐SIAH1 Axis Relieves TBK1 Acetylation to Enhance Innate Antiviral Immunity

Advanced Science, EarlyView.
This study identifies p300 as the acetyltransferase that acetylates TBK1 and inhibits its phosphorylation. Activation of the p53‐SIAH1 axis by immune response downregulates p300 expression to sustain innate antiviral immunity. Conditional p300 knockout in alveolar epithelial cells in vivo promotes antiviral responses and suppresses virus replication ...
Huidi Yu, Zhihao Zhan, Xiaoxiang Pan, Xinyue Zhang, Penggang Liu, Jing Sun, Xiulong Xu   +6 more
wiley   +1 more source

ZNF33B Promotes Japanese Encephalitis Virus Infection by Regulating the Stability of M6A‐Modified Trim25 to Control the Autophagy Process

Advanced Science, EarlyView.
Upon JEV infection, ZNF33B recruits METTL14 to stabilize the METTL3‐METTL14 m6A methyltransferase complex, leading to increased m6A modification of host transcripts, including Trim25 mRNA. ZNF33B selectively binds m6A‐modified sites on Trim25 mRNA and accelerates its decay, resulting in reduced TRIM25 protein abundance.
Jian Du, Chunwei Li, Jiyuan Luo, Huizhi Zhang, Jinyan Zhang, Suya Wang, Huanchun Chen, Hongli Xu, Xiangmin Li, Ping Qian   +9 more
wiley   +1 more source

Versatile Detection of Cellular Protein via Fluorescence Anisotropy

Advanced Science, EarlyView.
Cell Lysate Fluorescence Anisotropy (CFAST) utilizes long lifetime dye‐labeled nanobodies for rapid protein quantification in minimally purified, complex cell lysate. When coupled with cellular thermal shift, CFAST allows high‐throughput detection of endogenous protein‐small molecule engagement, facilitating the discovery of novel binders for ...
Qing Tang, Yuan‐Ping Wei, Ricky Ruiqi Ma, Na Wei, Tammy Zihan Zhou, Hilary Kung‐Yu Ho, Zafar Iqbal Bhat, Iqra Ishrat, Xiaoyu Li, Judy Wai Ping Yam, Yung Hou Wong, Qiankun Wang, Justin L. Tan   +12 more
wiley   +1 more source

Radiation‐Induced Tumor‐Intrinsic LTβR N‐Glycosylation Suppresses Pyroptosis Through TRIM28‐Mediated PCBP2 SUMOylation to Promote Gastric Cancer Radioresistance

Advanced Science, EarlyView.
Radiotherapy triggers LTβR N‐glycosylation, enhancing its overall protein stability and nuclear retention. This accumulation drives TRIM28‐mediated PCBP2 SUMOylation, suppressing pyroptosis and conferring gastric cancer radioresistance. Therapeutically, a targeted nanoplatform (cRGD‐Lipo@EMD) effectively disrupts this regulatory axis, offering a highly
Weijie Zang, Yunlong Ji, Chunwang Zhou, Xiwen Li, Zhuang Lu, Guangze Zhang, Yu Chen, Wanjiang Xue, Yilin Hu   +8 more
wiley   +1 more source

UBE2O Drives Immune Evasion and Radioimmunotherapy Resistance in Lung Cancer by Degrading CDKL1 to Induce PD‐L1 Transcription

Advanced Science, EarlyView.
UBE2O targets CDKL1 for the degradation to upregulate PD‐L1 expression and promotes resistance to radioimmunotherapy in lung cancer, supporting the potential of targeting UBE2O as a promising therapeutic strategy. ABSTRACT Resistance to radioimmunotherapy is one of the primary causes of treatment failure in lung cancer patients; however, the underlying
Huichan Xue, Xiaohua Jie, Zhiwei Liu, Ruoxin Fang, Shuo Wu, Xiaorong Dong, Shuangbing Xu   +6 more
wiley   +1 more source

AI‐Assisted Digital Single‐Molecule Activity Tracker for Decoupling Intrinsic Heterogeneity from Photo‐Oxidative Damage in High‐Photon‐Flux Enzymology

Advanced Science, EarlyView.
Employing a digital single‐molecule activity tracker (dSMAT), this research demonstrates that high‐photon‐flux irradiation drives progressive oxidative scarring in polymerases. Unlike simple thermal denaturation, real‐time kinetic tracking dynamically visualizes enzymes degrading into multiple impaired subpopulations.
Anran Zheng, Qi Yang, Jinze Li, Fuqiang Ma, Xuefeng Wang, Zhen Guo, Chuanyu Li, Dongshu Li, Jia Yao, Zhiqi Zhang, Wei Zhang, Lianqun Zhou   +11 more
wiley   +1 more source

Interaction of an anticancer peptide fragment of azurin with p53 and its isolated domains studied by atomic force spectroscopy

International Journal of Nanomedicine, 2011
Anna Rita Bizzarri1, Simona Santini1, Emilia Coppari1, Monica Bucciantini2, Silvia Di Agostino3, Tohru Yamada4, Craig W Beattie4, Salvatore Cannistraro11Biophysics and Nanoscience Centre, CNISM, Facoltà di Scienze, Università della ...
Bizzarri AR, Santini S, Coppari E, Bucciantini M, Di Agostino S, Yamada T, Beattie CW, Cannistraro S   +7 more
doaj  

Interplay between DNA Polymerases and DNA Ligases: Influence on Substrate Channeling and the Fidelity of DNA Ligation. [PDF]

J Mol Biol, 2019
Çağlayan M.
europepmc   +1 more source