Results 61 to 70 of about 7,557 (223)

Nucleoprotein-based nanoscale assembly [PDF]

Proceedings of the National Academy of Sciences, 1997
A system for addressing in the construction of macromolecular assemblies can be based on the biospecificity of DNA (cytosine-5) methyltransferases and the capacity of these enzymes to form abortive covalent complexes at targeted 5-fluorocytosine residues in DNA.
S S, Smith, L, Niu, D J, Baker, J A, Wendel, S E, Kane, D S, Joy   +5 more
openaire   +2 more sources

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Genome encapsidation by orthobunyavirus nucleoproteins [PDF]

Proceedings of the National Academy of Sciences, 2013
All negative-sense, single-stranded RNA (−ssRNA) viruses encode a nucleoprotein (NP), the major function of which is to bind viral RNAs and encapsidate them as ribonucleoprotein complexes (RNPs) (1, 2). Consequently, the genomes of −ssRNA viruses do not exist as naked RNA but rather as protein–RNA complexes with high-order structures. In PNAS, Li et al.
Wenjie, Zheng, Yizhi Jane, Tao
openaire   +2 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Arenaviral Nucleoproteins Suppress PACT-Induced Augmentation of RIG-I Function To Inhibit Type I Interferon Production [PDF]

, 2018
RIG-I is a major cytoplasmic sensor of viral pathogen-associated molecular pattern (PAMP) RNA and induces type I interferon (IFN) production upon viral infection.
Junjie Shao, Da Di, Hinh Ly, Xiaoying Liu, Yuying Liang, Qinfeng Huang   +5 more
core   +1 more source

Ultrathin Hydrogel Membranes Inspired by Soap Films Enable Physiologically Relevant Breathing Lung Models

Advanced Materials, EarlyView.
A soap‐film inspired strategy enables the fabrication of ultrathin yet robust GelMA‐PAAm membranes for breathing lung culture. The hydrogel membrane supports long‐term cyclic deformation under air‐liquid interface conditions, enabling physiologically relevant breathing motions of engineered lung tissue culture. ABSTRACT Breathing continuously stretches
Yunji Lee, Gwang Myeong Kim, Wookyeom Kim, Fenny Soetanto, Gyungin Ryu, Taehun Chung, Youn Soo Kim, Junmin Lee, Hwa‐Rim Lee, Sungjune Jung   +9 more
wiley   +1 more source

DIFFERENTIATION OF NUCLEOPROTEINS BY INACTIVATION OF PROTEIN-BOUND AMINO GROUPS AND STAINING WITH TOLUIDINE BLUE AND AMMONIUM MOLYBDATE [PDF]

, 1959
1. A method of staining nucleic acids is described. The method depends upon (a) liberation of the phosphoryl groups of nucleic acids by inactivation of protein-bound amino groups; (b) binding of the phosphoryl groups by toluidine blue; and (c) coupling ...
ROBERT LOVE, ROSCOE H. LILES
core   +1 more source

Time‐Multiplexed Organic Electrochemical Transistor for Saliva‐Based Rapid Detection of Viral Proteins

Advanced Science, EarlyView.
A time‐multiplexed nanobody‐functionalized organic electrochemical transistor enables rapid and sensitive detection of three respiratory viral proteins from saliva. Sequentially addressed multi‐gate electrodes on a shared channel achieve around 1 fm detection within 15 min without sample preprocessing. Clinical validation demonstrates high specificity,
Tianrui Chang, Yuxiang Ren, Shofarul Wustoni, Atheer Alqatari, Adel Hama, Yazhou Wang, Long Chen, Jessica Parrado Agudelo, Luca Salvigni, Keying Guo, Ashraf Dada, Stefan T. Arold, Raik Grünberg, Sahika Inal   +13 more
wiley   +1 more source

Cysteine Redox State Governs the Condensation Pathway of Hendra Virus W Protein and Differentially Impacts Type I IFN and NF‐κB Signaling

Advanced Science, EarlyView.
The cysteine redox state of the Hendra virus W (WHeV) protein controls assembly into fibrils or amorphous aggregates, with residues 2–29 required for fibrillation. In cells, WHeV forms different types of nuclear condensates. Impaired ability to form redox‐sensitive, non‐filamentous condensates reduces WHeV inhibition of the NF‐κB pathway, while it ...
Frank Gondelaud, Alexandre Lalande, Giulia Pesce, Auriane Bouchet, Carole Meunier, Christophe Bignon, Denis Ptchelkine, Yu Gu, Eva Ogire, Pierre‐Yves Lozach, Denis Gerlier, Cyrille Mathieu, Sonia Longhi   +12 more
wiley   +1 more source

Ferritinophagy Rewires Carnitine‐Dependent Lipid Metabolism to Inhibit PRRSV and IAV Replication

Advanced Science, EarlyView.
NCOA4‐mediated ferritinophagy reprograms carnitine metabolism by disrupting Fe‐S cluster biogenesis, thereby establishing an iron‐lipid axis that suppresses various viruses, including PRRSV and IAV. However, viruses counteract this mechanism by degrading NCOA4.
Kaifeng Guan, Chenyang Yuan, Zekun Meng, Yanan Wang, Xueying Zhai, Chunjie Huang, Xiang Zhou, Gaiping Zhang   +7 more
wiley   +1 more source