Results 71 to 80 of about 1,562,024 (293)

Mechanisms of MCM2–7 helicase activation and initial DNA melting at near base-pair resolution

Nature Communications
During eukaryotic DNA replication initiation, inactive MCM2–7 double-hexamers assembled at replication origins must be converted into two active CMG helicases, yet how this transition is coupled to origin DNA unwinding in vivo remains unclear.
Christopher Weekes, Lia Willerding, Sanjay P. Khadayate, Korbinian Liebl, Audrey Mossler, Alex Montoya, Vanessa Rauthe, Mohammad M. Karimi, Martin Zacharias, Helle D. Ulrich, Christian Speck, L. Maximilian Reuter   +11 more
doaj   +1 more source

Mechanism of DNA loading by the DNA repair helicase XPD [PDF]

Nucleic Acids Research, 2016
The xeroderma pigmentosum group D (XPD) helicase is a component of the transcription factor IIH complex in eukaryotes and plays an essential role in DNA repair in the nucleotide excision repair pathway. XPD is a 5' to 3' helicase with an essential iron-sulfur cluster.
Constantinescu-Aruxandei, Diana, Petrovic-Stojanovska, Biljana, Penedo, Carlos, White, Malcolm F, Naismith, James H   +4 more
openaire   +4 more sources

TED1 Promotes the Assembly of SCFD3‐D14‐D53 to Reinforce Strigolactone Signaling in Rice

Advanced Science, EarlyView.
This study identifies TED1 as a positive regulator of strigolactones (SL) signaling in rice. The ted1 mutants display dwarfism and increased tillering with significantly reduced SLs sensitivity. Through its longer C‐terminal region, TED1 interacts with D53 and D14 to promote the assembly of SCFD3‐D14‐D53, thereby facilitating the efficient ...
Sheng Luo, Chuanyin Wu, Miao Feng, Wenfan Luo, Rong Miao, Jinsheng Qian, Fan Wang, Chunlei Zhou, Bojuan Liu, Jiale Shao, Ziqi Xun, Yehui Xiong, Zhichao Zhao, Cailin Lei, Shanshan Zhu, Yulong Ren, Xin Wang, Xiuping Guo, Haiyang Wang, Zichao Li, Zhijun Cheng, Qibing Lin, Jianmin Wan   +22 more
wiley   +1 more source

Extended DNA threading through a dual-engine motor module of the activating signal co-integrator 1 complex

Nature Communications, 2023
ASCC3 is a multi-functional helicase that contains two consecutive Ski2-like helicase units. Here, the authors show that ASCC3 can unwind DNA by threading one strand of a substrate duplex through both helicase units, supported by the TRIP4 protein.
Junqiao Jia, Tarek Hilal, Katherine E. Bohnsack, Aleksandar Chernev, Ning Tsao, Juliane Bethmann, Aruna Arumugam, Lane Parmely, Nicole Holton, Bernhard Loll, Nima Mosammaparast, Markus T. Bohnsack, Henning Urlaub, Markus C. Wahl   +13 more
doaj   +1 more source

RNA Promotes Synapsin Condensates That Organize Synaptic Vesicles in Live Neurons and Enable Localized Translation in Reconstituted System

Advanced Science, EarlyView.
Condensates at synapses organize synaptic vesicles (SVs) and are crucial for efficient neurotransmitter release, yet how RNA contributes to this mesoscale architecture remains poorly understood. Here we uncover that RNA modulates synapsin–driven condensates.
Branislava Rankovic, Zachary M. Geisterfer, Akshita Chhabra, Vladimir M. Jovanovic, Ian Seim, Christian Hoffmann, Antonela Condric, Gerard Aguilar Pérez, Rinse de Boer, Lars T. Hofstede, Jingao Sun, Kiara Freitag, Katja Nowick, Marina Jendrach, Frank L. Heppner, Vladimir Despic, Michaela Müller‐McNicoll, Stephan Sigrist, Geert van den Bogaart, Sofiia Reshetniak, Amy S. Gladfelter, Dragomir Milovanovic   +21 more
wiley   +1 more source

The Response of the Replication Apparatus to Leading Template Strand Blocks

Cells, 2023
Duplication of the genome requires the replication apparatus to overcome a variety of impediments, including covalent DNA adducts, the most challenging of which is on the leading template strand.
Marina A. Bellani, Althaf Shaik, Ishani Majumdar, Chen Ling, Michael M. Seidman   +4 more
doaj   +1 more source

Photobiomodulation‑Engineered Extracellular Vesicles Enhance Neural Differentiation via UFL1‑Mediated UFMylation in Spinal Cord Injury

Advanced Science, EarlyView.
Photobiomodulated microglia release engineered extracellular vesicles that deliver UFL1 to the injured spinal cord. UFL1 competitively binds p53 with MDM2, inhibiting p53 ubiquitination and stabilizing p53 signaling. This dual mechanism simultaneously promotes anti‐inflammatory microglial polarization and directs neural stem cell differentiation toward
Yunxiao Fang, Zuomeng Wu, Ruocheng Guo, Cancan Wang, Yue Qin, Yixiang Dong, Aoyun Li, Ao Liu, Chongyu Jia, Tianyu Han, Peiwen Song, Lei Chen, Cailiang Shen   +12 more
wiley   +1 more source

Human RECQL5{beta} stimulates flap endonuclease 1 [PDF]

, 2010
Human RECQL5 is a member of the RecQ helicase family which is implicated in genome maintenance. Five human members of the family have been identified; three of them, BLM, WRN and RECQL4 are associated with elevated cancer risk. RECQL1 and RECQL5 have not
Dawut, Lale, Wang, Z, Hedayati, Mohammad, Hedayati, M, Croteau, Deborah L, Speina, Elzbieta, Speina, E, Janscak, Pavel, Bohr, Vilhelm A, May, Alfred, Croteau, D L, Schwendener, Sybille, Janscak, Pavel; https://orcid.org/, May, A, Dawut, L, Schwendener, S, Wang, Zhengming, Bohr, V A   +17 more
core   +3 more sources

ZBTB18 Dysfunction Promotes Neuropathic Pain via CHD4‐based Epigenetic Disinhibition of CLIC1 Channels in Sensory Neurons

Advanced Science, EarlyView.
In this study, we identify a novel functional role of ZBTB18 in regulating trigeminal‐mediated neuropathic pain. Nerve injury reduces ZBTB18 in trigeminal ganglion neurons, impairing CHD4/NuRD recruitment and de‐repressing Clic1. Elevated CLIC1 enhances chloride channel activity and neuronal hyperexcitability, thereby driving pain.
Shoupeng Wang, Zitong Huang, Yu Tao, Yunmei Zhang, Yufang Sun, Dongsheng Jiang, Weiwei Lu, Fuhai Ji, Gang Chen, Min Xu, Yuan Zhang, Jin Tao   +11 more
wiley   +1 more source

p68 RNA helicase - identification of a nucleolar form and cloning of related genes containing a conserved intron in yeasts [PDF]

, 2014
The human p68 protein is an RNA-dependent ATPase and RNA helicase which was first identified because of its immunological cross-reaction with a viral RNA helicase, simian virus 40 large T antigen.
Jamieson, DJ, Lane, DP, MacNeill, Stuart Andrew, McPheat, J, Southgate, J, Iggo, RD   +5 more
core   +2 more sources