Results 101 to 110 of about 3,048,093 (298)

An Iterative and Regenerative Method for DNA Sequencing

BioTechniques, 1997
This paper presents, to our knowledge, the first iterative DNA sequencing method that regenerates the product of interest during each iterative cycle, allowing it to overcome the critical obstacles that impede alternative iterative approaches to DNA ...
Douglas H. Jones
doaj   +1 more source

DNA Polymerase Delta Synthesizes Both Strands during Break-Induced Replication

Molecules and Cells, 2019
SUMMARY Break-induced replication (BIR) is a pathway of homology-directed repair that repairs one-ended DNA breaks, such as those formed at broken replication forks or uncapped telomeres. In contrast to conventional S phase DNA synthesis, BIR proceeds by
R. Donnianni, Zhi-Xiong Zhou, S. Lujan, Amr M Al-Zain, V. Garcia, Eleanor Glancy, Adam B. Burkholder, T. Kunkel, L. Symington   +8 more
semanticscholar   +1 more source

DNA polymerase α (swi7) and the flap endonuclease fen1 (rad2) act together in the s-phase alkylation damage response in S. pombe [PDF]

, 2012
Polymerase α is an essential enzyme mainly mediating Okazaki fragment synthesis during lagging strand replication. A specific point mutation in Schizosaccharomyces pombe polymerase α named swi7-1, abolishes imprinting required for mating-type switching ...
Koulintchenko Milana, Koulintchenko, Milana, Milana Koulintchenko, Sonya Vengrova, Vengrova S., Dalgaard Jacob Z., Trevor Eydmann, Prakash Arumugam, Eydmann Trevor, Koulintchenko M., Arumugam P., Vengrova, Sonya, Arumugam Prakash, Jacob Z. Dalgaard, Arumugam, Prakash, Eydmann T., Eydmann, Trevor, Dalgaard, Jacob Z., Jacob Z Dalgaard, Dalgaard J.Z., Vengrova Sonya   +20 more
core   +2 more sources

Somatostatin receptor 4 (SSTR4) is a tumor suppressor in cutaneous and head & neck squamous cell carcinomas

Molecular Oncology, EarlyView.
This study identifies somatostatin receptor 4 (Sstr4) as a critical tumor suppressor against skin and head/neck cancers (HNSCC, cSCC, and BCC). The loss of Sstr4 removes a check on cell growth, causing hyperactivation of the MAPK‐ERK signaling pathway (↑).
Ali Taqvi, Tuan Khang Huynh, Adway Kadam, Zahra Kardan, Yue Yan, Amina Jamal Laham, Sampath Kumar Loganathan   +6 more
wiley   +1 more source

A spontaneous termination mechanism of RNA polymerase V shapes the DNA methylation landscape in plants

The EMBO Journal
DNA methylation plays critical roles in eukaryotic gene silencing, genome imprinting, viral defense, and suppression of transposable elements. In plants, RNA Polymerase V (Pol V)-generated non-coding RNA guides DNA methylation through the RNA-directed ...
Guohui Xie, Xuan Du, Yifang Tan, Yuxing Zhou, Cheng Chi, Sixian Zhou, Colette L Picard, Songge Chai, Lei Wu, Danling Zhu, Jun Zhao, Yan Xue, Sisi Li, Steven E Jacobsen, Zhe Wu, Jiamu Du   +15 more
doaj   +1 more source

Full-length autonomous transposable elements are preferentially targeted by expression-dependent forms of RNA-directed DNA methylation

Genome Biology, 2016
Chromatin modifications such as DNA methylation are targeted to transposable elements by small RNAs in a process termed RNA-directed DNA methylation (RdDM).
Kaushik Panda, Lexiang Ji, Drexel A. Neumann, Josquin Daron, Robert J. Schmitz, R. K. Slotkin   +5 more
semanticscholar   +1 more source

ADP‐ribosylation: An emerging regulator of the epigenome

Molecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho, Chenqian Liu, W. Lee Kraus   +2 more
wiley   +1 more source

An RNA polymerase II- and AGO4-associated protein acts in RNA-directed DNA methylation

Nature, 2010
DNA methylation is an important epigenetic mark in many eukaryotes. In plants, 24-nucleotide small interfering RNAs (siRNAs) bound to the effector protein, Argonaute 4 (AGO4), can direct de novo DNA methylation by the methyltransferase DRM2 (refs 2, 4–6).
Zhihuan Gao, Hailiang Liu, L. Daxinger, Olga M. Pontes, Xinjian He, Weiqiang Qian, Hui-Xin Lin, M. Xie, Z. Lorković, Shoudong Zhang, D. Miki, Xianqiang Zhan, D. Pontier, Thierry Lagrange, Hailing Jin, A. Matzke, M. Matzke, C. Pikaard, Jian-Kang Zhu   +18 more
semanticscholar   +1 more source

Experimental test of connector rotation during DNA packaging into bacteriophage phi29 capsids [PDF]

, 2007
The bacteriophage phi29 generates large forces to compact its double-stranded DNA genome into a protein capsid by means of a portal motor complex. Several mechanical models for the generation of these high forces by the motor complex predict coupling of ...
Hetherington, Craig L., Craig L Hetherington, Falk, Wayne, Wayne Falk, Thorsten Hugel, Jardine, Paul J., Falk Wayne, Hugel Thorsten, Bustamante, Carlos, Grimes Shelley, Michaelis, Jens, Walter Jessica M, Bustamante Carlos, Michaelis Jens, Anderson, Dwight L., Hugel, Thorsten, Grimes, Shelley, Paul J Jardine, Jessica M Walter, Walter, Jessica M., Jardine Paul J, Dwight L Anderson, Jens Michaelis, Anderson Dwight L, Carlos Bustamante, Hetherington Craig L, Shelley Grimes   +26 more
core   +1 more source

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

Molecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source