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1,552 Results Found

  • Review
  • Open Access
15 Citations
4,027 Views
15 Pages

To Break or Not to Break: The Role of TOP2B in Transcription

  • Ian G. Cowell,
  • John W. Casement and
  • Caroline A. Austin

30 September 2023

Transcription and its regulation pose challenges related to DNA torsion and supercoiling of the DNA template. RNA polymerase tracking the helical groove of the DNA introduces positive helical torsion and supercoiling upstream and negative torsion and...

  • Review
  • Open Access
1 Citations
1,201 Views
21 Pages

12 June 2025

Retinal homeostasis and degeneration are significant contributors to global vision loss, with retinal health primarily assessed by the count and function of photoreceptor cells, the most abundant cells in the retina. Genomic studies have identified t...

  • Review
  • Open Access
24 Citations
4,982 Views
18 Pages

27 February 2020

Type 1A topoisomerases (topos) are the only topos that bind single-stranded DNA and the only ones found in all cells of the three domains of life. Two subfamilies, topo I and topo III, are present in bacteria. Topo I, found in all of them, relaxes ne...

  • Article
  • Open Access
1 Citations
1,164 Views
15 Pages

Substituted Triazole-3,5-Diamine Compounds as Novel Human Topoisomerase III Beta Inhibitors

  • Yasir Mamun,
  • Somaia Haque Chadni,
  • Ramanjaneyulu Rayala,
  • Hasham Shafi,
  • Shomita Ferdous,
  • Rudramani Pokhrel,
  • Adel Nefzi,
  • Prem Chapagain and
  • Yuk-Ching Tse-Dinh

Human topoisomerase III beta (hTOP3B) is a unique and important enzyme in human cells that plays a role in maintaining genome stability, affecting cellular aging, and potentially impacting viral replication. Its dual activity on both DNA and RNA make...

  • Article
  • Open Access
5 Citations
4,714 Views
29 Pages

14 January 2022

Although ultraviolet-B (UV-B) radiation reaching the ground represents a tiny fraction of the total solar radiant energy, it significantly affects human health and global ecosystems. Therefore, erythemal UV-B monitoring has recently attracted signifi...

  • Article
  • Open Access
3 Citations
3,133 Views
9 Pages

Flux Growth and Properties of Volatile Bromine-Containing UV Nonlinear Optical Crystal K3B6O10Br

  • Huaiyu Hu,
  • Chen Zhou,
  • Jiahao Jiao,
  • Siru Guo,
  • Yanna Chen and
  • Min Zhang

26 December 2021

A UV Nonlinear optical (NLO) crystal is one of the key devices in all-solid-state laser technology, and borate halides show outstanding potential due to their abundant structural diversity and short UV cut-off edges. In this article, the sizable UV N...

  • Article
  • Open Access
26 Citations
5,572 Views
28 Pages

Insight into the B3Transcription Factor Superfamily and Expression Profiling of B3 Genes in Axillary Buds after Topping in Tobacco (Nicotiana tabacum L.)

  • Fei Xia,
  • Tingting Sun,
  • Shuangjuan Yang,
  • Xiao Wang,
  • Jiangtao Chao,
  • Xiaoxu Li,
  • Junhua Hu,
  • Mengmeng Cui,
  • Guanshan Liu and
  • Yuhe Sun
  • + 1 author

20 February 2019

Members of the plant-specific B3 transcription factor superfamily play important roles in various growth and developmental processes in plants. Even though there are many valuable studies on B3 genes in other species, little is known about the B3 sup...

  • Article
  • Open Access
28 Citations
5,899 Views
22 Pages

4 December 2018

In this paper, we report the application of zinc phosphate electrostatic-painting top coating on cold sprayed AA7075 leading to a significant improvement in corrosion-fatigue performance. High strength AA7075 powder was sprayed on AZ31B substrate, fo...

  • Article
  • Open Access
7 Citations
3,317 Views
18 Pages

An MT-InSAR Data Partition Strategy for Sentinel-1A/B TOPS Data

  • Yuexin Wang,
  • Guangcai Feng,
  • Zhixiong Feng,
  • Yuedong Wang,
  • Xiuhua Wang,
  • Shuran Luo,
  • Yinggang Zhao and
  • Hao Lu

13 September 2022

The Sentinel-1A/B satellite launched by European Space Agency (ESA) in 2014 provides a huge amount of free Terrain Observation by Progressive Scans (TOPS) data with global coverage to the public. The TOPS data have a frame width of 250 km and have be...

  • Article
  • Open Access
11 Citations
4,705 Views
18 Pages

Musa Germplasm A and B Genomic Composition Differentially Affects Their Susceptibility to Banana Bunchy Top Virus and Its Aphid Vector, Pentalonia nigronervosa

  • Sergine Ngatat,
  • Rachid Hanna,
  • Jules Lienou,
  • Richard T. Ghogomu,
  • Sidonie Prisca K. Nguidang,
  • Aime C. Enoh,
  • Bertrand Ndemba,
  • Sam Korie,
  • Apollin Fotso Kuate and
  • P. Lava Kumar
  • + 2 authors

29 April 2022

Banana bunchy top disease (BBTD), caused by the banana bunchy top virus (BBTV, genus Babuvirus), is the most destructive viral disease of banana and plantain (Musa spp.). The virus is transmitted persistently by the banana aphid, Pentalonia nigronerv...

  • Article
  • Open Access
6 Citations
2,618 Views
17 Pages

1 December 2022

Sugarcane (Saccharum officinarum L.) is a tropical plant grown for sugar production. We recently showed that sugarcane top (ST) ameliorates cognitive decline in a mouse model of accelerated aging via promoting neuronal differentiation and neuronal en...

  • Review
  • Open Access
4 Citations
2,732 Views
12 Pages

DNA strand breaks excessively accumulate in the brains of patients with Alzheimer’s disease (AD). While traditionally considered random, deleterious events, neuron activity itself induces DNA breaks, and these “adaptive” breaks help...

  • Article
  • Open Access
10 Citations
5,442 Views
19 Pages

Chemotherapeutic Drugs Inhibiting Topoisomerase 1 Activity Impede Cytokine-Induced and NF-κB p65-Regulated Gene Expression

  • Tabea Riedlinger,
  • Marek Bartkuhn,
  • Tobias Zimmermann,
  • Sandra B. Hake,
  • Andrea Nist,
  • Thorsten Stiewe,
  • Michael Kracht and
  • M. Lienhard Schmitz

25 June 2019

Inhibitors of DNA topoisomerase I (TOP1), an enzyme relieving torsional stress of DNA by generating transient single-strand breaks, are clinically used to treat ovarian, small cell lung and cervical cancer. As torsional stress is generated during tra...

  • Article
  • Open Access
2 Citations
1,545 Views
18 Pages

In this study, an ultra-wideband absorber spanning from UV-B to middle-IR was designed and analyzed using a novel structure. The multilayer metamaterial, arranged from bottom to top, consisted of an Al metal layer, a lower SiO2 layer, a graphite laye...

  • Article
  • Open Access
7 Citations
2,704 Views
19 Pages

10 September 2024

By utilizing top-of-atmosphere radiation (TOAR) data from China’s new generation of geostationary satellites (FY-4A and FY-4B) along with interpretable machine learning models, near-surface particulate matter concentrations in China were estima...

  • Review
  • Open Access
87 Citations
10,228 Views
21 Pages

TOP2B: The First Thirty Years

  • Caroline A. Austin,
  • Ka C. Lee,
  • Rebecca L. Swan,
  • Mushtaq M. Khazeem,
  • Catriona M. Manville,
  • Peter Cridland,
  • Achim Treumann,
  • Andrew Porter,
  • Nick J. Morris and
  • Ian G. Cowell

14 September 2018

Type II DNA topoisomerases (EC 5.99.1.3) are enzymes that catalyse topological changes in DNA in an ATP dependent manner. Strand passage reactions involve passing one double stranded DNA duplex (transported helix) through a transient enzyme-bridged b...

  • Article
  • Open Access
79 Citations
7,894 Views
21 Pages

22 January 2021

Zygophyllum coccineum, an edible halophytic plant, is part of the traditional medicine chest in the Mediterranean region for symptomatic relief of diabetes, hypertension, wound healing, burns, infections, and rheumatoid arthritis pain. The current st...

  • Article
  • Open Access
2 Citations
1,560 Views
13 Pages

3 October 2024

DNA topoisomerase II (TOP2) is an enzyme that resolves DNA topological problems arising in various nuclear processes, such as transcription. Aclarubicin, a member of the anthracyclines, is known to prevent the association of TOP2 with DNA, inhibiting...

  • Article
  • Open Access
10 Citations
3,781 Views
24 Pages

Hybrid Quinolinyl Phosphonates as Heterocyclic Carboxylate Isosteres: Synthesis and Biological Evaluation against Topoisomerase 1B (TOP1B)

  • Asier Selas,
  • María Fuertes,
  • Estela Melcón-Fernández,
  • Yolanda Pérez-Pertejo,
  • Rosa M. Reguera,
  • Rafael Balaña-Fouce,
  • Birgitta R. Knudsen,
  • Francisco Palacios and
  • Concepcion Alonso

9 August 2021

This work describes, for the first time, the synthesis of dialkyl (2-arylquinolin-8-yl)phosphonate derivatives. The preparation was carried out through a direct and simple process as a multicomponent Povarov reaction of aminophenylphosphonates, aldeh...

  • Article
  • Open Access
17 Citations
3,390 Views
13 Pages

23 March 2021

TiB2/316L stainless steel composites were prepared by selective laser melting (SLM), and the adhesion work, interface energy and electronic structure of TiB2/γ-Fe interface in TiB2/316L stainless steel composites were investigated to explore the hete...

  • Article
  • Open Access
5 Citations
3,016 Views
10 Pages

12 April 2022

An ultrawideband rectangular waveguide to microstrip line transition operating at the whole LMDS and Ka band is presented. The transition is based on exciting three overlapped transversal patches that radiate into the narrow wall of the waveguide, ma...

  • Article
  • Open Access
7 Citations
1,852 Views
20 Pages

The Experimental Study of Dynamic Response of Marine Riser under Coupling Effect of Multiparameter

  • Run Zheng,
  • Chunguang Wang,
  • Wentao He,
  • Zhenyang Zhang,
  • Keshun Ma and
  • Mengqi Ren

13 September 2023

In order to investigate the dynamic response of a marine riser under the coupling effect of multiparameter, a model experiment of a marine riser was designed and carried out. The main parameters of the model test were divided into riser design parame...

  • Article
  • Open Access
14 Citations
8,600 Views
12 Pages

UV-B Exposure of Black Carrot (Daucus carota ssp. sativus var. atrorubens) Plants Promotes Growth, Accumulation of Anthocyanin, and Phenolic Compounds

  • Renate Müller,
  • José R. Acosta-Motos,
  • Dominik K. Großkinsky,
  • José A. Hernández,
  • Henrik Lütken and
  • Gregorio Barba-Espin

Black carrot (Daucus carota L. ssp. sativus var. atroburens) is a root vegetable with anthocyanins as major phenolic compounds. The accumulation of phenolic compounds is a common response to UV-B exposure, acting as protective compounds and as antiox...

  • Article
  • Open Access
2 Citations
2,444 Views
22 Pages

Optimized Probes of the CP Nature of the Top Quark Yukawa Coupling at Hadron Colliders

  • Darius A. Faroughy,
  • Blaž Bortolato,
  • Jernej F. Kamenik,
  • Nejc Košnik and
  • Aleks Smolkovič

24 June 2021

We summarize our recent proposals for probing the CP-odd iκ˜t¯γ5th interaction at the LHC and its projected upgrades directly using associated on-shell Higgs boson and top quark or top quark pair production. We first recount how to construct a CP-odd...

  • Review
  • Open Access
7 Citations
9,762 Views
14 Pages

Cancer Stem Cells of Differentiated B-Cell Malignancies: Models and Consequences

  • Emilie Gross,
  • Anne Quillet-Mary,
  • Loic Ysebaert,
  • Guy Laurent and
  • Jean-Jacques Fournie

25 March 2011

The concept of cancer stem cells has revolutionized our current vision of cancer development and was validated in solid tumors and cancers of the primitive hematopoietic compartment. Proof of the principle is still lacking, however, in malignancies o...

  • Article
  • Open Access
21 Citations
4,894 Views
19 Pages

Increased Expression of Micro-RNA-23a Mediates Chemoresistance to Cytarabine in Acute Myeloid Leukemia

  • Stefan Hatzl,
  • Bianca Perfler,
  • Sonja Wurm,
  • Barbara Uhl,
  • Franz Quehenberger,
  • Susanne Ebner,
  • Jakob Troppmair,
  • Andreas Reinisch,
  • Albert Wölfler and
  • Armin Zebisch
  • + 1 author

20 February 2020

Resistance to chemotherapy is one of the primary obstacles in acute myeloid leukemia (AML) therapy. Micro-RNA-23a (miR-23a) is frequently deregulated in AML and has been linked to chemoresistance in solid cancers. We, therefore, studied its role in c...

  • Article
  • Open Access
2 Citations
2,166 Views
30 Pages

Balancing Sensitivity and Specificity Enhances Top and Bottom Ranking in Genomic Prediction of Cultivars

  • Osval A. Montesinos-López,
  • Kismiantini,
  • Admas Alemu,
  • Abelardo Montesinos-López,
  • José Cricelio Montesinos-López and
  • Jose Crossa

21 January 2025

Genomic selection (GS) is a predictive methodology that is revolutionizing plant and animal breeding. However, the practical application of the GS methodology is challenging since a successful implementation requires a good identification of the best...

  • Article
  • Open Access
7 Citations
3,433 Views
14 Pages

13 December 2019

The hard and corrosion resistant coatings of Mo2NiB2 cermet were prepared by the laser cladding technique. The influences of the Mo:B ratio and the laser scanning speed on the microstructure and property of the Mo2NiB2 cermet coatings were investigat...

  • Article
  • Open Access
60 Citations
6,813 Views
26 Pages

28 March 2019

The blending of woody and herbaceous biomass can influence pellet quality and the energy consumption of the process. This work aims to understand the pelleting characteristics of 2-inch top-pine residue blended with switchgrass at high moisture conte...

  • Article
  • Open Access
972 Views
21 Pages

28 July 2025

Convective updrafts are one of the main characteristics of convective clouds, responsible for the convective mass flux and the redistribution of energy and condensate in the atmosphere. During the early stages of their lifecycle, convective clouds ex...

  • Article
  • Open Access
5 Citations
3,928 Views
14 Pages

Shiga-toxin-producing Escherichia coli (STEC) are a burden on agriculture and a threat to public health. Rapid methods are needed to identify STEC strains and characterize the Shiga toxin (Stx) they produce. We analyzed three STEC strains for Stx exp...

  • Article
  • Open Access
35 Citations
5,035 Views
12 Pages

Plant-based foods are characterized by significant amounts of bioactive molecules with desirable health benefits beyond basic nutrition. The Brassicaceae (Cruciferae) family consists of 350 genera; among them, Brassica is the most important one, whic...

  • Article
  • Open Access
2 Citations
1,822 Views
27 Pages

17 February 2024

The results examining the direction (bottom-to-top vs. top-to-bottom) of the mental vertical timeline are not conclusive. The visuospatial processing of temporal stimuli along vertical space could influence this time representation. This study aimed...

  • Article
  • Open Access
5 Citations
2,506 Views
14 Pages

8 June 2023

A series of model tests were conducted to investigate the bearing capacity and reinforced mechanism of a horizontal–vertical (H–V) geogrid-reinforced foundation. The bearing capacities of the unreinforced foundation, the conventional geog...

  • Article
  • Open Access
1 Citations
2,460 Views
16 Pages

16S rRNA Analysis of Electrogenic Bacterial Communities from Soil Microbial Fuel Cells

  • Ana Rumora,
  • Liliana Hopkins,
  • Kayla Yim,
  • Melissa F. Baykus,
  • Luisa Martinez and
  • Luis Jimenez

Electrogenic bacteria present in bioelectrical devices such as soil microbial fuel cells (SMFCs) are powered by the oxidation of organic and inorganic compounds due to microbial activity. Fourteen soils randomly selected from Bergen Community College...

  • Article
  • Open Access
1 Citations
2,586 Views
17 Pages

23 August 2024

Tropomyosin kinase receptor B (TrkB) has been explored as a therapeutic target for neurological and psychiatric disorders. However, the development of TrkB agonists was hindered by our poor understanding of the TrkB agonist binding location and affin...

  • Article
  • Open Access
17 Citations
5,874 Views
17 Pages

11 September 2020

A burgeoning stream of sustainability research explores the role of companies’ top management team (TMT) characteristics in corporate sustainability efforts, while another stream investigates the effect of a company’s supply chain positio...

  • Article
  • Open Access
5 Citations
3,079 Views
23 Pages

Coupled Effects of Reduced Chemical Fertilization and Biochar Supplementation on Availability and Transformations of Nitrogen and Phosphorus in Vegetable Farmland Soil: An In Situ Study in Southern China

  • Xiongsheng Yu,
  • Yong Liu,
  • Mu Zhang,
  • Shaoying Ai,
  • Rongping Wang,
  • Li’an Zhu,
  • Huihua Zhang,
  • Ting Li,
  • Yaqi Zhu and
  • Minglong Liu
  • + 3 authors

Reduced fertilization technology is an eco-friendly strategy to minimize nitrogen (N) and phosphorus (P) surpluses and losses in vegetable production. However, little is known about the performance of chemical fertilizer reduction when supplemented w...

  • Review
  • Open Access
2 Citations
3,006 Views
37 Pages

30 September 2023

Since the initial measurements of single-top quark production at the Tevatron in 2009, tremendous progress has been made at the LHC. While LHC Run 1 marked the beginning of a precision era for the single-top quark measurements in some of the main pro...

  • Article
  • Open Access
2 Citations
4,947 Views
13 Pages

Comparison of Cabin Noise of Airport Express Rail Systems

  • Heow Pueh Lee,
  • Sanjay Kumar,
  • Saurabh Garg and
  • Kian Meng Lim

29 December 2021

In this paper, the cabin noise of four airport express rail systems, namely the Taiwan Taoyuan International Airport MRT, the Hong Kong Airport Express, RER B service from Paris Gare du Nord to Paris Charles de Gaulle Airport, and the Shanghai Maglev...

  • Article
  • Open Access
10 Citations
4,321 Views
20 Pages

30 November 2021

EphB3 is a major key player in a variety of cellular activities, including cell migration, proliferation, and apoptosis. However, the exact role of EphB3 in cancer remains ambiguous. Accordingly, new EphB3 inhibitors can increase the understanding of...

  • Article
  • Open Access
2,864 Views
15 Pages

A Constant Round Write-Only ORAM

  • Bo Zhao,
  • Zhihong Chen,
  • Hai Lin and
  • XiangMin Ji

3 August 2020

The write-only oblivious RAM (ORAM) is proposed to efficiently protect the privacy of applications such as cloud storage synchronization and encrypted hidden volumes. For N blocks with size B = Ω(log2N), the most efficient write-only ORAM, DetWoORAM,...

  • Article
  • Open Access
8 Citations
4,090 Views
19 Pages

Computational Assessment of Botrytis cinerea Lipase for Biofuel Production

  • Tehsin Fatma,
  • Zeeshan Zafar,
  • Sidra Fatima,
  • Rehan Zafar Paracha,
  • Fazal Adnan,
  • Zeshan,
  • Nasar Virk and
  • Muhammad Faraz Bhatti

30 October 2021

The demand for ecofriendly green catalysts for biofuel synthesis is greatly increasing with the effects of fossil fuel depletion. Fungal lipases are abundantly used as biocatalysts for the synthesis of biofuel. The use of Botrytis cinerea lipase is a...

  • Communication
  • Open Access
9 Citations
7,361 Views
10 Pages

High-Efficiency Grating Couplers for Pixel-Level Flat-Top Beam Generation

  • Zhong-Tao Tian,
  • Ze-Peng Zhuang,
  • Zhi-Bin Fan,
  • Xiao-Dong Chen and
  • Jian-Wen Dong

We demonstrate a kind of grating coupler that generates a high quality flat-top beam with a small beamwidth from photonic integrated circuits into free-space. The grating coupler is designed on a silicon-on-insulator wafer with a 220-nm-thick silicon...

  • Technical Note
  • Open Access
1 Citations
2,214 Views
15 Pages

16 June 2023

Measurements of the global cloud vertical structure (CVS) are critical to better understanding the effects of the CVS on climate. Current CVS algorithms based on OCO-2 have to be combined with cloud top height products from CALIPSO and CloudSat, whic...

  • Article
  • Open Access
14 Citations
4,497 Views
18 Pages

Adamantane-Monoterpenoid Conjugates Linked via Heterocyclic Linkers Enhance the Cytotoxic Effect of Topotecan

  • Aldar A. Munkuev,
  • Nadezhda S. Dyrkheeva,
  • Tatyana E. Kornienko,
  • Ekaterina S. Ilina,
  • Dmitry I. Ivankin,
  • Evgeniy V. Suslov,
  • Dina V. Korchagina,
  • Yuriy V. Gatilov,
  • Alexandra L. Zakharenko and
  • Olga I. Lavrik
  • + 4 authors

Inhibiting tyrosyl-DNA phosphodiesterase 1 (TDP1) is a promising strategy for increasing the effectiveness of existing antitumor therapy since it can remove the DNA lesions caused by anticancer drugs, which form covalent complexes with topoisomerase...

  • Article
  • Open Access
15 Citations
6,665 Views
14 Pages

Role of Topoisomerases in Pediatric High Grade Osteosarcomas: TOP2A Gene Is One of the Unique Molecular Biomarkers of Chemoresponse

  • Aurelia Nguyen,
  • Christelle Lasthaus,
  • Eric Guerin,
  • Luc Marcellin,
  • Erwan Pencreach,
  • Marie-Pierre Gaub,
  • Dominique Guenot and
  • Natacha Entz-Werle

4 June 2013

Currently, the treatment of pediatric high-grade osteosarcomas systematically includes one topoisomerase IIα inhibitor. This chemotherapy is usually adapted to the response to the neo-adjuvant therapy after surgery. The current and unique marker of c...

  • Article
  • Open Access
2 Citations
1,973 Views
24 Pages

20 February 2025

Proteins involved in synaptic transmission in normal hearing, acoustic stimulation, and tinnitus were identified using protein–protein interaction (PPI) networks. The gene list for tinnitus was compiled from the GeneCards database using the key...

  • Article
  • Open Access
25 Citations
5,725 Views
13 Pages

Reverse gyrase introduces positive supercoils to circular DNA and is implicated in genome stability maintenance in thermophiles. The extremely thermophilic crenarchaeon Sulfolobus encodes two reverse gyrase proteins, TopR1 (topoisomerase reverse gyra...

  • Article
  • Open Access
32 Citations
15,309 Views
11 Pages

Prevalence and Amounts of Common Ingredients Found in Energy Drinks and Shots

  • Andrew R. Jagim,
  • Patrick S. Harty,
  • Abdelrahman R. Barakat,
  • Jacob L. Erickson,
  • Victoria Carvalho,
  • Chinguun Khurelbaatar,
  • Clayton L. Camic and
  • Chad M. Kerksick

13 January 2022

Background: Energy drinks are one of the most popular packaged beverage products consumed within the United States (US). Energy drinks are considered a functional beverage, a category that also includes sports drinks and nutraceutical beverages. Purp...

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