Results 101 to 110 of about 230,793 (360)

Evolution‐Guided Discovery of Antimycobacterial Triculamin‐Like Lasso Peptides

Angewandte Chemie, EarlyView.
The hypothesized convergent biosynthesis of triculamin‐like lasso peptides from different biosynthetic gene cluster (BGC) types represented across multiple bacterial phyla. The elucidation of the triculamin non‐canonical BGC and resistance mechanism by heterologous expression in Streptomyces albus and in vitro acetylation with resistance conveying ...
Aske Merrild, Tiziana Svenningsen, Marc G. Chevrette, Thomas Tørring   +3 more
wiley   +2 more sources

Diverse infectivity, transmissibility, and pathobiology of clade 2.3.4.4 H5Nx highly pathogenic avian influenza viruses in chickens

Emerging Microbes and Infections, 2023
Clade 2.3.4.4 Eurasian lineage H5Nx highly pathogenic avian influenza virus (HPAIV) has become the globally dominant clade and caused global outbreaks since 2014. The clade 2.3.4.4 viruses have evolved into eight hemagglutinin subgroups (2.3.4.4a-h).
Jung-Hoon Kwon, Kateri Bertran, Dong-Hun Lee, Miria Ferreira Criado, Lindsay Killmaster, Mary J. Pantin-Jackwood, David E. Swayne   +6 more
doaj   +1 more source

Bloch oscillations in atom interferometry [PDF]

, 2014
In Paris, we are using an atom interferometer to precisely measure the recoil velocity of an atom that absorbs a photon. In order to reach a high sensitivity, many recoils are transferred to atoms using the Bloch oscillations technique. In this lecture, I will present in details this technique and its application to high precision measurement.
arxiv   +1 more source

Global Escherichia coli Sequence Type 131 Clade with blaCTX-M-27 Gene

Emerging Infectious Diseases, 2016
Increased extended-spectrum β-lactamase–producing E. coli in Japan resulted mainly from a clade containing this gene.
Y. Matsumura, J. Pitout, R. Gomi, T. Matsuda, T. Noguchi, M. Yamamoto, G. Peirano, R. Devinney, P. Bradford, M. Motyl, Michio Tanaka, M. Nagao, S. Takakura, S. Ichiyama   +13 more
semanticscholar   +1 more source

Chromosome‐Level Genome Assembly of the Leafcutter Bee Megachile rotundata Reveals Its Ecological Adaptation and Pollination Biology

Advanced Science, EarlyView.
The genome of Megachile rotundata, an extensively managed solitary pollination bee species, has been sequenced, covering 280.68 Mb and predicting 10 701 genes. The study reveals significant expansions of the Toll gene family and their abundant expression in diapause prepupae, highlighting enhanced immune responses during diapause. This genome serves as
Rangjun Shi, Pan Duan, Mengmeng Zhu, Rong Zhang, Zihua Zhao, Xin Nie, Hanhou He, Li Hou, Xianhui Wang   +8 more
wiley   +1 more source

Decoding the Chemical Language of Ribosomally Synthesized and Post‐Translationally Modified Peptides from the Untapped Archaea Domain

Angewandte Chemie, EarlyView.
Secondary metabolites (SMs) are essential across all life domains, yet those originating from the Archaea domain remain poorly understood. Here, the systematic genome mining and the pioneering heterologous expression of archaeal SMs have revealed the chemical landscape of archaeal lanthipeptides, showing both canonical and non‐canonical forms.
Zhi‐Man Song, Cunlei Cai, Ying Gao, Xiaoqian Lin, Qian Yang, Dengwei Zhang, Gengfan Wu, Haoyu Liang, Qianlin Zhuo, Junliang Zhang, Peiyan Cai, Haibo Jiang, Wenhua Liu, Yong‐Xin Li   +13 more
wiley   +2 more sources

DNA barcode approaches to reveal interspecies genetic variation of Indian ungulates

Mitochondrial DNA. Part B. Resources, 2020
In the past two decades, identification of species from noninvasive sampling has turned out to be an important tool for wildlife conservation. In this study a total 93 specimens representing 22 species of ungulates were analyzed from partial sequences of
Ranjana Bhaskar, Praveen Kanaparthi, Rengasamy Sakthivel   +2 more
doaj   +1 more source

Nitrous Oxide Reduction Kinetics Distinguish Bacteria Harboring Clade I NosZ from Those Harboring Clade II NosZ

Applied and Environmental Microbiology, 2016
Bacteria capable of reduction of nitrous oxide (N2O) to N2 separate into clade I and clade II organisms on the basis of nos operon structures and nosZ sequence features. To explore the possible ecological consequences of distinct nos clusters, the growth
Sukhwan Yoon, Silke Nissen, Doyoung Park, R. Sanford, F. Löffler   +4 more
semanticscholar   +1 more source

Dynamic Cap‐Mediated Substrate Access and Potent Inhibitor Design of Monkeypox Virus I7L Protease

Advanced Science, EarlyView.
The first crystal structure of MPXV I7L protease, revealing its unique dimeric form is resolved. The structures and MD simulations uncovered a dynamic cap region that regulates substrate access to the active site. The structural basis of substrate recognition and the catalytic mechanism are elucidated, which led to the development of a FRET‐based assay
Haixia Su, Guoqing Wu, Muya Xiong, Yuhang Wang, Junyuan Cao, Mengyuan You, Yingchun Xiang, Tianqing Nie, Minjun Li, Gengfu Xiao, Leike Zhang, Qiang Shao, Yechun Xu   +12 more
wiley   +1 more source

Discovery and Biosynthesis of Celluxanthenes, Antibacterial Arylpolyene Alkaloids From Diverse Cellulose‐Degrading Anaerobic Bacteria

Angewandte Chemie, EarlyView.
The structure and biosynthetic origin of the enigmatic “yellow affinity substance” (YAS) from the anaerobe thermophile Clostridium thermocellum (now: Acetivibrio thermocellus) were elucidated. YAS is a complex of unusual antibacterial arylpolyene alkaloids (celluxanthenes) that are produced by various cellulolytic anaerobes.
Keishi Ishida, Jana Krabbe, Philippe R. Meisinger, Gulimila Shabuer, Sebastian Schieferdecker, Michael Cyrulies, Cedric Tank, Emma Barnes, Christian Paetz, Christian Hertweck   +9 more
wiley   +2 more sources