Results 61 to 70 of about 309,243 (261)

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

The complete mitochondrial genome of Tachysurus virgatus (Oshima 1926) (Siluriformes: Bagridae) and its phylogenetic status

Mitochondrial DNA. Part B. Resources, 2020
Tachysurus virgatus (Oshima 1926) is a small and benthic Bagridae species that resides in the Southern China and Viet Nam. Currently, limited published genetic information has hindered our understanding of this species. In the current study, the complete
Yujie He, Jie Li
doaj   +1 more source

Small RNA pathways in mammalian oocytes

FEBS Open Bio, EarlyView.
Three distinct small RNA pathways operate in mammalian oocytes: RNAi interference (RNAi), the microRNA (miRNA) pathway, and the PIWI‐associated RNA (piRNA) pathway. These pathways use small RNAs to guide sequence‐specific repression and contribute to oocyte biology by targeting genes and mobile elements or appear insignificant since different ...
Petr Svoboda, Josef Pasulka
wiley   +1 more source

Updating the Species Diversity of Pestalotioid Fungi: Four New Species of Neopestalotiopsis and Pestalotiopsis

Journal of Fungi
Pestalotioid fungi are associated with a wide variety of plants around the world as pathogens, endophytes, and saprobes. In this study, diseased leaves and branches of plants were collected from Guizhou and Sichuan in China.
Weishan Zhang, Yixuan Li, Lu Lin, Aoli Jia, Xinlei Fan   +4 more
doaj   +1 more source

Phylogenetic analyses of the nitrogen-fixing genus Derxia

The Journal of General and Applied Microbiology, 2004
Phylogenetic analyses of the 16S rRNA gene sequence indicate that the genus Derxia forms a distinct lineage in the beta-Proteobacteria. On the NJ tree Derxia has a low bootstrap value (30.9%) with Alcaligeneceae, and on the ML tree it shows an independent cluster separated from other families. Moreover, there is below 93.4% 16S rDNA sequence similarity
Xie, Cheng-Hui, Yokota, Akira
openaire   +3 more sources

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

Phylogenetic and phylodynamic analyses of SARS-CoV-2

Virus Research, 2020
To investigate the evolutionary and epidemiological dynamics of the current COVID-19 outbreak, a total of 112 genomes of SARS-CoV-2 strains sampled from China and 12 other countries with sampling dates between 24 December 2019 and 9 February 2020 were analyzed.
Nie, Qing, Li, Xingguang, Chen, Wei, Liu, Dehui, Chen, Yingying, Li, Haitao, Li, Dongying, Tian, Mengmeng, Tan, Wei, Zai, Junjie   +9 more
openaire   +2 more sources

How phagocytic cells kill bacteria: Lessons from a professional killer

FEBS Open Bio, EarlyView.
How phagocytic cells ingest and kill bacteria has been studied for more than a century, but many questions remain unanswered. The study of the amoeba Dictyostelium discoideum brings new answers, and new questions. Professional phagocytic cells such as neutrophils and macrophages, as well as free‐living soil amoebae like Dictyostelium discoideum, employ
Otmane Lamrabet, Pierre Cosson
wiley   +1 more source

An introduction to phylogenetic analyses and modelling in ecology [PDF]

Computational Ecology and Software, 2015
Phylogenetic systematics seeks to describe and reconstruct the evolutionary relationships among and between organisms making use of molecular data. This field has become immensely popular in recent years, with the associated computational demands growing
H.O. Minoarivelo, G. Diedericks, C. Hui
doaj  

Complete mitochondrial genome of the snakehead (Channa gachua) and its phylogeny

Mitochondrial DNA. Part B. Resources, 2019
In present study, the mitochondrial genome (mitogenome) of Channa gachua was determined and the phylogenetic relationship of Channidae fish was reconsidered. The mitogenome of the C. gachua is 16547 bp in length, containing 13 protein coding genes (PCGs),
Bin He, Xingguo Liu, Yingying Huan, Xuan Che, Tao Yan, Jungang Yan, Zhihai Long, Bin Li, Zheng-Yong Wen   +8 more
doaj   +1 more source