Results 161 to 170 of about 102,384 (311)

A Digital Atlas of Human Ultrastructure

Small, EarlyView.
An interactive resource with ultrastructural data of human organs. Analyse organs from sub‐millimeter up to the nanometer range of macromolecules in a similar way as Google‐earth: https://www.nanotomy.org/OA/HumanAtlas/. ABSTRACT Electron microscopy (EM) is the method to visualize the building blocks of life in organs and tissues at biomolecular ...
Anouk H. G. Wolters, Kim Kats, Jeroen Kuipers, Erik Bleuel, Ben N. G. Giepmans   +4 more
wiley   +1 more source

Processive DNA synthesis is associated with localized decompaction of constitutive heterochromatin at the sites of DNA replication and repair

Nucleus, 2019
Constitutive heterochromatin is considered as a functionally inert genome compartment, important for its architecture and stability. How such stable structure is maintained is not well understood.
Vadim O. Chagin, Britta Reinhart, Annette Becker, Oliver Mortusewicz, K. Laurence Jost, Alexander Rapp, Heinrich Leonhardt, M. Cristina Cardoso   +7 more
doaj   +1 more source

Ectopic heterochromatin provides an alternative route to fungal resistance

Antifungal resistance in fungi, including the human pathogen Cryptococcus neoformans, commonly occurs via genetic mutations. However, the existence of unstable drug-resistant isolates suggests the possibility of epimutation-mediated resistance.
Yeboah, Rebecca
core   +1 more source

Rotenone Induces Morphological Damage and Reduction in Catecholamine Levels in the Central Nervous System of the Ascidian Styela plicata

Environmental Toxicology, EarlyView.
ABSTRACT Ascidians are invertebrates that occupy a key phylogenetic position as a sister group of the vertebrates. The organization of their central nervous system (CNS), with cortex and medulla, indicates a plesiomorphic character of the gray and white matter of vertebrates, making this group of animals useful for studies of neurodegenerative events ...
Andressa de Abreu Mello, Carlos Augusto Borges de Andrade Gomes, Rafaela Rocha dos Santos, Cintia Monteiro de Barros, Silvana Allodi   +4 more
wiley   +1 more source

Fission yeast Caprin protein is required for efficient heterochromatin establishment.

PLoS Genetics
Heterochromatin is a key feature of eukaryotic genomes that serves important regulatory and structural roles in regions such as centromeres. In fission yeast, maintenance of existing heterochromatic domains relies on positive feedback loops involving ...
Haidao Zhang, Ekaterina Kapitonova, Adriana Orrego, Christos Spanos, Joanna Strachan, Elizabeth H Bayne   +5 more
doaj   +1 more source

Transposons as Tools for Future Genome Engineering in Yeasts and Filamentous Fungi

Yeast, EarlyView.
Applications of transposon‐based tools for genome engineering in fungi include transposon‐mediated mutagenesis and targeted genomic integration. ABSTRACT Transposons are fundamental genetic elements that have profoundly shaped the architecture of eukaryotic genomes.
Bingyin Peng, Masahiro Tominaga, Chengqiang Wang, Robert E. Speight, Jun Ishii   +4 more
wiley   +1 more source

Mepolizumab Modifies Blood Eosinophil Proteome and Transcriptome in Severe Eosinophilic Asthma

Allergy, EarlyView.
This study investigates the effect of mepolizumab on the proteomic and transcriptomic profile of blood eosinophils in SEA patients. Mepolizumab reduces the migratory capacity and effector‐related molecular signatures of circulating eosinophils in SEA patients.
Pablo Miguéns‐Suárez, Sara Vázquez‐Mera, Laura Martelo‐Vidal, Marina Blanco Aparicio, Uxío Calvo Álvarez, Coral González Fernández, Mar Mosteiro Añón, Dolores Corbacho Abelaira, Tamara Hermida Valverde, Christian Calvo Henríquez, Susana B. Bravo, Lena Uller, Juan J. Nieto‐Fontarigo, Francisco J. Salgado, Francisco J. González‐Barcala   +14 more
wiley   +1 more source

CHAMP1 complex directs heterochromatin assembly and promotes homology-directed DNA repair

Nature Communications
The CHAMP1 complex, a little-known but highly conserved protein complex consisting of CHAMP1, POGZ, and HP1α, is enriched in heterochromatin though its cellular function in these regions of the genome remain unknown.
Feng Li, Tianpeng Zhang, Aleem Syed, Amira Elbakry, Noella Holmer, Huy Nguyen, Sirisha Mukkavalli, Roger A. Greenberg, Alan D. D’Andrea   +8 more
doaj   +1 more source

Chromodomain Helicase DNA–Binding Proteins and Spermatogenesis: Current Advances

Andrology, EarlyView.
ABSTRACT Background Male infertility is a prevalent clinical condition, with approximately one‐third of cases classified as idiopathic, frequently stemming from impaired spermatogenesis because of dysregulated gene expression. Chromodomain helicase DNA‐binding (CHD) proteins are central chromatin remodelers that orchestrate this epigenetic regulation ...
Mingrui Zhang, Di Liu, Guoqiang Liu, Minggang Zhu, Feng Pan   +4 more
wiley   +1 more source

Spatiotemporal Expression of ARRDC5 in Mammalian Spermatogenesis

Andrology, EarlyView.
ABSTRACT Background Spermiogenesis is the final phase of sperm development during which haploid round spermatids transform into specialized spermatozoa and occurs across distinct stages of sperm production in the seminiferous epithelium. Abnormalities in this process lead to malformations and an inability of sperm to fertilize eggs.
LeeLa D. Robinson, Jon M. Oatley
wiley   +1 more source