Similar Publications

Dihydroorotate dehydrogenase 1B (DHOD1B) is one of several flavoproteins that utilize active half-sites. These enzymes have two flavin cofactors (FAD and FMN) that each interact with a specific reductant/oxidant substrate/product. Electrons gained at one-half-site must be transmitted to the other half-site and iron-sulfur centers between the flavin cofactors serve in this role.

View Article and Find Full Text PDF

Purpose: We reviewed recent advancements in the characterization of intraductal oncocytic papillary neoplasm (IOPN) of the pancreas, with a specific focus on developments in immunohistochemical markers, molecular pathology, and pathogenic mechanisms over the past ten years (2015-2024). Through comprehensive analysis of current literature, we aimed to elucidate the evolving understanding of IOPN's biological behavior and diagnostic features, while identifying potential areas for future research in this distinctive pancreatic neoplasm.

Methods: English-language articles on IOPN were searched from Pubmed from the first report of IOPN of the pancreas in 2015 to 2024.

View Article and Find Full Text PDF

NRAMP family in plants: Contribution to cadmium accumulation.

Biochim Biophys Acta Mol Cell Res

September 2025

University of Warsaw, Faculty of Biology, Institute of Experimental Plant Biology and Biotechnology, Department of Plant Metal Homeostasis, 1 Miecznikowa Str., 02-096, Warszawa, Poland. Electronic address:

The Natural Resistance Associated Macrophage Proteins (NRAMPs) are membrane-targeted transporters with low substrate specificity, that mediate the import (translocation to the cytoplasm) of metals, mainly essential nutrients, e.g. iron (Fe), manganese (Mn), zinc (Zn), cobalt (Co), copper (Cu) or nickel (Ni).

View Article and Find Full Text PDF

Cryo-EM Study and In Vivo Chemical Mapping of the Methanosarcina acetivorans Ribosome and Its Dimerization via a Repurposed Enzyme and Translation Factor.

J Biol Chem

September 2025

Department of Biochemistry and Molecular Biology, Penn State University, University Park, PA, 16802; Center for Structural Biology, Penn State University, University Park, PA 16802; Center for RNA Molecular Biology, Penn State University, University Park, PA 16802. Electronic address:

Despite the overall conservation of ribosomes across all domains of life, differences in their 3D architecture, rRNA sequences, ribosomal protein composition, and translation factor requirements reflect lineage-specific adaptations to environmental niches. In the domain Archaea, structural studies have primarily focused on non-methanogenic thermophiles and halophiles, leaving it unclear whether these represent the broader archaeal domain. Here, we report the cryo-electron microscopy (cryo-EM) structure of the ribosome from Methanosarcina acetivorans, a previously unreported high-resolution structure from a model mesophilic methanogenic archaeon.

View Article and Find Full Text PDF

Succession-driven potential functional shifts in microbial communities in the Tire-plastisphere:Comparison of pristine and scrap tire.

Environ Pollut

September 2025

Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geog

Tire microplastics (TMPs) represent a major contributor to microplastic pollution, posing threats to aquatic ecosystems. As carbon-rich substrates, TMPs influence microbial colonization and ecological functions. This study investigates the impacts of pristine (P-TMPs) and scrap (S-TMPs) TMPs from the same brand on microbial communities within the tire-plastisphere.

View Article and Find Full Text PDF