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Role of Non-Canonical Stacking Interactions of Heterocyclic RNA Bases in Ribosome Function.
Biochemistry (Mosc)
December 2024
Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia.
Identification and analysis of repetitive elements (motifs) in DNA, RNA, and protein macromolecules is an important step in studying structure and functions of these biopolymers. Functional role of NA-BSE (non-adjacent base-stacking element, a widespread tertiary structure motif in various RNAs) in RNA-RNA interactions at various stages of the ribosome function during translation has been investigated in this work. Motifs of this type have been described to date that are reversibly formed during mRNA decoding, moving of the ribosome subunits relative to each other, and moving mRNA and tRNA along the ribosome during translocation.
View Article and Find Full Text PDFExtremophilic hemoglobins: The structure of Shewanella benthica truncated hemoglobin N.
J Biol Chem
January 2025
T.C. Jenkins Department of Biophysics, Johns Hopkins University, Baltimore, Maryland, 21218, USA. Electronic address:
Truncated hemoglobins (TrHbs) have an ancient origin and are widely distributed in microorganisms where they often serve roles other than dioxygen transport and storage. In extremophiles, these small heme proteins must have features that secure function under challenging conditions: at minimum, they must be folded, retain the heme group, allow substrates to access the heme cavity, and maintain their quaternary structure if present and essential. The genome of the obligate psychropiezophile Shewanella benthica strain KT99 harbors a gene for a TrHb belonging to a little-studied clade of globins (subgroup 2 of group N).
View Article and Find Full Text PDFCalcium-binding protein CALU-1 is essential for proper collagen formation in Caenorhabditis elegans.
Cell Mol Life Sci
January 2025
Department of Infection Biology, Wonkwang University School of Medicine, Iksan, 54538, Republic of Korea.
Collagen, a major component of the extracellular matrix, is crucial for the structural integrity of the Caenorhabditis elegans cuticle. While several proteins involved in collagen biosynthesis have been identified, the complete regulatory network remains unclear. This study investigates the role of CALU-1, an ER-resident calcium-binding protein, in cuticle collagen formation and maintenance.
View Article and Find Full Text PDFEffect of Fusion to the LTB Carrier Protein on Coronavirus Spike Protein Vaccine Candidates Produced in Maize.
Viruses
December 2024
Applied Biotechnology Institute, California Polytechnic Tech Park, San Luis Obispo, CA 93407, USA.
Coronaviruses continue to disrupt health and economic productivity worldwide. Porcine epidemic diarrhea virus (PEDV) is a devastating swine disease and SARS-CoV-2 is the latest coronavirus to infect the human population. Both viruses display a similar spike protein on the surface that is a target of vaccine development.
View Article and Find Full Text PDFHemoglobin Variants as Targets for Stabilizing Drugs.
Molecules
January 2025
Faculty of Science, Pavol Jozef Šafárik University in Košice, Park Angelinum 19, 040 01 Košice, Slovakia.
Hemoglobin is an oxygen-transport protein in red blood cells that interacts with multiple ligands, e.g., oxygen, carbon dioxide, carbon monoxide, and nitric oxide.
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