🧬 biology

Intergenic small open reading frames in the Antarctic psychrotolerant bacterium Flavobacterium azizsancarii: a genus-wide composition-matched null analysis

This study demonstrates that the Antarctic bacterium *Flavobacterium azizsancarii* and the broader *Flavobacterium* genus exhibit a statistically significant, composition-adjusted excess of intergenic small open reading frames (sORFs) compared to null models, suggesting a genus-wide reservoir of potential sORFs rather than a strain-specific adaptation, though their functional translation and cold-adaptive roles remain unconfirmed.

Cem Boyraz2026-07-21
🧬 biology

Optimization of RNaseRs Digestion and Application for a Comparative Analysis of its Performance Across Vendors

This study evaluates the performance variations of RNaseR enzymes from four different vendors on RNA vaccine drug substance, demonstrating that digestion efficiency is significantly influenced by vendor source, incubation conditions, and buffer composition, with optimized formulations notably enhancing linear RNA degradation.

Pankaj Dwivedi, Faith Osinaga, Kamalika Samanta, Yvonne Shieh, Ravikiran Yerabolu, Nichole Lareau, Richard Rustandi, Mat (…)2026-07-21
🧬 biology

Recurrent recombination and insertion–deletion events shape the genome-wide evolutionary history of the Coronaviridae family

This study reveals that frequent recombination and insertion–deletion events across the Coronaviridae family have significantly shaped its genomic organization, diversification, and phylogeny, while simultaneously complicating efforts to forecast the emergence of novel pathogenic variants.

Luis Daniel González-Vázquez, David Ferreiro, Filipe Pereira, Miguel Arenas2026-07-21
🧬 biology

What Makes a Virtual Cell a World Model? Three Gaps, Three Experiments, and a Roadmap

This paper proposes a structured framework for "virtual cell world models" (VCWMs) to address critical gaps between current capabilities and true world modeling by defining formal requirements, presenting empirical evidence of these shortcomings through three experiments, and outlining a staged roadmap with diagnostic capability ladders for developing multiscale, interactive cellular simulators.

Chang Yu, Jingbo Zhou, Cheng Tan, Stan Z. Li, Xiaodong Liu, Xiaoming Zhang, Zhaoxiang Zhang, Zhen Lei, Zhongqi Wang2026-07-21
🧬 biology

The Encoding Gauge of Fermionic Variational Quantum Algorithms: Classical Simulability is Encoding-Relative, Trainability is Invariant

This paper establishes that while the classical simulability of fermionic variational quantum algorithms is encoding-dependent and can be optimized via gauge transformations, their trainability is strictly encoding-invariant, implying that genuine quantum advantage must rely on encoding-independent resources like Lie algebra dimension and non-stabilizerness rather than encoding-specific metrics like Pauli weight.

S. M. Yousuf Iqbal Tomal, Abdullah Al Shafin2026-07-21
🧬 biology

Discovery of Bioactive Triterpenoid Saponins and Antioxidant-Rich Tissues in the Endemic Cyclamen adzharicum from Adjara (Georgia)

This study documents the high diversity and endemism of Adjara's ephemeroid flora, identifies *Cyclamen adzharicum* as a key medicinal species, and reveals its leaves as a superior source of antioxidant-rich triterpenoid saponins compared to its tubers, thereby supporting conservation efforts and future pharmacological research.

Natela Varshanidze, Aleko Kalandia, Maia Vanidze, Nazi Turmanidze, Nana Zarnadze, Ketevan Dolidze, Inga Diasamidze, Eter (…)2026-07-21