1,444 results match your criteria: "University of Chinese Academy of Sciences Beijing[Affiliation]"

The black bream () is an economically important species widely distributed in China, with its geographic populations potentially having undergone differentiations and local adaptations. In this study, we presented a chromosome-level genome assembly of this species and investigated genetic differentiations of its populations that are allopatric (the northern one) and sympatric (the Poyang Lake) to its kin species, the blunt-snout bream (), using whole genome resequencing analysis. The results showed that the genome size of black bream was 1.

View Article and Find Full Text PDF

Deciphering the endogenous SUMO-1 landscape: a novel combinatorial peptide enrichment strategy for global profiling and disease association.

Chem Sci

December 2024

State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian 116023 P. R. China

Small ubiquitin-like modifier (SUMO) plays a pivotal role in diverse cellular processes and is implicated in diseases such as cancer and neurodegenerative disorders. However, large-scale identification of endogenous SUMO-1 faces challenges due to limited enrichment methods and its lower abundance compared to SUMO-2/3. Here we propose a novel combinatorial peptide strategy, combined with anti-adhesive polymer development, to enrich endogenous SUMO-1 modified peptides, revealing a comprehensive SUMOylation landscape.

View Article and Find Full Text PDF

Causal Inference and Annotation of Phosphoproteomics Data in Multi-omics Cancer Studies.

Mol Cell Proteomics

January 2025

Department of Bioinformatics and Biostatistics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address:

Protein phosphorylation plays a crucial role in regulating diverse biological processes. Perturbations in protein phosphorylation are closely associated with downstream pathway dysfunctions, while alterations in protein expression could serve as sensitive indicators of pathological status. However, there are currently few methods that can accurately identify the regulatory links between protein phosphorylation and expression, given issues like reverse causation and confounders.

View Article and Find Full Text PDF

Estuaries are ecologically sensitive areas influenced by river regulation. Knowledge of how marine megabenthos responds to river regulation and artificial flooding events remains limited. The study aims to provide a comprehensive understanding of the impacts of river regulation on marine megabenthic fauna.

View Article and Find Full Text PDF

Low-temperature oxidation of ethanol to acetaldehyde over Mo-based catalysts.

RSC Adv

January 2025

State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China

The research and development of the green synthesis route of chemicals has become the focus of research in academia and industry. At present, the highly efficient oxidation of ethanol to acetaldehyde over non-precious metal catalysts under mild conditions is most promising, but remains a big challenge. Herein, the Mo-Sn oxide catalyst was designed to successfully realize low-temperature oxidation of ethanol to acetaldehyde, achieving an acetaldehyde selectivity of 89.

View Article and Find Full Text PDF

Molecular engineering of supramolecular polymer adhesive with confined water and a single crown ether.

Chem Sci

January 2025

Sino-German Joint Research Lab for Space Biomaterials and Translational Technology, Synergetic Innovation Centre of Biological Optoelectronics and Healthcare Engineering, School of Life Sciences, Northwestern Polytechnical University Xi'an Shaanxi 710072 P. R. China

Here, we report a water-induced supramolecular polymer adhesive formed from confined water and an intrinsically amphiphilic macrocyclic self-assembly in a nanophase-separated structure. The selenium-containing crown ether macrocycle, featuring a strong hydrophilic hydrogen-bond receptor (selenoxide) and a synergistic hydrophobic selenium-substituted crown core, confines water within a segregated, interdigitated architecture. While water molecules typically freeze around 0 °C, the confined water in this supramolecular polymer remains in a liquid-like state down to -80 °C.

View Article and Find Full Text PDF

Glycosylphosphatidylinositol (GPI) anchoring is one of the conserved posttranslational modifications in eukaryotes that attach proteins to the plasma membrane. In fungi, in addition to plasma membrane GPI-anchored proteins (GPI-APs), some GPI-APs are specifically released from the cell membrane, secreted into the cell wall, and covalently linked to cell wall glucans as GPI-anchored cell wall proteins (GPI-CWPs). However, it remains unclear how fungal cells specifically release GPI-CWPs from their membranes.

View Article and Find Full Text PDF

We have developed the GReedy Accumulated strategy for Protein Engineering (GRAPE) to improve enzyme stability across various applications, combining advanced computational methods with a unique clustering and greedy accumulation approach to efficiently explore epistatic effects with minimal experimental effort. To make this strategy accessible to nonexperts, we introduced GRAPE-WEB, an automated, user-friendly web server that allows the design, inspection, and combination of stabilizing mutations without requiring extensive bioinformatics knowledge. GRAPE-WEB's robust performance and accessibility provide a comprehensive and adaptable approach to protein thermostability design, suitable for both newcomers and experienced practitioners in the field.

View Article and Find Full Text PDF

Twenty-one new species of jumping spiders from five provinces of South China are described: (♂), (♂♀), (♂♀), (♂♀), (♂♀), (♂), (♂♀), (♂♀), (♀), (♂♀), (♂♀), (♂♀), (♂♀), (♂♀), (♂♀), (♂♀), (♂), (♂♀), (♂♀), (♂♀), and (♂♀). Prószyński, 2016, is proposed as a junior synonym of Prószyński, 2016. Three new combinations are proposed: (Andreeva, Hęciak & Prószyński, 1984), and (Wanless, 1984), transferred from , and (Peng, Gong & Kim, 2000), transferred from Thorell, 1869.

View Article and Find Full Text PDF

Aromatic-aromatic interactions drive fold switch of GA95 and GB95 with three residue difference.

Chem Sci

January 2025

Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan National Laboratory for Optoelectronics, Wuhan Institute of Physics and Mathematics, Innovation Academy of Precision Measurement, Chinese Academy of Sciences Wuhan 430071 China

Proteins typically adopt a single fold to carry out their function, but metamorphic proteins, with multiple folding states, defy this norm. Deciphering the mechanism of conformational interconversion of metamorphic proteins is challenging. Herein, we employed nuclear magnetic resonance (NMR), circular dichroism (CD), and all-atom molecular dynamics (MD) simulations to elucidate the mechanism of fold switching in proteins GA95 and GB95, which share 95% sequence homology.

View Article and Find Full Text PDF

A cation exchange (CE) reaction offers a remarkable opportunity to create versatile metal sulfide nanocrystals (NCs) with arbitrary complexity in composition, structure, and functionality. The concept of regioselectivity has been discovered and developed to build the target heterostructures through CE reactions, yet a general principle of regioselectivity remains unclear. In this work, we establish connections between experimental results and theoretical insights to elucidate the determinants of regioselectivity using designed aliovalent CE reactions on a two-dimensional template.

View Article and Find Full Text PDF

Immunomodulation has emerged as a promising strategy for promoting bone regeneration. However, designing osteoimmunomodulatory biomaterial that can respond to mechanical stress in the unique microenvironment of alveolar bone under continuous occlusal stress remains a significant challenge. Herein, a wireless piezoelectric stimulation system, namely, piezoelectric hydrogel incorporating BaTiO nanoparticles (BTO NPs), is successfully developed to generate piezoelectric potentials for modulating macrophage reprogramming.

View Article and Find Full Text PDF

Over the last two decades, lipid nanoparticles (LNPs) have evolved as an effective biocompatible and biodegradable RNA delivery platform in the fields of nanomedicine, biotechnology, and drug delivery. They are novel bionanomaterials that can be used to encapsulate a wide range of biomolecules, such as mRNA, as demonstrated by the current successes of COVID-19 mRNA vaccines. Therefore, it is important to provide a perspective on LNPs for RNA delivery, which further offers useful guidance for researchers who want to work in the RNA-based LNP field.

View Article and Find Full Text PDF

Agonists of the stimulator of interferon genes (STING) pathway are increasingly being recognized as a promising new approach in the treatment of cancer. Although progress in clinical trials for STING agonists in antitumor applications has been slow, there is still an urgent need for developing new potent STING agonists with versatile potential applications. Herein, we developed and identified a non-nucleotide STING agonist called DW18343.

View Article and Find Full Text PDF

First record of (Hemiptera, Scytinopteroidea, Scytinopteridae) from the Middle Triassic Tongchuan Entomofauna of China.

Zookeys

November 2024

State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences Nanjing China.

A new scytinopterid species, , is established based on a tegmen collected from the Middle Triassic Tongchuan Formation in Shaanxi Province, NW China. The new species can be easily separated from its congeners by the narrow tegminal apex, less curved terminal branches of stems RP, M and CuA and crossvein - connected to long vein M. This discovery represents the first record of from the Tongchuan Formation in China and suggests that the genus spread much more widely from Gondwana to northern Pangea in the Middle Triassic.

View Article and Find Full Text PDF

Background: Red blood cell (RBC) enucleation is a crucial step in the process of erythropoiesis. By removing the nucleus, RBCs gain greater flexibility, enabling them to traverse narrow capillaries with ease, thereby enhancing the efficiency of oxygen and carbon dioxide transport. This transformation underscores the intricate balance between cellular structure and function essential for maintaining homeostasis.

View Article and Find Full Text PDF
Article Synopsis
  • van der Waals BiOCl semiconductors are recognized for their low-cost, non-toxic qualities and strong photochemical catalytic abilities, but their wide band gap limits their use of visible light.
  • The study investigates high-pressure band-gap engineering to enhance BiOCl's electronic structure, utilizing techniques like UV-vis absorption spectroscopy, Raman spectroscopy, and XRD to observe effects of pressure on the material.
  • Results show that applying pressure decreases the band gap from 3.44 eV to 2.81 eV, revealing a phase transition that alters the material's compressibility properties, suggesting a method to improve photocatalytic efficiency.
View Article and Find Full Text PDF

Forensic facial professionals have been shown in previous studies to identify people from frontal face images more accurately than untrained participants when given 30 s per face pair. We tested whether this superiority holds in more challenging conditions. Two groups of forensic facial professionals (examiners, reviewers) and untrained participants were tested in three lab-based tasks: other-race face identification, disguised face identification, and face memory.

View Article and Find Full Text PDF

Evolutionary Genomics Provides Insights Into Endangerment and Conservation of a Wild Apple Tree Species, .

Evol Appl

December 2024

State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi China.

Understanding the evolutionary history of a species is essential for effective conservation management. , a relict broad-leaf forest tree found in arid Central Asian mountains, has a narrow and fragmented distribution and is classified as an endangered species in China. This species is considered one of the ancestors of the domesticated apple trees.

View Article and Find Full Text PDF

Grassland carrying capacity is an indicator for measuring the stability of grassland ecosystems and can provide a basis for formulating regional sustainable grazing strategies. However, most previous studies on this have only considered annual fluctuations, but seasonal changes were ignored. In this study, the herbage yield and nutrient value of two grassland types in Yellow River Source Park (YRSP) were measured by sampling point survey method in four seasons, and the seasonal and annual grassland carrying capacity, carrying numbers of standard sheep unit (SU) were estimated based on the dry matter (DM) content, crude protein, and metabolic energy of herbage.

View Article and Find Full Text PDF

Unusual Thermo-Enhanced Second Harmonic Generation in Organic Configurationally-Locked Polyene Crystals.

Adv Sci (Weinh)

January 2025

State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.

To modulate nonlinear optical (NLO) effects of crystalline material holds great application potential in the photoelectronic and optical fields. Organic configurationally-locked polyene represents an exciting NLO family with large second harmonic generation (SHG) effects, whereas it is a huge blank to switch and modulate their NLO property through external stimuli. For the first time, here present unusual thermo-enhanced SHG activities are presented in a polyene-based NLO compound, 2-{3-[2-(4-pyrrolidinphenyl)vinyl]-5,5-dimethylcyclohex-2-enylidene}malononitrile (1), giving a record-high magnitude of SHG enhancement up to ≈170% during its isomorphic phase transition.

View Article and Find Full Text PDF

Nitrogen regulation in polyester-based carbons and adsorption of gaseous benzene and ethyl acetate.

RSC Adv

November 2024

National Engineering Laboratory for VOCs Pollution Control Material & Technology, Research Center for Environmental Material and Pollution Control Technology, University of Chinese Academy of Sciences Beijing 101408 China

Nitrogen doping effectively improves the adsorption properties of activated carbons towards volatile organic compounds (VOCs); however, the role of nitrogen elements with various chemical valence states need further evaluation. In this work, waste polyester fabrics were used as a low-cost source to prepare activated carbon, and melamine, pyridine, dimethylamine, and pyrrole were selected as nitrogen sources to compare their nitrogen-doping ability. The adsorption of low-concentration benzene and ethyl acetate on the resultant carbons and the effects of nitrogen, including its valence states and contents, were investigated.

View Article and Find Full Text PDF

An ultrasensitive 2,4,6-trinitrophenol nanofluidic sensor inspired by olfactory sensory neurons in sniffer dogs.

Chem Sci

November 2024

CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 P. R. China

Article Synopsis
  • Explosives, particularly 2,4,6-trinitrophenol (TNP), pose serious risks to global security and environmental health, highlighting the need for effective detection methods.
  • A new nanofluidic sensor inspired by sniffer dogs uses UiO-66-NH layers to detect TNP by measuring changes in ionic current when TNP is captured.
  • This sensor can detect TNP concentrations as low as 6.5 × 10^-6 g mL, surpassing existing technologies, and may enhance security in various fields such as military, homeland security, and environmental monitoring.
View Article and Find Full Text PDF

The design and synthesis of nonlinear optical (NLO) materials with a strong second harmonic generation (SHG) effect and wide band gap is a long-standing challenge because of their inverse relationship, especially for metal tellurites. We found that a lower degree of polymerization of tellurite groups corresponds to a higher proportion of non-centrosymmetric (NCS) structures formed. Based on Pauling's rule #4, introduction of cations (Al/Ga) with higher coordination numbers and lower valence states than Te into the reaction system decreases the connectivity among tellurite groups.

View Article and Find Full Text PDF

Deep learning enabled ultra-high quality NMR chemical shift resolved spectra.

Chem Sci

December 2024

Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University Xiamen Fujian 361005 China

High quality chemical shift resolved spectra have long been pursued in nuclear magnetic resonance (NMR). In order to obtain chemical shift information with high resolution and sensitivity, a neural network named spin echo to obtain chemical shifts network (SE2CSNet) is developed to process the NMR data acquired by the spin echo pulse sequence. Through detecting the change of phase in the spin echo spectra, SE2CSNet can accurately detect the chemical shift position of spectral signals.

View Article and Find Full Text PDF