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[Vacuum ultraviolet laser dissociation and proteomic analysis of halogenated peptides].
Se Pu
February 2025
CAS Key Laboratory of Separation Sciences for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
Chemical modifications are widely used in research fields such as quantitative proteomics and interaction analyses. Chemical-modification targets can be roughly divided into four categories, including those that integrate isotope labels for quantification purposes, probe the structures of proteins through covalent labeling or cross-linking, incorporate labels to improve the ionization or dissociation of characteristic peptides in complex mixtures, and affinity-enrich various poorly abundant protein translational modifications (PTMs). A chemical modification reaction needs to be simple and efficient for use in proteomics analysis, and should be performed without any complicated process for preparing the labeling reagent.
View Article and Find Full Text PDFUnraveling the role of E. coli and calf intestinal alkaline phosphatase in calcium phosphate synthesis.
Enzyme Microb Technol
January 2025
Dpt. Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
The enzyme-catalyzed synthesis of calcium phosphate is a promising method for producing calcium-based nanomaterials for biomedical applications. The purpose of this work was to determine the type of phosphate that forms when alkaline phosphatase catalyzes the reaction, and to identify the role of natural biopolymers in calcium phosphate formation. In this research, we analyzed calcium phosphates that were synthesized in the presence of alkaline phosphatase from either E.
View Article and Find Full Text PDFComparative evaluation of ACetic - MEthanol high salt dissociation approach for single-cell transcriptomics of frozen human tissues.
Front Cell Dev Biol
January 2025
Endocrinology Research Centre, Institute of Personalized Medicine, Moscow, Russia.
Current dissociation methods for solid tissues in scRNA-seq studies do not guarantee intact single-cell isolation, especially for sensitive and complex human endocrine tissues. Most studies rely on enzymatic dissociation of fresh samples or nuclei isolation from frozen samples. Dissociating whole intact cells from fresh-frozen samples, commonly collected by biobanks, remains a challenge.
View Article and Find Full Text PDFBioactive nanocellulose films by incorporation of enzymatically polymerized lignin nanoparticles.
Int J Biol Macromol
January 2025
Institute of Forest Science (ICIFOR-INIA), CSIC, Ctra. de la Coruña, km 7,5, 28040, Madrid, Spain.
In the search of new bioactive and biobased films, the use of lignin nanoparticles (LNP) and cellulose nanofibers (CNF) has gained potential relevance in the last years. In this context, an enzymatic and environmentally friendly pretreatment with laccases has been proposed in this work to modify the properties of the developed cellulose-lignin nanocomposite films. Thus, the laccase treatment successfully polymerized kraft lignin as indicated by the increase in weight average molecular weight (from 3621 to 5681 Da) and the reduction in phenol content (from 552 to 324 mg GAE/g lignin).
View Article and Find Full Text PDFUnleashing the innate ability of Escherichia coli to produce D-Allose.
Metab Eng
January 2025
Biochemistry, Molecular, Cellular, and Developmental Graduate Group, University of California, Davis, Davis, CA, 95616, USA; Department of Chemistry, University of California, Davis, Davis, CA, 95616, USA. Electronic address:
D-allose is a rare monosaccharide, found naturally in low abundances. Due to its low-calorie profile and similar taste to sucrose, D-allose has the potential to become an ideal sugar substitute. D-allose also displays unique properties and health benefits that can be applied to various fields, including food and medicine.
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