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We report a one-pot total synthesis of the transcription factor Max in seven consecutive steps, starting from three peptide segments and employing native chemical ligation. The developed synthesis facilitates the generation of homogeneous Max analogues bearing defined transformations within hours in excellent yields, enabling us to probe the effect of the crosstalk between Ser-phosphorylation and Lys-acetylation on the Max function. Our findings reveal that these post-translational modifications significantly inhibit DNA-binding activity, potentially by disrupting essential Max-DNA interactions.
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http://dx.doi.org/10.1021/acs.orglett.5c00978 | DOI Listing |
Org Lett
September 2025
State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
A concise enantioselective total synthesis of (+)-lucidumone, a caged polycyclic meroterpenoid with a bicyclo[2.2.2]octane skeleton, was accomplished in 10 steps (LLS) starting from commercially available 2-cyclohexen-1-one.
View Article and Find Full Text PDFA cerium vanadate-bismuth vanadate (CV-BV) composite is developed to facilitate dual functionality in photocatalytic hydrogen generation and degradation and is synthesized a one pot hydrothermal method. Despite its strong pollutant degradation capability, BV remains ineffective for hydrogen evolution, whereas CV, with favourable band position, actively participates in hydrogen evolution. BV shows a pollutant degradation rate of 90% in 1 hour but does not produce hydrogen, while CV exhibits a hydrogen evolution rate of 590.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
We report the first highly enantioselective Oshima-Utimoto reaction, which is combined with subsequent one-pot oxidation to construct synthetically important enantioenriched β-substituted γ-lactones with high enantioselectivity (up to 97% ee) from two chemical feedstocks (allylic alcohols and vinyl ethers). Significantly, the absolute configuration of chiral β-substituted γ-lactones can be precisely controlled by strategically selecting - or -allylic alcohol substrates, thereby providing an alternative access to both enantiomers of chiral γ-lactones. Capitalizing on this catalytic asymmetric transformation as a key step, we have achieved a concise and stereodivergent total synthesis of the natural aryltetralin lignan drug (-)-podophyllotoxin and its 11 structural congeners in only 6-8 steps from commercial materials through the combination of chemical and chemoenzymatic strategies.
View Article and Find Full Text PDFAnal Chem
September 2025
Research Center for Nanosensor Molecular Diagnostic & Treatment Technology, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P. R. China.
Current one-pot CRISPR diagnostics necessitate meticulous control of nucleic acid hybridization parameters or extensive modification of CRISPR components to achieve complete enzymatic silencing, a fundamental bottleneck limiting their robustness and generalizability. Here, we resolve this challenge through dynamic crRNA reconfiguration, a paradigm-shifting strategy that exploits the intrinsic structural duality of CRISPR RNA. We present CONVERT (CRISPR One-Pot Nucleic acid detection Via Engineered crRNA Reconfiguration Technology), a universal platform where nontarget intact crRNA acts as a universal suppressor, achieving complete Cas12a inhibition during RPA (recombinase polymerase amplification) by irreversible enzyme sequestration.
View Article and Find Full Text PDFCarbohydr Polym
November 2025
Guangdong Provincial Key Laboratory of Intelligent Food Manufacturing, College of Food Science and Engineering, Foshan University, Foshan 528225, Guangdong, China; School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China. Electronic address: xa
Bio-based materials are emerging as promising sustainable alternatives to conventional plastics; however, their application is frequently constrained by inadequate mechanical strength, hydrophobicity, and antimicrobial efficacy. In this study, a multifunctional packaging film was successfully developed by integrating N-isopropylacrylamide (NIPA), alkyl ketene dimer (AKD), and cinnamaldehyde (CIN) into starch (ST)/chitosan (CS) composites through a one-pot synthesis approach. The incorporation of these additives, particularly the synergistic interaction of CIN and the polysaccharide matrix, significantly enhanced the mechanical strength, UV-visible light resistance, and barrier properties of the film.
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