98%
921
2 minutes
20
A syn-selective synthesis of β-branched α-amino acids has been developed based on the alkylation of glycine imine esters with secondary sulfonates. The potassium counterion for the enolate, the solvent, and the leaving group on the electrophile were key levers to maximize the diasteroselectivity of the alkylation. The optimized conditions enabled a straightforward preparation of a number of β-branched α-amino acids that can be challenging to obtain.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1021/acs.orglett.5b02448 | DOI Listing |
Autophagy
September 2025
Institute of Stem Cell and Regenerative Biology, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, P. R. China.
The metabolic co-dependence of the oocyte and surrounding granulosa cells is crucial for oocyte developmental competence. Previous research has shown that serine-glycine and its key downstream metabolites are significantly involved in the process of oocyte maturation. However, the mechanism of serine metabolism and its influence on oocyte maturation remain unclear.
View Article and Find Full Text PDFAutophagy
May 2025
Department of Rheumatology and Immunology, State Key Laboratory of Virology and Biosafety, Zhongnan Hospital, Wuhan University, Wuhan, China.
STING1/MITA not only induces innate immune responses but also triggers macroautophagy/autophagy to selectively degrade signaling molecules. However, the molecular mechanisms regulating STING1-mediated selective autophagy remain unclear. Here, we first report that ATP2A2 directly interacts with STING1, regulating STING1-mediated innate immune response by modulating its polymerization and trafficking, thereby inhibiting DNA virus infection.
View Article and Find Full Text PDFAutophagy
April 2025
Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P.R. China.
RETREG1/FAM134B is known for its role as a reticulophagy receptor. Our previous study established that RETREG1 is upregulated in hepatocellular carcinoma (HCC) and contributes to disease progression by activating the AKT signaling pathway. However, the specific mechanisms underlying the elevated expression of RETREG1 in HCC remain unclear.
View Article and Find Full Text PDFAm J Hum Genet
November 2024
Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Section of Neurology and Developmental Neuroscience, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA. Electronic address: pe
Biochem Biophys Res Commun
December 2024
Immunology Laboratory, Fish Health Management Division (FHMD), ICAR-Central Institute of Freshwater Aquaculture (ICAR-CIFA), Kausalyaganga, Bhubaneswar, Odisha, 751002, India. Electronic address:
TLR (Toll-like receptor)-21 is a non-mammalian TLR and exhibits a unique function within the innate immune systems of fishes, birds, and amphibians. Despite its important role as PRR (pattern recognition receptor), research on TLR21 in many fish species, as well as in rohu (Labeo rohita), remains relatively limited. This article describes the molecular cloning of LrTLR21 (TLR21 in L.
View Article and Find Full Text PDF