Results 71 to 80 of about 81,861 (342)

PhyloTransformer: A Discriminative Model for Mutation Prediction Based on a Multi-head Self-attention Mechanism [PDF]

open access: yesarXiv, 2021
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused an ongoing pandemic infecting 219 million people as of 10/19/21, with a 3.6% mortality rate. Natural selection can generate favorable mutations with improved fitness advantages; however, the identified coronaviruses may be the tip of the iceberg, and potentially more fatal variants
arxiv  

The Induction and Characterization of a Potential Rough‐Type Brucella Vaccine Candidate Strain RA343, and Its Safety, Protective Efficacy in Mouse and Guinea Pig Models

open access: yesAnimal Research and One Health, EarlyView.
Brucellosis is a zoonotic disease caused by Brucella spp. which seriously jeopardize the health and safety of animals and human beings. In this study, a genetically stable Brucella rough RA343 strain was obtained by cross‐induction. The virulence and protective efficacy of RA343 were subsequently assessed. Overall, the RA343 strain is a promising novel
Linjiao Li   +12 more
wiley   +1 more source

Glycosylation with Glycosyl p-Bromophenyl Phthalates as New Efficient Glycosyl Donors

open access: yesBulletin of the Korean Chemical Society, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Soon Young Kwon   +3 more
openaire   +4 more sources

Synthesis of the pentasaccharide repeating unit of the O-antigen of E. coli O117:K98:H4

open access: yesBeilstein Journal of Organic Chemistry, 2014
The pentasaccharide repeating unit of the O-antigen of E. coli O117:K98:H4 strain has been synthesized using a combination of sequential glycosylations and [3 + 2] block synthetic strategy from the suitably protected monosaccharide intermediates ...
Pintu Kumar Mandal
doaj   +1 more source

Total syntheses of conformationally-locked difluorinated pentopyranose analogues and a pentopyranosyl phosphate mimetic [PDF]

open access: yes, 2007
Trifluoroethanol has been elaborated, via a telescoped sequence involving a metalated difluoroenol, a difluoroallylic alcohol, [2,3]-Wittig rearrangement, and ultimately an RCM reaction and requiring minimal intermediate purification, to a number of ...
Miles, Jonathan A. L.   +4 more
core   +1 more source

Aberrant glycosylation of IgG in children with active lupus nephritis alters podocyte metabolism and causes podocyte injury

open access: yesArthritis &Rheumatology, Accepted Article.
Background Podocytes are integral to the maintenance of the glomerular filtration barrier. Their injury results in proteinuria and disease progression in lupus nephritis (LN). Aberrant IgG glycosylation drives podocyte injury in LN and leads to cytoskeletal rearrangement, motility changes and decreased nephrin production.
Rhea Bhargava   +9 more
wiley   +1 more source

Diversification of Glycosyl Compounds via Glycosyl Radicals

open access: yesAngewandte Chemie, 2023
AbstractGlycosyl radical functionalization is one of the central topics in synthetic carbohydrate chemistry. Recent advances in metal‐catalyzed cross‐coupling chemistry and metallaphotoredox catalysis provided powerful platforms for glycosyl radical diversification.
Yi Jiang   +3 more
openaire   +2 more sources

Genetic Locus and Structural Characterization of the Biochemical Defect in the O-Antigenic Polysaccharide of the Symbiotically Deficient \u3cem\u3eRhizobium etli\u3c/em\u3e Mutant, CE166 [PDF]

open access: yes, 2003
The O-antigen polysaccharide (OPS) of Rhizobium etli CE3 lipopolysaccharide (LPS) is linked to the core oligosaccharide via an N-acetylquinovosaminosyl (QuiNAc) residue.
Box, Jodie M.   +3 more
core   +1 more source

XTHs from Fragaria vesca: Genomic structure and transcriptomic analysis in ripening fruit and other tissues [PDF]

open access: yes, 2017
Indexación: Scopus.Background: Fragaria vesca or 'woodland strawberry' has emerged as an attractive model for the study of ripening of non-climacteric fruit. It has several advantages, such as its small genome and its diploidy. The recent availability of
Davis, T.M.   +5 more
core   +5 more sources

Advances in Metal‐Free Transamidation: A Sustainable Approach to Amide Bond Formation

open access: yesChemistry – An Asian Journal, EarlyView.
This review highlights the recent developments of transamidation reactions under metal‐free reaction conditions. Various amines including weak nucleophilic amines such as aromatic amines have been used to achieve the transamidation reactions under mild and relatively green reaction conditions. Abstract The amide functionalities are a crucial functional
Niharan Sivaraj   +2 more
wiley   +1 more source

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