Results 21 to 30 of about 81,861 (342)

Phenotypic and functional characterization of a mouse model of targeted Pig-a deletion in hematopoietic cells

open access: yesHaematologica, 2010
Background Somatic mutation in the X-linked phosphatidylinositol glycan class A gene (PIG-A) causes glycosyl phosphatidylinositol anchor deficiency in human patients with paroxysmal nocturnal hemoglobinuria.Design and Methods We produced an animal model ...
Valeria Visconte   +6 more
doaj   +1 more source

A Concise Synthesis of a BODIPY-Labeled Tetrasaccharide Related to the Antitumor PI-88

open access: yesMolecules, 2021
A convergent synthetic route to a tetrasaccharide related to PI-88, which allows the incorporation of a fluorescent BODIPY-label at the reducing-end, has been developed.
Juan Ventura   +6 more
doaj   +1 more source

Identification of C-glycosyl flavones by high performance liquid chromatography electrospray ionization mass spectrometry and quantification of five main C-glycosyl flavones in Flickingeria fimbriata

open access: yesBMC Chemistry, 2019
Flickingeria fimbriata is commonly applied in China as a traditional Chinese medicine (TCM), however the quality control of it is incomplete. In this work, we aim to identify and quantify the structures of C-glycosyl flavones in F. fimbriata.
Yawen Wang   +7 more
doaj   +1 more source

Ridge Regression Estimated Linear Probability Model Predictions of O-glycosylation in Proteins with Structural and Sequence Data [PDF]

open access: yesBMC Molecular and Cell Biology 2019, 2018
The likelihood of O-GlcNAc glycosylation in human proteins is predicted using the ridge regression estimated linear probability model (LPM). To achieve this, sequences from three similar post-translational modifications (PTMs) of proteins occurring at, or very near, the S or T site are analyzed: N-glycosylation, O-mucin type (O-GalNAc) glycosylation ...
arxiv   +1 more source

Anomeric O-Functionalization of Carbohydrates for Chemical Conjugation to Vaccine Constructs. [PDF]

open access: yes, 2018
Carbohydrates mediate a wide range of biological interactions, and understanding these processes benefits the development of new therapeutics. Isolating sufficient quantities of glycoconjugates from biological samples remains a significant challenge ...
Gervay-Hague, Jacquelyn   +2 more
core   +1 more source

Synthesis and glycosidation of building blocks of D-altrosamine

open access: yesFrontiers in Chemistry, 2022
Presented herein is a streamlined synthesis of building blocks of a rare sugar D-altrosamine. Also investigated was the glycosylation of different glycosyl acceptors with differentially protected altrosamine donors.
Mariya Novakova   +4 more
doaj   +1 more source

Catalysis by hen egg-white lysozyme proceeds via a covalent intermediate [PDF]

open access: yes, 2001
Hen egg-white lysozyme (HEWL) was the first enzyme to have its three-dimensional structure determined by X-ray diffraction techniques(1). A catalytic mechanism, featuring a long-lived oxo-carbenium-ion intermediate, was proposed on the basis of model ...
A Federov   +28 more
core   +1 more source

Appel-reagent-mediated transformation of glycosyl hemiacetal derivatives into thioglycosides and glycosyl thiols

open access: yesBeilstein Journal of Organic Chemistry, 2013
A series of glycosyl hemiacetal derivatives have been transformed into thioglycosides and glycosyl thiols in a one-pot two-step reaction sequence mediated by Appel reagent (carbon tetrabromide and triphenylphosphine).
Tamashree Ghosh   +2 more
doaj   +1 more source

Centralized Modularity of N-Linked Glycosylation Pathways in Mammalian Cells [PDF]

open access: yesPLoS ONE 4, e7317 (2009), 2009
Glycosylation is a highly complex process to produce a diverse repertoire of cellular glycans that are attached to proteins and lipids. Glycans are involved in fundamental biological processes, including protein folding and clearance, cell proliferation and apoptosis, development, immune responses, and pathogenesis. One of the major types of glycans, N-
arxiv   +1 more source

A new synthetic access to 2-N-(glycosyl)thiosemicarbazides from 3-N-(glycosyl)oxadiazolinethiones and the regioselectivity of the glycosylation of their oxadiazolinethione precursors

open access: yesBeilstein Journal of Organic Chemistry, 2013
Glycosylations of 5-(1H-indol-2-yl)-1,3,4-oxadiazoline-2(3H)-thione delivered various degrees of S- and/or N-glycosides depending on the reaction conditions.
El Sayed H. El Ashry   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy