Results 81 to 90 of about 70,452 (316)

Ácidos siálicos: da compreensão do seu envolvimento em processos biológicos ao desenvolvimento de fármacos contra o agente etiológico da gripe Sialic acids: from the comprehension of their involvement in biological processes to antiinfluenza drug design

open access: yesQuímica Nova, 2005
Sialic acids are nine-carbon carbohydrates that occur widely in nature and occupy the terminal portions of some glycoproteins and glycolipids of cell membranes.
Ângelo de Fátima   +3 more
doaj   +1 more source

Symmetry Scheme for Amino Acid Codons [PDF]

open access: yesPhys.Rev.E65, 021912 (2002), 2003
Group theoretical concepts are invoked in a specific model to explain how only twenty amino acids occur in nature out of a possible sixty four. The methods we use enable us to justify the occurrence of the recently discovered twenty first amino acid selenocysteine, and also enables us to predict the possible existence of two more, as yet undiscovered ...
arxiv   +1 more source

Neuraminidase 1 Exacerbated Glycolytic Dysregulation and Cardiotoxicity by Destabilizing SIRT1 through Interactions with NRF2 and HIF1α

open access: yesAdvanced Science, EarlyView.
NEU1, a key regulator of glycolysis, is markedly upregulated following DOX treatment. This upregulation is attributed to HIF1α’s transcriptional repression, requiring intricate interactions with NRF2. Increased NEU1 facilitates SIRT1 lysosomal degradation, contributing to aberrant glycolytic phenotype and cardiac damage.
Ting Gao   +13 more
wiley   +1 more source

Catch, Cut, or Block? Versatile 4‐N‐Derivatized Sialyl Glycosides for Influenza Virus Neuraminidase Detection and Purification

open access: yesAngewandte Chemie, EarlyView.
Sialyl glycosides containing 4‐N‐derivatized sialic acids synthesized by a highly efficient one‐pot two‐enzyme (OP2E) chemoenzymatic sialylation strategy have been shown to be versatile probes. They can resist sialidase cleavage, be selective substrates by influenza sialidases, or be nanomolar substrate analog‐based inhibitors and affinity ligands ...
Yue Yuan   +6 more
wiley   +2 more sources

Sialic Acid Conjugated Chitosan for the Attenuation of Amyloid-beta Toxicity [PDF]

open access: yes, 2009
Amyloid-beta (Aβ), a 39 to 43 amino acid long peptide, is the primary species identified in senile plaques associated with Alzheimer’s disease (AD) and has been implicated in the neurotoxicity associated with AD.
Dhavale, Dhruva Dilip
core   +2 more sources

Anemonefish use sialic acid metabolism as Trojan horse to avoid giant sea anemone stinging

open access: yesBMC Biology
Background Anemonefish association with sea anemones is a prime example of mutualistic symbiosis. These fish live inside the sea anemone, benefitting from the protection of its toxic nematocysts, and in return, protect the anemone from its own predators.
Natacha Roux   +10 more
doaj   +1 more source

The Sialic Acid Binding Activity of Human Parainfluenza Virus 3 and Mumps Virus Glycoproteins Enhances the Adherence of Group B Streptococci to HEp-2 Cells

open access: yesFrontiers in Cellular and Infection Microbiology, 2018
In the complex microenvironment of the human respiratory tract, different kinds of microorganisms may synergistically interact with each other resulting in viral-bacterial co-infections that are often associated with more severe diseases than the ...
Jie Tong   +6 more
doaj   +1 more source

Deciphering the Metabolic Impact and Clinical Relevance of N‐Glycosylation in Colorectal Cancer through Comprehensive Glycoproteomic Profiling

open access: yesAdvanced Science, EarlyView.
The comprehensive proteomic and N‐glycoproteomic analyses of 45 colorectal cancer tissues with matched normal adjacent tissues identified 7125 intact N‐glycopeptides from 704 glycoproteins. A glycosylation site‐protein function network revealing metabolic dysregulation is constructed and a model differentiating tumors from normal tissues is developed ...
Guobin Liu   +10 more
wiley   +1 more source

Recognition of specific sialoglycan structures by oral streptococci impacts the severity of endocardial infection. [PDF]

open access: yes, 2019
Streptococcus gordonii and Streptococcus sanguinis are primary colonizers of the tooth surface. Although generally non-pathogenic in the oral environment, they are a frequent cause of infective endocarditis.
Barnard, Karen N   +10 more
core   +2 more sources

Structural analysis of SARS-CoV-2 and prediction of the human interactome [PDF]

open access: yesarXiv, 2020
Specific elements of viral genomes regulate interactions within host cells. Here, we calculated the secondary structure content of >2500 coronaviruses and computed >100000 human protein interactions with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
arxiv  

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