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Wheat Bread Supplemented with Egg Albumin: Structural Features, and In Vitro Starch and Protein Digestibility.
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Departamento de Ingeniería de Procesos e Hidráulica, Universidad Autónoma Metropolitana- Iztapalapa, Apartado Postal 55-534, Iztapalapa, CDMX, 09340, Mexico.
This study aimed to explore the effects of egg albumin protein addition (5, 15 and 20 g/100 g db) on the textural characteristics, as well as in the in vitro digestibility of protein and starch of wheat bread. Egg albumin addition resulted in smoother bread loaves as compared to traditional wheat bread. Reduced hardness and increased cohesiveness were correlated to the protein secondary structure, mainly with the content of β-sheets.
View Article and Find Full Text PDFDouble-stranded RNA orbivirus disrupts the DNA-sensing cGAS-sting axis to prevent type I IFN induction.
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Centro de Investigación en Sanidad Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Consejo Superior de Investigaciones Científicas (CISA-INIA-CSIC), Valdeolmos, Madrid, Spain.
Cyclic GMP-AMP synthase (cGAS) is a DNA sensing cellular receptor that induces IFN-I transcription in response to pathogen and host derived cytosolic DNA and can limit the replication of some RNA viruses. Some viruses have nonetheless evolved mechanisms to antagonize cGAS sensing. In this study, we evaluated the interaction between Bluetongue virus (BTV), the prototypical dsRNA virus of the Orbivirus genus and the Sedoreoviridae family, and cGAS.
View Article and Find Full Text PDFThe unique structure of the highly conserved PPLP region in HIV-1 Vif is critical for the formation of APOBEC3 recognition interfaces.
mBio
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Department of Infectious Diseases and Immunology, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Aichi, Japan.
The human cellular cytidine deaminases APOBEC3s (A3s) inhibit virion infectivity factor (Vif)-deficient HIV-1 replication. However, virus-encoded Vifs abolish this defense system by specifically recruiting A3s to an E3 ubiquitin ligase complex to induce their degradation. The highly conserved Vif PPLP motif is critical for the Vif-mediated antagonism of A3s and is believed to be important for Vif multimerization.
View Article and Find Full Text PDFApprehending siRNA Machinery and Gene Silencing in Brinjal Shoot and Fruit Borer, Leucinodes orbonalis.
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Division of Genomic Resources, ICAR-National Bureau of Agricultural Insect Resources, Bengaluru, India.
RNA interference (RNAi) technology is widely used in gene functional studies and has been shown to be a promising next generation alternative for insect pest management. To understand the efficiency of RNAi machinery in Leucinodes orbonalis (L. orbonalis) Guenee, a destructive pest of eggplant, core RNAi pathway genes Argonaute-2, Dicer-2, Loquacious, and Sid-1 were mined from the transcriptome and characterized.
View Article and Find Full Text PDFHow Polyproline Type II Conformation at P Residues Influences the Success of Proline-Based Peptidyl Inhibitors Against Coronavirus Main Protease.
Biochemistry
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Division of Clinical Pharmacology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States.
In the wake of the pandemic, peptidyl protease inhibitors with Pro-based rigid Leu mimetics at the P position have emerged as potent drug candidates against the SARS-CoV-2 main protease. This success is intuitively attributed to the enhanced hydrophobic interactions and rigidity of Pro-based rigid Leu mimetics in the literature. However, the tertiary amide of proline P derivatives, which hinders the formation of a critical hydrogen bond with the enzyme active site, and the constrained PP conformation, which contradicts the protease preferred β-strand conformation, represent two overlooked disadvantages associated with these inhibitors over traditional inhibitors and, theoretically, should adversely affect their potency.
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