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Wheat Bread Supplemented with Egg Albumin: Structural Features, and In Vitro Starch and Protein Digestibility.
Plant Foods Hum Nutr
January 2025
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 PDFThe GPCR-like protein Smoothened (Smo) plays a pivotal role in the Hedgehog (Hh) pathway. To initiate Hh signaling, active Smo binds to and inhibits the catalytic subunit of PKA in the primary cilium, a process facilitated by G protein-coupled receptor kinase 2 (Grk2). However, the precise regulatory mechanisms underlying this process, as well as the events preceding and following Smo activation, remain poorly understood.
View Article and Find Full Text PDFAcetylation-enhanced Sp1 transcriptional activity suppresses Mlph expression.
Sci Rep
January 2025
Department of Genetics and Biotechnology, Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Korea.
Melanosome transport is regulated by major proteins, including Rab27a, Melanophilin (Mlph), and Myosin Va (Myo-Va), that form a tripartite complex. Mutation of these proteins causes melanosome aggregation around the nucleus. Among these proteins, Mlph is a linker between Rab27a and Myo-Va.
View Article and Find Full Text PDFUnveiling lotus root processing under vacuum microwave: starch-malic acid interactions based on moisture, structure, and in vitro digestibility.
Food Chem
January 2025
School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China.
This study evaluated the effects of malic acid vacuum microwave preconditioning (MVMP) on lotus root (LR) by examining its moisture content, dielectric properties, microstructure, and starch characteristics, including modifications in starch structure and composition. Dielectric properties and LF-NMR indicated that the dielectric constant (ε') was closely associated to moisture content and state, while changes in water migration depended on microwave power and the dielectric loss factor (ε″). Increased microwave power and malic acid concentration resulted in microstructural damage (indentation and breakage of starch granules) and starch hydrolysis into smaller particles.
View Article and Find Full Text PDFStructure of the human autophagy factor EPG5 and the molecular basis of its conserved mode of interaction with Atg8-family proteins.
Autophagy
January 2025
Life Sciences Institute, Department of Biochemistry and Molecular Biology, The University of British Columbia, Vancouver, BC, Canada.
The multi-step macroautophagy/autophagy process ends with the cargo-laden autophagosome fusing with the lysosome to deliver the materials to be degraded. The metazoan-specific autophagy factor EPG5 plays a crucial role in this step by enforcing fusion specificity and preventing mistargeting. How EPG5 exerts its critical function and how its deficiency leads to diverse phenotypes of the rare multi-system disorder Vici syndrome are not fully understood.
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