Results 131 to 140 of about 369,761 (340)

The Human Cardiac “Age‐OME”: Age‐Specific Changes in Myocardial Molecular Expression

Aging Cell, EarlyView.
A multi‐omics analysis was performed to uncover the molecular landscape of human cardiac ageing. We report several insights for the first time: a decrease in proteins composing the structural machinery of the heart; a likely compensatory increase in energetic flux and redox reductive capacity; and an increase in lysosomal activity.
Cassandra Malecki, Giovanni Guglielmi, Benjamin Hunter, Dylan Harney, Yen Chin Koay, Anthony. S. Don, Oscar Han, Jasmine Khor, Lisa Nguyen, Michael Pan, Peter Gawthrop, Nathan Isles, Joshua Chung, Robert. D. Hume, Matthew Taper, XiaoSuo Wang, Mark Larance, Fabian Spill, Vijay Rajagopal, John F. O’Sullivan, Sean Lal   +20 more
wiley   +1 more source

A universal metabolite repair enzyme removes a strong inhibitor of the TCA cycle

Nature Communications
A prevalent side-reaction of succinate dehydrogenase oxidizes malate to enol-oxaloacetate (OAA), a metabolically inactive form of OAA that is a strong inhibitor of succinate dehydrogenase. We purified from cow heart mitochondria an enzyme (OAT1) with OAA
Anthony J. Zmuda, Xiaojun Kang, Katie B. Wissbroecker, Katrina Freund Saxhaug, Kyle C. Costa, Adrian D. Hegeman, Thomas D. Niehaus   +6 more
doaj   +1 more source

The intracellular localization of malate dehydrogenase isoenzymes in Pisum arvense roots

Acta Societatis Botanicorum Poloniae, 2014
Mitochondria and plastids were isolated from Pisum arvense root cells by sucrose density gradient centrifugation. The individual subcellular fractions so obtained were subjected to isoelectric focusing on cellulose acetate strips.
Genowefa Kubik-Dorosz
doaj   +1 more source

Mitochondrial Malate Dehydrogenase Lowers Leaf Respiration and Alters Photorespiration and Plant Growth in Arabidopsis[W][OA]

Plant Physiology, 2010
Malate dehydrogenase (MDH) catalyzes a reversible NAD+-dependent-dehydrogenase reaction involved in central metabolism and redox homeostasis between organelle compartments.
Tiago Tomaz, M. Bagard, Itsara Pracharoenwattana, Pernilla Lindén, Chun-Pong Lee, Adam J Carroll, E. Ströher, Steven M. L. Smith, P. Gardeström, A. Millar   +9 more
semanticscholar   +1 more source

Enhancing Late‐Life Survival and Mobility via Mitohormesis by Reducing Mitochondrial Calcium Levels

Aging Cell, EarlyView.
RNAi knockdown (KD) of mcu‐1 or mitoxantrone treatment lowers mitochondrial Ca2+, extends lifespan, and preserves motility during aging. Benefits require early intervention and involve a transient ROS increase that activates a pmk‐1, daf‐16, and skn‐1 pathway, enhancing stress defense and mitochondrial integrity while reducing early‐life survival ...
Doruntina Bresilla, Ines Tawfik, Martin Hirtl, Sonja Gabrijelčič, Julian Ostaku, Fabienne Mossegger, Lia Wurzer, Susanne Lederer, Katarina Kalinova, Ernst Malle, Markus Schosserer, Kim Zarse, Michael Ristow, Corina T. Madreiter‐Sokolowski   +13 more
wiley   +1 more source

Regulation of Leaf Senescence by Cytokinin, Sugars, and Light. Effects on NADH-Dependent Hydroxypyruvate Reductase [PDF]

, 1998
The aim of this study was to investigate the interactions between cytokinin, sugar repression, and light in the senescence-related decline in photosynthetic enzymes of leaves. In transgenic tobacco (Nicotiana tabacum) plants that induce the production of
Lea, P.J., Leegood, R.C., Quick, W.P., von Schaewen, A., Wingler, A.   +4 more
core   +1 more source

Revealing the Diverse Allergenic Protein Repertoire of Six Widely Consumed Crab Species: A Species‐Specific Allergen in King Crab

Allergy, EarlyView.
This study comprehended the allergen profiles of six edible crab species using proteomic and transcriptomic analyses and identified 11 putative allergens. King crab has a distinct protein and allergen profile, with the discovery of malate dehydrogenase as a novel king crab‐specific allergen registered as Para c 11.
Shanshan Li, Jingyuan Bian, Qing Xiong, Brian Shing‐Hei Wong, Stephen Kwok‐Wing Tsui, Kin‐Ming Kwan, Nicki Yat‐Hin Leung, Ting‐Fan Leung, Patrick S. C. Leung, Ka‐Hou Chu, Xiaojun Xiao, Christine Yee‐Yan Wai   +11 more
wiley   +1 more source

Enzyme:Nanoparticle Bioconjugates with Two Sequential Enzymes: Stoichiometry and Activity of Malate Dehydrogenase and Citrate Synthase on Au Nanoparticles

Langmuir, 2010
We report the synthesis and characterization of bioconjugates in which the enzymes malate dehydrogenase (MDH) and/or citrate synthase (CS) were adsorbed to 30 nm diameter Au nanoparticles. Enzyme:Au stoichiometry and kinetic parameters (specific activity,
Jacqueline D. Keighron, C. Keating
semanticscholar   +1 more source

Tricarboxylic acid cycle enzyme activities in a mouse model of methylmalonic aciduria [PDF]

, 2019
Methylmalonic acidemia (MMA) is a propionate pathway disorder caused by dysfunction of the mitochondrial enzyme methylmalonyl-CoA mutase (MMUT). MMUT catalyzes the conversion of methylmalonyl-CoA to succinyl-CoA, an anaplerotic reaction which feeds into ...
Baumgartner, Matthias R, Chapman, Kimberly A, Cunningham, Gary, Forny, Patrick, Pumbo, Elena, Summar, Marshall L, Wongkittichote, Parith   +6 more
core   +1 more source

Label-free shotgun proteomics and metabolite analysis reveal a significant metabolic shift during citrus fruit development. [PDF]

, 2011
Label-free LC-MS/MS-based shot-gun proteomics was used to quantify the differential protein synthesis and metabolite profiling in order to assess metabolic changes during the development of citrus fruits.
Blumwald, Eduardo, Boo, Kyung Hwan, Eigenheer, Richard A, Katz, Ehud, Kim, Ho Youn, Negre-Zakharov, Florence, Phinney, Brett S, Sadka, Avi, Shulaev, Vladimir   +8 more
core   +3 more sources