O
Olga Protchenko
Researcher at National Institutes of Health
Publications - 22
Citations - 1634
Olga Protchenko is an academic researcher from National Institutes of Health. The author has contributed to research in topics: Heme & Saccharomyces cerevisiae. The author has an hindex of 16, co-authored 20 publications receiving 1277 citations.
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Journal ArticleDOI
Response to Iron Deprivation in Saccharomyces cerevisiae
TL;DR: Iron is an essential nutrient for almost every organism because iron cofactors, such as heme and iron-sulfur clusters (ISC), are required for the activity of numerous cellular enzymes involved in a wide range of cellular processes.
Journal ArticleDOI
Iron catalysis of lipid peroxidation in ferroptosis: Regulated enzymatic or random free radical reaction?
Detcho A. Stoyanovsky,Y.Y. Tyurina,Indira H. Shrivastava,Ivet Bahar,Vladimir A. Tyurin,Olga Protchenko,Shyamalagauri Jadhav,Sergey Bolevich,Andrey V. Kozlov,Yury A. Vladimirov,Anna A. Shvedova,Caroline C. Philpott,Hülya Bayır,Valerian E. Kagan +13 more
TL;DR: A two-stage iron-dependent mechanism for iron in ferroptosis is proposed by combining its catalytic role in the 15-LOX-driven production of 15-hydroperoxy-AA-PE (HOO-AA -PE) as well as possible involvement of loosely-bound iron in oxidative cleavage of HOO- AA-PE to oxidatively truncated electrophiles capable of attacking nucleophilic targets in yet to be identified proteins leading to cell demise.
Journal ArticleDOI
Three cell wall mannoproteins facilitate the uptake of iron in Saccharomyces cerevisiae.
Olga Protchenko,Tracy Ferea,Jared Rashford,John Tiedeman,Patrick O. Brown,David Botstein,Caroline C. Philpott +6 more
TL;DR: FIT-deletion strains exhibited increased expression of Aft1p target genes as measured by a FET3-lacZreporter gene or by Arn1p Western blotting, indicating that cells respond to the absence of FIT genes by up-regulating systems of iron uptake.
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α-Synuclein Shows High Affinity Interaction with Voltage-dependent Anion Channel, Suggesting Mechanisms of Mitochondrial Regulation and Toxicity in Parkinson Disease.
Tatiana K. Rostovtseva,Philip A. Gurnev,Olga Protchenko,David P. Hoogerheide,Thai Leong Yap,Caroline C. Philpott,Jennifer C. Lee,Sergey M. Bezrukov +7 more
TL;DR: The functional interactions between VDAC and α- Synuclein point toward the long sought after physiological and pathophysiological roles for monomeric α-syn in PD and in other α- synucleinopathies.
Journal ArticleDOI
Metabolic Response to Iron Deficiency in Saccharomyces cerevisiae
Minoo Shakoury-Elizeh,Olga Protchenko,Alvin Berger,James E. Cox,Kenneth Gable,Teresa M. Dunn,William A. Prinz,Martin Bard,Caroline C. Philpott +8 more
TL;DR: Iron-deficient cells exhibited depletion of most iron enzyme activities, but loss of activity during iron deficiency did not consistently disrupt metabolism, and Amino acid homeostasis was robust, but iron deficiency impaired lipid synthesis, altering the properties and functions of cellular membranes.