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Authors: Pallavi Subhraveti Ron Caspi Peter Midford Peter D Karp An online version of this diagram is available at BioCyc.org. Biosynthetic pathways are positioned in the left of the cytoplasm, degradative pathways on the right, and reactions not assigned to any pathway are in the far right of the cytoplasm. Transporters and membrane proteins are shown on the membrane. Ingrid Keseler Periplasmic (where appropriate) and extracellular reactions and proteins may also be shown. Pathways are colored according to their cellular function. Gcf_004636365Cyc: Bordetella pertussis J375 Cellular Overview Connections between pathways are omitted for legibility.

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Cysteine Dioxygenase 1 Is a Metabolic Liability for Non-Small Cell Lung Cancer Authors: Yun Pyo Kang1, Laura Torrente1, Min Liu2, John M
bioRxiv preprint doi: https://doi.org/10.1101/459602; this version posted November 1, 2018. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Cysteine dioxygenase 1 is a metabolic liability for non-small cell lung cancer Authors: Yun Pyo Kang1, Laura Torrente1, Min Liu2, John M. Asara3,4, Christian C. Dibble5,6 and Gina M. DeNicola1,* Affiliations: 1 Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA 2 Proteomics and Metabolomics Core Facility, Moffitt Cancer Center and Research Institute, Tampa, FL, USA 3 Division of Signal Transduction, Beth Israel Deaconess Medical Center, Boston, MA, USA 4 Department of Medicine, Harvard Medical School, Boston, MA, USA 5 Department of Pathology and Cancer Center, Beth Israel Deaconess Medical Center, Boston, MA, USA 6 Department of Pathology, Harvard Medical School, Boston, MA, USA *Correspondence to: [email protected]. Keywords: KEAP1, NRF2, cysteine, CDO1, sulfite Summary NRF2 is emerging as a major regulator of cellular metabolism. However, most studies have been performed in cancer cells, where co-occurring mutations and tumor selective pressures complicate the influence of NRF2 on metabolism. Here we use genetically engineered, non-transformed primary cells to isolate the most immediate effects of NRF2 on cellular metabolism. We find that NRF2 promotes the accumulation of intracellular cysteine and engages the cysteine homeostatic control mechanism mediated by cysteine dioxygenase 1 (CDO1), which catalyzes the irreversible metabolism of cysteine to cysteine sulfinic acid (CSA). Notably, CDO1 is preferentially silenced by promoter methylation in non-small cell lung cancers (NSCLC) harboring mutations in KEAP1, the negative regulator of NRF2.
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RT² Profiler PCR Array (Rotor-Gene® Format) Human Amino Acid Metabolism I
RT² Profiler PCR Array (Rotor-Gene® Format) Human Amino Acid Metabolism I Cat. no. 330231 PAHS-129ZR For pathway expression analysis Format For use with the following real-time cyclers RT² Profiler PCR Array, Rotor-Gene Q, other Rotor-Gene cyclers Format R Description The Human Amino Acid Metabolism I RT² Profiler PCR Array profiles the expression of 84 key genes important in biosynthesis and degradation of functional amino acids. Of the 20 amino acids required for protein synthesis, six of them (arginine, cysteine, glutamine, leucine, proline, and tryptophan), collectively known as the functional amino acids, regulate key metabolic pathways involved in cellular growth, and development, as well as other important biological processes such as immunity and reproduction. For example, leucine activates mTOR signaling and increases protein synthesis, leading to lymphocyte proliferation. Therefore, a lack of leucine can compromise immune function. Metabolic pathways interrelated with the biosynthesis and degradation of these amino acids include vitamin and cofactor biosynthesis (such as SAM or S-Adenosyl Methionine) as well as neurotransmitter metabolism (such as glutamate). This array includes genes for mammalian functional amino acid metabolism as well as genes involved in methionine metabolism, important also for nutrient sensing and sulfur metabolism. Using realtime PCR, you can easily and reliably analyze the expression of a focused panel of genes involved in functional amino acid metabolism with this array. For further details, consult the RT² Profiler PCR Array Handbook. Shipping and storage RT² Profiler PCR Arrays in the Rotor-Gene format are shipped at ambient temperature, on dry ice, or blue ice packs depending on destination and accompanying products.
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The Different Catalytic Roles of the Metal Binding Ligands in Human 4- Hydroxyphenylpyruvate Dioxygenase
Citation for published version: Huang, C-W, Liu, H-C, Shen, C-P, Chen, Y-T, Lee, S-J, Lloyd, MD & Lee, H-J 2016, 'The different catalytic roles of the metal- binding ligands in human 4-hydroxyphenylpyruvate dioxygenase', Biochemical Journal, vol. 473, no. 9, pp. 1179-1189. https://doi.org/10.1042/BCJ20160146 DOI: 10.1042/BCJ20160146 Publication date: 2016 Document Version Peer reviewed version Link to publication Publisher Rights Unspecified University of Bath Alternative formats If you require this document in an alternative format, please contact: [email protected] General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Download date: 28. Sep. 2021 BIOCHEMICAL JOURNAL ACCEPTED MANUSCRIPT The different catalytic roles of the metal binding ligands in human 4- hydroxyphenylpyruvate dioxygenase Chih‐Wei Huang, Hsiu‐Chen Liu, Chia‐Pei Shen, Yi‐Tong Chen, Sung‐Jai Lee, Matthew D. Lloyd, and Hwei‐Jen Lee 4‐Hydroxylphenylpyruvate dioxygenase (HPPD) is a non‐haem iron(II)‐dependent oxygenase that catalyzes the conversion of 4‐hydroxylphenylpyruvate (HPP) to homogentisate (HG). In the active site, a strictly conserved 2‐His‐1‐Glu facial triad coordinates the iron ready for catalysis. Substitution of these residues resulted in about a 10‐fold decrease in the metal binding affinity, as measured by isothermal titration calorimetry, and a large reduction in enzyme catalytic efficiencies.
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Supplementary Table S4. FGA Co-Expressed Gene List in LUAD
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Transcriptomic and Proteomic Profiling Provides Insight Into
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Mechanistic Study of Cysteine Dioxygenase, a Non-Heme
MECHANISTIC STUDY OF CYSTEINE DIOXYGENASE, A NON-HEME MONONUCLEAR IRON ENZYME by WEI LI Presented to the Faculty of the Graduate School of The University of Texas at Arlington in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY THE UNIVERSITY OF TEXAS AT ARLINGTON August 2014 Copyright © by Student Name Wei Li All Rights Reserved Acknowledgements I would like to thank Dr. Pierce for your mentoring, guidance and patience over the five years. I cannot go all the way through this without your help. Your intelligence and determination has been and will always be an example for me. I would like to thank my committee members Dr. Dias, Dr. Heo and Dr. Jonhson- Winters for the directions and invaluable advice. I also would like to thank all my lab mates, Josh, Bishnu ,Andra, Priyanka, Eleanor, you all helped me so I could finish my projects. I would like to thank the Department of Chemistry and Biochemistry for the help with my academic and career. At Last, I would like to thank my lovely wife and beautiful daughter who made my life meaningful and full of joy. July 11, 2014 iii Abstract MECHANISTIC STUDY OF CYSTEINE DIOXYGENASE A NON-HEME MONONUCLEAR IRON ENZYME Wei Li, PhD The University of Texas at Arlington, 2014 Supervising Professor: Brad Pierce Cysteine dioxygenase (CDO) is an non-heme mononuclear iron enzymes that catalyzes the O2-dependent oxidation of L-cysteine (Cys) to produce cysteine sulfinic acid (CSA). CDO controls cysteine levels in cells and is a potential drug target for some diseases such as Parkinson’s and Alzhermer’s.
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Generate Metabolic Map Poster
Authors: Pallavi Subhraveti Ron Caspi Quang Ong Peter D Karp An online version of this diagram is available at BioCyc.org. Biosynthetic pathways are positioned in the left of the cytoplasm, degradative pathways on the right, and reactions not assigned to any pathway are in the far right of the cytoplasm. Transporters and membrane proteins are shown on the membrane. Ingrid Keseler Periplasmic (where appropriate) and extracellular reactions and proteins may also be shown. Pathways are colored according to their cellular function. Gcf_900114035Cyc: Amycolatopsis sacchari DSM 44468 Cellular Overview Connections between pathways are omitted for legibility.
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Changes in Melanocyte RNA and DNA Methylation Favor
1 1 Changes in melanocyte RNA and DNA methylation favor 2 pheomelanin synthesis and may avoid systemic oxidative 3 stress after dietary cysteine supplementation in birds 4 Running title: Epigenetics of pheomelanin-based pigmentation 5 6 Sol Rodríguez-Martínez1, Rafael Márquez1, Ângela Inácio2 and 7 Ismael Galván1 8 9 1Departamento de Ecología Evolutiva, Estación Biológica de Doñana, CSIC, Sevilla, 10 Spain 11 2Laboratório de Genética, Instituto de Saúde Ambiental, Faculdade de Medicina, 12 Universidade de Lisboa, Lisboa, Portugal 13 14 Correspondence 15 Ismael Galván, Departamento de Ecología Evolutiva, Estación Biológica de Doñana, 16 CSIC, Sevilla, Spain. 17 Email: [email protected] 18 19 20 21 22 2 23 Abstract 24 Cysteine plays essential biological roles, but excessive amounts produce cellular 25 oxidative stress. Cysteine metabolism is mainly mediated by the enzymes cysteine 26 dioxygenase and γ-glutamylcysteine synthetase, respectively coded by the genes 27 CDO1 and GCLC. Here we test a new hypothesis posing that the synthesis of the 28 pigment pheomelanin also contributes to cysteine homeostasis in melanocytes, 29 where cysteine can enter the pheomelanogenesis pathway. We conducted a 30 experiment in the Eurasian nuthatch Sitta europaea, a bird producing large amounts 31 of pheomelanin for feather pigmentation, to investigate if melanocytes show 32 epigenetic lability under exposure to excess cysteine. We increased systemic 33 cysteine levels in nuthatches by supplementing them with dietary cysteine during 34 growth. This caused in feather melanocytes the downregulation of genes involved in 35 intracellular cysteine metabolism (GCLC), cysteine transport to the cytosol from the 36 extracellular medium (Slc7a11) and from melanosomes (CTNS), and regulation of 37 tyrosinase activity (MC1R and ASIP).
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Catalytic Strategies of the Non-Heme Iron Dependent Oxygenases And
Available online at www.sciencedirect.com ScienceDirect Catalytic strategies of the non-heme iron dependent oxygenases and their roles in plant biology Mark D White and Emily Flashman Non-heme iron-dependent oxygenases catalyse the these enzymes play in plant biology. Targeted manipula- incorporation of O2 into a wide range of biological molecules tion of these enzymes could have beneficial effects for and use diverse strategies to activate their substrates. Recent plant growth and/or stress tolerance, addressing the 21st kinetic studies, including in crystallo, have provided century issue of food security. We therefore highlight experimental support for some of the intermediates used by those of potential agricultural (and/or health) interest. different subclasses of this enzyme family. Plant non-heme iron-dependent oxygenases have diverse and important Resolving intermediates in non-heme iron biological roles, including in growth signalling, stress dependent oxygenase catalysis responses and secondary metabolism. Recently identified To activate O2, non-heme iron-dependent oxygenases use roles include in strigolactone biosynthesis, O-demethylation in a redox active iron, coordinated octahedrally at their active morphine biosynthesis and regulating the stability of hypoxia- site with water, usually in a vicinal facial triad arrangement responsive transcription factors. We discuss current structural [1]. During turnover, H2O is sequentially displaced by and mechanistic understanding of plant non-heme iron substrate/co-substrate and O2, which is reductively acti- oxygenases, and how their chemical/genetic manipulation vated enabling a specific substrate modification. Enzyme could have agricultural benefit, for example, for improved yield, subfamilies are proposed to employ different reactive stress tolerance or herbicide development.
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Cysteine, Glutathione, and Thiol Redox Balance in Astrocytes
antioxidants Review Cysteine, Glutathione, and Thiol Redox Balance in Astrocytes Gethin J. McBean School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Dublin, Ireland; [email protected]; Tel.: +353-1-716-6770 Received: 13 July 2017; Accepted: 1 August 2017; Published: 3 August 2017 Abstract: This review discusses the current understanding of cysteine and glutathione redox balance in astrocytes. Particular emphasis is placed on the impact of oxidative stress and astrocyte activation on pathways that provide cysteine as a precursor for glutathione. The effect of the disruption of thiol-containing amino acid metabolism on the antioxidant capacity of astrocytes is also discussed. − Keywords: cysteine; cystine; cysteamine; cystathionine; glutathione; xc cystine-glutamate exchanger; transsulfuration 1. Introduction Thiol groups, whether contained within small molecules, peptides, or proteins, are highly reactive and prone to spontaneous oxidation. Free cysteine readily oxidises to its corresponding disulfide, cystine, that together form the cysteine/cystine redox couple. Similarly, the tripeptide glutathione (γ-glutamyl-cysteinyl-glycine) exists in both reduced (GSH) and oxidised (glutathione disulfide; GSSG) forms, depending on the oxidation state of the sulfur atom on the cysteine residue. In the case of proteins, the free sulfhydryl group on cysteines can adopt a number of oxidation states, ranging from disulfides (–S–S–) and sulfenic acids (–SOOH), which are reversible, to the more oxidised sulfinic (–SOO2H) and sulfonic acids (–SOO3H), which are not. These latter species may arise as a result of chronic and/or severe oxidative stress, and generally indicate a loss of function of irreversibly oxidised proteins. Methionine residues oxidise to the corresponding sulfoxide, which can be rescued enzymatically by methionine sulfoxide reductase [1].
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Amino Acid Degradation
BI/CH 422/622 OUTLINE: OUTLINE: Protein Degradation (Catabolism) Digestion Amino-Acid Degradation Inside of cells Protein turnover Dealing with the carbon Ubiquitin Fates of the 29 Activation-E1 Seven Families Conjugation-E2 nitrogen atoms in 20 1. ADENQ Ligation-E3 AA: Proteosome 2. RPH 9 ammonia oxidase Amino-Acid Degradation 18 transamination Ammonia 2 urea one-carbon metabolism free transamination-mechanism to know THF Urea Cycle – dealing with the nitrogen SAM 5 Steps Carbamoyl-phosphate synthetase 3. GSC Ornithine transcarbamylase PLP uses Arginino-succinate synthetase Arginino-succinase 4. MT – one carbon metabolism Arginase 5. FY – oxidase vs oxygenase Energetics Urea Bi-cycle 6. KW – Urea Cycle – dealing with the nitrogen 7. BCAA – VIL Feeding the Urea Cycle Glucose-Alanine Cycle Convergence with Fatty acid-odd chain Free Ammonia Overview Glutamine Glutamate dehydrogenase Overall energetics Amino Acid A. Concepts 1. ConvergentDegradation 2. ketogenic/glucogenic 3. Reactions seen before The SEVEN (7) Families B. Transaminase (A,D,E) / Deaminase (Q,N) Family C. Related to biosynthesis (R,P,H; C,G,S; M,T) 1.Glu Family a. Introduce oxidases/oxygenases b. Introduce one-carbon metabolism (1C) 2.Pyruvate Family a. PLP reactions 3. a-Ketobutyric Family (M,T) a. 1-C metabolism D. Dedicated 1. Aromatic Family (F,Y) a. oxidases/oxygenases 2. a-Ketoadipic Family (K,W) 3. Branched-chain Family (V,I,L) E. Convergence with Fatty Acids: propionyl-CoA 29 N 1 Amino Acid Degradation • Intermediates of the central metabolic pathway • Some amino acids result in more than one intermediate. • Ketogenic amino acids can be converted to ketone bodies.
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O O2 Enzymes Available from Sigma Enzymes Available from Sigma
COO 2.7.1.15 Ribokinase OXIDOREDUCTASES CONH2 COO 2.7.1.16 Ribulokinase 1.1.1.1 Alcohol dehydrogenase BLOOD GROUP + O O + O O 1.1.1.3 Homoserine dehydrogenase HYALURONIC ACID DERMATAN ALGINATES O-ANTIGENS STARCH GLYCOGEN CH COO N COO 2.7.1.17 Xylulokinase P GLYCOPROTEINS SUBSTANCES 2 OH N + COO 1.1.1.8 Glycerol-3-phosphate dehydrogenase Ribose -O - P - O - P - O- Adenosine(P) Ribose - O - P - O - P - O -Adenosine NICOTINATE 2.7.1.19 Phosphoribulokinase GANGLIOSIDES PEPTIDO- CH OH CH OH N 1 + COO 1.1.1.9 D-Xylulose reductase 2 2 NH .2.1 2.7.1.24 Dephospho-CoA kinase O CHITIN CHONDROITIN PECTIN INULIN CELLULOSE O O NH O O O O Ribose- P 2.4 N N RP 1.1.1.10 l-Xylulose reductase MUCINS GLYCAN 6.3.5.1 2.7.7.18 2.7.1.25 Adenylylsulfate kinase CH2OH HO Indoleacetate Indoxyl + 1.1.1.14 l-Iditol dehydrogenase L O O O Desamino-NAD Nicotinate- Quinolinate- A 2.7.1.28 Triokinase O O 1.1.1.132 HO (Auxin) NAD(P) 6.3.1.5 2.4.2.19 1.1.1.19 Glucuronate reductase CHOH - 2.4.1.68 CH3 OH OH OH nucleotide 2.7.1.30 Glycerol kinase Y - COO nucleotide 2.7.1.31 Glycerate kinase 1.1.1.21 Aldehyde reductase AcNH CHOH COO 6.3.2.7-10 2.4.1.69 O 1.2.3.7 2.4.2.19 R OPPT OH OH + 1.1.1.22 UDPglucose dehydrogenase 2.4.99.7 HO O OPPU HO 2.7.1.32 Choline kinase S CH2OH 6.3.2.13 OH OPPU CH HO CH2CH(NH3)COO HO CH CH NH HO CH2CH2NHCOCH3 CH O CH CH NHCOCH COO 1.1.1.23 Histidinol dehydrogenase OPC 2.4.1.17 3 2.4.1.29 CH CHO 2 2 2 3 2 2 3 O 2.7.1.33 Pantothenate kinase CH3CH NHAC OH OH OH LACTOSE 2 COO 1.1.1.25 Shikimate dehydrogenase A HO HO OPPG CH OH 2.7.1.34 Pantetheine kinase UDP- TDP-Rhamnose 2 NH NH NH NH N M 2.7.1.36 Mevalonate kinase 1.1.1.27 Lactate dehydrogenase HO COO- GDP- 2.4.1.21 O NH NH 4.1.1.28 2.3.1.5 2.1.1.4 1.1.1.29 Glycerate dehydrogenase C UDP-N-Ac-Muramate Iduronate OH 2.4.1.1 2.4.1.11 HO 5-Hydroxy- 5-Hydroxytryptamine N-Acetyl-serotonin N-Acetyl-5-O-methyl-serotonin Quinolinate 2.7.1.39 Homoserine kinase Mannuronate CH3 etc.
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