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Authors: J. Michael Cherry Eurie Hong Benjamin Vincent Cynthia Krieger An online version of this diagram is available through BioCyc.org and may be used for analysis of omics datasets. Lines in the diagram correspond to reactions; nodes correspond to metabolites. Rama Balakrishnan Ron Caspi Pathways are colored according to their cellular function, such as biosynthesis of cofactors. YeastCyc: Saccharomyces cerevisiae S288c Cellular Overview Reactions not assigned to any pathway are in the far right of the cytoplasm. Julie Park Hartmut Foerster In the membrane are transporters (with arrows) and other membrane proteins. H + H + cys spermidine glu quinidine taurocholate a glutathione- a glutathione- connections between pathways are omitted for legibility.

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The Diversity of Dolichol-Linked Precursors to Asn-Linked Glycans Likely Results from Secondary Loss of Sets of Glycosyltransferases
The diversity of dolichol-linked precursors to Asn-linked glycans likely results from secondary loss of sets of glycosyltransferases John Samuelson*†, Sulagna Banerjee*, Paula Magnelli*, Jike Cui*, Daniel J. Kelleher‡, Reid Gilmore‡, and Phillips W. Robbins* *Department of Molecular and Cell Biology, Boston University Goldman School of Dental Medicine, 715 Albany Street, Boston, MA 02118-2932; and ‡Department of Biochemistry and Molecular Biology, University of Massachusetts Medical School, Worcester, MA 01665-0103 Contributed by Phillips W. Robbins, December 17, 2004 The vast majority of eukaryotes (fungi, plants, animals, slime mold, to N-glycans of improperly folded proteins, which are retained in and euglena) synthesize Asn-linked glycans (Alg) by means of a the ER by conserved glucose-binding lectins (calnexin͞calreticulin) lipid-linked precursor dolichol-PP-GlcNAc2Man9Glc3. Knowledge of (13). Although the Alg glycosyltransferases in the lumen of ER this pathway is important because defects in the glycosyltrans- appear to be eukaryote-specific, archaea and Campylobacter sp. ferases (Alg1–Alg12 and others not yet identiﬁed), which make glycosylate the sequon Asn and͞or contain glycosyltransferases dolichol-PP-glycans, lead to numerous congenital disorders of with domains like those of Alg1, Alg2, Alg7, and STT3 (1, 14–16). glycosylation. Here we used bioinformatic and experimental Protists, unicellular eukaryotes, suggest three notable exceptions methods to characterize Alg glycosyltransferases and dolichol- to the N-linked glycosylation path described in yeast and animals PP-glycans of diverse protists, including many human patho- (17). First, the kinetoplastid Trypanosoma cruzi (cause of Chagas gens, with the following major conclusions. First, it is demon- myocarditis), fails to glucosylate the dolichol-PP-linked precursor strated that common ancestry is a useful method of predicting and so makes dolichol-PP-GlcNAc2Man9 (18).
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Remodeling Adipose Tissue Through in Silico Modulation of Fat Storage For
Chénard et al. BMC Systems Biology (2017) 11:60 DOI 10.1186/s12918-017-0438-9 RESEARCHARTICLE Open Access Remodeling adipose tissue through in silico modulation of fat storage for the prevention of type 2 diabetes Thierry Chénard2, Frédéric Guénard3, Marie-Claude Vohl3,4, André Carpentier5, André Tchernof4,6 and Rafael J. Najmanovich1* Abstract Background: Type 2 diabetes is one of the leading non-infectious diseases worldwide and closely relates to excess adipose tissue accumulation as seen in obesity. Specifically, hypertrophic expansion of adipose tissues is related to increased cardiometabolic risk leading to type 2 diabetes. Studying mechanisms underlying adipocyte hypertrophy could lead to the identification of potential targets for the treatment of these conditions. Results: We present iTC1390adip, a highly curated metabolic network of the human adipocyte presenting various improvements over the previously published iAdipocytes1809. iTC1390adip contains 1390 genes, 4519 reactions and 3664 metabolites. We validated the network obtaining 92.6% accuracy by comparing experimental gene essentiality in various cell lines to our predictions of biomass production. Using flux balance analysis under various test conditions, we predict the effect of gene deletion on both lipid droplet and biomass production, resulting in the identification of 27 genes that could reduce adipocyte hypertrophy. We also used expression data from visceral and subcutaneous adipose tissues to compare the effect of single gene deletions between adipocytes from each
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METABOLIC EVOLUTION in GALDIERIA SULPHURARIA By
METABOLIC EVOLUTION IN GALDIERIA SULPHURARIA By CHAD M. TERNES Bachelor of Science in Botany Oklahoma State University Stillwater, Oklahoma 2009 Submitted to the Faculty of the Graduate College of the Oklahoma State University in partial fulfillment of the requirements for the Degree of DOCTOR OF PHILOSOPHY May, 2015 METABOLIC EVOLUTION IN GALDIERIA SUPHURARIA Dissertation Approved: Dr. Gerald Schoenknecht Dissertation Adviser Dr. David Meinke Dr. Andrew Doust Dr. Patricia Canaan ii Name: CHAD M. TERNES Date of Degree: MAY, 2015 Title of Study: METABOLIC EVOLUTION IN GALDIERIA SULPHURARIA Major Field: PLANT SCIENCE Abstract: The thermoacidophilic, unicellular, red alga Galdieria sulphuraria possesses characteristics, including salt and heavy metal tolerance, unsurpassed by any other alga. Like most plastid bearing eukaryotes, G. sulphuraria can grow photoautotrophically. Additionally, it can also grow solely as a heterotroph, which results in the cessation of photosynthetic pigment biosynthesis. The ability to grow heterotrophically is likely correlated with G. sulphuraria ’s broad capacity for carbon metabolism, which rivals that of fungi. Annotation of the metabolic pathways encoded by the genome of G. sulphuraria revealed several pathways that are uncharacteristic for plants and algae, even red algae. Phylogenetic analyses of the enzymes underlying the metabolic pathways suggest multiple instances of horizontal gene transfer, in addition to endosymbiotic gene transfer and conservation through ancestry. Although some metabolic pathways as a whole appear to be retained through ancestry, genes encoding individual enzymes within a pathway were substituted by genes that were acquired horizontally from other domains of life. Thus, metabolic pathways in G. sulphuraria appear to be composed of a ‘metabolic patchwork’, underscored by a mosaic of genes resulting from multiple evolutionary processes.
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Physical Interactions Between the Alg1, Alg2, and Alg11 Mannosyltransferases of the Endoplasmic Reticulum
Glycobiology vol. 14 no. 6 pp. 559±570, 2004 DOI: 10.1093/glycob/cwh072 Advance Access publication on March 24, 2004 Physical interactions between the Alg1, Alg2, and Alg11 mannosyltransferases of the endoplasmic reticulum Xiao-Dong Gao2, Akiko Nishikawa1, and Neta Dean1 begins on the cytosolic face of the ER, where seven sugars (two N-acetylglucoseamines and five mannoses) are added 1Department of Biochemistry and Cell Biology, Institute for Cell and Developmental Biology, State University of New York, Stony Brook, sequentially to dolichyl phosphate on the outer leaflet of NY 11794-5215, and 2Research Center for Glycoscience, National the ER, using nucleotide sugar donors (Abeijon and Institute of Advanced Industrial Science and Technology, Tsukuba Hirschberg, 1992; Perez and Hirschberg, 1986; Snider and Downloaded from https://academic.oup.com/glycob/article/14/6/559/638968 by guest on 30 September 2021 Central 6, 1-1 Higashi, Tsukuba 305-8566, Japan Rogers, 1984). After a ``flipping'' or translocation step, the Received on January 26, 2004; revised on March 2, 2004; accepted on last seven sugars (four mannoses and three glucoses) are March 2, 2004 added within the lumen of the ER, using dolichol-linked sugar donors (Burda and Aebi, 1999). Once assembled, the The early steps of N-linked glycosylation involve the synthesis oligosaccharide is transferred from the lipid to nascent of a lipid-linked oligosaccharide, Glc3Man9GlcNAc2-PP- protein in a reaction catalyzed by oligosaccharyltransferase. dolichol, on the endoplasmic reticulum (ER) membrane. After removal of terminal glucoses and a single mannose, Prior to its lumenal translocation and transfer to nascent nascent glycoproteins bearing the N-linked Man8GlcNAc2 glycoproteins, mannosylation of Man5GlcNAc2-PP-dolichol core can exit the ER to the Golgi, where this core may is catalyzed by the Alg1, Alg2, and Alg11 mannosyltrans- undergo further carbohydrate modifications.
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Class-I and Class-II Fumarases Are a Paradigm of the Recruitment Of
bioRxiv preprint doi: https://doi.org/10.1101/2020.08.04.232652; this version posted August 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 Class-I and Class-II fumarases are a paradigm of the recruitment of 2 metabolites and metabolic enzymes for signalling of the DNA Damage 3 Response during evolution. 4 5 Yardena Silas 1, 2, Esti Singer 1, Norbert Lehming 2 and Ophry Pines 1, 2* 6 1. Department of Microbiology and Molecular Genetics, IMRIC, Faculty of Medicine, 7 Hebrew University, Jerusalem, Israel 8 2. CREATE‑NUS‑HUJ Program and the Department of Microbiology and Immunology, 9 Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 10 Singapore. 11 12 [email protected] 13 [email protected] 14 [email protected] 15 [email protected] 16 17 18 19 20 21 22 23 24 25 26 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.08.04.232652; this version posted August 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 27 Abstract 28 Class-II fumarase (Fumarate Hydratase, FH) and its metabolic intermediates are essential 29 components in the DNA damage response (DDR) in eukaryotic cells (human and yeast) and 30 in the prokaryote Bacillus subtilis.
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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. Periplasmic (where appropriate) and extracellular reactions and proteins may also be shown. Pathways are colored according to their cellular function. Gcf_000238675-HmpCyc: Bacillus smithii 7_3_47FAA Cellular Overview Connections between pathways are omitted for legibility.
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Page Numbers in Bold Indicate Main Discus- Sion of Topic. Page Numbers
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Supplementary Materials
1 Supplementary Materials: Supplemental Figure 1. Gene expression profiles of kidneys in the Fcgr2b-/- and Fcgr2b-/-. Stinggt/gt mice. (A) A heat map of microarray data show the genes that significantly changed up to 2 fold compared between Fcgr2b-/- and Fcgr2b-/-. Stinggt/gt mice (N=4 mice per group; p<0.05). Data show in log2 (sample/wild-type). 2 Supplemental Figure 2. Sting signaling is essential for immuno-phenotypes of the Fcgr2b-/-lupus mice. (A-C) Flow cytometry analysis of splenocytes isolated from wild-type, Fcgr2b-/- and Fcgr2b-/-. Stinggt/gt mice at the age of 6-7 months (N= 13-14 per group). Data shown in the percentage of (A) CD4+ ICOS+ cells, (B) B220+ I-Ab+ cells and (C) CD138+ cells. Data show as mean ± SEM (*p < 0.05, **p<0.01 and ***p<0.001). 3 Supplemental Figure 3. Phenotypes of Sting activated dendritic cells. (A) Representative of western blot analysis from immunoprecipitation with Sting of Fcgr2b-/- mice (N= 4). The band was shown in STING protein of activated BMDC with DMXAA at 0, 3 and 6 hr. and phosphorylation of STING at Ser357. (B) Mass spectra of phosphorylation of STING at Ser357 of activated BMDC from Fcgr2b-/- mice after stimulated with DMXAA for 3 hour and followed by immunoprecipitation with STING. (C) Sting-activated BMDC were co-cultured with LYN inhibitor PP2 and analyzed by flow cytometry, which showed the mean fluorescence intensity (MFI) of IAb expressing DC (N = 3 mice per group). 4 Supplemental Table 1. Lists of up and down of regulated proteins Accession No.
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Review Article
REVIEW ARTICLE COLLAGEN METABOLISM COLLAGEN METABOLISM Types of Collagen 228 Structure of Collagen Molecules 230 Synthesis and Processing of Procollagen Polypeptides 232 Transcription and Translation 233 Posttranslational Modifications 233 Extracellular Processing of Procollagen and Collagen Fibrillogenesis 240 Functions of Collagen in Connective rissue 243 Collagen Degradation 245 Regulation of the Metabolism of Collagen 246 Heritable Diseases of Collagen 247 Recessive Dermatosparaxis 248 Recessive Forms of EDS 251 EDS VI 251 EDS VII 252 EDS V 252 Lysyl Oxidase Deficiency in the Mouse 253 X-Linked Cutis Laxa 253 Menke's Kinky Hair Syndrome 253 Homocystinuria 254 EDS IV 254 Dominant Forms of EDS 254 Dominant Collagen Packing Defect I 255 Dominant and Recessive Forms of Osteogenesis Imperfecta 258 Dominant and Recessive Forms of Cutis Laxa 258 The Marfan Syndrome 259 Acquired Diseases and Repair Processes Affecting Collagen 259 Acquired Changes in the Types of Collagen Synthesis 260 Acquired Changes in Amounts of Collagen Synthesized 263 Acquired Changes in Hydroxylation of Proline and Lysine 264 Acquired Changes in Collagen Cross-Links 265 Acquired Defects in Collagen Degradation 267 Conclusion 267 Bibliography 267 Collagen Metabolism A Comparison of Diseases of Collagen and Diseases Affecting Collagen Ronald R. Minor, VMD, PhD COLLAGEN CONSTITUTES approximately one third of the body's total protein, and changes in synthesis and/or degradation of colla- gen occur in nearly every disease process. There are also a number of newly described specific diseases of collagen in both man and domestic animals. Thus, an understanding of the synthesis, deposition, and turnover of collagen is important for the pathologist, the clinician, and the basic scientist alike.
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Discovery of an alternate metabolic pathway for urea synthesis in adult Aedes aegypti mosquitoes Patricia Y. Scaraffia*†‡, Guanhong Tan§, Jun Isoe*†, Vicki H. Wysocki*§, Michael A. Wells*†, and Roger L. Miesfeld*† Departments of §Chemistry and *Biochemistry and Molecular Biophysics and †Center for Insect Science, University of Arizona, Tucson, AZ 85721-0088 Edited by Anthony A. James, University of California, Irvine, CA, and approved December 4, 2007 (received for review August 27, 2007) We demonstrate the presence of an alternate metabolic pathway We previously reported that mosquitoes dispose of toxic for urea synthesis in Aedes aegypti mosquitoes that converts uric ammonia through glutamine (Gln) and proline (Pro) synthesis, acid to urea via an amphibian-like uricolytic pathway. For these along with excretion of ammonia, uric acid, and urea (20). By studies, female mosquitoes were fed a sucrose solution containing using labeled isotopes and mass spectrometry techniques (21), 15 15 15 15 15 NH4Cl, [5- N]-glutamine, [ N]-proline, allantoin, or allantoic we have recently determined how the N from NH4Cl is acid. At 24 h after feeding, the feces were collected and analyzed incorporated into the amide side chain of Gln, and then into Pro, in a mass spectrometer. Specific enzyme inhibitors confirmed that in Ae. aegypti (22). In the present article we demonstrate that the 15 15 15 mosquitoes incorporate N from NH4Cl into [5- N]-glutamine nitrogen of the amide group of Gln contributes to uric acid and use the 15N of the amide group of glutamine to produce synthesis in mosquitoes and, surprisingly, that uric acid can be 15 labeled uric acid.
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bioRxiv preprint doi: https://doi.org/10.1101/2020.11.17.386672; this version posted November 17, 2020. 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. 1 The histone deacetylase HDA15 interacts with MAC3A and MAC3B to regulate intron 2 retention of ABA-responsive genes 3 4 Yi-Tsung Tu1#, Chia-Yang Chen1#, Yi-Sui Huang1, Ming-Ren Yen2, Jo-Wei Allison Hsieh2,3, 5 Pao-Yang Chen2,3*and Keqiang Wu1* 6 7 1Institute of Plant Biology, National Taiwan University, Taipei 10617, Taiwan 8 2 Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan 9 3 Genome and Systems Biology Degree Program, Academia Sinica and National Taiwan 10 University, Taipei, Taiwan 11 12 # These authors contributed equally to this work. 13 * Corresponding authors: Keqiang Wu ([email protected], +886-2-3366-4546) and Pao-Yang 14 Chen ([email protected], +886-2-2787-1140) 15 16 Short title: HDA15 and MAC3A/MAC3B coregulate intron retention 17 One sentence summary: HDA15 and MAC3A/MAC3B coregulate intron retention and reduce 18 the histone acetylation level of the genomic regions near ABA-responsive retained introns. 19 20 The author responsible for distribution of materials integral to the findings presented in this 21 article in accordance with the policy described in the Instructions for Authors (www.plantcell.org) 22 is: Keqiang Wu ([email protected]) 23 24 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.11.17.386672; this version posted November 17, 2020.
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