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Acetyl Group Coordinated Progression Through the Catalytic Cycle of an Arylalkylamine N-Acetyltransferase
RESEARCH ARTICLE Acetyl group coordinated progression through the catalytic cycle of an arylalkylamine N-acetyltransferase Adam A. Aboalroub, Ashleigh B. Bachman, Ziming Zhang, Dimitra Keramisanou, David J. Merkler, Ioannis Gelis* Department of Chemistry, University of South Florida, Tampa, Florida, United States of America * [email protected] a1111111111 a1111111111 a1111111111 Abstract a1111111111 a1111111111 The transfer of an acetyl group from acetyl-CoA to an acceptor amine is a ubiquitous bio- chemical transformation catalyzed by Gcn5-related N-acetyltransferases (GNATs). Although it is established that the reaction proceeds through a sequential ordered mecha- nism, the role of the acetyl group in driving the ordered formation of binary and ternary com- OPEN ACCESS plexes remains elusive. Herein, we show that CoA and acetyl-CoA alter the conformation of the substrate binding site of an arylalkylamine N-acetyltransferase (AANAT) to facilitate Citation: Aboalroub AA, Bachman AB, Zhang Z, Keramisanou D, Merkler DJ, Gelis I (2017) Acetyl interaction with acceptor substrates. However, it is the presence of the acetyl group within group coordinated progression through the the catalytic funnel that triggers high affinity binding. Acetyl group occupancy is relayed catalytic cycle of an arylalkylamine N- through a conserved salt bridge between the P-loop and the acceptor binding site, and is acetyltransferase. PLoS ONE 12(5): e0177270. manifested as differential dynamics in the CoA and acetyl-CoA-bound states. The capacity https://doi.org/10.1371/journal.pone.0177270 of the acetyl group carried by an acceptor to promote its tight binding even in the absence of Editor: Viswanathan V. Krishnan, California State CoA, but also its mutually exclusive position to the acetyl group of acetyl-CoA underscore its University Fresno, UNITED STATES importance in coordinating the progression of the catalytic cycle. -
Cloning and Sequence Analysis of Canine Apoptosis-Associated Molecules
Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2007 Cloning and sequence analysis of canine apoptosis-associated molecules Schade, Benjamin Abstract: The aim of the study was to clone and sequence the coding sequences of a representative set of proteins, primarily from the intrinsic apoptotic pathway in dogs and to assess their conservation with hu- man and murine orthologues. cDNA for these proteins, including Bcl-2 family members (Bcl-XL, Bcl-w, Mcl-1, Bax, Bak, Bad, Noxa), caspases (Caspase-3, Caspase-8, Caspase-9), Inhibitors of Apoptosis Pro- teins (XIAP, cIAP-1, cIAP-2, Survivin), their mitochondrial inhibitors (Smac/ DIABLO, Omi/HtrA2) and p53, were generated by RT-PCR with RNA extracted from two canine non-neoplastic cell lines. Eleven sequences are novel for the dog. Interspecies comparison revealed strongest similarity between the sequences of human and canine intrinsic apoptosis pathway members. Differences with potential func- tional impact, however, were observed in both dogs and mice. In dogs, these changes involve the putative Inhibitor of Apoptosis Protein binding motif of canine Omi/HtrA2, some caspase substrate recognition motifs and some functionally relevant residues of p53. Canine XIAP yields a caspase-cleavage site reported as unique to humans. In conclusion, the generally high degree of similarity of canine apoptosis-associated proteins as compared to human counterparts is supportive of the use of dogs as a model for human dis- eases. Single interspecies sequence variations with potential functional relevance under physiologic and neoplastic conditions do exist, however, and will require further analysis. -
Supplementary Materials For
Supplementary Materials for Elucidating cellular population dynamics by molecular density function perturbations 1 2,3, Thanneer Malai Perumal and Rudiyanto Gunawan * 1 Sage Bionetworks, Seattle, Washington, USA; [email protected] 2 Institute for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland; [email protected] 3 Swiss Institute of Bioinformatics, Lausanne, Switzerland * Correspondence: [email protected]; Tel.: +41-44-633-2134 Supplementary Material S1. Probability Distance Metrics Signed Engineering Metric: ∞ 2 ∆ (f A (t, x )||f B (t, x )) = sign(∆μ ) ∫ (x f A (t, x ) − x f B (t, x )) dx (S. 1) E Xi i Xi i Xi i Xi i i Xi i i −∞ Signed Jeffrey Divergence: ∞ f A (t,x ) A B A B Xi i ∆ (f (t, x )||f (t, x )) = sgn(∆μ ) ∫ (f (t, x ) − f (t, x ))ln ( B ) )dx (S. 2) JD Xi i Xi i Xi Xi i Xi i f (t,x ) i −∞ Xi i Signed Kullback-Leibler Distance: ∞ f B (t,x ) A B B Xi i ∆ (f (t, x )||f (t, x )) = sgn(∆μ ) ∫ f (t, x )ln ( A ) dx (S. 3) KLD Xi i Xi i Xi Xi i f (t,x ) i −∞ Xi i Signed Jensen-Shannon Divergence: f + (t,x )+f − (t,x ) Xi i Xi i ∆ f (t, x ) = sgn(∆μ ) (S. 4) JSD Xi i Xi 2 Signed Kolmogorov-Smirnov Metric: ∆ (f A (t, x )||f B (t, x )) = sgn(∆μ )sup|F A (t, x ) − F B (t, x )| (S. 5) KS Xi i Xi i Xi Xi i Xi i Supplementary Material S2. -
Comparison of Gene Expression Profiles in Chromate Transformed BEAS-2B Cells
Comparison of Gene Expression Profiles in Chromate Transformed BEAS-2B Cells Hong Sun1, Harriet A. Clancy1, Thomas Kluz1, Jiri Zavadil2, Max Costa1* 1 Nelson Institute of Environmental Medicine, New York University School of Medicine, Tuxedo, New York, United States of America, 2 Department of Pathology, NYU Cancer Institute and Center for Health Informatics and Bioinformatics, NYU Langone Medical Center, New York, New York, United States of America Abstract Background: Hexavalent chromium [Cr(VI)] is a potent human carcinogen. Occupational exposure has been associated with increased risk of respiratory cancer. Multiple mechanisms have been shown to contribute to Cr(VI) induced carcinogenesis, including DNA damage, genomic instability, and epigenetic modulation, however, the molecular mechanism and downstream genes mediating chromium’s carcinogenicity remain to be elucidated. Methods/Results: We established chromate transformed cell lines by chronic exposure of normal human bronchial epithelial BEAS-2B cells to low doses of Cr(VI) followed by anchorage-independent growth. These transformed cell lines not only exhibited consistent morphological changes but also acquired altered and distinct gene expression patterns compared with normal BEAS-2B cells and control cell lines (untreated) that arose spontaneously in soft agar. Interestingly, the gene expression profiles of six Cr(VI) transformed cell lines were remarkably similar to each other yet differed significantly from that of either control cell lines or normal BEAS-2B cells. A total of 409 differentially expressed genes were identified in Cr(VI) transformed cells compared to control cells. Genes related to cell-to-cell junction were upregulated in all Cr(VI) transformed cells, while genes associated with the interaction between cells and their extracellular matrices were down-regulated. -
ANKRD11 Gene Ankyrin Repeat Domain 11
ANKRD11 gene ankyrin repeat domain 11 Normal Function The ANKRD11 gene provides instructions for making a protein called ankyrin repeat domain 11 (ANKRD11). As its name suggests, this protein contains multiple regions called ankyrin domains; proteins with these domains help other proteins interact with each other. The ANKRD11 protein interacts with certain proteins called histone deacetylases, which are important for controlling gene activity. Through these interactions, ANKRD11 affects when genes are turned on and off. For example, ANKRD11 brings together histone deacetylases and other proteins called p160 coactivators. This association regulates the ability of p160 coactivators to turn on gene activity. ANKRD11 may also enhance the activity of a protein called p53, which controls the growth and division (proliferation) and the self-destruction (apoptosis) of cells. The ANKRD11 protein is found in nerve cells (neurons) in the brain. During embryonic development, ANKRD11 helps regulate the proliferation of these cells and development of the brain. Researchers speculate that the protein may also be involved in the ability of neurons to change and adapt over time (plasticity), which is important for learning and memory. ANKRD11 may function in other cells in the body and appears to be involved in normal bone development. Health Conditions Related to Genetic Changes KBG syndrome Several ANKRD11 gene mutations have been found to cause KBG syndrome, a condition characterized by large upper front teeth and other unusual facial features, skeletal abnormalities, and intellectual disability. Most of these mutations lead to an abnormally short ANKRD11 protein, which likely has little or no function. Reduction of this protein's function is thought to underlie the signs and symptoms of the condition. -
A Computational Approach for Defining a Signature of Β-Cell Golgi Stress in Diabetes Mellitus
Page 1 of 781 Diabetes A Computational Approach for Defining a Signature of β-Cell Golgi Stress in Diabetes Mellitus Robert N. Bone1,6,7, Olufunmilola Oyebamiji2, Sayali Talware2, Sharmila Selvaraj2, Preethi Krishnan3,6, Farooq Syed1,6,7, Huanmei Wu2, Carmella Evans-Molina 1,3,4,5,6,7,8* Departments of 1Pediatrics, 3Medicine, 4Anatomy, Cell Biology & Physiology, 5Biochemistry & Molecular Biology, the 6Center for Diabetes & Metabolic Diseases, and the 7Herman B. Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202; 2Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202; 8Roudebush VA Medical Center, Indianapolis, IN 46202. *Corresponding Author(s): Carmella Evans-Molina, MD, PhD ([email protected]) Indiana University School of Medicine, 635 Barnhill Drive, MS 2031A, Indianapolis, IN 46202, Telephone: (317) 274-4145, Fax (317) 274-4107 Running Title: Golgi Stress Response in Diabetes Word Count: 4358 Number of Figures: 6 Keywords: Golgi apparatus stress, Islets, β cell, Type 1 diabetes, Type 2 diabetes 1 Diabetes Publish Ahead of Print, published online August 20, 2020 Diabetes Page 2 of 781 ABSTRACT The Golgi apparatus (GA) is an important site of insulin processing and granule maturation, but whether GA organelle dysfunction and GA stress are present in the diabetic β-cell has not been tested. We utilized an informatics-based approach to develop a transcriptional signature of β-cell GA stress using existing RNA sequencing and microarray datasets generated using human islets from donors with diabetes and islets where type 1(T1D) and type 2 diabetes (T2D) had been modeled ex vivo. To narrow our results to GA-specific genes, we applied a filter set of 1,030 genes accepted as GA associated. -
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Patterns of DNA methylation on the human X chromosome and use in analyzing X-chromosome inactivation by Allison Marie Cotton B.Sc., The University of Guelph, 2005 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in The Faculty of Graduate Studies (Medical Genetics) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) January 2012 © Allison Marie Cotton, 2012 Abstract The process of X-chromosome inactivation achieves dosage compensation between mammalian males and females. In females one X chromosome is transcriptionally silenced through a variety of epigenetic modifications including DNA methylation. Most X-linked genes are subject to X-chromosome inactivation and only expressed from the active X chromosome. On the inactive X chromosome, the CpG island promoters of genes subject to X-chromosome inactivation are methylated in their promoter regions, while genes which escape from X- chromosome inactivation have unmethylated CpG island promoters on both the active and inactive X chromosomes. The first objective of this thesis was to determine if the DNA methylation of CpG island promoters could be used to accurately predict X chromosome inactivation status. The second objective was to use DNA methylation to predict X-chromosome inactivation status in a variety of tissues. A comparison of blood, muscle, kidney and neural tissues revealed tissue-specific X-chromosome inactivation, in which 12% of genes escaped from X-chromosome inactivation in some, but not all, tissues. X-linked DNA methylation analysis of placental tissues predicted four times higher escape from X-chromosome inactivation than in any other tissue. Despite the hypomethylation of repetitive elements on both the X chromosome and the autosomes, no changes were detected in the frequency or intensity of placental Cot-1 holes. -
Molecular and Cellular Mechanisms of the Angiogenic Effect of Poly(Methacrylic Acid-Co-Methyl Methacrylate) Beads
Molecular and Cellular Mechanisms of the Angiogenic Effect of Poly(methacrylic acid-co-methyl methacrylate) Beads by Lindsay Elizabeth Fitzpatrick A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Institute of Biomaterials and Biomedical Engineering University of Toronto © Copyright by Lindsay Elizabeth Fitzpatrick 2012 Molecular and Cellular Mechanisms of the Angiogenic Effect of Poly(methacrylic acid-co-methyl methacrylate) Beads Lindsay Elizabeth Fitzpatrick Doctorate of Philosophy Institute of Biomaterials and Biomedical Engineering University of Toronto 2012 Abstract Poly(methacrylic acid -co- methyl methacrylate) beads were previously shown to have a therapeutic effect on wound closure through the promotion of angiogenesis. However, it was unclear how this polymer elicited its beneficial properties. The goal of this thesis was to characterize the host response to MAA beads by identifying molecules of interest involved in MAA-mediated angiogenesis (in comparison to poly(methyl methacrylate) beads, PMMA). Using a model of diabetic wound healing and a macrophage-like cell line (dTHP-1), eight molecules of interest were identified in the host response to MAA beads. Gene and/or protein expression analysis showed that MAA beads increased the expression of Shh, IL-1β, IL-6, TNF- α and Spry2, but decreased the expression of CXCL10 and CXCL12, compared to PMMA and no beads. MAA beads also appeared to modulate the expression of OPN. In vivo, the global gene expression of OPN was increased in wounds treated with MAA beads, compared to PMMA and no beads. In contrast, dTHP-1 decreased OPN gene expression compared to PMMA and no beads, but expressed the same amount of secreted OPN, suggesting that the cells decreased the expression of the intracellular isoform of OPN. -
Supp Table 1.Pdf
Upregulated genes in Hdac8 null cranial neural crest cells fold change Gene Symbol Gene Title 134.39 Stmn4 stathmin-like 4 46.05 Lhx1 LIM homeobox protein 1 31.45 Lect2 leukocyte cell-derived chemotaxin 2 31.09 Zfp108 zinc finger protein 108 27.74 0710007G10Rik RIKEN cDNA 0710007G10 gene 26.31 1700019O17Rik RIKEN cDNA 1700019O17 gene 25.72 Cyb561 Cytochrome b-561 25.35 Tsc22d1 TSC22 domain family, member 1 25.27 4921513I08Rik RIKEN cDNA 4921513I08 gene 24.58 Ofa oncofetal antigen 24.47 B230112I24Rik RIKEN cDNA B230112I24 gene 23.86 Uty ubiquitously transcribed tetratricopeptide repeat gene, Y chromosome 22.84 D8Ertd268e DNA segment, Chr 8, ERATO Doi 268, expressed 19.78 Dag1 Dystroglycan 1 19.74 Pkn1 protein kinase N1 18.64 Cts8 cathepsin 8 18.23 1500012D20Rik RIKEN cDNA 1500012D20 gene 18.09 Slc43a2 solute carrier family 43, member 2 17.17 Pcm1 Pericentriolar material 1 17.17 Prg2 proteoglycan 2, bone marrow 17.11 LOC671579 hypothetical protein LOC671579 17.11 Slco1a5 solute carrier organic anion transporter family, member 1a5 17.02 Fbxl7 F-box and leucine-rich repeat protein 7 17.02 Kcns2 K+ voltage-gated channel, subfamily S, 2 16.93 AW493845 Expressed sequence AW493845 16.12 1600014K23Rik RIKEN cDNA 1600014K23 gene 15.71 Cst8 cystatin 8 (cystatin-related epididymal spermatogenic) 15.68 4922502D21Rik RIKEN cDNA 4922502D21 gene 15.32 2810011L19Rik RIKEN cDNA 2810011L19 gene 15.08 Btbd9 BTB (POZ) domain containing 9 14.77 Hoxa11os homeo box A11, opposite strand transcript 14.74 Obp1a odorant binding protein Ia 14.72 ORF28 open reading -
(12) Patent Application Publication (10) Pub. No.: US 2012/0264.634 A1 Amersdorfer Et Al
US 20120264.634A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2012/0264.634 A1 Amersdorfer et al. (43) Pub. Date: Oct. 18, 2012 (54) MARKER SEQUENCES FOR PANCREATIC Publication Classification CANCER DISEASES, PANCREATIC (51) Int. Cl. CARCINOMIA AND USE THEREOF C40B 30/04 (2006.01) GOIN 2L/64 (2006.01) (75) Inventors: Peter Amersdorfer, Graz (AT); GOIN 27/72 (2006.01) Annabel Höpfner, Dortmund (DE); C07K I4/435 (2006.01) Angelika Lueking, Bochum (DE) C40B 40/06 (2006.01) C40B 40/10 (2006.01) CI2N 5/09 (2010.01) (73) Assignee: PROTAGEN Aktiengesellschaft, C7H 2L/04 (2006.01) Dortmund (DE) GOIN 33/574 (2006.01) GOIN 27/62 (2006.01) (21) Appl. No.: 13/498,964 (52) U.S. Cl. ........... 506/9:436/501; 435/6.14; 435/7.92; 506/16:506/18: 435/2:536/23.1; 530/350 (22) PCT Filed: Sep. 29, 2010 (57) ABSTRACT The present invention relates to novel marker sequences for (86). PCT No.: PCT/EP2010/064510 pancreatic cancer diseases, pancreatic carcinoma and the diagnostic use thereof together with a method for Screening of S371 (c)(1), potential active Substances for pancreatic cancer diseases, (2), (4) Date: Jun. 22, 2012 pancreatic carcinoma by means of these marker sequences. Furthermore, the invention relates to a diagnostic device con (30) Foreign Application Priority Data taining Such marker sequences for pancreatic cancer diseases, pancreatic carcinoma, in particular a protein biochip and the Sep. 29, 2009 (EP) .................................. O9171690.2 use thereof. Patent Application Publication Oct. 18, 2012 US 2012/0264.634 A1 US 2012/0264.634 A1 Oct. -
Fine Mapping Studies of Quantitative Trait Loci for Baseline Platelet Count in Mice and Humans
Fine mapping studies of quantitative trait loci for baseline platelet count in mice and humans A thesis submitted in fulfillment of the requirements for the degree of Doctor of Philosophy Melody C Caramins December 2010 University of New South Wales ORIGINALITY STATEMENT ‘I hereby declare that this submission is my own work and to the best of my knowledge it contains no materials previously published or written by another person, or substantial proportions of material which have been accepted for the award of any other degree or diploma at UNSW or any other educational institution, except where due acknowledgement is made in the thesis. Any contribution made to the research by others, with whom I have worked at UNSW or elsewhere, is explicitly acknowledged in the thesis. I also declare that the intellectual content of this thesis is the product of my own work, except to the extent that assistance from others in the project's design and conception or in style, presentation and linguistic expression is acknowledged.’ Signed …………………………………………….............. Date …………………………………………….............. This thesis is dedicated to my father. Dad, thanks for the genes – and the environment! ACKNOWLEDGEMENTS “Nothing can come out of nothing, any more than a thing can go back to nothing.” - Marcus Aurelius Antoninus A PhD thesis is never the work of one person in isolation from the world at large. I would like to thank the following people, without whom this work would not have existed. Thank you firstly, to all my teachers, of which there have been many. Undoubtedly, the greatest debt is owed to my supervisor, Dr Michael Buckley. -
Cellular and Molecular Signatures in the Disease Tissue of Early
Cellular and Molecular Signatures in the Disease Tissue of Early Rheumatoid Arthritis Stratify Clinical Response to csDMARD-Therapy and Predict Radiographic Progression Frances Humby1,* Myles Lewis1,* Nandhini Ramamoorthi2, Jason Hackney3, Michael Barnes1, Michele Bombardieri1, Francesca Setiadi2, Stephen Kelly1, Fabiola Bene1, Maria di Cicco1, Sudeh Riahi1, Vidalba Rocher-Ros1, Nora Ng1, Ilias Lazorou1, Rebecca E. Hands1, Desiree van der Heijde4, Robert Landewé5, Annette van der Helm-van Mil4, Alberto Cauli6, Iain B. McInnes7, Christopher D. Buckley8, Ernest Choy9, Peter Taylor10, Michael J. Townsend2 & Costantino Pitzalis1 1Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK. Departments of 2Biomarker Discovery OMNI, 3Bioinformatics and Computational Biology, Genentech Research and Early Development, South San Francisco, California 94080 USA 4Department of Rheumatology, Leiden University Medical Center, The Netherlands 5Department of Clinical Immunology & Rheumatology, Amsterdam Rheumatology & Immunology Center, Amsterdam, The Netherlands 6Rheumatology Unit, Department of Medical Sciences, Policlinico of the University of Cagliari, Cagliari, Italy 7Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow G12 8TA, UK 8Rheumatology Research Group, Institute of Inflammation and Ageing (IIA), University of Birmingham, Birmingham B15 2WB, UK 9Institute of