Targeted Genes and Methodology Details for Neuromuscular Genetic Panels
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Dynamin Functions and Ligands: Classical Mechanisms Behind
1521-0111/91/2/123–134$25.00 http://dx.doi.org/10.1124/mol.116.105064 MOLECULAR PHARMACOLOGY Mol Pharmacol 91:123–134, February 2017 Copyright ª 2017 by The American Society for Pharmacology and Experimental Therapeutics MINIREVIEW Dynamin Functions and Ligands: Classical Mechanisms Behind Mahaveer Singh, Hemant R. Jadhav, and Tanya Bhatt Department of Pharmacy, Birla Institute of Technology and Sciences Pilani, Pilani Campus, Rajasthan, India Received May 5, 2016; accepted November 17, 2016 Downloaded from ABSTRACT Dynamin is a GTPase that plays a vital role in clathrin-dependent pathophysiology of various disorders, such as Alzheimer’s disease, endocytosis and other vesicular trafficking processes by acting Parkinson’s disease, Huntington’s disease, Charcot-Marie-Tooth as a pair of molecular scissors for newly formed vesicles originating disease, heart failure, schizophrenia, epilepsy, cancer, dominant ’ from the plasma membrane. Dynamins and related proteins are optic atrophy, osteoporosis, and Down s syndrome. This review is molpharm.aspetjournals.org important components for the cleavage of clathrin-coated vesicles, an attempt to illustrate the dynamin-related mechanisms involved phagosomes, and mitochondria. These proteins help in organelle in the above-mentioned disorders and to help medicinal chemists division, viral resistance, and mitochondrial fusion/fission. Dys- to design novel dynamin ligands, which could be useful in the function and mutations in dynamin have been implicated in the treatment of dynamin-related disorders. Introduction GTP hydrolysis–dependent conformational change of GTPase dynamin assists in membrane fission, leading to the generation Dynamins were originally discovered in the brain and identi- of endocytic vesicles (Praefcke and McMahon, 2004; Ferguson at ASPET Journals on September 23, 2021 fied as microtubule binding partners. -
LDB3 Monoclonal Antibody (M06), Gene Alias: CYPHER, FLJ35865, KIAA01613, Clone 3C8 KIAA0613, ORACLE, PDLIM6, ZASP, Ldb3z1, Ldb3z4
LDB3 monoclonal antibody (M06), Gene Alias: CYPHER, FLJ35865, KIAA01613, clone 3C8 KIAA0613, ORACLE, PDLIM6, ZASP, ldb3z1, ldb3z4 Gene Summary: This gene encodes a PDZ Catalog Number: H00011155-M06 domain-containing protein. PDZ motifs are modular Regulatory Status: For research use only (RUO) protein-protein interaction domains consisting of 80-120 amino acid residues. PDZ domain-containing proteins Product Description: Mouse monoclonal antibody interact with each other in cytoskeletal assembly or with raised against a full-length recombinant LDB3. other proteins involved in targeting and clustering of membrane proteins. The protein encoded by this gene Clone Name: 3C8 interacts with alpha-actinin-2 through its N-terminal PDZ domain and with protein kinase C via its C-terminal LIM Immunogen: LDB3 (AAH10929, 1 a.a. ~ 283 a.a) domains. The LIM domain is a cysteine-rich motif full-length recombinant protein with GST tag. MW of the defined by 50-60 amino acids containing two GST tag alone is 26 KDa. zinc-binding modules. This protein also interacts with all three members of the myozenin family. Mutations in this Sequence: gene have been associated with myofibrillar myopathy MSYSVTLTGPGPWGFRLQGGKDFNMPLTISRITPGSK and dilated cardiomyopathy. Alternatively spliced AAQSQLSQGDLVVAIDGVNTDTMTHLEAQNKIKSASY transcript variants encoding different isoforms have been NLSLTLQKSKRPIPISTTAPPVQTPLPVIPHQKVVVNSP identified; all isoforms have N-terminal PDZ domains ANADYQERFNPSALKDSALSTHKPIEVKGLGGKATIIHA while only longer isoforms (1 and 2) have C-terminal -
Role of Oxidative Stress in the Pathogenesis of Amyotrophic Lateral Sclerosis: Antioxidant Metalloenzymes and Therapeutic Strategies
biomolecules Review Role of Oxidative Stress in the Pathogenesis of Amyotrophic Lateral Sclerosis: Antioxidant Metalloenzymes and Therapeutic Strategies Pavlína Hemerková * and Martin Vališ Department of Neurology, Charles University, Faculty of Medicine and University Hospital Hradec Kralove, 500 05 Hradec Kralove, Czech Republic; [email protected] * Correspondence: [email protected]; Tel.: +420-731-304-371 Abstract: Amyotrophic lateral sclerosis (ALS) affects motor neurons in the cerebral cortex, brainstem and spinal cord and leads to death due to respiratory failure within three to five years. Although the clinical symptoms of this disease were first described in 1869 and it is the most common motor neuron disease and the most common neurodegenerative disease in middle-aged individuals, the exact etiopathogenesis of ALS remains unclear and it remains incurable. However, free oxygen radicals (i.e., molecules containing one or more free electrons) are known to contribute to the pathogenesis of this disease as they very readily bind intracellular structures, leading to functional impairment. Antioxidant enzymes, which are often metalloenzymes, inactivate free oxygen radicals by converting them into a less harmful substance. One of the most important antioxidant enzymes is Cu2+Zn2+ superoxide dismutase (SOD1), which is mutated in 20% of cases of the familial form of ALS (fALS) and up to 7% of sporadic ALS (sALS) cases. In addition, the proper functioning of catalase and glutathione peroxidase (GPx) is essential for antioxidant protection. In this review article, we focus on the mechanisms through which these enzymes are involved in the antioxidant response to oxidative Citation: Hemerková, P.; Vališ, M. Role of Oxidative Stress in the stress and thus the pathogenesis of ALS and their potential as therapeutic targets. -
192ICM ICBIC Abstracts
Workshop Lecture Journal of Inorganic Biochemistry 96 (2003) 3 Structural Genomics Antonio Rosato, Magnetic Resonance Center, University of Florence, Italy To realize the true value of the wealth of data provided by genome sequencing data, it is necessary to relate them to the functional properties of the proteins they encode. Since the biological function of a protein is determined by its 3D structure, the systematic determination of proteins’ structures on a genome-wide scale is a crucial step in any (post-)genomic effort, which may (or may not) provide initial hints on the function. This is what is commonly referred to as ‘Structural Genomics’ (or Structural Proteomics). Because of the huge number of systems into question, all the complex steps necessary for structure determination must be optimized, streamlined and, possibly, robotized in order to shrink the time needed to solve each protein structure. This approach is dubbed ‘high-throughput’ (HTP) and is an intrinsic feature of Structural Genomics. What can be the relationship between Biological Inorganic Chemistry and Structural Genomics? A major challenge is that to reconcile the concept of HTP with the care that metalloproteins most often require because of their metal cofactors. The identifi cation of metalloproteins is even not explicitly taken into account in purely Structural Genomics projects, nor is any methodology particularly developed for them. To create true correlations between Biological Inorganic Chemistry and Structural Genomics it is necessary to develop new computational tools (e.g. to identify metalloproteins in databanks, or to correctly model their structures), as well as new methodological approaches to HTP metalloprotein expression/purifi cation and structural characterization. -
Blueprint Genetics ENO3 Single Gene Test
ENO3 single gene test Test code: S00654 Phenotype information Glycogen storage disease Panels that include the ENO3 gene Glycogen Storage Disorder Panel Comprehensive Metabolism Panel Hypoglycemia, Hyperinsulinism and Ketone Metabolism Panel Metabolic Myopathy and Rhabdomyolysis Panel Test Strengths The strengths of this test include: CAP accredited laboratory CLIA-certified personnel performing clinical testing in a CLIA-certified laboratory Powerful sequencing technologies, advanced target enrichment methods and precision bioinformatics pipelines ensure superior analytical performance Careful construction of clinically effective and scientifically justified gene panels Our Nucleus online portal providing transparent and easy access to quality and performance data at the patient level Our publicly available analytic validation demonstrating complete details of test performance ~2,000 non-coding disease causing variants in our clinical grade NGS assay for panels (please see ‘Non-coding disease causing variants covered by this test’) Our rigorous variant classification scheme Our systematic clinical interpretation workflow using proprietary software enabling accurate and traceable processing of NGS data Our comprehensive clinical statements Test Limitations This test does not detect the following: Complex inversions Gene conversions Balanced translocations Mitochondrial DNA variants Repeat expansion disorders unless specifically mentioned Non-coding variants deeper than ±20 base pairs from exon-intron boundary unless otherwise indicated (please see above non-coding variants covered by the test). This test may not reliably detect the following: Low level mosaicism (variant with a minor allele fraction of 14.6% is detected with 90% probability) Stretches of mononucleotide repeats Indels larger than 50bp Single exon deletions or duplications Variants within pseudogene regions/duplicated segments The sensitivity of this test may be reduced if DNA is extracted by a laboratory other than Blueprint Genetics. -
The Role of Z-Disc Proteins in Myopathy and Cardiomyopathy
International Journal of Molecular Sciences Review The Role of Z-disc Proteins in Myopathy and Cardiomyopathy Kirsty Wadmore 1,†, Amar J. Azad 1,† and Katja Gehmlich 1,2,* 1 Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK; [email protected] (K.W.); [email protected] (A.J.A.) 2 Division of Cardiovascular Medicine, Radcliffe Department of Medicine and British Heart Foundation Centre of Research Excellence Oxford, University of Oxford, Oxford OX3 9DU, UK * Correspondence: [email protected]; Tel.: +44-121-414-8259 † These authors contributed equally. Abstract: The Z-disc acts as a protein-rich structure to tether thin filament in the contractile units, the sarcomeres, of striated muscle cells. Proteins found in the Z-disc are integral for maintaining the architecture of the sarcomere. They also enable it to function as a (bio-mechanical) signalling hub. Numerous proteins interact in the Z-disc to facilitate force transduction and intracellular signalling in both cardiac and skeletal muscle. This review will focus on six key Z-disc proteins: α-actinin 2, filamin C, myopalladin, myotilin, telethonin and Z-disc alternatively spliced PDZ-motif (ZASP), which have all been linked to myopathies and cardiomyopathies. We will summarise pathogenic variants identified in the six genes coding for these proteins and look at their involvement in myopathy and cardiomyopathy. Listing the Minor Allele Frequency (MAF) of these variants in the Genome Aggregation Database (GnomAD) version 3.1 will help to critically re-evaluate pathogenicity based on variant frequency in normal population cohorts. -
Genequery™ Human Skeletal Muscle Contraction And
GeneQuery™ Human Skeletal Muscle Contraction and Muscular Dystrophies qPCR Array Kit (GQH-SKC) Catalog #GK065 Product Description ScienCell's GeneQuery™ Human Skeletal Muscle Contraction and Muscular Dystrophies qPCR Array (GQH-SKC) profiles 88 key genes involved in the contraction of skeletal muscle. There are three major muscle types in the human body: skeletal, cardiac, and smooth. Skeletal muscle is a striated muscle that relaxes and contracts to generate movement and force in the body. Of the three main muscle types, it is the only one under voluntary control. Neuromuscular diseases involving skeletal muscle dysfunction are very diverse and range from myopathies to muscular dystrophies. Below are brief examples of how included genes may be grouped according to their function in skeletal muscle biology: • Myogenesis: MYOD1, MYOG, PAX3, UTRN, MYF6, MDTN • Contractility: MYH2, SLC2A4, LMNA, DYSF, APT2A1 • Sarcomere Assembly : NEB, TRIM63, TTN, CAPN3, ACTA1 • Muscle Atrophy: NOS2, TRIM63, FOXO1, MAPK8, AKT1 • Muscular Dystrophy Development: POMT2, FKRP, ANO5, FRG1, SGCB Note : all gene names follow their official symbols by the Human Genome Organization Gene Nomenclature Committee (HGNC). GeneQuery™ qPCR array kits are qPCR ready in a 96-well plate format, with each well containing one primer set that can specifically recognize and efficiently amplify a target gene's cDNA. The carefully designed primers ensure that: (i) the optimal annealing temperature in qPCR analysis is 65°C (with 2 mM Mg 2+ , and no DMSO); (ii) the primer set recognizes all known transcript variants of target gene, unless otherwise indicated; and (iii) only one gene is amplified. Each primer set has been validated by qPCR with melt curve analysis, and gel electrophoresis. -
Defining Functional Interactions During Biogenesis of Epithelial Junctions
ARTICLE Received 11 Dec 2015 | Accepted 13 Oct 2016 | Published 6 Dec 2016 | Updated 5 Jan 2017 DOI: 10.1038/ncomms13542 OPEN Defining functional interactions during biogenesis of epithelial junctions J.C. Erasmus1,*, S. Bruche1,*,w, L. Pizarro1,2,*, N. Maimari1,3,*, T. Poggioli1,w, C. Tomlinson4,J.Lees5, I. Zalivina1,w, A. Wheeler1,w, A. Alberts6, A. Russo2 & V.M.M. Braga1 In spite of extensive recent progress, a comprehensive understanding of how actin cytoskeleton remodelling supports stable junctions remains to be established. Here we design a platform that integrates actin functions with optimized phenotypic clustering and identify new cytoskeletal proteins, their functional hierarchy and pathways that modulate E-cadherin adhesion. Depletion of EEF1A, an actin bundling protein, increases E-cadherin levels at junctions without a corresponding reinforcement of cell–cell contacts. This unexpected result reflects a more dynamic and mobile junctional actin in EEF1A-depleted cells. A partner for EEF1A in cadherin contact maintenance is the formin DIAPH2, which interacts with EEF1A. In contrast, depletion of either the endocytic regulator TRIP10 or the Rho GTPase activator VAV2 reduces E-cadherin levels at junctions. TRIP10 binds to and requires VAV2 function for its junctional localization. Overall, we present new conceptual insights on junction stabilization, which integrate known and novel pathways with impact for epithelial morphogenesis, homeostasis and diseases. 1 National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK. 2 Computing Department, Imperial College London, London SW7 2AZ, UK. 3 Bioengineering Department, Faculty of Engineering, Imperial College London, London SW7 2AZ, UK. 4 Department of Surgery & Cancer, Faculty of Medicine, Imperial College London, London SW7 2AZ, UK. -
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. -
Conserved and Novel Properties of Clathrin-Mediated Endocytosis in Dictyostelium Discoideum" (2012)
Rockefeller University Digital Commons @ RU Student Theses and Dissertations 2012 Conserved and Novel Properties of Clathrin- Mediated Endocytosis in Dictyostelium Discoideum Laura Macro Follow this and additional works at: http://digitalcommons.rockefeller.edu/ student_theses_and_dissertations Part of the Life Sciences Commons Recommended Citation Macro, Laura, "Conserved and Novel Properties of Clathrin-Mediated Endocytosis in Dictyostelium Discoideum" (2012). Student Theses and Dissertations. Paper 163. This Thesis is brought to you for free and open access by Digital Commons @ RU. It has been accepted for inclusion in Student Theses and Dissertations by an authorized administrator of Digital Commons @ RU. For more information, please contact [email protected]. CONSERVED AND NOVEL PROPERTIES OF CLATHRIN- MEDIATED ENDOCYTOSIS IN DICTYOSTELIUM DISCOIDEUM A Thesis Presented to the Faculty of The Rockefeller University in Partial Fulfillment of the Requirements for the degree of Doctor of Philosophy by Laura Macro June 2012 © Copyright by Laura Macro 2012 CONSERVED AND NOVEL PROPERTIES OF CLATHRIN- MEDIATED ENDOCYTOSIS IN DICTYOSTELIUM DISCOIDEUM Laura Macro, Ph.D. The Rockefeller University 2012 The protein clathrin mediates one of the major pathways of endocytosis from the extracellular milieu and plasma membrane. Clathrin functions with a network of interacting accessory proteins, one of which is the adaptor complex AP-2, to co-ordinate vesicle formation. Disruption of genes involved in clathrin-mediated endocytosis causes embryonic lethality in multicellular animals suggesting that clathrin-mediated endocytosis is a fundamental cellular process. However, loss of clathrin-mediated endocytosis genes in single cell eukaryotes, such as S.cerevisiae (yeast), does not cause lethality, suggesting that clathrin may convey specific advantages for multicellularity. -
Genetic Heterogeneity of Motor Neuropathies
Genetic heterogeneity of motor neuropathies Boglarka Bansagi, MD ABSTRACT Helen Griffin, PhD Objective: To study the prevalence, molecular cause, and clinical presentation of hereditary motor Roger G. Whittaker, MD, neuropathies in a large cohort of patients from the North of England. PhD Methods: Detailed neurologic and electrophysiologic assessments and next-generation panel Thalia Antoniadi, PhD testing or whole exome sequencing were performed in 105 patients with clinical symptoms of Teresinha Evangelista, distal hereditary motor neuropathy (dHMN, 64 patients), axonal motor neuropathy (motor MD Charcot-Marie-Tooth disease [CMT2], 16 patients), or complex neurologic disease predominantly James Miller, MD, PhD affecting the motor nerves (hereditary motor neuropathy plus, 25 patients). Mark Greenslade, PhD Natalie Forester, PhD Results: The prevalence of dHMN is 2.14 affected individuals per 100,000 inhabitants (95% – Jennifer Duff, PhD confidence interval 1.62 2.66) in the North of England. Causative mutations were identified in Anna Bradshaw 26 out of 73 index patients (35.6%). The diagnostic rate in the dHMN subgroup was 32.5%, Stephanie Kleinle, PhD which is higher than previously reported (20%). We detected a significant defect of neuromus- Veronika Boczonadi, PhD cular transmission in 7 cases and identified potentially causative mutations in 4 patients with Hannah Steele, MD multifocal demyelinating motor neuropathy. Venkateswaran Ramesh, Conclusions: Many of the genes were shared between dHMN and motor CMT2, indicating identical MD disease mechanisms; therefore, we suggest changing the classification and including dHMN also as Edit Franko, MD, PhD a subcategory of Charcot-Marie-Tooth disease. Abnormal neuromuscular transmission in some Angela Pyle, PhD genetic forms provides a treatable target to develop therapies. -
Role of Non-Motile Microtubule-Associated Proteins in Virus Trafficking
BioMol Concepts 2016; 7(5-6): 283–292 Review Débora M. Portilho, Roger Persson and Nathalie Arhel* Role of non-motile microtubule-associated proteins in virus trafficking DOI 10.1515/bmc-2016-0018 continuously switching between phases of growth and Received June 21, 2016; accepted November 4, 2016 shrinkage, referred to as dynamic instability (1). MTs are involved in a wide range of cellular functions, including Abstract: Viruses are entirely dependent on their ability cell morphology, division, motility, and organelle posi- to infect a host cell in order to replicate. To reach their site tioning, as well as in disease, such as neurodegenerative of replication as rapidly and efficiently as possible follow- disease, infection and immunity. Once the MT filaments ing cell entry, many have evolved elaborate mechanisms are formed by nucleation at the centrosome and elon- to hijack the cellular transport machinery to propel them- gated from the subunit pool, their stability and mechani- selves across the cytoplasm. Long-range movements have cal properties are often controlled by a set of proteins that been shown to involve motor proteins along microtubules bind along the polymer. These so-called microtubule- (MTs) and direct interactions between viral proteins and associated proteins (MAPs, not to be confused with mito- dynein and/or kinesin motors have been well described. gen-activated proteins) are essential for the regulation of Although less well-characterized, it is also becoming MT dynamics. increasingly clear that non-motile microtubule-associated Several types of MAPs have been identified in eukary- proteins (MAPs), including structural MAPs of the MAP1 otes, including MT motors, MT plus-end and minus-end and MAP2 families, and microtubule plus-end tracking tracking proteins (+ TIPs, − TIPs), centrosome-associated proteins (+ TIPs), can also promote viral trafficking in proteins and structural MAPs.