Global Proteome of Lonp1+/- Mouse Embryonal Fibroblasts Reveals Impact on Respiratory Chain, but No Interdependence Between Eral1 and Mitoribosomes
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18P Deletions FTNW
18p deletions rarechromo.org 18p deletions A deletion of 18p means that the cells of the body have a small but variable amount of genetic material missing from one of their 46 chromosomes – chromosome 18. For healthy development, chromosomes should contain just the right amount of material – not too much and not too little. Like most other chromosome disorders, 18p deletions increase the risk of birth defects, developmental delay and learning difficulties. However, the problems vary and depend very much on what genetic material is missing. Chromosomes are made up mostly of DNA and are the structures in the nucleus of the body’s cells that carry genetic information (known as genes), telling the body how to develop, grow and function. Base pairs are the chemicals in DNA that form the ends of the ‘rungs’ of its ladder-like structure. Chromosomes usually come in pairs, one chromosome from each parent. Of these 46 chromosomes, two are a pair of sex chromosomes, XX (a pair of X chromosomes) in females and XY (one X chromosome and one Y chromosome) in males. The remaining 44 chromosomes are grouped in 22 pairs, numbered 1 to 22 approximately from the largest to the smallest. Each chromosome has a short ( p) arm (shown at the top in the diagram on the facing page) and a long ( q) arm (the bottom part of the chromosome). People with an 18p deletion have one intact chromosome 18, but the other is missing a smaller or larger piece from the short arm and this can affect their learning and physical development. -
Proteomic Analysis of the Role of the Quality Control Protease LONP1 in Mitochondrial Protein Aggregation
bioRxiv preprint doi: https://doi.org/10.1101/2021.04.12.439502; this version posted April 16, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity.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. Proteomic analysis of the role of the quality control protease LONP1 in mitochondrial protein aggregation Karen Pollecker1, Marc Sylvester2 and Wolfgang Voos1,* 1Institute of Biochemistry and Molecular Biology (IBMB), University of Bonn, Faculty of Medicine, Nussallee 11, 53115 Bonn, Germany 2Core facility for mass spectrometry, Institute of Biochemistry and Molecular Biology (IBMB), University of Bonn, Faculty of Medicine, Nussallee 11, 53115 Bonn, Germany *Corresponding author Email: [email protected] Phone: +49-228-732426 Abbreviations: AAA+, ATPases associated with a wide variety of cellular activities; Δψ, mitochondrial membrane potential; gKD, genetic knockdown; HSP, heat shock protein; m, mature form; mt, mitochondrial; p, precursor form; PQC, protein quality control; qMS, quantitative mass spectrometry; ROS, reactive oxygen species; SILAC, stable isotope labeling with amino acids in cell culture; siRNA, small interfering RNA; TIM, preprotein translocase complex of the inner membrane; TMRE, tetramethylrhodamine; TOM, preprotein translocase complex of the outer membrane; UPRmt, mitochondrial unfolded protein response; WT, wild type. bioRxiv preprint doi: https://doi.org/10.1101/2021.04.12.439502; this version posted April 16, 2021. 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. -
Establishing the Pathogenicity of Novel Mitochondrial DNA Sequence Variations: a Cell and Molecular Biology Approach
Mafalda Rita Avó Bacalhau Establishing the Pathogenicity of Novel Mitochondrial DNA Sequence Variations: a Cell and Molecular Biology Approach Tese de doutoramento do Programa de Doutoramento em Ciências da Saúde, ramo de Ciências Biomédicas, orientada pela Professora Doutora Maria Manuela Monteiro Grazina e co-orientada pelo Professor Doutor Henrique Manuel Paixão dos Santos Girão e pela Professora Doutora Lee-Jun C. Wong e apresentada à Faculdade de Medicina da Universidade de Coimbra Julho 2017 Faculty of Medicine Establishing the pathogenicity of novel mitochondrial DNA sequence variations: a cell and molecular biology approach Mafalda Rita Avó Bacalhau Tese de doutoramento do programa em Ciências da Saúde, ramo de Ciências Biomédicas, realizada sob a orientação científica da Professora Doutora Maria Manuela Monteiro Grazina; e co-orientação do Professor Doutor Henrique Manuel Paixão dos Santos Girão e da Professora Doutora Lee-Jun C. Wong, apresentada à Faculdade de Medicina da Universidade de Coimbra. Julho, 2017 Copyright© Mafalda Bacalhau e Manuela Grazina, 2017 Esta cópia da tese é fornecida na condição de que quem a consulta reconhece que os direitos de autor são pertença do autor da tese e do orientador científico e que nenhuma citação ou informação obtida a partir dela pode ser publicada sem a referência apropriada e autorização. This copy of the thesis has been supplied on the condition that anyone who consults it recognizes that its copyright belongs to its author and scientific supervisor and that no quotation from the -
A Novel AFG3L2 Mutation in a German Family with Young Onset, Slow
Zühlke et al. Cerebellum & Ataxias (2015) 2:19 DOI 10.1186/s40673-015-0038-7 RESEARCH Open Access Spinocerebellar ataxia 28: a novel AFG3L2 mutation in a German family with young onset, slow progression and saccadic slowing Christine Zühlke1†, Barbara Mikat2†, Dagmar Timmann3, Dagmar Wieczorek2, Gabriele Gillessen-Kaesbach1 and Katrin Bürk4,5* Abstract Background: Spinocerebellar ataxia type 28 (SCA28) is related to mutations of the ATPase family gene 3-like 2 gene (AFG3L2). To date, 13 private missense mutations have been identified in families of French, Italian, and German ancestry, but overall, the disorder seems to be rare in Europe. Here, we report a kindred of German ancestry with four affected family members presenting with slowly progressive ataxia, mild pyramidal tract signs and slow saccades. Methods: After excluding repeat expansions in the genes for SCA1-3, 6-8, 10, 12, and 17, Sanger sequencing of the coding regions of TTBK2 (SCA11), KCNC3 (SCA13), PRKCG (SCA14), FGF14 (SCA27) and AFG3L2 (SCA28) was performed. The 17 coding exons of AFG3L2 with flanking intronic sequences were amplified by PCR and sequenced on both strands. Results: Sequencing detected a novel potential missense mutation (p.Y689N) in the C-terminal proteolytic domain, the mutational hotspot of AFG3L2. The online programme “PolyPhen-2” classifies this amino acid exchange as probably damaging (score 0.990). Similarly to most of the published SCA28 mutations, the novel mutation is located within exon 16. Mutations in exon 16 alter the proteolytic activity of the protease AFG3L2 that is highly expressed in Purkinje cells. Conclusions: Genetic testing should be considered in dominant ataxia with pyramidal tract signs and saccadic slowing. -
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. -
TMEM59 (NM 004872) Human Recombinant Protein Product Data
OriGene Technologies, Inc. 9620 Medical Center Drive, Ste 200 Rockville, MD 20850, US Phone: +1-888-267-4436 [email protected] EU: [email protected] CN: [email protected] Product datasheet for TP305624 TMEM59 (NM_004872) Human Recombinant Protein Product data: Product Type: Recombinant Proteins Description: Recombinant protein of human transmembrane protein 59 (TMEM59) Species: Human Expression Host: HEK293T Tag: C-Myc/DDK Predicted MW: 36 kDa Concentration: >50 ug/mL as determined by microplate BCA method Purity: > 80% as determined by SDS-PAGE and Coomassie blue staining Buffer: 25 mM Tris.HCl, pH 7.3, 100 mM glycine, 10% glycerol Preparation: Recombinant protein was captured through anti-DDK affinity column followed by conventional chromatography steps. Storage: Store at -80°C. Stability: Stable for 12 months from the date of receipt of the product under proper storage and handling conditions. Avoid repeated freeze-thaw cycles. RefSeq: NP_004863 Locus ID: 9528 UniProt ID: Q9BXS4 RefSeq Size: 1709 Cytogenetics: 1p32.3 RefSeq ORF: 972 Synonyms: C1orf8; DCF1; HSPC001; PRO195; UNQ169 Summary: This gene encodes a protein shown to regulate autophagy in response to bacterial infection. This protein may also regulate the retention of amyloid precursor protein (APP) in the Golgi apparatus through its control of APP glycosylation. Overexpression of this protein has been found to promote apoptosis in a glioma cell line. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2015] Protein Families: Transmembrane This product is to be used for laboratory only. Not for diagnostic or therapeutic use. View online » ©2021 OriGene Technologies, Inc., 9620 Medical Center Drive, Ste 200, Rockville, MD 20850, US 1 / 2 TMEM59 (NM_004872) Human Recombinant Protein – TP305624 Product images: Coomassie blue staining of purified TMEM59 protein (Cat# TP305624). -
M-AAA and I-AAA Complexes Coordinate to Regulate OMA1, The
© 2018. Published by The Company of Biologists Ltd | Journal of Cell Science (2018) 131, jcs213546. doi:10.1242/jcs.213546 SHORT REPORT m-AAA and i-AAA complexes coordinate to regulate OMA1, the stress-activated supervisor of mitochondrial dynamics Francesco Consolato1,*, Francesca Maltecca1,*, Susanna Tulli1, Irene Sambri2 and Giorgio Casari1,2,‡ ABSTRACT and fission (L and S forms, respectively) (Anand et al., 2014). The The proteolytic processing of dynamin-like GTPase OPA1, mediated balance between long and short OPA1 forms is finely regulated by two by the activity of both YME1L1 [intermembrane (i)-AAA protease mitochondrial inner membrane proteases, OMA1 (Ehses et al., 2009) complex] and OMA1, is a crucial step in the regulation of mitochondrial and YME1L1, which cleave OPA1 at different sites (Song et al., 2007). dynamics. OMA1 is a zinc metallopeptidase of the inner mitochondrial The intermembrane (i)-AAA protease YME1L1 exposes its membrane that undergoes pre-activating proteolytic and auto- catalytic domain to the intermembrane space (Leonhard et al., 1996) proteolytic cleavage after mitochondrial import. Here, we identify and is responsible for generation of the S2-OPA1 form by proteolytic AFG3L2 [matrix (m)-AAA complex] as the major protease mediating cleavage, whereas OMA1 gives rise to the S1 and S3 forms (Anand this event, which acts by maturing the 60 kDa pre-pro-OMA1 to the et al., 2014; MacVicar and Langer, 2016; Quirós et al., 2012). 40 kDa pro-OMA1 form by severing the N-terminal portion without OMA1 harbours an M48 metallopeptidase domain and is the major recognizing a specific consensus sequence. Therefore, m-AAA and player in OPA1 processing under conditions of stress (Quirós et al., Δϕ i-AAA complexes coordinately regulate OMA1 processing and 2012). -
Atpase Domain AFG3L2 Mutations Alter OPA1 Processing and Cause Optic Neuropathy
RESEARCH ARTICLE ATPase Domain AFG3L2 Mutations Alter OPA1 Processing and Cause Optic Neuropathy Leonardo Caporali, ScD, PhD ,1 Stefania Magri, ScD, PhD,2 Andrea Legati, ScD, PhD,2 Valentina Del Dotto, ScD, PhD,3 Francesca Tagliavini, ScD, PhD,1 Francesca Balistreri, ScD,2 Alessia Nasca, ScD,2 Chiara La Morgia, MD, PhD,1,3 Michele Carbonelli, MD,1 Maria L. Valentino, MD,1,3 Eleonora Lamantea, ScD,2 Silvia Baratta, ScD,2 Ludger Schöls, MD,4,5 Rebecca Schüle, MD,4,5 Piero Barboni, MD,6,7 Maria L. Cascavilla, MD,7 Alessandra Maresca, ScD, PhD,1 Mariantonietta Capristo, ScD, PhD,1 Anna Ardissone, MD,8 Davide Pareyson, MD ,9 Gabriella Cammarata, MD,10 Lisa Melzi, MD,10 Massimo Zeviani, MD, PhD,11 Lorenzo Peverelli, MD,12 Costanza Lamperti, MD, PhD,2 Stefania B. Marzoli, MD,10 Mingyan Fang, MD ,13 Matthis Synofzik, MD,4,5 Daniele Ghezzi, ScD, PhD ,2,14 Valerio Carelli, MD, PhD,1,3 and Franco Taroni, MD 2 Objective: Dominant optic atrophy (DOA) is the most common inherited optic neuropathy, with a prevalence of 1:12,000 to 1:25,000. OPA1 mutations are found in 70% of DOA patients, with a significant number remaining undiagnosed. Methods: We screened 286 index cases presenting optic atrophy, negative for OPA1 mutations, by targeted next gen- eration sequencing or whole exome sequencing. Pathogenicity and molecular mechanisms of the identified variants were studied in yeast and patient-derived fibroblasts. Results: Twelve cases (4%) were found to carry novel variants in AFG3L2, a gene that has been associated with autoso- mal dominant spinocerebellar ataxia 28 (SCA28). -
1 Supporting Information for a Microrna Network Regulates
Supporting Information for A microRNA Network Regulates Expression and Biosynthesis of CFTR and CFTR-ΔF508 Shyam Ramachandrana,b, Philip H. Karpc, Peng Jiangc, Lynda S. Ostedgaardc, Amy E. Walza, John T. Fishere, Shaf Keshavjeeh, Kim A. Lennoxi, Ashley M. Jacobii, Scott D. Rosei, Mark A. Behlkei, Michael J. Welshb,c,d,g, Yi Xingb,c,f, Paul B. McCray Jr.a,b,c Author Affiliations: Department of Pediatricsa, Interdisciplinary Program in Geneticsb, Departments of Internal Medicinec, Molecular Physiology and Biophysicsd, Anatomy and Cell Biologye, Biomedical Engineeringf, Howard Hughes Medical Instituteg, Carver College of Medicine, University of Iowa, Iowa City, IA-52242 Division of Thoracic Surgeryh, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Canada-M5G 2C4 Integrated DNA Technologiesi, Coralville, IA-52241 To whom correspondence should be addressed: Email: [email protected] (M.J.W.); yi- [email protected] (Y.X.); Email: [email protected] (P.B.M.) This PDF file includes: Materials and Methods References Fig. S1. miR-138 regulates SIN3A in a dose-dependent and site-specific manner. Fig. S2. miR-138 regulates endogenous SIN3A protein expression. Fig. S3. miR-138 regulates endogenous CFTR protein expression in Calu-3 cells. Fig. S4. miR-138 regulates endogenous CFTR protein expression in primary human airway epithelia. Fig. S5. miR-138 regulates CFTR expression in HeLa cells. Fig. S6. miR-138 regulates CFTR expression in HEK293T cells. Fig. S7. HeLa cells exhibit CFTR channel activity. Fig. S8. miR-138 improves CFTR processing. Fig. S9. miR-138 improves CFTR-ΔF508 processing. Fig. S10. SIN3A inhibition yields partial rescue of Cl- transport in CF epithelia. -
Characterising the Role of Valosin Containing Protein (VCP) in Autophagy and Cell Differentiation
Characterising the role of Valosin Containing Protein (VCP) in autophagy and cell differentiation. Autophagy vs. aberrant osteoclastogenesis in the IBMPFD mouse model Doctor of Philosophy Thesis, October 2015 Milka B. Budnik-Zawilska Project Supervisors: Dr Giles Watts, Prof Ian Clark Norwich Medical School, Health Policy and Practice University of East Anglia This copy of the thesis has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with the author and that use of any information derived there from must be in accordance with current UK Copyright Law. In addition, any quotation or extract must include full attribution. 1 Contents LIST OF TABLES ............................................................................................................................ 5 LIST OF FIGURES .......................................................................................................................... 6 ABSTRACT .................................................................................................................................... 9 ABBREVATIONS ......................................................................................................................... 10 ACKNOWLEDGMENTS ............................................................................................................... 15 CHAPTER 1: INTRODUCTION .................................................................................................... 17 1.1 Mutations in the VCP gene cause a -
A Case of Congenital Central Hypothyroidism Caused by a Novel Variant (Gln1255ter) in IGSF1 Gene
Türkkahraman D et al. A Novel Variant in IGSF1 Gene CASE REPORT DO I: 10.4274/jcrpe.galenos.2020.2020.0149 J Clin Res Pediatr Endocrinol 2021;13(3):353-357 A Case of Congenital Central Hypothyroidism Caused by a Novel Variant (Gln1255Ter) in IGSF1 Gene Doğa Türkkahraman1, Nimet Karataş Torun2, Nadide Cemre Randa3 1University of Health Sciences Turkey, Antalya Training and Research Hospital, Clinic of Pediatric Endocrinology, Antalya, Turkey 2University of Healty Sciences Turkey, Antalya Training and Research Hospital, Clinic of Pediatrics, Antalya, Turkey 3University of Healty Sciences Turkey, Antalya Training and Research Hospital, Clinic of Medical Genetics, Antalya, Turkey What is already known on this topic? Mutations in the immunoglobulin superfamily, member 1 (IGSF1) gene that mainly regulates pituitary thyrotrope function lead to X-linked hypothyroidism characterized by congenital hypothyroidism of central origin and testicular enlargement. The clinical features associated with IGSF1 mutations are variable, but prolactin and/or growth hormone deficiency, and discordance between timing of testicular growth and rise of serum testosterone levels could be seen. What this study adds? Genetic analysis revealed a novel c.3763C>T variant in the IGSF1 gene. To our knowledge, this is the first reported case of IGSF1 deficiency from Turkey. Additionally, as in our case, early testicular enlargement but delayed testosterone rise should be evaluated in all boys with central hypothyroidism, as macro-orchidism is usually seen in adulthood. Abstract Loss-of-function mutations in the immunoglobulin superfamily, member 1 (IGSF1) gene cause X-linked central hypothyroidism, and therefore its mutation affects mainly males. Central hypothyroidism in males is the hallmark of the disorder, however some patients additionally present with hypoprolactinemia, transient and partial growth hormone deficiency, early/normal timing of testicular enlargement but delayed testosterone rise in puberty, and adult macro-orchidism. -
About the Existence of Common Determinants of Gene Expression In
González-Prendes et al. BMC Genomics (2019) 20:518 https://doi.org/10.1186/s12864-019-5889-5 RESEARCH ARTICLE Open Access About the existence of common determinants of gene expression in the porcine liver and skeletal muscle Rayner González-Prendes1,6†, Emilio Mármol-Sánchez1†, Raquel Quintanilla2, Anna Castelló1,3, Ali Zidi1, Yuliaxis Ramayo-Caldas1, Tainã Figueiredo Cardoso1,4, Arianna Manunza1,ÁngelaCánovas1,5 and Marcel Amills 1,3* Abstract Background: The comparison of expression QTL (eQTL) maps obtained in different tissues is an essential step to understand how gene expression is genetically regulated in a context-dependent manner. In the current work, we have compared the transcriptomic and eQTL profiles of two porcine tissues (skeletal muscle and liver) which typically show highly divergent expression profiles, in 103 Duroc pigs genotyped with the Porcine SNP60 BeadChip (Illumina) and with available microarray-based measurements of hepatic and muscle mRNA levels. Since structural variation could have effects on gene expression, we have also investigated the co-localization of cis-eQTLs with copy number variant regions (CNVR) segregating in this Duroc population. Results: The analysis of differential expresssion revealed the existence of 1204 and 1490 probes that were overexpressed and underexpressed in the gluteus medius muscle when compared to liver, respectively (|fold- change| > 1.5, q-value < 0.05). By performing genome scans in 103 Duroc pigs with available expression and genotypic data, we identified 76 and 28 genome-wide significant cis-eQTLs regulating gene expression in the gluteus medius muscle and liver, respectively. Twelve of these cis-eQTLs were shared by both tissues (i.e.