CDK5RAP2 Primary Microcephaly Is Associated With
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Mutations in CDK5RAP2 Cause Seckel Syndrome Go¨ Khan Yigit1,2,3,A, Karen E
ORIGINAL ARTICLE Mutations in CDK5RAP2 cause Seckel syndrome Go¨ khan Yigit1,2,3,a, Karen E. Brown4,a,Hu¨ lya Kayserili5, Esther Pohl1,2,3, Almuth Caliebe6, Diana Zahnleiter7, Elisabeth Rosser8, Nina Bo¨ gershausen1,2,3, Zehra Oya Uyguner5, Umut Altunoglu5, Gudrun Nu¨ rnberg2,3,9, Peter Nu¨ rnberg2,3,9, Anita Rauch10, Yun Li1,2,3, Christian Thomas Thiel7 & Bernd Wollnik1,2,3 1Institute of Human Genetics, University of Cologne, Cologne, Germany 2Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany 3Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany 4Chromosome Biology Group, MRC Clinical Sciences Centre, Imperial College School of Medicine, Hammersmith Hospital, London, W12 0NN, UK 5Department of Medical Genetics, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey 6Institute of Human Genetics, Christian-Albrechts-University of Kiel, Kiel, Germany 7Institute of Human Genetics, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany 8Department of Clinical Genetics, Great Ormond Street Hospital for Children, London, WC1N 3EH, UK 9Cologne Center for Genomics, University of Cologne, Cologne, Germany 10Institute of Medical Genetics, University of Zurich, Schwerzenbach-Zurich, Switzerland Keywords Abstract CDK5RAP2, CEP215, microcephaly, primordial dwarfism, Seckel syndrome Seckel syndrome is a heterogeneous, autosomal recessive disorder marked by pre- natal proportionate short stature, severe microcephaly, intellectual disability, and Correspondence characteristic facial features. Here, we describe the novel homozygous splice-site Bernd Wollnik, Center for Molecular mutations c.383+1G>C and c.4005-9A>GinCDK5RAP2 in two consanguineous Medicine Cologne (CMMC) and Institute of families with Seckel syndrome. CDK5RAP2 (CEP215) encodes a centrosomal pro- Human Genetics, University of Cologne, tein which is known to be essential for centrosomal cohesion and proper spindle Kerpener Str. -
Supplemental Information Proximity Interactions Among Centrosome
Current Biology, Volume 24 Supplemental Information Proximity Interactions among Centrosome Components Identify Regulators of Centriole Duplication Elif Nur Firat-Karalar, Navin Rauniyar, John R. Yates III, and Tim Stearns Figure S1 A Myc Streptavidin -tubulin Merge Myc Streptavidin -tubulin Merge BirA*-PLK4 BirA*-CEP63 BirA*- CEP192 BirA*- CEP152 - BirA*-CCDC67 BirA* CEP152 CPAP BirA*- B C Streptavidin PCM1 Merge Myc-BirA* -CEP63 PCM1 -tubulin Merge BirA*- CEP63 DMSO - BirA* CEP63 nocodazole BirA*- CCDC67 Figure S2 A GFP – + – + GFP-CEP152 + – + – Myc-CDK5RAP2 + + + + (225 kDa) Myc-CDK5RAP2 (216 kDa) GFP-CEP152 (27 kDa) GFP Input (5%) IP: GFP B GFP-CEP152 truncation proteins Inputs (5%) IP: GFP kDa 1-7481-10441-1290218-1654749-16541045-16541-7481-10441-1290218-1654749-16541045-1654 250- Myc-CDK5RAP2 150- 150- 100- 75- GFP-CEP152 Figure S3 A B CEP63 – – + – – + GFP CCDC14 KIAA0753 Centrosome + – – + – – GFP-CCDC14 CEP152 binding binding binding targeting – + – – + – GFP-KIAA0753 GFP-KIAA0753 (140 kDa) 1-496 N M C 150- 100- GFP-CCDC14 (115 kDa) 1-424 N M – 136-496 M C – 50- CEP63 (63 kDa) 1-135 N – 37- GFP (27 kDa) 136-424 M – kDa 425-496 C – – Inputs (2%) IP: GFP C GFP-CEP63 truncation proteins D GFP-CEP63 truncation proteins Inputs (5%) IP: GFP Inputs (5%) IP: GFP kDa kDa 1-135136-424425-4961-424136-496FL Ctl 1-135136-424425-4961-424136-496FL Ctl 1-135136-424425-4961-424136-496FL Ctl 1-135136-424425-4961-424136-496FL Ctl Myc- 150- Myc- 100- CCDC14 KIAA0753 100- 100- 75- 75- GFP- GFP- 50- CEP63 50- CEP63 37- 37- Figure S4 A siCtl -
Genetic and Genomic Analysis of Hyperlipidemia, Obesity and Diabetes Using (C57BL/6J × TALLYHO/Jngj) F2 Mice
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Nutrition Publications and Other Works Nutrition 12-19-2010 Genetic and genomic analysis of hyperlipidemia, obesity and diabetes using (C57BL/6J × TALLYHO/JngJ) F2 mice Taryn P. Stewart Marshall University Hyoung Y. Kim University of Tennessee - Knoxville, [email protected] Arnold M. Saxton University of Tennessee - Knoxville, [email protected] Jung H. Kim Marshall University Follow this and additional works at: https://trace.tennessee.edu/utk_nutrpubs Part of the Animal Sciences Commons, and the Nutrition Commons Recommended Citation BMC Genomics 2010, 11:713 doi:10.1186/1471-2164-11-713 This Article is brought to you for free and open access by the Nutrition at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Nutrition Publications and Other Works by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. Stewart et al. BMC Genomics 2010, 11:713 http://www.biomedcentral.com/1471-2164/11/713 RESEARCH ARTICLE Open Access Genetic and genomic analysis of hyperlipidemia, obesity and diabetes using (C57BL/6J × TALLYHO/JngJ) F2 mice Taryn P Stewart1, Hyoung Yon Kim2, Arnold M Saxton3, Jung Han Kim1* Abstract Background: Type 2 diabetes (T2D) is the most common form of diabetes in humans and is closely associated with dyslipidemia and obesity that magnifies the mortality and morbidity related to T2D. The genetic contribution to human T2D and related metabolic disorders is evident, and mostly follows polygenic inheritance. The TALLYHO/ JngJ (TH) mice are a polygenic model for T2D characterized by obesity, hyperinsulinemia, impaired glucose uptake and tolerance, hyperlipidemia, and hyperglycemia. -
Autosomal Recessive Primary Microcephaly
Mahmood et al. Orphanet Journal of Rare Diseases 2011, 6:39 http://www.ojrd.com/content/6/1/39 REVIEW Open Access Autosomal recessive primary microcephaly (MCPH): clinical manifestations, genetic heterogeneity and mutation continuum Saqib Mahmood1, Wasim Ahmad2 and Muhammad J Hassan3* Abstract Autosomal Recessive Primary Microcephaly (MCPH) is a rare disorder of neurogenic mitosis characterized by reduced head circumference at birth with variable degree of mental retardation. In MCPH patients, brain size reduced to almost one-third of its original volume due to reduced number of generated cerebral cortical neurons during embryonic neurogensis. So far, seven genetic loci (MCPH1-7) for this condition have been mapped with seven corresponding genes (MCPH1, WDR62, CDK5RAP2, CEP152, ASPM, CENPJ, and STIL) identified from different world populations. Contribution of ASPM and WDR62 gene mutations in MCPH World wide is more than 50%. By and large, primary microcephaly patients are phenotypically indistinguishable, however, recent studies in patients with mutations in MCPH1, WDR62 and ASPM genes showed a broader clinical and/or cellular phenotype. It has been proposed that mutations in MCPH genes can cause the disease phenotype by disturbing: 1) orientation of mitotic spindles, 2) chromosome condensation mechanism during embryonic neurogenesis, 3) DNA damage- response signaling, 4) transcriptional regulations and microtubule dynamics, 5) certain unknown centrosomal mechanisms that control the number of neurons generated by neural precursor cells. Recent discoveries of mammalian models for MCPH have open up horizons for researchers to add more knowledge regarding the etiology and pathophysiology of MCPH. High incidence of MCPH in Pakistani population reflects the most probable involvement of consanguinity. -
Molecular Genetics of Microcephaly Primary Hereditary: an Overview
brain sciences Review Molecular Genetics of Microcephaly Primary Hereditary: An Overview Nikistratos Siskos † , Electra Stylianopoulou †, Georgios Skavdis and Maria E. Grigoriou * Department of Molecular Biology & Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece; [email protected] (N.S.); [email protected] (E.S.); [email protected] (G.S.) * Correspondence: [email protected] † Equal contribution. Abstract: MicroCephaly Primary Hereditary (MCPH) is a rare congenital neurodevelopmental disorder characterized by a significant reduction of the occipitofrontal head circumference and mild to moderate mental disability. Patients have small brains, though with overall normal architecture; therefore, studying MCPH can reveal not only the pathological mechanisms leading to this condition, but also the mechanisms operating during normal development. MCPH is genetically heterogeneous, with 27 genes listed so far in the Online Mendelian Inheritance in Man (OMIM) database. In this review, we discuss the role of MCPH proteins and delineate the molecular mechanisms and common pathways in which they participate. Keywords: microcephaly; MCPH; MCPH1–MCPH27; molecular genetics; cell cycle 1. Introduction Citation: Siskos, N.; Stylianopoulou, Microcephaly, from the Greek word µικρoκεϕαλi´α (mikrokephalia), meaning small E.; Skavdis, G.; Grigoriou, M.E. head, is a term used to describe a cranium with reduction of the occipitofrontal head circum- Molecular Genetics of Microcephaly ference equal, or more that teo standard deviations -
E-Mutpath: Computational Modelling Reveals the Functional Landscape of Genetic Mutations Rewiring Interactome Networks
bioRxiv preprint doi: https://doi.org/10.1101/2020.08.22.262386; this version posted August 24, 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. e-MutPath: Computational modelling reveals the functional landscape of genetic mutations rewiring interactome networks Yongsheng Li1, Daniel J. McGrail1, Brandon Burgman2,3, S. Stephen Yi2,3,4,5 and Nidhi Sahni1,6,7,8,* 1Department oF Systems Biology, The University oF Texas MD Anderson Cancer Center, Houston, TX 77030, USA 2Department oF Oncology, Livestrong Cancer Institutes, Dell Medical School, The University oF Texas at Austin, Austin, TX 78712, USA 3Institute For Cellular and Molecular Biology (ICMB), The University oF Texas at Austin, Austin, TX 78712, USA 4Institute For Computational Engineering and Sciences (ICES), The University oF Texas at Austin, Austin, TX 78712, USA 5Department oF Biomedical Engineering, Cockrell School of Engineering, The University oF Texas at Austin, Austin, TX 78712, USA 6Department oF Epigenetics and Molecular Carcinogenesis, The University oF Texas MD Anderson Science Park, Smithville, TX 78957, USA 7Department oF BioinFormatics and Computational Biology, The University oF Texas MD Anderson Cancer Center, Houston, TX 77030, USA 8Program in Quantitative and Computational Biosciences (QCB), Baylor College oF Medicine, Houston, TX 77030, USA *To whom correspondence should be addressed. Nidhi Sahni. Tel: +1 512 2379506; Email: [email protected] 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.08.22.262386; this version posted August 24, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. -
CDK5RAP2 Functions in Centrosome to Spindle Pole Attachment and DNA Damage Response
JCB: Article CDK5RAP2 functions in centrosome to spindle pole attachment and DNA damage response Alexis R. Barr,1,2 John V. Kilmartin,3 and Fanni Gergely1,2 1Cancer Research UK Cambridge Research Institute, Cambridge CB2 0RE, England, UK 2Department of Oncology, University of Cambridge, Cambridge CB2 3RA, England, UK 3Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, England, UK he centrosomal protein, CDK5RAP2, is mutated fail to recruit specific PCM components that mediate in primary microcephaly, a neurodevelopmental attachment to spindle poles. Furthermore, we show that Tdisorder characterized by reduced brain size. The the CNN1 domain enforces cohesion between parental Drosophila melanogaster homologue of CDK5RAP2, centrioles during interphase and promotes efficient DNA centrosomin (Cnn), maintains the pericentriolar matrix damage–induced G2 cell cycle arrest. Because mitotic (PCM) around centrioles during mitosis. In this study, we spindle positioning, asymmetric centrosome inheritance, demonstrate a similar role for CDK5RAP2 in vertebrate and DNA damage signaling have all been implicated cells. By disrupting two evolutionarily conserved domains in cell fate determination during neurogenesis, our find- of CDK5RAP2, CNN1 and CNN2, in the avian B cell line ings provide novel insight into how impaired CDK5RAP2 DT40, we find that both domains are essential for link- function could cause premature depletion of neural stem ing centrosomes to mitotic spindle poles. Although struc- cells and thereby microcephaly. turally intact, centrosomes lacking the CNN1 domain Introduction The centrosome consists of a pair of centrioles surrounded by 1995; Merdes et al., 1996, 2000; Gordon et al., 2001; Quintyne the pericentriolar matrix (PCM). In most animal cells, it is the and Schroer, 2002; Silk et al., 2009). -
Genetic and Informatic Analyses Implicate Kif12 As a Candidate Gene Within the Mpkd2 Locus That Modulates Renal Cystic Disease Severity in the Cys1cpk Mouse
Himmelfarb Health Sciences Library, The George Washington University Health Sciences Research Commons Pediatrics Faculty Publications Pediatrics 1-1-2015 Genetic and Informatic Analyses Implicate Kif12 as a Candidate Gene within the Mpkd2 Locus That Modulates Renal Cystic Disease Severity in the Cys1cpk Mouse. Michal Mrug Juling Zhou Chaozhe Yang Bruce J Aronow Xiangqin Cui See next page for additional authors Follow this and additional works at: https://hsrc.himmelfarb.gwu.edu/smhs_peds_facpubs Part of the Pediatrics Commons Recommended Citation Mrug, M., Zhou, J., Yang, C., Aronow, B. J., Cui, X., Schoeb, T. R., … Guay-Woodford, L. M. (2015). Genetic and Informatic Analyses Implicate Kif12 as a Candidate Gene within the Mpkd2 Locus That Modulates Renal Cystic Disease Severity in the Cys1cpk Mouse. PLoS ONE, 10(8), e0135678. http://doi.org/10.1371/journal.pone.0135678 This Journal Article is brought to you for free and open access by the Pediatrics at Health Sciences Research Commons. It has been accepted for inclusion in Pediatrics Faculty Publications by an authorized administrator of Health Sciences Research Commons. For more information, please contact [email protected]. Authors Michal Mrug, Juling Zhou, Chaozhe Yang, Bruce J Aronow, Xiangqin Cui, Trenton R Schoeb, Gene P Siegal, Bradley K Yoder, and Lisa M. Guay-Woodford This journal article is available at Health Sciences Research Commons: https://hsrc.himmelfarb.gwu.edu/smhs_peds_facpubs/1445 RESEARCH ARTICLE Genetic and Informatic Analyses Implicate Kif12 as a Candidate Gene within the Mpkd2 Locus That Modulates Renal Cystic Disease Severity in the Cys1cpk Mouse Michal Mrug1,7*, Juling Zhou1, Chaozhe Yang2,8, Bruce J. -
Modifier Genes in Microcephaly: a Report on WDR62, CEP63, RAD50
G C A T T A C G G C A T genes Article Modifier Genes in Microcephaly: A Report on WDR62, CEP63, RAD50 and PCNT Variants Exacerbating Disease Caused by Biallelic Mutations of ASPM and CENPJ Ehtisham Ul Haq Makhdoom 1,2,3,†, Syeda Seema Waseem 1,4,†, Maria Iqbal 1,2,4, Uzma Abdullah 5 , Ghulam Hussain 3, Maria Asif 1,4, Birgit Budde 1 , Wolfgang Höhne 1, Sigrid Tinschert 6, Saadia Maryam Saadi 2 , Hammad Yousaf 2, Zafar Ali 7, Ambrin Fatima 8, Emrah Kaygusuz 9 , Ayaz Khan 2 , Muhammad Jameel 2, Sheraz Khan 2 , Muhammad Tariq 2 , Iram Anjum 10 , Janine Altmüller 1, Holger Thiele 1, Stefan Höning 4, Shahid Mahmood Baig 2,8,11, Peter Nürnberg 1,12 and Muhammad Sajid Hussain 1,4,12,* 1 Cologne Center for Genomics (CCG), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; [email protected] (E.U.H.M.); [email protected] (S.S.W.); [email protected] (M.I.); [email protected] (M.A.); [email protected] (B.B.); [email protected] (W.H.); [email protected] (J.A.); [email protected] (H.T.); [email protected] (P.N.) 2 Human Molecular Genetics Laboratory, Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering (NIBGE) College, PIEAS, Faisalabad 38000, Pakistan; [email protected] (S.M.S.); [email protected] (H.Y.); [email protected] (A.K.); [email protected] (M.J.); [email protected] (S.K.); [email protected] (M.T.); [email protected] (S.M.B.) 3 Citation: Makhdoom, E.U.H.; Neurochemicalbiology and Genetics Laboratory (NGL), Department of Physiology, Faculty of Life Sciences, Waseem, S.S.; Iqbal, M.; Abdullah, U.; Government College University, Faisalabad 38000, Pakistan; [email protected] 4 Hussain, G.; Asif, M.; Budde, B.; Institute of Biochemistry I, Medical Faculty, University of Cologne, 50931 Cologne, Germany; [email protected] Höhne, W.; Tinschert, S.; Saadi, 5 University Institute of Biochemistry and Biotechnology (UIBB), PMAS-Arid Agriculture University, S.M.; et al. -
Amit C, Et Al. Functional Genomics Study of Sick Neonate Affected with Copyright© Amit C, Et Al
Genomics & Gene Therapy International Journal ISSN: 2642-1194 Functional Genomics Study of Sick Neonate Affected with Chromosomal Rearrangements and Correlated with Clinical Phenotype: A 2 Year Survey of ICU in a Tertiary Care Hospital in Kolkata Puspal D1, Sudipa C1, Amit C1*, Tushar KS2 and Santanu B2 Research Article 1 Institute of Genetic Engineering, 30 Thakurhat Road, Kolkata-128, India Volume 1 Issue 1 2Dr. BC Roy Post Graduate Institute of Pediatric Science, Phoolbagan Main Road, Received Date: June 29, 2017 Kolkata-59, India Published Date: August 17, 2017 DOI: 10.23880/ggtij-16000101 *Corresponding author: Amit Chakravarty, Purbagana, 5 Ram Mohan Mallick Garden Lane, Beliaghata, Kolkata-10, India, Tel: 9903850960; Email: [email protected] . Abstract In order to assess major chromosomal abnormalities among sick neonate with dysmorphic feature, mental retardation and delayed milestones in Kolkata, a chromosome aberration survey initiated in collaboration with Dr B.C. Roy Post Graduate Institute for Pediatric Science (Kolkata) is in progress. Since two years, we have screened about 120 sick neonates and children with indicated cases as per clinical findings. Cytogenetic analysis of blood lymphocytes were studied with High Resolution GTG-banding analysis by using Chromosome profiling (Cyto-vision software 3.6) on their chromosomes. The result shows significant amount of numerical and structural chromosomal abnormality. Among 120 selected sick neonates with dysmorphic fatures and pediatric cases, 22 cases have different chromosomal abnormalities. Among them 14 cases have numerical and 8 cases have structural chromosomal abnormality. The present genetic screening result shows presence of syndromes caused by numerical chromosomal abnormality like Down Syndromes [1] Edwards syndrome, Patau syndrome, Turner syndrome [2] Sex Chromosomes [3] Others [1] and structural chromosome rearrangements [4]. -
De Novo Transcriptome Assembly and Positive Selection Analysis of An
Lan et al. BMC Genomics (2018) 19:394 https://doi.org/10.1186/s12864-018-4720-z RESEARCHARTICLE Open Access De novo transcriptome assembly and positive selection analysis of an individual deep-sea fish Yi Lan1, Jin Sun1, Ting Xu2, Chong Chen3, Renmao Tian1, Jian-Wen Qiu2 and Pei-Yuan Qian1* Abstract Background: High hydrostatic pressure and low temperatures make the deep sea a harsh environment for life forms. Actin organization and microtubules assembly, which are essential for intracellular transport and cell motility, can be disrupted by high hydrostatic pressure. High hydrostatic pressure can also damage DNA. Nucleic acids exposed to low temperatures can form secondary structures that hinder genetic information processing. To study how deep-sea creatures adapt to such a hostile environment, one of the most straightforward ways is to sequence and compare their genes with those of their shallow-water relatives. Results: We captured an individual of the fish species Aldrovandia affinis, which is a typical deep-sea inhabitant, from the Okinawa Trough at a depth of 1550 m using a remotely operated vehicle (ROV). We sequenced its transcriptome and analyzed its molecular adaptation. We obtained 27,633 protein coding sequences using an Illumina platform and compared them with those of several shallow-water fish species. Analysis of 4918 single-copy orthologs identified 138 positively selected genes in A. affinis, including genes involved in microtubule regulation. Particularly, functional domains related to cold shock as well as DNA repair are exposed to positive selection pressure in both deep-sea fish and hadal amphipod. Conclusions: Overall, we have identified a set of positively selected genes related to cytoskeleton structures, DNA repair and genetic information processing, which shed light on molecular adaptation to the deep sea. -
Common Neonatal Syndromes
Seminars in Fetal & Neonatal Medicine (2005) 10, 221e231 www.elsevierhealth.com/journals/siny Common neonatal syndromes Mark H. Lipson* Department of Genetics, Permanente Medical Group, Sacramento, CA, USA KEYWORDS Summary The process of diagnosis of genetic syndromes in the newborn period is Fluorescence in situ carried out in the context of parental anxiety and the grief following an often- hybridisation (FISH); unexpected outcome after a long pregnancy. The nursery staffs invariably have Telomere; a strong interest in giving the family proper information about prognosis. This Uniparental disomy; article is intended to focus on an approach to the diagnosis of genetic syndromes Imprinting and to discuss specific syndromes that may be seen with some frequency in the nursery. Ó 2005 Elsevier Ltd. All rights reserved. A baby has just been born. The exhausted but a geneticist or genetics centre is essential at some jubilant parents are finally able to see the result of point in the diagnostic process. A diagnosis is not the previous 9 months of morning sickness, weight the end of the process but merely the beginning. gain and water retention. But instead of unmiti- Genetic counseling is a process whereby a con- gated excitement and happiness, there is fear, firmed or possible genetic condition is reviewed uncertainty and disbelief. The reaction of the with the family, and the etiology, natural history, nurses and doctors has indicated that there is prognosis, treatment possibilities, risk of recur- a problem with the baby. What does it mean? Will rence, potential for prenatal diagnosis and the the baby be OK? What can be done to correct the availability of pertinent reading materials and problem? It is in this context that syndrome support groups are discussed at length.