Structures and Mechanism of Dipeptidyl Peptidases 8 and 9
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Genetic Analysis of Retinopathy in Type 1 Diabetes
Genetic Analysis of Retinopathy in Type 1 Diabetes by Sayed Mohsen Hosseini A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Institute of Medical Science University of Toronto © Copyright by S. Mohsen Hosseini 2014 Genetic Analysis of Retinopathy in Type 1 Diabetes Sayed Mohsen Hosseini Doctor of Philosophy Institute of Medical Science University of Toronto 2014 Abstract Diabetic retinopathy (DR) is a leading cause of blindness worldwide. Several lines of evidence suggest a genetic contribution to the risk of DR; however, no genetic variant has shown convincing association with DR in genome-wide association studies (GWAS). To identify common polymorphisms associated with DR, meta-GWAS were performed in three type 1 diabetes cohorts of White subjects: Diabetes Complications and Control Trial (DCCT, n=1304), Wisconsin Epidemiologic Study of Diabetic Retinopathy (WESDR, n=603) and Renin-Angiotensin System Study (RASS, n=239). Severe (SDR) and mild (MDR) retinopathy outcomes were defined based on repeated fundus photographs in each study graded for retinopathy severity on the Early Treatment Diabetic Retinopathy Study (ETDRS) scale. Multivariable models accounted for glycemia (measured by A1C), diabetes duration and other relevant covariates in the association analyses of additive genotypes with SDR and MDR. Fixed-effects meta- analysis was used to combine the results of GWAS performed separately in WESDR, ii RASS and subgroups of DCCT, defined by cohort and treatment group. Top association signals were prioritized for replication, based on previous supporting knowledge from the literature, followed by replication in three independent white T1D studies: Genesis-GeneDiab (n=502), Steno (n=936) and FinnDiane (n=2194). -
Whole-Genome Microarray Detects Deletions and Loss of Heterozygosity of Chromosome 3 Occurring Exclusively in Metastasizing Uveal Melanoma
Anatomy and Pathology Whole-Genome Microarray Detects Deletions and Loss of Heterozygosity of Chromosome 3 Occurring Exclusively in Metastasizing Uveal Melanoma Sarah L. Lake,1 Sarah E. Coupland,1 Azzam F. G. Taktak,2 and Bertil E. Damato3 PURPOSE. To detect deletions and loss of heterozygosity of disease is fatal in 92% of patients within 2 years of diagnosis. chromosome 3 in a rare subset of fatal, disomy 3 uveal mela- Clinical and histopathologic risk factors for UM metastasis noma (UM), undetectable by fluorescence in situ hybridization include large basal tumor diameter (LBD), ciliary body involve- (FISH). ment, epithelioid cytomorphology, extracellular matrix peri- ϩ ETHODS odic acid-Schiff-positive (PAS ) loops, and high mitotic M . Multiplex ligation-dependent probe amplification 3,4 5 (MLPA) with the P027 UM assay was performed on formalin- count. Prescher et al. showed that a nonrandom genetic fixed, paraffin-embedded (FFPE) whole tumor sections from 19 change, monosomy 3, correlates strongly with metastatic death, and the correlation has since been confirmed by several disomy 3 metastasizing UMs. Whole-genome microarray analy- 3,6–10 ses using a single-nucleotide polymorphism microarray (aSNP) groups. Consequently, fluorescence in situ hybridization were performed on frozen tissue samples from four fatal dis- (FISH) detection of chromosome 3 using a centromeric probe omy 3 metastasizing UMs and three disomy 3 tumors with Ͼ5 became routine practice for UM prognostication; however, 5% years’ metastasis-free survival. to 20% of disomy 3 UM patients unexpectedly develop metas- tases.11 Attempts have therefore been made to identify the RESULTS. Two metastasizing UMs that had been classified as minimal region(s) of deletion on chromosome 3.12–15 Despite disomy 3 by FISH analysis of a small tumor sample were found these studies, little progress has been made in defining the key on MLPA analysis to show monosomy 3. -
Refinement and Discovery of New Hotspots of Copy-Number Variation
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector ARTICLE Refinement and Discovery of New Hotspots of Copy-Number Variation Associated with Autism Spectrum Disorder Santhosh Girirajan,1,5 Megan Y. Dennis,1,5 Carl Baker,1 Maika Malig,1 Bradley P. Coe,1 Catarina D. Campbell,1 Kenneth Mark,1 Tiffany H. Vu,1 Can Alkan,1 Ze Cheng,1 Leslie G. Biesecker,2 Raphael Bernier,3 and Evan E. Eichler1,4,* Rare copy-number variants (CNVs) have been implicated in autism and intellectual disability. These variants are large and affect many genes but lack clear specificity toward autism as opposed to developmental-delay phenotypes. We exploited the repeat architecture of the genome to target segmental duplication-mediated rearrangement hotspots (n ¼ 120, median size 1.78 Mbp, range 240 kbp to 13 Mbp) and smaller hotspots flanked by repetitive sequence (n ¼ 1,247, median size 79 kbp, range 3–96 kbp) in 2,588 autistic individuals from simplex and multiplex families and in 580 controls. Our analysis identified several recurrent large hotspot events, including association with 1q21 duplications, which are more likely to be identified in individuals with autism than in those with developmental delay (p ¼ 0.01; OR ¼ 2.7). Within larger hotspots, we also identified smaller atypical CNVs that implicated CHD1L and ACACA for the 1q21 and 17q12 deletions, respectively. Our analysis, however, suggested no overall increase in the burden of smaller hotspots in autistic individuals as compared to controls. By focusing on gene-disruptive events, we identified recurrent CNVs, including DPP10, PLCB1, TRPM1, NRXN1, FHIT, and HYDIN, that are enriched in autism. -
DPP9 Deficiency: an Inflammasomopathy
medRxiv preprint doi: https://doi.org/10.1101/2021.01.31.21250067; this version posted June 9, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted medRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission. DPP9 deficiency: an Inflammasomopathy which can be rescued by lowering NLRP1/IL-1 signaling Cassandra R. HARAPAS1,2,$, Kim S. ROBINSON3,$, Kenneth LAY4,$, Jasmine WONG4, Ricardo MORENO TRASPAS4 , Nasrin NABAVIZADEH4, Annick RAAS-ROTHSCHILD5, Bertrand BOISSON6,7,8, Scott B. DRUTMAN6, Pawat LAOHAMONTHONKUL1,2, Devon BONNER9, Mark GORRELL10, Sophia DAVIDSON1,2, Chien-Hsiung YU1,2, Hulya KAYSERILI11, Nevin HATIPOGLU12, Jean-Laurent CASANOVA6,7,8,13,14, Jonathan A. BERNSTEIN15, Franklin L. ZHONG3,16,*, Seth L. MASTERS1,2,* , Bruno REVERSADE4,10,17,* Affiliations: 1. Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia 2. Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia 3. Skin Research Institute of Singapore (SRIS), A*STAR, Singapore 4. Genome Institute of Singapore (GIS), A*STAR, Singapore 5. The Institute for Rare Diseases, The Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel 6. St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, USA 7. Paris University, Imagine Institute, Paris, France NOTE: This preprint reports new research that has not been certified by peer review and should not be used to guide clinical practice. 1 medRxiv preprint doi: https://doi.org/10.1101/2021.01.31.21250067; this version posted June 9, 2021. -
Catalytic Properties and Inhibition of Proline-Specific Dipeptidyl Peptidases II, IV and VII
UC Berkeley UC Berkeley Previously Published Works Title Catalytic properties and inhibition of proline-specific dipeptidyl peptidases II, IV and VII Permalink https://escholarship.org/uc/item/4nf146zf Journal Biochemical Journal, 371 ISSN 0264-6021 Authors Leiting, B Pryor, K D Wu, J K et al. Publication Date 2003-04-01 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Biochem. J. (2003) 371, 525–532 (Printed in Great Britain) 525 Catalytic properties and inhibition of proline-specific dipeptidyl peptidases II, IV and VII Barbara LEITING*1, KellyAnn D. PRYOR*, Joseph K. WU*, Frank MARSILIO*, Reshma A. PATEL*, Charles S. CRAIK†, Jonathan A. ELLMAN‡, Richard T. CUMMINGS* and Nancy A. THORNBERRY* *Department of Metabolic Disorders, Merck Research Laboratories, Mail code RY50G-236, P.O. Box 2000, Rahway, NJ 07065, U.S.A., †Department of Pharmaceutical Chemistry, University of California, 513 Parnassus Avenue, San Francisco, CA 94143-0446, U.S.A., and ‡Department of Chemistry, University of California, Berkeley, CA 94720, U.S.A. There is currently intense interest in the emerging group of strates and inhibitors for these enzymes, a complete biochemical proline-specific dipeptidases, and their roles in the regulation profile of these enzymes was obtained. The pH profiles, substrate of biological processes. Dipeptidyl peptidase IV (DPP-IV) is specificities as determined by positional scanning, Michaelis– involved in glucose metabolism by contributing to the regulation Menten constants and inhibition profiles for DPP-VII and DPP- of glucagon family peptides and has emerged as a potential target II were shown to be virtually identical, strongly supporting the for the treatment of metabolic diseases. -
DPP9 Mouse Monoclonal Antibody [Clone ID: OTI1G9] – TA504307
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 TA504307 DPP9 Mouse Monoclonal Antibody [Clone ID: OTI1G9] Product data: Product Type: Primary Antibodies Clone Name: OTI1G9 Applications: FC, IHC, WB Recommended Dilution: WB 1:500~2000, IHC 1:150, FLOW 1:100 Reactivity: Human, Monkey, Mouse, Rat, Dog Host: Mouse Isotype: IgG1 Clonality: Monoclonal Immunogen: Full length human recombinant protein of human DPP9(NP_631898) produced in HEK293T cell. Formulation: PBS (PH 7.3) containing 1% BSA, 50% glycerol and 0.02% sodium azide. Concentration: 0.7 mg/ml Purification: Purified from mouse ascites fluids or tissue culture supernatant by affinity chromatography (protein A/G) Conjugation: Unconjugated Storage: Store at -20°C as received. Stability: Stable for 12 months from date of receipt. Predicted Protein Size: 96.4 kDa Gene Name: dipeptidyl peptidase 9 Database Link: NP_631898 Entrez Gene 224897 MouseEntrez Gene 485033 DogEntrez Gene 301130 RatEntrez Gene 695587 MonkeyEntrez Gene 91039 Human Q86TI2 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 / 3 DPP9 Mouse Monoclonal Antibody [Clone ID: OTI1G9] – TA504307 Background: This gene encodes a protein that is a member of the S9B family in clan SC of the serine proteases. The protein has been shown to have post-proline dipeptidyl aminopeptidase activity, cleaving Xaa-Pro dipeptides from the N-termini of proteins. -
Involvement of DPP9 in Gene Fusions in Serous Ovarian Carcinoma
Smebye et al. BMC Cancer (2017) 17:642 DOI 10.1186/s12885-017-3625-6 RESEARCH ARTICLE Open Access Involvement of DPP9 in gene fusions in serous ovarian carcinoma Marianne Lislerud Smebye1,2, Antonio Agostini1,2, Bjarne Johannessen2,3, Jim Thorsen1,2, Ben Davidson4,5, Claes Göran Tropé6, Sverre Heim1,2,5, Rolf Inge Skotheim2,3 and Francesca Micci1,2* Abstract Background: A fusion gene is a hybrid gene consisting of parts from two previously independent genes. Chromosomal rearrangements leading to gene breakage are frequent in high-grade serous ovarian carcinomas and have been reported as a common mechanism for inactivating tumor suppressor genes. However, no fusion genes have been repeatedly reported to be recurrent driver events in ovarian carcinogenesis. We combined genomic and transcriptomic information to identify novel fusion gene candidates and aberrantly expressed genes in ovarian carcinomas. Methods: Examined were 19 previously karyotyped ovarian carcinomas (18 of the serous histotype and one undifferentiated). First, karyotypic aberrations were compared to fusion gene candidates identified by RNA sequencing (RNA-seq). In addition, we used exon-level gene expression microarrays as a screening tool to identify aberrantly expressed genes possibly involved in gene fusion events, and compared the findings to the RNA-seq data. Results: We found a DPP9-PPP6R3 fusion transcript in one tumor showing a matching genomic 11;19-translocation. Another tumor had a rearrangement of DPP9 with PLIN3. Both rearrangements were associated with diminished expression of the 3′ end of DPP9 corresponding to the breakpoints identified by RNA-seq. For the exon-level expression analysis, candidate fusion partner genes were ranked according to deviating expression compared to the median of the sample set. -
Análise Integrativa De Perfis Transcricionais De Pacientes Com
UNIVERSIDADE DE SÃO PAULO FACULDADE DE MEDICINA DE RIBEIRÃO PRETO PROGRAMA DE PÓS-GRADUAÇÃO EM GENÉTICA ADRIANE FEIJÓ EVANGELISTA Análise integrativa de perfis transcricionais de pacientes com diabetes mellitus tipo 1, tipo 2 e gestacional, comparando-os com manifestações demográficas, clínicas, laboratoriais, fisiopatológicas e terapêuticas Ribeirão Preto – 2012 ADRIANE FEIJÓ EVANGELISTA Análise integrativa de perfis transcricionais de pacientes com diabetes mellitus tipo 1, tipo 2 e gestacional, comparando-os com manifestações demográficas, clínicas, laboratoriais, fisiopatológicas e terapêuticas Tese apresentada à Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo para obtenção do título de Doutor em Ciências. Área de Concentração: Genética Orientador: Prof. Dr. Eduardo Antonio Donadi Co-orientador: Prof. Dr. Geraldo A. S. Passos Ribeirão Preto – 2012 AUTORIZO A REPRODUÇÃO E DIVULGAÇÃO TOTAL OU PARCIAL DESTE TRABALHO, POR QUALQUER MEIO CONVENCIONAL OU ELETRÔNICO, PARA FINS DE ESTUDO E PESQUISA, DESDE QUE CITADA A FONTE. FICHA CATALOGRÁFICA Evangelista, Adriane Feijó Análise integrativa de perfis transcricionais de pacientes com diabetes mellitus tipo 1, tipo 2 e gestacional, comparando-os com manifestações demográficas, clínicas, laboratoriais, fisiopatológicas e terapêuticas. Ribeirão Preto, 2012 192p. Tese de Doutorado apresentada à Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo. Área de Concentração: Genética. Orientador: Donadi, Eduardo Antonio Co-orientador: Passos, Geraldo A. 1. Expressão gênica – microarrays 2. Análise bioinformática por module maps 3. Diabetes mellitus tipo 1 4. Diabetes mellitus tipo 2 5. Diabetes mellitus gestacional FOLHA DE APROVAÇÃO ADRIANE FEIJÓ EVANGELISTA Análise integrativa de perfis transcricionais de pacientes com diabetes mellitus tipo 1, tipo 2 e gestacional, comparando-os com manifestações demográficas, clínicas, laboratoriais, fisiopatológicas e terapêuticas. -
JASON MARC GOLDSTEIN the Isolation, Characterization
JASON MARC GOLDSTEIN The Isolation, Characterization and Cloning of Three Novel Peptidases From Streptoccocus gordonii: Their Potential Roles in Subacute Bacterial Endocarditis (Under the Direction of JAMES TRAVIS) Streptococcus gordonii is generally considered a benign inhabitant of the oral microflora yet is a primary etiological agent in the development of subacute bacterial endocarditis (SBE), an inflammatory state that propagates thrombus formation and tissue damage on the surface of heart valves. Colonization and adherence mechanisms have been identified, yet factors necessary to sustain growth remain unidentified. Strain FSS2 produced three extracellular aminopeptidase activities during growth in neutral pH- controlled batch cultures. The first included a serine-class dipeptidyl-aminopeptidase, an x-Pro DPP (Sg-xPDPP) found as an 85 kDa monomer by SDS-PAGE while appearing as a homodimer under native conditions. Kinetic studies indicated a unique and stringent x- Pro specificity comparable to the DPPIV/CD26 and lactococcal x-Pro DPP families. Isolation of the full-length gene uncovered a 759-amino acid polypeptide with a mass of 87,115 Da and theoretical pI of 5.6. Significant homology was found with PepX gene family members from Lactobacillus ssp. and Lactococcus ssp., and putative streptococcal x-Pro DPPs. The second activity was a putative serine-class arginine aminopeptidase (Sg- RAP) with some cysteine-class characteristics. It was found as a protein monomer of 70 kDa under denaturing conditions. Nested PCR cloning enabled the isolation of a 324 bp- long DNA fragment encoding the protein’s 108 amino acid N-terminus. Culture activity profiles and N-terminal sequence analysis indicated the release of this protein from the cell surface. -
Multivariate Analysis Reveals Differentially Expressed Genes
www.nature.com/scientificreports OPEN Multivariate analysis reveals diferentially expressed genes among distinct subtypes of difuse astrocytic gliomas: diagnostic implications Nerea González‑García1,2, Ana Belén Nieto‑Librero1,2, Ana Luisa Vital3, Herminio José Tao4, María González‑Tablas2,5,6, Álvaro Otero2, Purifcación Galindo‑Villardón1,2, Alberto Orfao2,5,6 & María Dolores Tabernero2,5,6,7* Diagnosis and classifcation of gliomas mostly relies on histopathology and a few genetic markers. Here we interrogated microarray gene expression profles (GEP) of 268 difuse astrocytic gliomas—33 difuse astrocytomas (DA), 52 anaplastic astrocytomas (AA) and 183 primary glioblastoma (GBM)—based on multivariate analysis, to identify discriminatory GEP that might support precise histopathological tumor stratifcation, particularly among inconclusive cases with II–III grade diagnosed, which have diferent prognosis and treatment strategies. Microarrays based GEP was analyzed on 155 difuse astrocytic gliomas (discovery cohort) and validated in another 113 tumors (validation set) via sequential univariate analysis (pairwise comparison) for discriminatory gene selection, followed by nonnegative matrix factorization and canonical biplot for identifcation of discriminatory GEP among the distinct histological tumor subtypes. GEP data analysis identifed a set of 27 genes capable of diferentiating among distinct subtypes of gliomas that might support current histological classifcation. DA + AA showed similar molecular profles with only a few discriminatory genes -
Genetic Polymorphism of the Angiotensin-Converting Enzyme (ACE) in Asthmatic Patients
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector RESPIRATORY MEDICINE (1998) 92, 1305-1310 Original Articles Genetic polymorphism of the angiotensin-converting enzyme (ACE) in asthmatic patients H. TOMITA, S. SATO, R. MATSUDA, N. OGISU, T. MORI, T. NIIMI AND S. SHIMIZU 2nd Department of Intemal Medicine, Nagoya City University Medical School, Nagoya, Japan Angiotensin-converting enzyme (ACE) inactivates bradykinin, substance P and neurokinin A, which are believed to play important roles in the pathogenesis of asthma, especially in neurogenic inflammation. It has recently been shown that an insertion (1)ldeletion (D) polymorphism in the ACE gene accounts for variation in serum ACE levels. There are thus three genotypes (insertion homozygote, II; deletion homozygote, DD; heterozygotes, DI). The serum ACE level with the DD type is reported to be about double that of the II type and intermediate in the DI case. In the present study, we examined whether asthma is linked with this ACE gene polymorphism. Seventy-one patients with asthma (27 males and 44 females) and 142 sex- and age-matched healthy controls were determined for their genotype by the polymerase chain reaction (PCR) method. Twenty-five asthmatics demonstrated the II type (352%) 37 the DI type (52.1%), and nine the DD type (12.7%). There were no significant differences in the distributions of genotypes and serum ACE levels between healthy controls and patients. No significant differences were evident in serum IgE levels, age at onset, proportion of atopic type patients and severity of asthma among the three genotypes. -
B Number Gene Name Mrna Intensity Mrna
sample) total list predicted B number Gene name assignment mRNA present mRNA intensity Gene description Protein detected - Membrane protein membrane sample detected (total list) Proteins detected - Functional category # of tryptic peptides # of tryptic peptides # of tryptic peptides detected (membrane b0002 thrA 13624 P 39 P 18 P(m) 2 aspartokinase I, homoserine dehydrogenase I Metabolism of small molecules b0003 thrB 6781 P 9 P 3 0 homoserine kinase Metabolism of small molecules b0004 thrC 15039 P 18 P 10 0 threonine synthase Metabolism of small molecules b0008 talB 20561 P 20 P 13 0 transaldolase B Metabolism of small molecules chaperone Hsp70; DNA biosynthesis; autoregulated heat shock b0014 dnaK 13283 P 32 P 23 0 proteins Cell processes b0015 dnaJ 4492 P 13 P 4 P(m) 1 chaperone with DnaK; heat shock protein Cell processes b0029 lytB 1331 P 16 P 2 0 control of stringent response; involved in penicillin tolerance Global functions b0032 carA 9312 P 14 P 8 0 carbamoyl-phosphate synthetase, glutamine (small) subunit Metabolism of small molecules b0033 carB 7656 P 48 P 17 0 carbamoyl-phosphate synthase large subunit Metabolism of small molecules b0048 folA 1588 P 7 P 1 0 dihydrofolate reductase type I; trimethoprim resistance Metabolism of small molecules peptidyl-prolyl cis-trans isomerase (PPIase), involved in maturation of b0053 surA 3825 P 19 P 4 P(m) 1 GenProt outer membrane proteins (1st module) Cell processes b0054 imp 2737 P 42 P 5 P(m) 5 GenProt organic solvent tolerance Cell processes b0071 leuD 4770 P 10 P 9 0 isopropylmalate