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Rosa E Silva I, Smetana JHC, de Oliveira JF. A comprehensive review on DDX3X liquid phase condensation in health and neurodevelopmental disorders. Int J Biol Macromol 2024; 259:129330. [PMID: 38218270 DOI: 10.1016/j.ijbiomac.2024.129330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/22/2023] [Accepted: 01/06/2024] [Indexed: 01/15/2024]
Abstract
DEAD-box helicases are global regulators of liquid-liquid phase separation (LLPS), a process that assembles membraneless organelles inside cells. An outstanding member of the DEAD-box family is DDX3X, a multi-functional protein that plays critical roles in RNA metabolism, including RNA transcription, splicing, nucleocytoplasmic export, and translation. The diverse functions of DDX3X result from its ability to bind and remodel RNA in an ATP-dependent manner. This capacity enables the protein to act as an RNA chaperone and an RNA helicase, regulating ribonucleoprotein complex assembly. DDX3X and its orthologs from mouse, yeast (Ded1), and C. elegans (LAF-1) can undergo LLPS, driving the formation of neuronal granules, stress granules, processing bodies or P-granules. DDX3X has been related to several human conditions, including neurodevelopmental disorders, such as intellectual disability and autism spectrum disorder. Although the research into the pathogenesis of aberrant biomolecular condensation in neurodegenerative diseases is increasing rapidly, the role of LLPS in neurodevelopmental disorders is underexplored. This review summarizes current findings relevant for DDX3X phase separation in neurodevelopment and examines how disturbances in the LLPS process can be related to neurodevelopmental disorders.
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Affiliation(s)
- Ivan Rosa E Silva
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, SP, Brazil
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2
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Oliveira FAS, Castro RJS, de Oliveira JF, Barreto FM, Farias MPO, Marinho GLDOC, Soares MJDS, Silva-Júnior A, Schwarz DGG. Geographical and temporal spread of equine rabies in Brazil. Acta Trop 2022; 227:106302. [PMID: 34990596 DOI: 10.1016/j.actatropica.2022.106302] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/29/2021] [Accepted: 01/01/2022] [Indexed: 11/17/2022]
Abstract
In Brazil, the horse is frequently used in cultural activities, sports, and in rural and urban work, implementing the economy in different social classes. Among the diseases in horses with zoonotic potential, rabies has been neglected in the country, increasing the risk of spreading the disease across borders. The present study evaluated the spatiotemporal distribution and temporal trend of rabies in horses in Brazil between 2010 and 2019. During this period, 1290 cases of rabies were detected in horses in Brazil, mainly in the states of São Paulo (21.7%) and Mato Grosso (13.3%). However, Espírito Santo stood out, with an incidence risk (IR) of 139.7 cases of rabies per 100,000 horses. The years 2013 and 2017 had higher peaks of IR for the disease, and the states that contributed to this increase were Mato Grosso, São Paulo, and Espírito Santo. There was no monthly seasonality of the disease among the states. The temporal trend revealed an increase for the northeastern region (Annual Percentage Change [APC]: 8.9%) and for Alagoas State (APC: 26.6%). In the spatiotemporal analysis, three high-risk clusters were formed: (i) cluster A (Relative Risk [RRs]: 6.21), involving only Minas Gerais, between 2017 and 2019; (ii) cluster B (RRs: 6.18), involving only Mato Grosso, between 2011 and 2013; and (iii) cluster C (RRs:4.71), involving the states of Rio de Janeiro and Espírito Santo, between 2010 and 2014. Only the states of Roraima and Amapá had no cases of equine rabies during the study period. Therefore, rabies in horses occurs in all Brazilian regions, with areas at high risk of infection concentrated in the Southeast. However, attention should be directed to the north-eastern and northern states, where notifications were infrequent, with an unknown risk in relation to the spread of rabies to transboundary regions. This is the first study evaluating the interstate distribution of rabies in equine species in regions of Brazil.
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Affiliation(s)
- Francisco Alyson Silva Oliveira
- Campus Professora Cinobelina Elvas (CPCE), Veterinary Medicine, Universidade Federal do Piauí (UFPI), BR 135 Km 03, Planalto Norte, Bom Jesus, Piauí 64900-000, Brazil
| | - Rivanni Jeniffer Souza Castro
- Campus Professora Cinobelina Elvas (CPCE), Veterinary Medicine, Universidade Federal do Piauí (UFPI), BR 135 Km 03, Planalto Norte, Bom Jesus, Piauí 64900-000, Brazil
| | - Juliana Ferreira de Oliveira
- Campus Avançado Ponte Nova, Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais (IFMG), Ponte Nova, Minas Gerais, Brazil
| | | | - Márcia Paula Oliveira Farias
- Campus Professora Cinobelina Elvas (CPCE), Veterinary Medicine, Universidade Federal do Piauí (UFPI), BR 135 Km 03, Planalto Norte, Bom Jesus, Piauí 64900-000, Brazil
| | - Glenda Lídice de Oliveira Cortez Marinho
- Campus Professora Cinobelina Elvas (CPCE), Veterinary Medicine, Universidade Federal do Piauí (UFPI), BR 135 Km 03, Planalto Norte, Bom Jesus, Piauí 64900-000, Brazil
| | - Maria José Dos Santos Soares
- Campus Ministro Petrônio Portela, Veterinary Morphology Department of Universidade Federal do Piauí, Teresina, Piauí, Brazil
| | - Abelardo Silva-Júnior
- Veterinary Department, Universidade Federal de Viçosa (UFV), Viçosa, Minas Gerais, Brazil
| | - David Germano Gonçalves Schwarz
- Campus Professora Cinobelina Elvas (CPCE), Veterinary Medicine, Universidade Federal do Piauí (UFPI), BR 135 Km 03, Planalto Norte, Bom Jesus, Piauí 64900-000, Brazil.
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de Castro Fonseca M, de Oliveira JF, Araujo BHS, Canateli C, do Prado PFV, Amorim Neto DP, Bosque BP, Rodrigues PV, de Godoy JVP, Tostes K, Filho HVR, Nascimento AFZ, Saito A, Tonoli CCC, Batista FAH, de Oliveira PSL, Figueira AC, Souza da Costa S, Krepischi ACV, Rosenberg C, Westfahl H, da Silva AJR, Franchini KG. Molecular and cellular basis of hyperassembly and protein aggregation driven by a rare pathogenic mutation in DDX3X. iScience 2021; 24:102841. [PMID: 34381968 PMCID: PMC8335631 DOI: 10.1016/j.isci.2021.102841] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/21/2021] [Accepted: 07/08/2021] [Indexed: 12/30/2022] Open
Abstract
Current studies estimate that 1–3% of females with unexplained intellectual disability (ID) present de novo splice site, nonsense, frameshift, or missense mutations in the DDX3X protein (DEAD-Box Helicase 3 X-Linked). However, the cellular and molecular mechanisms by which DDX3X mutations impair brain development are not fully comprehended. Here, we show that the ID-linked missense mutation L556S renders DDX3X prone to aggregation. By using a combination of biophysical assays and imaging approaches, we demonstrate that this mutant assembles solid-like condensates and amyloid-like fibrils. Although we observed greatly reduced expression of the mutant allele in a patient who exhibits skewed X inactivation, this appears to be enough to sequestrate healthy proteins into solid-like ectopic granules, compromising cell function. Therefore, our data suggest ID-linked DDX3X L556S mutation as a disorder arising from protein misfolding and aggregation. DDX3X mutations skew X-inactivation and are found in 1-3% of unexplained ID in females DDX3X mutant proteins assemble solid-like condensates and amyloid-like fibrils Aberrant granules formed by DDX3X mutants sequestrate healthy DDX3X protein ID-linked DDX3X L556S mutation decreases cell viability and induces apoptosis
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Affiliation(s)
- Matheus de Castro Fonseca
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Juliana Ferreira de Oliveira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Bruno Henrique Silva Araujo
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Camila Canateli
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Paula Favoretti Vital do Prado
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Dionísio Pedro Amorim Neto
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil.,Department of Structural and Functional Biology, State University of Campinas, Campinas, Brazil
| | - Beatriz Pelegrini Bosque
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil.,Department of Structural and Functional Biology, State University of Campinas, Campinas, Brazil
| | - Paulla Vieira Rodrigues
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil.,Department of Structural and Functional Biology, State University of Campinas, Campinas, Brazil
| | - João Vitor Pereira de Godoy
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil.,Department of Structural and Functional Biology, State University of Campinas, Campinas, Brazil
| | - Katiane Tostes
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Helder Veras Ribeiro Filho
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Andrey Fabricio Ziem Nascimento
- Brazilian Synchrotron Light National Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Angela Saito
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Celisa Caldana Costa Tonoli
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Fernanda Aparecida Heleno Batista
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Paulo Sergio Lopes de Oliveira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Ana Carolina Figueira
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil
| | - Silvia Souza da Costa
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Ana Cristina Victorino Krepischi
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Carla Rosenberg
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Harry Westfahl
- Brazilian Synchrotron Light National Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Antônio José Roque da Silva
- Brazilian Synchrotron Light National Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Kleber Gomes Franchini
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), 10000 Giuseppe Maximo Scolfaro St., Campinas, São Paulo 13083-100, Brazil.,Department of Internal Medicine, School of Medicine, University of Campinas, Campinas, Brazil
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4
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de Oliveira JF, do Prado PFV, da Costa SS, Sforça ML, Canateli C, Ranzani AT, Maschietto M, de Oliveira PSL, Otto PA, Klevit RE, Krepischi ACV, Rosenberg C, Franchini KG. Mechanistic insights revealed by a UBE2A mutation linked to intellectual disability. Nat Chem Biol 2018; 15:62-70. [PMID: 30531907 DOI: 10.1038/s41589-018-0177-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 10/26/2018] [Indexed: 12/30/2022]
Abstract
Ubiquitin-conjugating enzymes (E2) enable protein ubiquitination by conjugating ubiquitin to their catalytic cysteine for subsequent transfer to a target lysine side chain. Deprotonation of the incoming lysine enables its nucleophilicity, but determinants of lysine activation remain poorly understood. We report a novel pathogenic mutation in the E2 UBE2A, identified in two brothers with mild intellectual disability. The pathogenic Q93E mutation yields UBE2A with impaired aminolysis activity but no loss of the ability to be conjugated with ubiquitin. Importantly, the low intrinsic reactivity of UBE2A Q93E was not overcome by a cognate ubiquitin E3 ligase, RAD18, with the UBE2A target PCNA. However, UBE2A Q93E was reactive at high pH or with a low-pKa amine as the nucleophile, thus providing the first evidence of reversion of a defective UBE2A mutation. We propose that Q93E substitution perturbs the UBE2A catalytic microenvironment essential for lysine deprotonation during ubiquitin transfer, thus generating an enzyme that is disabled but not dead.
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Affiliation(s)
| | | | - Silvia Souza da Costa
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Mauricio Luis Sforça
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, Brazil
| | - Camila Canateli
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, Brazil
| | - Americo Tavares Ranzani
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, Brazil
| | - Mariana Maschietto
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, Brazil
| | | | - Paulo A Otto
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Rachel E Klevit
- Department of Biochemistry, University of Washington, Seattle, WA, USA
| | | | - Carla Rosenberg
- Department of Genetics and Evolutionary Biology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Kleber Gomes Franchini
- Brazilian Biosciences National Laboratory, Center for Research in Energy and Materials, Campinas, Brazil. .,Department of Internal Medicine, School of Medicine, University of Campinas, Campinas, Brazil.
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5
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de Guzzi Cassago CA, Dias MM, Pinheiro MP, Pasquali CC, Bastos ACS, Islam Z, Consonni SR, de Oliveira JF, Gomes EM, Ascenção CFR, Honorato R, Pauletti BA, Indolfo NDC, Filho HVR, de Oliveira PSL, Figueira ACM, Paes Leme AF, Ambrosio ALB, Dias SMG. Glutaminase Affects the Transcriptional Activity of Peroxisome Proliferator-Activated Receptor γ (PPARγ) via Direct Interaction. Biochemistry 2018; 57:6293-6307. [PMID: 30295466 DOI: 10.1021/acs.biochem.8b00773] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Phosphate-activated glutaminases catalyze the deamidation of glutamine to glutamate and play key roles in several physiological and pathological processes. In humans, GLS encodes two multidomain splicing isoforms: KGA and GAC. In both isoforms, the canonical glutaminase domain is flanked by an N-terminal region that is folded into an EF-hand-like four-helix bundle. However, the splicing event replaces a well-structured three-repeat ankyrin domain in KGA with a shorter, unordered C-terminal stretch in GAC. The multidomain architecture, which contains putative protein-protein binding motifs, has led to speculation that glutaminases are involved in cellular processes other than glutamine metabolism; in fact, some proteins have been identified as binding partners of KGA and the isoforms of its paralogue gene, GLS2. Here, a yeast two-hybrid assay identified nuclear receptor peroxisome proliferator-activated receptor γ (PPARγ) as a new binding partner of the glutaminase. We show that KGA and GAC directly bind PPARγ with a low-micromolar dissociation constant; the interaction involves the N-terminal and catalytic domains of glutaminases as well as the ligand-binding domain of the nuclear receptor. The interaction occurs within the nucleus, and by sequestering PPARγ from its responsive element DR1, the glutaminases decreased nuclear receptor activity as assessed by a luciferase reporter assay. Altogether, our findings reveal an unexpected glutaminase-binding partner and, for the first time, directly link mitochondrial glutaminases to an unanticipated role in gene regulation.
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Affiliation(s)
- Carolina Aparecida de Guzzi Cassago
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Marília Meira Dias
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Matheus Pinto Pinheiro
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Camila Cristina Pasquali
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Alliny Cristiny Silva Bastos
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology , University of Campinas (UNICAMP) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Zeyaul Islam
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Sílvio Roberto Consonni
- Department of Biochemistry and Tissue Biology , University of Campinas , Campinas , Sao Paulo 13083-872 , Brazil
| | - Juliana Ferreira de Oliveira
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Emerson Machi Gomes
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Carolline Fernanda Rodrigues Ascenção
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology , University of Campinas (UNICAMP) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Rodrigo Honorato
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Bianca Alves Pauletti
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Nathalia de Carvalho Indolfo
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Helder Veras Ribeiro Filho
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Paulo Sergio Lopes de Oliveira
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Ana Carolina Migliorini Figueira
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Adriana Franco Paes Leme
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Andre Luis Berteli Ambrosio
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
| | - Sandra Martha Gomes Dias
- Brazilian Biosciences National Laboratory (LNBio) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , Sao Paulo 13083-970 , Brazil
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Nagampalli RSK, Quesñay JEN, Adamoski D, Islam Z, Birch J, Sebinelli HG, Girard RMBM, Ascenção CFR, Fala AM, Pauletti BA, Consonni SR, de Oliveira JF, Silva ACT, Franchini KG, Leme AFP, Silber AM, Ciancaglini P, Moraes I, Dias SMG, Ambrosio ALB. Human mitochondrial pyruvate carrier 2 as an autonomous membrane transporter. Sci Rep 2018; 8:3510. [PMID: 29472561 PMCID: PMC5823908 DOI: 10.1038/s41598-018-21740-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 02/06/2018] [Indexed: 02/07/2023] Open
Abstract
The active transport of glycolytic pyruvate across the inner mitochondrial membrane is thought to involve two mitochondrial pyruvate carrier subunits, MPC1 and MPC2, assembled as a 150 kDa heterotypic oligomer. Here, the recombinant production of human MPC through a co-expression strategy is first described; however, substantial complex formation was not observed, and predominantly individual subunits were purified. In contrast to MPC1, which co-purifies with a host chaperone, we demonstrated that MPC2 homo-oligomers promote efficient pyruvate transport into proteoliposomes. The derived functional requirements and kinetic features of MPC2 resemble those previously demonstrated for MPC in the literature. Distinctly, chemical inhibition of transport is observed only for a thiazolidinedione derivative. The autonomous transport role for MPC2 is validated in cells when the ectopic expression of human MPC2 in yeast lacking endogenous MPC stimulated growth and increased oxygen consumption. Multiple oligomeric species of MPC2 across mitochondrial isolates, purified protein and artificial lipid bilayers suggest functional high-order complexes. Significant changes in the secondary structure content of MPC2, as probed by synchrotron radiation circular dichroism, further supports the interaction between the protein and ligands. Our results provide the initial framework for the independent role of MPC2 in homeostasis and diseases related to dysregulated pyruvate metabolism.
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Affiliation(s)
| | - José Edwin Neciosup Quesñay
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - Douglas Adamoski
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - Zeyaul Islam
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - James Birch
- Membrane Protein Laboratory, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, England.,Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Didcot, Oxfordshire OX11 0FA, England
| | - Heitor Gobbi Sebinelli
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Richard Marcel Bruno Moreira Girard
- Laboratory of Biochemistry of Tryps - LaBTryps, Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | | | - Angela Maria Fala
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil.,Structural Genomics Consortium (SGC), Universidade Estadual de Campinas, Campinas, SP, 13083-886, Brazil
| | - Bianca Alves Pauletti
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - Sílvio Roberto Consonni
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil.,Departamento de Bioquímica e Biologia Tecidual, Instituto de Biologia, Universidade Estadual de Campinas, Campinas, SP, 13083-862, Brazil
| | - Juliana Ferreira de Oliveira
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - Amanda Cristina Teixeira Silva
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - Kleber Gomes Franchini
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - Adriana Franco Paes Leme
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil
| | - Ariel Mariano Silber
- Laboratory of Biochemistry of Tryps - LaBTryps, Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Pietro Ciancaglini
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Isabel Moraes
- Membrane Protein Laboratory, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, England.,Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell, Didcot, Oxfordshire OX11 0FA, England.,National Physical Laboratory, Teddington, Middlesex, TW11 0LW, England
| | - Sandra Martha Gomes Dias
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil.
| | - Andre Luis Berteli Ambrosio
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas, SP, 13083-970, Brazil.
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Redis RS, Vela LE, Lu W, Ferreira de Oliveira J, Ivan C, Rodriguez-Aguayo C, Adamoski D, Pasculli B, Taguchi A, Chen Y, Fernandez AF, Valledor L, Van Roosbroeck K, Chang S, Shah M, Kinnebrew G, Han L, Atlasi Y, Cheung LH, Huang GY, Monroig P, Ramirez MS, Catela Ivkovic T, Van L, Ling H, Gafà R, Kapitanovic S, Lanza G, Bankson JA, Huang P, Lai SY, Bast RC, Rosenblum MG, Radovich M, Ivan M, Bartholomeusz G, Liang H, Fraga MF, Widger WR, Hanash S, Berindan-Neagoe I, Lopez-Berestein G, Ambrosio ALB, Gomes Dias SM, Calin GA. Allele-Specific Reprogramming of Cancer Metabolism by the Long Non-coding RNA CCAT2. Mol Cell 2016; 61:520-534. [PMID: 26853146 DOI: 10.1016/j.molcel.2016.01.015] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 10/23/2015] [Accepted: 01/08/2016] [Indexed: 12/31/2022]
Abstract
Altered energy metabolism is a cancer hallmark as malignant cells tailor their metabolic pathways to meet their energy requirements. Glucose and glutamine are the major nutrients that fuel cellular metabolism, and the pathways utilizing these nutrients are often altered in cancer. Here, we show that the long ncRNA CCAT2, located at the 8q24 amplicon on cancer risk-associated rs6983267 SNP, regulates cancer metabolism in vitro and in vivo in an allele-specific manner by binding the Cleavage Factor I (CFIm) complex with distinct affinities for the two subunits (CFIm25 and CFIm68). The CCAT2 interaction with the CFIm complex fine-tunes the alternative splicing of Glutaminase (GLS) by selecting the poly(A) site in intron 14 of the precursor mRNA. These findings uncover a complex, allele-specific regulatory mechanism of cancer metabolism orchestrated by the two alleles of a long ncRNA.
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Affiliation(s)
- Roxana S Redis
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Luz E Vela
- Department of Biology & Biochemistry, University of Houston, Houston, TX 77204, USA
| | - Weiqin Lu
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Juliana Ferreira de Oliveira
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas 13083-100, Brazil
| | - Cristina Ivan
- Center for RNA Interference and Non-coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Cristian Rodriguez-Aguayo
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Douglas Adamoski
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas 13083-100, Brazil
| | - Barbara Pasculli
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ayumu Taguchi
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yunyun Chen
- Department of Head & Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Agustin F Fernandez
- Cancer Epigenetics Laboratory, Institute of Oncology of Asturias (IUOPA), HUCA, Universidad de Oviedo, Oviedo 33006, Spain
| | - Luis Valledor
- Department of Organisms and Systems Biology, University of Oviedo, Ovideo 33006, Spain
| | - Katrien Van Roosbroeck
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Samuel Chang
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Maitri Shah
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Garrett Kinnebrew
- Department of Surgery, Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Leng Han
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX 77030, USA
| | - Yaser Atlasi
- Department of Pathology, Josephine Nefkens Institute, Erasmus Medical Center, Rotterdam 3015, the Netherlands
| | - Lawrence H Cheung
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Gilbert Y Huang
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Paloma Monroig
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marc S Ramirez
- Department of Imaging Physics, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Tina Catela Ivkovic
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Laboratory for Personalized Medicine, Division of Molecular Medicine, Ruder Boskovic Institute, Zagreb 10000, Croatia
| | - Long Van
- Department of Biology & Biochemistry, University of Houston, Houston, TX 77204, USA
| | - Hui Ling
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Roberta Gafà
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara 44121, Italy
| | - Sanja Kapitanovic
- Laboratory for Personalized Medicine, Division of Molecular Medicine, Ruder Boskovic Institute, Zagreb 10000, Croatia
| | - Giovanni Lanza
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara 44121, Italy
| | - James A Bankson
- Department of Imaging Physics, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Peng Huang
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Stephen Y Lai
- Department of Head & Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Robert C Bast
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Michael G Rosenblum
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Milan Radovich
- Department of Surgery, Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Mircea Ivan
- Department of Medicine, Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Geoffrey Bartholomeusz
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Han Liang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mario F Fraga
- Nanomaterials and Nanotechnology Research Center (CINN-CSIC), Asturias 33424, Spain
| | - William R Widger
- Department of Biology & Biochemistry, University of Houston, Houston, TX 77204, USA
| | - Samir Hanash
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ioana Berindan-Neagoe
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Research Center for Functional Genomics, Biomedicine and Translational Medicine, University of Medicine and Pharmacy Iuliu Hatieganu, Cluj-Napoca 400012, Romania; Department of Functional Genomics, The Oncology Institute, Cluj-Napoca 400015, Romania
| | - Gabriel Lopez-Berestein
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Center for RNA Interference and Non-coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Andre L B Ambrosio
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas 13083-100, Brazil
| | - Sandra M Gomes Dias
- Laboratório Nacional de Biociências, Centro Nacional de Pesquisa em Energia e Materiais, Campinas 13083-100, Brazil
| | - George A Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; Center for RNA Interference and Non-coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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Bevilacqua PD, Carmo RF, Melo CMD, Bastos RKX, Oliveira DCD, Soares ACC, Oliveira JFD. Vigilância da qualidade da água para consumo humano no âmbito municipal: contornos, desafios e possibilidades. Saude soc 2014. [DOI: 10.1590/s0104-12902014000200009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A amplitude das atribuições da vigilância da qualidade da água para consumo humano (VQACH) associada à heterogeneidade dos municípios brasileiros (perfil demográfico e epidemiológico, recursos humanos e financeiros) impõe ao nível local de gestão o desafio de implementar com efetividade e sustentabilidade as ações previstas no modelo de atuação da VQACH. Tendo como cenário de estudo um município mineiro de pequeno porte, o trabalho apresenta desafios e possibilidades vivenciados durante a implementação do modelo. O atendimento às ações estratégicas e básicas e aos princípios doutrinários, organizacionais e executivos previstos no modelo de atuação foi verificado e as estratégias para o enfrentamento dos desafios impostos ao exercício da VQACH foram apresentadas. A conformação de uma equipe de profissionais em quantidade e qualidade compatíveis com as ações de VQACH foi aspecto fundamental, além da melhor explicitação de procedimentos como análise integrada dos sistemas de informação e análise e classificação do grau de risco à saúde das diferentes formas de abastecimento de água. O estudo permite adiantar aos gestores dos diferentes níveis de governo desafios e estratégias para contorná-los, bem como instrumentaliza a coordenação da VQACH no nível federal sobre questões que necessitam tratamento mais detalhado e específico.
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Ferreira APS, Cassago A, Gonçalves KDA, Dias MM, Adamoski D, Ascenção CFR, Honorato RV, de Oliveira JF, Ferreira IM, Fornezari C, Bettini J, Oliveira PSL, Paes Leme AF, Portugal RV, Ambrosio ALB, Dias SMG. Active glutaminase C self-assembles into a supratetrameric oligomer that can be disrupted by an allosteric inhibitor. J Biol Chem 2013; 288:28009-20. [PMID: 23935106 DOI: 10.1074/jbc.m113.501346] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The phosphate-dependent transition between enzymatically inert dimers into catalytically capable tetramers has long been the accepted mechanism for the glutaminase activation. Here, we demonstrate that activated glutaminase C (GAC) self-assembles into a helical, fiber-like double-stranded oligomer and propose a molecular model consisting of seven tetramer copies per turn per strand interacting via the N-terminal domains. The loop (321)LRFNKL(326) is projected as the major regulating element for self-assembly and enzyme activation. Furthermore, the previously identified in vivo lysine acetylation (Lys(311) in humans, Lys(316) in mouse) is here proposed as an important down-regulator of superoligomer assembly and protein activation. Bis-2-(5-phenylacetamido-1,3,4-thiadiazol-2-yl)ethyl sulfide, a known glutaminase inhibitor, completely disrupted the higher order oligomer, explaining its allosteric mechanism of inhibition via tetramer stabilization. A direct correlation between the tendency to self-assemble and the activity levels of the three mammalian glutaminase isozymes was established, with GAC being the most active enzyme while forming the longest structures. Lastly, the ectopic expression of a fiber-prone superactive GAC mutant in MDA-MB 231 cancer cells provided considerable proliferative advantages to transformed cells. These findings yield unique implications for the development of GAC-oriented therapeutics targeting tumor metabolism.
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Zaparoli G, Barsottini MRDO, de Oliveira JF, Dyszy F, Teixeira PJPL, Barau JG, Garcia O, Costa-Filho AJ, Ambrosio ALB, Pereira GAG, Dias SMG. The crystal structure of necrosis- and ethylene-inducing protein 2 from the causal agent of cacao's Witches' Broom disease reveals key elements for its activity. Biochemistry 2011; 50:9901-10. [PMID: 21999603 DOI: 10.1021/bi201253b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The necrosis- and ethylene-inducing peptide 1 (NEP1)-like proteins (NLPs) are proteins secreted from bacteria, fungi and oomycetes, triggering immune responses and cell death in dicotyledonous plants. Genomic-scale studies of Moniliophthora perniciosa, the fungus that causes the Witches' Broom disease in cacao, which is a serious economic concern for South and Central American crops, have identified five members of this family (termed MpNEP1-5). Here, we show by RNA-seq that MpNEP2 is virtually the only NLP expressed during the fungus infection. The quantitative real-time polymerase chain reaction results revealed that MpNEP2 has an expression pattern that positively correlates with the necrotic symptoms, with MpNEP2 reaching its highest level of expression at the advanced necrotic stage. To improve our understanding of MpNEP2's molecular mechanism of action, we determined the crystallographic structure of MpNEP2 at 1.8 Å resolution, unveiling some key structural features. The implications of a cation coordination found in the crystal structure were explored, and we show that MpNEP2, in contrast to another previously described member of the NLP family, NLP(Pya) from Pythium aphanidermatum, does not depend on an ion to accomplish its necrosis- and electrolyte leakage-promoting activities. Results of site-directed mutagenesis experiments confirmed the importance of a negatively charged cavity and an unforeseen hydrophobic β-hairpin loop for MpNEP2 activity, thus offering a platform for compound design with implications for disease control. Electron paramagnetic resonance and fluorescence assays with MpNEP2 performed in the presence of lipid vesicles of different compositions showed no sign of interaction between the protein and the lipids, implying that MpNEP2 likely requires other anchoring elements from the membrane to promote cytolysis or send death signals.
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Affiliation(s)
- Gustavo Zaparoli
- Departamento de Genética e Evolução, IB/UNICAMP, CP 6109, 13083-970 Campinas, SP, Brazil
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11
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de Oliveira JF, Sforça ML, Blumenschein TMA, Goldfeder MB, Guimarães BG, Oliveira CC, Zanchin NIT, Zeri AC. Structure, dynamics, and RNA interaction analysis of the human SBDS protein. J Mol Biol 2010; 396:1053-69. [PMID: 20053358 DOI: 10.1016/j.jmb.2009.12.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Revised: 12/06/2009] [Accepted: 12/18/2009] [Indexed: 12/18/2022]
Abstract
Shwachman-Bodian-Diamond syndrome is an autosomal recessive genetic syndrome with pleiotropic phenotypes, including pancreatic deficiencies, bone marrow dysfunctions with increased risk of myelodysplasia or leukemia, and skeletal abnormalities. This syndrome has been associated with mutations in the SBDS gene, which encodes a conserved protein showing orthologs in Archaea and eukaryotes. The Shwachman-Bodian-Diamond syndrome pleiotropic phenotypes may be an indication of different cell type requirements for a fully functional SBDS protein. RNA-binding activity has been predicted for archaeal and yeast SBDS orthologs, with the latter also being implicated in ribosome biogenesis. However, full-length SBDS orthologs function in a species-specific manner, indicating that the knowledge obtained from model systems may be of limited use in understanding major unresolved issues regarding SBDS function, namely, the effect of mutations in human SBDS on its biochemical function and the specificity of RNA interaction. We determined the solution structure and backbone dynamics of the human SBDS protein and describe its RNA binding site using NMR spectroscopy. Similarly to the crystal structures of Archaea, the overall structure of human SBDS comprises three well-folded domains. However, significant conformational exchange was observed in NMR dynamics experiments for the flexible linker between the N-terminal domain and the central domain, and these experiments also reflect the relative motions of the domains. RNA titrations monitored by heteronuclear correlation experiments and chemical shift mapping analysis identified a classic RNA binding site at the N-terminal FYSH (fungal, Yhr087wp, Shwachman) domain that concentrates most of the mutations described for the human SBDS.
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Affiliation(s)
- Juliana Ferreira de Oliveira
- Center for Structural Molecular Biology, Brazilian Synchrotron Light Laboratory, LNLS Rua Giuseppe Maximo Scolfaro 10000, PO Box 6192, CEP 13083-970 Campinas, SP, Brazil
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12
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de Oliveira JF, Castilho BA, Sforça ML, Krieger MA, Zeri AC, Guimarães BG, Zanchin NI. Characterization of the Trypanosoma cruzi ortholog of the SBDS protein reveals an intrinsically disordered extended C-terminal region showing RNA-interacting activity. Biochimie 2009; 91:475-83. [DOI: 10.1016/j.biochi.2008.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Accepted: 12/05/2008] [Indexed: 10/21/2022]
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