UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.abb.2010.10.019 http://hdl.handle.net/11449/72298 |
Resumo: | The pyrH-encoded uridine 5′-monophosphate kinase (UMPK) is involved in both de novo and salvage synthesis of DNA and RNA precursors. Here we describe Mycobacterium tuberculosis UMPK (MtUMPK) cloning and expression in Escherichia coli. N-terminal amino acid sequencing and electrospray ionization mass spectrometry analyses confirmed the identity of homogeneous MtUMPK. MtUMPK catalyzed the phosphorylation of UMP to UDP, using ATP-Mg 2+ as phosphate donor. Size exclusion chromatography showed that the protein is a homotetramer. Kinetic studies revealed that MtUMPK exhibits cooperative kinetics towards ATP and undergoes allosteric regulation. GTP and UTP are, respectively, positive and negative effectors, maintaining the balance of purine versus pyrimidine synthesis. Initial velocity studies and substrate(s) binding measured by isothermal titration calorimetry suggested that catalysis proceeds by a sequential ordered mechanism, in which ATP binds first followed by UMP binding, and release of products is random. As MtUMPK does not resemble its eukaryotic counterparts, specific inhibitors could be designed to be tested as antitubercular agents. © 2010 Elsevier Inc. All rights reserved. |
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UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulationAllosteric regulationAntitubercular drug targetCooperative kineticsPyrimidine metabolismThermodynamic binding parametersUMPKadenosine triphosphateguanosine triphosphatephosphotransferasepyrimidineunclassified druguridine 5' monophosphate kinaseuridine diphosphateuridine triphosphateamino acid metabolismenzyme kineticsenzyme phosphorylationEscherichia coligene amplificationgene sequencemolecular cloningmolecular weightMycobacterium tuberculosisnonhumanpriority journalprotein expressionprotein purificationAdenosine TriphosphateAllosteric RegulationAmino Acid SequenceCloning, MolecularEscherichia coli ProteinsGenes, SuppressorGuanosine TriphosphateKineticsLigandsMolecular Sequence DataMolecular WeightPolymerase Chain ReactionPyrimidinesSequence AlignmentSequence Analysis, DNASpectrometry, Mass, Electrospray IonizationTransferasesUridine TriphosphateEukaryotaThe pyrH-encoded uridine 5′-monophosphate kinase (UMPK) is involved in both de novo and salvage synthesis of DNA and RNA precursors. Here we describe Mycobacterium tuberculosis UMPK (MtUMPK) cloning and expression in Escherichia coli. N-terminal amino acid sequencing and electrospray ionization mass spectrometry analyses confirmed the identity of homogeneous MtUMPK. MtUMPK catalyzed the phosphorylation of UMP to UDP, using ATP-Mg 2+ as phosphate donor. Size exclusion chromatography showed that the protein is a homotetramer. Kinetic studies revealed that MtUMPK exhibits cooperative kinetics towards ATP and undergoes allosteric regulation. GTP and UTP are, respectively, positive and negative effectors, maintaining the balance of purine versus pyrimidine synthesis. Initial velocity studies and substrate(s) binding measured by isothermal titration calorimetry suggested that catalysis proceeds by a sequential ordered mechanism, in which ATP binds first followed by UMP binding, and release of products is random. As MtUMPK does not resemble its eukaryotic counterparts, specific inhibitors could be designed to be tested as antitubercular agents. © 2010 Elsevier Inc. All rights reserved.Centro de Pesquisas em Biologia Molecular e Funcional (CPBMF) Instituto Nacional de Ciência e Tecnologia em Tuberculose (INCT-TB) Pontifícia Universidade Católica Do Rio Grande Do sul (PUCRS), Av. Ipiranga 6681 - Tecnopuc - Prédio 92-A, Porto Alegre 90619-900, RSPrograma de Pós-Graduaão em Biologia Celular e Molecular Pontifícia Universidade Católica Do Rio Grande Do sul (PUCRS), Porto Alegre, RSPrograma de Pós-Graduaão em Medicina e Ciências da Saúde PUCRS, Av. Ipiranga 6681, Porto Alegre 90619-900, RSLaboratório de Biologia Estrutural e Zooquímica Centro de Estudos de Insetos Sociais Universidade Estadual Paulista (UNESP), Rio Claro, SPLaboratório de Biologia Estrutural e Zooquímica Centro de Estudos de Insetos Sociais Universidade Estadual Paulista (UNESP), Rio Claro, SPPontifícia Universidade Católica do Rio Grande do Sul (PUCRS)Universidade Estadual Paulista (Unesp)Rostirolla, Diana C.Breda, ArdalaRosado, Leonardo A.Palma, Mario Sergio [UNESP]Basso, Luiz A.Santos, Diógenes S.2014-05-27T11:25:27Z2014-05-27T11:25:27Z2011-01-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article202-212application/pdfhttp://dx.doi.org/10.1016/j.abb.2010.10.019Archives of Biochemistry and Biophysics, v. 505, n. 2, p. 202-212, 2011.0003-98611096-0384http://hdl.handle.net/11449/7229810.1016/j.abb.2010.10.0192-s2.0-786512547442-s2.0-78651254744.pdf2901888624506535Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengArchives of Biochemistry and Biophysics3.1181,3501,350info:eu-repo/semantics/openAccess2023-12-16T06:25:41Zoai:repositorio.unesp.br:11449/72298Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-16T06:25:41Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation |
title |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation |
spellingShingle |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation Rostirolla, Diana C. Allosteric regulation Antitubercular drug target Cooperative kinetics Pyrimidine metabolism Thermodynamic binding parameters UMPK adenosine triphosphate guanosine triphosphate phosphotransferase pyrimidine unclassified drug uridine 5' monophosphate kinase uridine diphosphate uridine triphosphate amino acid metabolism enzyme kinetics enzyme phosphorylation Escherichia coli gene amplification gene sequence molecular cloning molecular weight Mycobacterium tuberculosis nonhuman priority journal protein expression protein purification Adenosine Triphosphate Allosteric Regulation Amino Acid Sequence Cloning, Molecular Escherichia coli Proteins Genes, Suppressor Guanosine Triphosphate Kinetics Ligands Molecular Sequence Data Molecular Weight Polymerase Chain Reaction Pyrimidines Sequence Alignment Sequence Analysis, DNA Spectrometry, Mass, Electrospray Ionization Transferases Uridine Triphosphate Eukaryota |
title_short |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation |
title_full |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation |
title_fullStr |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation |
title_full_unstemmed |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation |
title_sort |
UMP kinase from Mycobacterium tuberculosis: Mode of action and allosteric interactions, and their likely role in pyrimidine metabolism regulation |
author |
Rostirolla, Diana C. |
author_facet |
Rostirolla, Diana C. Breda, Ardala Rosado, Leonardo A. Palma, Mario Sergio [UNESP] Basso, Luiz A. Santos, Diógenes S. |
author_role |
author |
author2 |
Breda, Ardala Rosado, Leonardo A. Palma, Mario Sergio [UNESP] Basso, Luiz A. Santos, Diógenes S. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Rostirolla, Diana C. Breda, Ardala Rosado, Leonardo A. Palma, Mario Sergio [UNESP] Basso, Luiz A. Santos, Diógenes S. |
dc.subject.por.fl_str_mv |
Allosteric regulation Antitubercular drug target Cooperative kinetics Pyrimidine metabolism Thermodynamic binding parameters UMPK adenosine triphosphate guanosine triphosphate phosphotransferase pyrimidine unclassified drug uridine 5' monophosphate kinase uridine diphosphate uridine triphosphate amino acid metabolism enzyme kinetics enzyme phosphorylation Escherichia coli gene amplification gene sequence molecular cloning molecular weight Mycobacterium tuberculosis nonhuman priority journal protein expression protein purification Adenosine Triphosphate Allosteric Regulation Amino Acid Sequence Cloning, Molecular Escherichia coli Proteins Genes, Suppressor Guanosine Triphosphate Kinetics Ligands Molecular Sequence Data Molecular Weight Polymerase Chain Reaction Pyrimidines Sequence Alignment Sequence Analysis, DNA Spectrometry, Mass, Electrospray Ionization Transferases Uridine Triphosphate Eukaryota |
topic |
Allosteric regulation Antitubercular drug target Cooperative kinetics Pyrimidine metabolism Thermodynamic binding parameters UMPK adenosine triphosphate guanosine triphosphate phosphotransferase pyrimidine unclassified drug uridine 5' monophosphate kinase uridine diphosphate uridine triphosphate amino acid metabolism enzyme kinetics enzyme phosphorylation Escherichia coli gene amplification gene sequence molecular cloning molecular weight Mycobacterium tuberculosis nonhuman priority journal protein expression protein purification Adenosine Triphosphate Allosteric Regulation Amino Acid Sequence Cloning, Molecular Escherichia coli Proteins Genes, Suppressor Guanosine Triphosphate Kinetics Ligands Molecular Sequence Data Molecular Weight Polymerase Chain Reaction Pyrimidines Sequence Alignment Sequence Analysis, DNA Spectrometry, Mass, Electrospray Ionization Transferases Uridine Triphosphate Eukaryota |
description |
The pyrH-encoded uridine 5′-monophosphate kinase (UMPK) is involved in both de novo and salvage synthesis of DNA and RNA precursors. Here we describe Mycobacterium tuberculosis UMPK (MtUMPK) cloning and expression in Escherichia coli. N-terminal amino acid sequencing and electrospray ionization mass spectrometry analyses confirmed the identity of homogeneous MtUMPK. MtUMPK catalyzed the phosphorylation of UMP to UDP, using ATP-Mg 2+ as phosphate donor. Size exclusion chromatography showed that the protein is a homotetramer. Kinetic studies revealed that MtUMPK exhibits cooperative kinetics towards ATP and undergoes allosteric regulation. GTP and UTP are, respectively, positive and negative effectors, maintaining the balance of purine versus pyrimidine synthesis. Initial velocity studies and substrate(s) binding measured by isothermal titration calorimetry suggested that catalysis proceeds by a sequential ordered mechanism, in which ATP binds first followed by UMP binding, and release of products is random. As MtUMPK does not resemble its eukaryotic counterparts, specific inhibitors could be designed to be tested as antitubercular agents. © 2010 Elsevier Inc. All rights reserved. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-15 2014-05-27T11:25:27Z 2014-05-27T11:25:27Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.abb.2010.10.019 Archives of Biochemistry and Biophysics, v. 505, n. 2, p. 202-212, 2011. 0003-9861 1096-0384 http://hdl.handle.net/11449/72298 10.1016/j.abb.2010.10.019 2-s2.0-78651254744 2-s2.0-78651254744.pdf 2901888624506535 |
url |
http://dx.doi.org/10.1016/j.abb.2010.10.019 http://hdl.handle.net/11449/72298 |
identifier_str_mv |
Archives of Biochemistry and Biophysics, v. 505, n. 2, p. 202-212, 2011. 0003-9861 1096-0384 10.1016/j.abb.2010.10.019 2-s2.0-78651254744 2-s2.0-78651254744.pdf 2901888624506535 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Archives of Biochemistry and Biophysics 3.118 1,350 1,350 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
202-212 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965310289182720 |