Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural Analysis
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most frequent human enzymopathy, affecting over 400 million people globally. Worldwide, 217 mutations have been reported at the genetic level, and only 19 have been found in Mexico. The objective of this work was to contribute to the knowled...
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Format: | Article |
Language: | English |
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MDPI AG
2020-04-01
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Series: | International Journal of Molecular Sciences |
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Online Access: | https://www.mdpi.com/1422-0067/21/8/2732 |
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record_format |
Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Víctor Martínez-Rosas Merit Valeria Juárez-Cruz Edson Jiovany Ramírez-Nava Beatriz Hernández-Ochoa Laura Morales-Luna Abigail González-Valdez Hugo Serrano-Posada Noemí Cárdenas-Rodríguez Paulina Ortiz-Ramírez Sara Centeno-Leija Roberto Arreguin-Espinosa Miguel Cuevas-Cruz Daniel Ortega-Cuellar Verónica Pérez de la Cruz Luz María Rocha-Ramírez Edgar Sierra-Palacios Rosa Angélica Castillo-Rodríguez Isabel Baeza-Ramírez Jaime Marcial-Quino Saúl Gómez-Manzo |
spellingShingle |
Víctor Martínez-Rosas Merit Valeria Juárez-Cruz Edson Jiovany Ramírez-Nava Beatriz Hernández-Ochoa Laura Morales-Luna Abigail González-Valdez Hugo Serrano-Posada Noemí Cárdenas-Rodríguez Paulina Ortiz-Ramírez Sara Centeno-Leija Roberto Arreguin-Espinosa Miguel Cuevas-Cruz Daniel Ortega-Cuellar Verónica Pérez de la Cruz Luz María Rocha-Ramírez Edgar Sierra-Palacios Rosa Angélica Castillo-Rodríguez Isabel Baeza-Ramírez Jaime Marcial-Quino Saúl Gómez-Manzo Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural Analysis International Journal of Molecular Sciences human G6PD mutants G6PD deficiency protein stability structural characterization catalytic activity |
author_facet |
Víctor Martínez-Rosas Merit Valeria Juárez-Cruz Edson Jiovany Ramírez-Nava Beatriz Hernández-Ochoa Laura Morales-Luna Abigail González-Valdez Hugo Serrano-Posada Noemí Cárdenas-Rodríguez Paulina Ortiz-Ramírez Sara Centeno-Leija Roberto Arreguin-Espinosa Miguel Cuevas-Cruz Daniel Ortega-Cuellar Verónica Pérez de la Cruz Luz María Rocha-Ramírez Edgar Sierra-Palacios Rosa Angélica Castillo-Rodríguez Isabel Baeza-Ramírez Jaime Marcial-Quino Saúl Gómez-Manzo |
author_sort |
Víctor Martínez-Rosas |
title |
Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural Analysis |
title_short |
Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural Analysis |
title_full |
Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural Analysis |
title_fullStr |
Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural Analysis |
title_full_unstemmed |
Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural Analysis |
title_sort |
effects of single and double mutants in human glucose-6-phosphate dehydrogenase variants present in the mexican population: biochemical and structural analysis |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1661-6596 1422-0067 |
publishDate |
2020-04-01 |
description |
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most frequent human enzymopathy, affecting over 400 million people globally. Worldwide, 217 mutations have been reported at the genetic level, and only 19 have been found in Mexico. The objective of this work was to contribute to the knowledge of the function and structure of three single natural variants (G6PD A+, G6PD San Luis Potosi, and G6PD Guadalajara) and a double mutant (G6PD Mount Sinai), each localized in a different region of the three-dimensional (3D) structure. In the functional characterization of the mutants, we observed a decrease in specific activity, protein expression and purification, catalytic efficiency, and substrate affinity in comparison with wild-type (WT) G6PD. Moreover, the analysis of the effect of all mutations on the structural stability showed that its presence increases denaturation and lability with temperature and it is more sensible to trypsin digestion protease and guanidine hydrochloride compared with WT G6PD. This could be explained by accelerated degradation of the variant enzymes due to reduced stability of the protein, as is shown in patients with G6PD deficiency. |
topic |
human G6PD mutants G6PD deficiency protein stability structural characterization catalytic activity |
url |
https://www.mdpi.com/1422-0067/21/8/2732 |
work_keys_str_mv |
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doaj-9172333e8b7142509c2206e67a69f9d02020-11-25T02:22:55ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-04-01212732273210.3390/ijms21082732Effects of Single and Double Mutants in Human Glucose-6-Phosphate Dehydrogenase Variants Present in the Mexican Population: Biochemical and Structural AnalysisVíctor Martínez-Rosas0Merit Valeria Juárez-Cruz1Edson Jiovany Ramírez-Nava2Beatriz Hernández-Ochoa3Laura Morales-Luna4Abigail González-Valdez5Hugo Serrano-Posada6Noemí Cárdenas-Rodríguez7Paulina Ortiz-Ramírez8Sara Centeno-Leija9Roberto Arreguin-Espinosa10Miguel Cuevas-Cruz11Daniel Ortega-Cuellar12Verónica Pérez de la Cruz13Luz María Rocha-Ramírez14Edgar Sierra-Palacios15Rosa Angélica Castillo-Rodríguez16Isabel Baeza-Ramírez17Jaime Marcial-Quino18Saúl Gómez-Manzo19Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoDepartamento de Ingeniería Bioquímica, Posgrado en Ciencias de los Alimentos, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, MexicoLaboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoPrograma de Posgrado en Biomedicina y Biotecnología Molecular, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, MexicoLaboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoDepartamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad de México 04510, MexicoConsejo Nacional de Ciencia y Tecnología (CONACYT), Laboratorio de Agrobiotecnología, Tecnoparque CLQ, Universidad de Colima, Carretera los Limones-Loma de Juárez, Colima 28629, MexicoLaboratorio de Neurociencias, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoLaboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoConsejo Nacional de Ciencia y Tecnología (CONACYT), Laboratorio de Agrobiotecnología, Tecnoparque CLQ, Universidad de Colima, Carretera los Limones-Loma de Juárez, Colima 28629, MexicoDepartamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, MexicoDepartamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, MexicoLaboratorio de Nutrición Experimental, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoDepartamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez, S.S.A., Ciudad de México 14269, MexicoDepartamento de Infectología, Hospital Infantil de México Federico Gómez, Delegación Cuauhtémoc, Ciudad de México 06720, MexicoColegio de Ciencias y Humanidades, Plantel Casa Libertad, Universidad Autónoma de la Ciudad de México, Ciudad de México 09620, MexicoConsejo Nacional de Ciencia y Tecnología (CONACYT), Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoLaboratorio de Biomembranas. Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, MexicoConsejo Nacional de Ciencia y Tecnología (CONACYT), Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoLaboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de México 04530, MexicoGlucose-6-phosphate dehydrogenase (G6PD) deficiency is the most frequent human enzymopathy, affecting over 400 million people globally. Worldwide, 217 mutations have been reported at the genetic level, and only 19 have been found in Mexico. The objective of this work was to contribute to the knowledge of the function and structure of three single natural variants (G6PD A+, G6PD San Luis Potosi, and G6PD Guadalajara) and a double mutant (G6PD Mount Sinai), each localized in a different region of the three-dimensional (3D) structure. In the functional characterization of the mutants, we observed a decrease in specific activity, protein expression and purification, catalytic efficiency, and substrate affinity in comparison with wild-type (WT) G6PD. Moreover, the analysis of the effect of all mutations on the structural stability showed that its presence increases denaturation and lability with temperature and it is more sensible to trypsin digestion protease and guanidine hydrochloride compared with WT G6PD. This could be explained by accelerated degradation of the variant enzymes due to reduced stability of the protein, as is shown in patients with G6PD deficiency.https://www.mdpi.com/1422-0067/21/8/2732human G6PD mutantsG6PD deficiencyprotein stabilitystructural characterizationcatalytic activity |