New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations
- Autores
- Ramos, Mónica; Menao, Sebastián; Arnedo, María; Puisac, Beatriz; Gil Rodríguez, María Concepción; Teresa Rodrigo, María Esperanza; Hernández Marcos, María; Pierre, Germaine; Ramaswami, Uma; Baquero Montoya, Carolina; Bueno, Gloria; Casale, Cesar Horacio; Hegardt, Fausto G.; Gómez Puertas, Paulino; Pié, Juan
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Mitochondrial HMG-CoA synthase deficiency is a rare inherited metabolic disorder that affects ketone-body synthesis. Acute episodes include vomiting, lethargy, hepatomegaly, hypoglycaemia, dicarboxylic aciduria, and in severe cases, coma. This deficiency may have been under-diagnosed owing to the absence of specific clinical and biochemical markers, limitations in liver biopsy and the lack of an effective method of expression and enzyme assay for verifying the mutations found. To date, eight patients have been reported with nine allelic variants of the HMGCS2 gene. We present a new method of enzyme expression and a modification of the activity assay that allows, for first time, the functional study of missense mutations found in patients with this deficiency. Four of the missense mutations (p.V54M, p.R188H, p.G212R and p.G388R) did not produce proteins that could have been detected in soluble form by western blot; three produced a total loss of activity (p.Y167C, p.M307T and p.R500H) and one, variant p.F174L, gave an enzyme with a catalytic efficiency of 11.5%. This indicates that the deficiency may occur with partial loss of activity of enzyme. In addition, we describe a new patient with this deficiency, in which we detected the missense allelic variant, c.1162G>A (p.G388R) and the nonsense variant c.1270C>T (p.R424X).
Fil: Ramos, Mónica. Universidad de Zaragoza; España
Fil: Menao, Sebastián. Universidad de Zaragoza; España
Fil: Arnedo, María. Universidad de Zaragoza; España
Fil: Puisac, Beatriz. Universidad de Zaragoza; España
Fil: Gil Rodríguez, María Concepción. Universidad de Zaragoza; España
Fil: Teresa Rodrigo, María Esperanza. Universidad de Zaragoza; España
Fil: Hernández Marcos, María. Universidad de Zaragoza; España
Fil: Pierre, Germaine. Birmingham Children’s Hospital; Reino Unido
Fil: Ramaswami, Uma. Central Manchester University Hospitals; Reino Unido
Fil: Baquero Montoya, Carolina. Universidad de Zaragoza; España
Fil: Bueno, Gloria. Universidad de Zaragoza; España
Fil: Casale, Cesar Horacio. Universidad de Zaragoza; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Hegardt, Fausto G.. Universidad de Barcelona; España
Fil: Gómez Puertas, Paulino. Consejo Superior de Investigaciones Científicas; España. Universidad Autónoma de Madrid; España
Fil: Pié, Juan. Universidad de Zaragoza; España - Materia
-
Mitochondrial Hmg-Coa Synthase Deficiency
Mutations
Ketone Bodies - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/24671
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New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutationsRamos, MónicaMenao, SebastiánArnedo, MaríaPuisac, BeatrizGil Rodríguez, María ConcepciónTeresa Rodrigo, María EsperanzaHernández Marcos, MaríaPierre, GermaineRamaswami, UmaBaquero Montoya, CarolinaBueno, GloriaCasale, Cesar HoracioHegardt, Fausto G.Gómez Puertas, PaulinoPié, JuanMitochondrial Hmg-Coa Synthase DeficiencyMutationsKetone Bodieshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Mitochondrial HMG-CoA synthase deficiency is a rare inherited metabolic disorder that affects ketone-body synthesis. Acute episodes include vomiting, lethargy, hepatomegaly, hypoglycaemia, dicarboxylic aciduria, and in severe cases, coma. This deficiency may have been under-diagnosed owing to the absence of specific clinical and biochemical markers, limitations in liver biopsy and the lack of an effective method of expression and enzyme assay for verifying the mutations found. To date, eight patients have been reported with nine allelic variants of the HMGCS2 gene. We present a new method of enzyme expression and a modification of the activity assay that allows, for first time, the functional study of missense mutations found in patients with this deficiency. Four of the missense mutations (p.V54M, p.R188H, p.G212R and p.G388R) did not produce proteins that could have been detected in soluble form by western blot; three produced a total loss of activity (p.Y167C, p.M307T and p.R500H) and one, variant p.F174L, gave an enzyme with a catalytic efficiency of 11.5%. This indicates that the deficiency may occur with partial loss of activity of enzyme. In addition, we describe a new patient with this deficiency, in which we detected the missense allelic variant, c.1162G>A (p.G388R) and the nonsense variant c.1270C>T (p.R424X).Fil: Ramos, Mónica. Universidad de Zaragoza; EspañaFil: Menao, Sebastián. Universidad de Zaragoza; EspañaFil: Arnedo, María. Universidad de Zaragoza; EspañaFil: Puisac, Beatriz. Universidad de Zaragoza; EspañaFil: Gil Rodríguez, María Concepción. Universidad de Zaragoza; EspañaFil: Teresa Rodrigo, María Esperanza. Universidad de Zaragoza; EspañaFil: Hernández Marcos, María. Universidad de Zaragoza; EspañaFil: Pierre, Germaine. Birmingham Children’s Hospital; Reino UnidoFil: Ramaswami, Uma. Central Manchester University Hospitals; Reino UnidoFil: Baquero Montoya, Carolina. Universidad de Zaragoza; EspañaFil: Bueno, Gloria. Universidad de Zaragoza; EspañaFil: Casale, Cesar Horacio. Universidad de Zaragoza; España. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Hegardt, Fausto G.. Universidad de Barcelona; EspañaFil: Gómez Puertas, Paulino. Consejo Superior de Investigaciones Científicas; España. Universidad Autónoma de Madrid; EspañaFil: Pié, Juan. Universidad de Zaragoza; EspañaElsevier Masson2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24671Ramos, Mónica; Menao, Sebastián; Arnedo, María; Puisac, Beatriz; Gil Rodríguez, María Concepción; et al.; New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations; Elsevier Masson; European Journal Of Medical Genetics; 56; 8; 6-2013; 411-4151769-7212CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ejmg.2013.05.008info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1769721213001262info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:00Zoai:ri.conicet.gov.ar:11336/24671instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:50:00.71CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations |
title |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations |
spellingShingle |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations Ramos, Mónica Mitochondrial Hmg-Coa Synthase Deficiency Mutations Ketone Bodies |
title_short |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations |
title_full |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations |
title_fullStr |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations |
title_full_unstemmed |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations |
title_sort |
New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations |
dc.creator.none.fl_str_mv |
Ramos, Mónica Menao, Sebastián Arnedo, María Puisac, Beatriz Gil Rodríguez, María Concepción Teresa Rodrigo, María Esperanza Hernández Marcos, María Pierre, Germaine Ramaswami, Uma Baquero Montoya, Carolina Bueno, Gloria Casale, Cesar Horacio Hegardt, Fausto G. Gómez Puertas, Paulino Pié, Juan |
author |
Ramos, Mónica |
author_facet |
Ramos, Mónica Menao, Sebastián Arnedo, María Puisac, Beatriz Gil Rodríguez, María Concepción Teresa Rodrigo, María Esperanza Hernández Marcos, María Pierre, Germaine Ramaswami, Uma Baquero Montoya, Carolina Bueno, Gloria Casale, Cesar Horacio Hegardt, Fausto G. Gómez Puertas, Paulino Pié, Juan |
author_role |
author |
author2 |
Menao, Sebastián Arnedo, María Puisac, Beatriz Gil Rodríguez, María Concepción Teresa Rodrigo, María Esperanza Hernández Marcos, María Pierre, Germaine Ramaswami, Uma Baquero Montoya, Carolina Bueno, Gloria Casale, Cesar Horacio Hegardt, Fausto G. Gómez Puertas, Paulino Pié, Juan |
author2_role |
author author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
Mitochondrial Hmg-Coa Synthase Deficiency Mutations Ketone Bodies |
topic |
Mitochondrial Hmg-Coa Synthase Deficiency Mutations Ketone Bodies |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Mitochondrial HMG-CoA synthase deficiency is a rare inherited metabolic disorder that affects ketone-body synthesis. Acute episodes include vomiting, lethargy, hepatomegaly, hypoglycaemia, dicarboxylic aciduria, and in severe cases, coma. This deficiency may have been under-diagnosed owing to the absence of specific clinical and biochemical markers, limitations in liver biopsy and the lack of an effective method of expression and enzyme assay for verifying the mutations found. To date, eight patients have been reported with nine allelic variants of the HMGCS2 gene. We present a new method of enzyme expression and a modification of the activity assay that allows, for first time, the functional study of missense mutations found in patients with this deficiency. Four of the missense mutations (p.V54M, p.R188H, p.G212R and p.G388R) did not produce proteins that could have been detected in soluble form by western blot; three produced a total loss of activity (p.Y167C, p.M307T and p.R500H) and one, variant p.F174L, gave an enzyme with a catalytic efficiency of 11.5%. This indicates that the deficiency may occur with partial loss of activity of enzyme. In addition, we describe a new patient with this deficiency, in which we detected the missense allelic variant, c.1162G>A (p.G388R) and the nonsense variant c.1270C>T (p.R424X). Fil: Ramos, Mónica. Universidad de Zaragoza; España Fil: Menao, Sebastián. Universidad de Zaragoza; España Fil: Arnedo, María. Universidad de Zaragoza; España Fil: Puisac, Beatriz. Universidad de Zaragoza; España Fil: Gil Rodríguez, María Concepción. Universidad de Zaragoza; España Fil: Teresa Rodrigo, María Esperanza. Universidad de Zaragoza; España Fil: Hernández Marcos, María. Universidad de Zaragoza; España Fil: Pierre, Germaine. Birmingham Children’s Hospital; Reino Unido Fil: Ramaswami, Uma. Central Manchester University Hospitals; Reino Unido Fil: Baquero Montoya, Carolina. Universidad de Zaragoza; España Fil: Bueno, Gloria. Universidad de Zaragoza; España Fil: Casale, Cesar Horacio. Universidad de Zaragoza; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Hegardt, Fausto G.. Universidad de Barcelona; España Fil: Gómez Puertas, Paulino. Consejo Superior de Investigaciones Científicas; España. Universidad Autónoma de Madrid; España Fil: Pié, Juan. Universidad de Zaragoza; España |
description |
Mitochondrial HMG-CoA synthase deficiency is a rare inherited metabolic disorder that affects ketone-body synthesis. Acute episodes include vomiting, lethargy, hepatomegaly, hypoglycaemia, dicarboxylic aciduria, and in severe cases, coma. This deficiency may have been under-diagnosed owing to the absence of specific clinical and biochemical markers, limitations in liver biopsy and the lack of an effective method of expression and enzyme assay for verifying the mutations found. To date, eight patients have been reported with nine allelic variants of the HMGCS2 gene. We present a new method of enzyme expression and a modification of the activity assay that allows, for first time, the functional study of missense mutations found in patients with this deficiency. Four of the missense mutations (p.V54M, p.R188H, p.G212R and p.G388R) did not produce proteins that could have been detected in soluble form by western blot; three produced a total loss of activity (p.Y167C, p.M307T and p.R500H) and one, variant p.F174L, gave an enzyme with a catalytic efficiency of 11.5%. This indicates that the deficiency may occur with partial loss of activity of enzyme. In addition, we describe a new patient with this deficiency, in which we detected the missense allelic variant, c.1162G>A (p.G388R) and the nonsense variant c.1270C>T (p.R424X). |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/24671 Ramos, Mónica; Menao, Sebastián; Arnedo, María; Puisac, Beatriz; Gil Rodríguez, María Concepción; et al.; New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations; Elsevier Masson; European Journal Of Medical Genetics; 56; 8; 6-2013; 411-415 1769-7212 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/24671 |
identifier_str_mv |
Ramos, Mónica; Menao, Sebastián; Arnedo, María; Puisac, Beatriz; Gil Rodríguez, María Concepción; et al.; New case of mitochondrial HMG-CoA synthase deficiency. Functional analysis of eight mutations; Elsevier Masson; European Journal Of Medical Genetics; 56; 8; 6-2013; 411-415 1769-7212 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ejmg.2013.05.008 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1769721213001262 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Masson |
publisher.none.fl_str_mv |
Elsevier Masson |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613543839662080 |
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13.070432 |