Artículo
Functional analysis of six uncharacterised mutations in LDLR gene
Gomez, Andrea; Colombo, Roberto; Pontoglio, Alessandro; Helman, Lorena; Kaeser, Luciana; Giunta, Gustavo Ariel
; Parolin, María Laura
; Toscanini, Ulises Faustino; Cuniberti, Luis Alberto
Fecha de publicación:
12/2019
Editorial:
Elsevier Ireland
Revista:
Atherosclerosis
ISSN:
0021-9150
e-ISSN:
1879-1484
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Background and aims: Familial hypercholesterolemia (FH) is a primary hyperlipemia. It is an autosomal dominant genetic disorder of lipoproteins metabolism mainly caused by mutations in the low density lipoprotein receptor gene (LDLR). We aimed to investigate the functional impact on the low density lipoprotein receptor (LDLR) activity of six uncharacterised variants located in the coding region of the LDLR gene, namely c.428G > T, c.640T > C, c.1708C > T, c.1736A > T, c.1981C > G and c.2114C > G (NM_000527.4) and to attempt to define their clinical status. Methods: Functional studies were carried out using site-directed mutagenesis techniques and expression of LDLR protein in vitro. Results were correlated with clinical data and in silico analyses in order to assess the physiopathological role of these variants. Results: This work provides functional information about 6 uncharacterised mutations in LDLR. Conclusions: The six variants studied here appeared to affect the LDLR function in vitro to different degrees, ranging from receptors with normal to slightly reduced activity to receptors exhibiting less than 10% of the wild-type activity. According to these studies and The American College of Medical Genetics and Genomics (ACMG) Standards and Guidelines, two variants could be classified as “Likely Benign” (p.(Ala705Gly) and p.(Leu570Phe)), three variants as “Pathogenic” (p.(Asp579Val), p.(Cys143Phe) and p.(Trp214Arg)) and one variant as “Likely Pathogenic” (p.(Pro661Ala)).
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Articulos (IMETTYB)
Articulos de INSTITUTO DE MEDICINA TRASLACIONAL, TRASPLANTE Y BIOINGENIERIA
Articulos de INSTITUTO DE MEDICINA TRASLACIONAL, TRASPLANTE Y BIOINGENIERIA
Articulos(IDEAUS)
Articulos de INSTITUTO DE DIVERSIDAD Y EVOLUCION AUSTRAL
Articulos de INSTITUTO DE DIVERSIDAD Y EVOLUCION AUSTRAL
Citación
Gomez, Andrea; Colombo, Roberto; Pontoglio, Alessandro; Helman, Lorena; Kaeser, Luciana; et al.; Functional analysis of six uncharacterised mutations in LDLR gene; Elsevier Ireland; Atherosclerosis; 291; 12-2019; 44-51
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