Report of a novel mutation in the SLC26A2 gene foud in a colomian adult patient with diastrophic dysplasia
Reporte de una nueva mutación en el gen SLC26A2 en un paciente adulto colombiano con displasia diastrófica
Palabras clave:
Colombia, Osteochondrodysplasias, Transcriptional Activation, Mutation (en)Activación Transcripcional, Colombia, Mutación, Osteocondrodisplasias (es)
Background. Diastrophic dysplasia is an osteochondrodysplasia belonging to the group of dysplasias caused by mutations in the diastrophic dysplasia sulfate transporter. This sindrome is a micromelic dysplasia with multiple bone deformities of the hands, feet, knees and spine.
Objective. Describe the first report of diastrophic displasia in Colombia
Materials and methods. In this paper a Colombian adult patient with diastrophic dysplasia whose clinical diagnosis was confirmed at the molecular level is reported.
Results. In this first report of diastrophic dysplasia in Colombia we found that the patient was compound heterozygote for the already reported Arg279Trp substitution and an unpublished mutation, a Ser157Thr substitution in the SLC26A2 gene.
Conclusion. Bioinformatic analysis on the latter mutation suggested that it could correspond to a deleterious mutation because it is in a highly conserved domain of the sulfate transporter.
Antecedentes. La displasia diastrófica es una osteocondrodisplasia que pertenece al grupo de las enfermedades genéticas del esqueleto causadas por mutaciones en los transportadores de sulfato. Se presenta como una displasia micromélica con afectación de múltiples huesos y deformidades en manos, pies, rodillas y columna vertebral.
Objetivo. Describir el primer reporte de displasia diastrófica en Colombia.
Materiales y métodos. Se reporta un adulto colombiano con esta displasia, con confirmación clínica, radiológica y molecular.
Resultados. En este primer reporte colombiano, se encontró que la paciente presentó una mutación heterocigota compuesta, de Arg279Trp y Ser157Thr, esta última no reportada previamente, en el gen SLC26A2.
Conclusión. El análisis bioinformático de la mutación nueva sugiere que podría corresponder a una mutación deletérea dado que el dominio afectado en el transportador de sulfatos es altamente conservado.
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