@article {8028,
	title = {Two-gene mutation in a single patient: Biochemical and functional analysis for a correct interpretation of exome results.},
	journal = {Mol Med Rep},
	volume = {12},
	year = {2015},
	month = {2015 Oct},
	pages = {6128-32},
	abstract = {<p>Next-generation sequencing (NGS) has generated a large amount of sequence data with the requirement of frequent critical revisions of reported mutations. This innovative tool has proved to be effective in detecting pathogenic mutations; however, it requires a certain degree of experience to identify incidental findings. In the present study, whole exome sequencing analysis was performed for the molecular diagnosis and correct genotype/phenotype correlation between parents and a patient presenting with an atypical phenotype. In addition, mevalonic acid quantification and frequency analysis of detected variants in public databases and X-chromosome inactivation (XCI) studies on the patient{\textquoteright}s mother were performed. V377I as well as the S135L mutations were identified on the mevalonate kinase deficiency gene and the levels of mevalonic acid in the patient were 5,496 {\textmu}g/ml. A D59G variation, reported in ESP6500 in two healthy individuals, was found on the Martin Probst syndrome gene (RAB40AL). Based on XCI studies on the patient{\textquoteright}s mother, it is likely that RAB40AL escapes XCI, while still remaining balanced. In conclusion, the results of the present study indicated that the Martin Probst syndrome is an X-linked condition, which is probably not caused by RAB40AL mutations. Although NGS is a powerful tool to identify pathogenic mutations, the analysis of genetic data requires expert critical revision of all detected variants.</p>},
	issn = {1791-3004},
	doi = {10.3892/mmr.2015.4215},
	author = {Bianco, Anna Monica and Faletra, Flavio and Vozzi, Diego and Girardelli, Martina and Knowles, Alessandra and Tommasini, Alberto and Zauli, Giorgio and Marcuzzi, Annalisa}
}
