Widening the infantile hypotonia with psychomotor retardation and characteristic Facies-1 Syndrome's clinical and molecular spectrum through NALCN in-silico structural analysis.
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Ошибки и ограничения
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Vecchio Davide, Macchiaiolo Marina, Gonfiantini Michaela V, Panfili Filippo M, Petrizzelli Francesco, Liorni Niccolò, Cortellessa Fabiana, Sinibaldi Lorenzo, Rana Ippolita, Agolini Emanuele, Cocciadiferro Dario, Colantoni Nicole, Semeraro Michela, Rizzo Cristiano, Deodati Annalisa, Cotugno Nicola, Caggiano Serena, Verrillo Elisabetta, Nucci Carlotta G, Alkan Serpil, Saraiva Jorge M, De Sá Joaquim, Almeida Pedro M, Krishna Jayanth, Buonuomo Paola S, Martinelli Diego, Dionisi Vici Carlo, Caputo Viviana, Bartuli Andrea, Novelli Antonio, Mazza Tommaso
Аннотация
METHODS: We enrolled a new IHPRF1 patients' cohort in the framework of an international multicentric collaboration study. Using specialized in silico pathogenicity predictors and ad hoc structural analyses, we assessed the mechanistic consequences of the deleterious variants retrieved on NALCN structure and function.
RESULTS: To date 38 different NALCN variants have been retrieved from 33 different families, 26 from unrelated and 22 from related patients. We report on five new IHPRF1 patients from four different families, harboring four newly identified and one previously retrieved variant that exhibited a markedly significant functional impact, thereby compromising the functionality of the protein complex.
DISCUSSION: By widening the functional spectrum of biallelic variants affecting the NALCN gene, this article broadens the IHPRF1 syndrome's genotype-phenotype correlation and gives new insight into its pathogenic mechanism, diagnosis, and clinical management.