ClinVar Miner

Submissions for variant NM_000531.6(OTC):c.77+5G>C

dbSNP: rs72552302
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001089869 SCV002250624 likely pathogenic Ornithine carbamoyltransferase deficiency 2021-06-01 criteria provided, single submitter clinical testing In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. Nucleotide substitutions within the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. This variant has been observed in individual(s) with clinical features of X-linked ornithine transcarbamylase deficiency (external communication, Invitae). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 870325). This variant is not present in population databases (ExAC no frequency). This sequence change falls in intron 1 of the OTC gene. It does not directly change the encoded amino acid sequence of the OTC protein. It affects a nucleotide within the consensus splice site of the intron.
Molecular Genetics laboratory, Necker Hospital RCV001089869 SCV001193461 pathogenic Ornithine carbamoyltransferase deficiency no assertion criteria provided clinical testing a girl with a paroxysmal form

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