ClinVar Miner

Submissions for variant NM_000277.3(PAH):c.441+4A>G

gnomAD frequency: 0.00001  dbSNP: rs62508586
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen PAH Variant Curation Expert Panel RCV000669322 SCV001146726 uncertain significance Phenylketonuria 2019-09-29 reviewed by expert panel curation The c.441+4A>G variant in PAH has been reported in an individual with PAH deficiency (PP4) with likely pathogenic variant p.Val230Ile (PM3-supporting) (PMID: 12655553); and an Iranian patient with PAH deficiency ( PMID: 28676969, 2nd variant not reported). This variant is absent in population databases (PM2). Computational evidence support a splicing effect (HSF and MaxEnt). In summary, this variant meets criteria to be classified as uncertain significance for PAH. PAH-specific ACMG/AMP criteria applied: PP4, PM2, PM3_supporting, PP3.
Counsyl RCV000669322 SCV000794065 uncertain significance Phenylketonuria 2017-09-07 criteria provided, single submitter clinical testing
Invitae RCV000669322 SCV000814138 pathogenic Phenylketonuria 2023-12-23 criteria provided, single submitter clinical testing This sequence change falls in intron 4 of the PAH gene. It does not directly change the encoded amino acid sequence of the PAH protein. It affects a nucleotide within the consensus splice site. This variant is not present in population databases (gnomAD no frequency). This variant has been observed in individual(s) with PAH-related conditions (PMID: 12655553, 19015950, 28676969; Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 102674). Variants that disrupt 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. For these reasons, this variant has been classified as Pathogenic.
DeBelle Laboratory for Biochemical Genetics, MUHC/MCH RESEARCH INSTITUTE RCV000088922 SCV000119520 not provided not provided no assertion provided not provided

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