ClinVar Miner

Submissions for variant NM_001009944.3(PKD1):c.11978C>T (p.Ser3993Leu)

gnomAD frequency: 0.00005  dbSNP: rs775512866
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV002547623 SCV003716440 uncertain significance Inborn genetic diseases 2022-07-19 criteria provided, single submitter clinical testing The c.11975C>T (p.S3992L) alteration is located in exon 43 (coding exon 43) of the PKD1 gene. This alteration results from a C to T substitution at nucleotide position 11975, causing the serine (S) at amino acid position 3992 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.
Department of Pathology and Laboratory Medicine, Sinai Health System RCV001355916 SCV001550939 likely benign not provided no assertion criteria provided clinical testing The PKD1 p.Ser3993Leu variant was not identified in the literature nor was it identified in ClinVar or LOVD 3.0. The variant was identified in dbSNP (ID: rs775512866) and in control databases in 18 of 238430 chromosomes (2 homozygous) at a frequency of 0.00007549 (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: South Asian in 8 of 29038 chromosomes (freq: 0.000276), Latino in 7 of 33260 chromosomes (freq: 0.000211) and European (non-Finnish) in 3 of 106508 chromosomes (freq: 0.000028), but was not observed in the African, Ashkenazi Jewish, East Asian, European (Finnish), or Other populations. The p.Ser3993 residue is conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign.

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