ClinVar Miner

Submissions for variant NM_001171613.2(PREPL):c.1595A>G (p.Lys532Arg)

gnomAD frequency: 0.00218  dbSNP: rs111438719
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV001083513 SCV000660110 likely benign Myasthenic syndrome, congenital, 22 2024-01-29 criteria provided, single submitter clinical testing
CeGaT Center for Human Genetics Tuebingen RCV000553009 SCV001152249 likely benign not provided 2024-07-01 criteria provided, single submitter clinical testing PREPL: BP4, BS2
Department of Pathology and Laboratory Medicine, Sinai Health System RCV000553009 SCV001550579 likely benign not provided no assertion criteria provided clinical testing The PREPL p.Lys532Arg variant was not identified in the literature but was identified in dbSNP (ID: rs111438719) and ClinVar (classified as likely benign by Invitae and as uncertain significance by CeGaT Praxis fuer Humangenetik Tuebingen). The variant was identified in control databases in 433 of 280810 chromosomes (1 homozygous) at a frequency of 0.001542 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database March 6, 2019, v2.1.1). The variant was observed in the following populations: Ashkenazi Jewish in 60 of 10336 chromosomes (freq: 0.005805), Latino in 142 of 35010 chromosomes (freq: 0.004056), African in 84 of 24904 chromosomes (freq: 0.003373), Other in 18 of 7174 chromosomes (freq: 0.002509), European (non-Finnish) in 116 of 128520 chromosomes (freq: 0.000903) and South Asian in 13 of 30024 chromosomes (freq: 0.000433), but was not observed in the East Asian or European (Finnish) populations. The p.Lys532 residue is conserved in mammals but not in more distantly related organisms however four out of five computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; this information is not predictive enough to rule out 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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