rs755750316
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2
The NM_174936.4(PCSK9):c.1847C>A(p.Pro616Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,598,766 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P616L) has been classified as Uncertain significance.
Frequency
Consequence
NM_174936.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -8 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152208Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000318 AC: 7AN: 219910Hom.: 0 AF XY: 0.0000253 AC XY: 3AN XY: 118536
GnomAD4 exome AF: 0.0000277 AC: 40AN: 1446558Hom.: 0 Cov.: 32 AF XY: 0.0000237 AC XY: 17AN XY: 717810
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152208Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74366
ClinVar
Submissions by phenotype
Hypercholesterolemia, autosomal dominant, 3 Uncertain:2
This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 616 of the PCSK9 protein (p.Pro616Gln). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with PCSK9-related conditions. ClinVar contains an entry for this variant (Variation ID: 492241). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PCSK9 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
This missense variant replaces proline with glutamine at codon 616 of the PCSK9 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with familial hypercholesterolemia in the literature. This variant has been identified in 7/219910 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Familial hypercholesterolemia Uncertain:1
This missense variant replaces proline with glutamine at codon 616 of the PCSK9 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with PCSK9-related disorders in the literature. This variant has been identified in 7/219910 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at