rs587780498
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_152564.5(VPS13B):c.5285G>A(p.Arg1762His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000335 in 1,613,848 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R1762C) has been classified as Uncertain significance.
Frequency
Consequence
NM_152564.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
VPS13B | ENST00000358544.7 | c.5360G>A | p.Arg1787His | missense_variant | Exon 34 of 62 | 1 | NM_017890.5 | ENSP00000351346.2 | ||
VPS13B | ENST00000357162.7 | c.5285G>A | p.Arg1762His | missense_variant | Exon 34 of 62 | 1 | NM_152564.5 | ENSP00000349685.2 |
Frequencies
GnomAD3 genomes AF: 0.0000921 AC: 14AN: 152078Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000239 AC: 6AN: 250910Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135592
GnomAD4 exome AF: 0.0000274 AC: 40AN: 1461770Hom.: 0 Cov.: 31 AF XY: 0.0000261 AC XY: 19AN XY: 727182
GnomAD4 genome AF: 0.0000921 AC: 14AN: 152078Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3AN XY: 74268
ClinVar
Submissions by phenotype
Cohen syndrome Uncertain:4
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1787 of the VPS13B protein (p.Arg1787His). This variant is present in population databases (rs587780498, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with VPS13B-related conditions. ClinVar contains an entry for this variant (Variation ID: 130726). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Not Available"). 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. -
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This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -
not provided Uncertain:2
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Inborn genetic diseases Uncertain:1
The c.5360G>A (p.R1787H) alteration is located in exon 34 (coding exon 33) of the VPS13B gene. This alteration results from a G to A substitution at nucleotide position 5360, causing the arginine (R) at amino acid position 1787 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at