chr2-110123807-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_001128178.3(NPHP1):c.2018G>A(p.Arg673Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,613,962 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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. R673S) has been classified as Uncertain significance.
Frequency
Consequence
NM_001128178.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
NPHP1 | NM_001128178.3 | c.2018G>A | p.Arg673Lys | missense_variant | 20/20 | ENST00000445609.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
NPHP1 | ENST00000445609.7 | c.2018G>A | p.Arg673Lys | missense_variant | 20/20 | 1 | NM_001128178.3 | P2 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152170Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000278 AC: 7AN: 251476Hom.: 0 AF XY: 0.0000368 AC XY: 5AN XY: 135918
GnomAD4 exome AF: 0.0000144 AC: 21AN: 1461792Hom.: 0 Cov.: 31 AF XY: 0.0000193 AC XY: 14AN XY: 727188
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152170Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74332
ClinVar
Submissions by phenotype
Nephronophthisis Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Sep 07, 2022 | This sequence change replaces arginine, which is basic and polar, with lysine, which is basic and polar, at codon 729 of the NPHP1 protein (p.Arg729Lys). This variant is present in population databases (rs753549193, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with NPHP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 968322). 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: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Mar 16, 2021 | Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Joubert syndrome with renal defect;C1855681:Nephronophthisis 1;C4551559:Senior-Loken syndrome 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Jan 08, 2022 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at