rs145507075
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_005055.5(RAPSN):c.1126C>T(p.Arg376Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000505 in 1,565,436 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. R376L) has been classified as Uncertain significance.
Frequency
Consequence
NM_005055.5 missense
Scores
Clinical Significance
Conservation
Publications
- fetal akinesia deformation sequence 2Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
- neuromuscular diseaseInheritance: AR Classification: DEFINITIVE Submitted by: Ambry Genetics
- congenital myasthenic syndrome 11Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp
- fetal akinesia deformation sequence 1Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- postsynaptic congenital myasthenic syndromeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| RAPSN | NM_005055.5 | c.1126C>T | p.Arg376Trp | missense_variant | Exon 7 of 8 | ENST00000298854.7 | NP_005046.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152074Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000638 AC: 12AN: 188054 AF XY: 0.0000599 show subpopulations
GnomAD4 exome AF: 0.0000509 AC: 72AN: 1413242Hom.: 0 Cov.: 34 AF XY: 0.0000445 AC XY: 31AN XY: 696808 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152194Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3AN XY: 74404 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:1
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Fetal akinesia deformation sequence 1;C4225367:Congenital myasthenic syndrome 11 Uncertain:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 376 of the RAPSN protein (p.Arg376Trp). This variant is present in population databases (rs145507075, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with RAPSN-related conditions. ClinVar contains an entry for this variant (Variation ID: 542735). 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 RAPSN protein function with a negative predictive value of 95%. 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. -
Congenital myasthenic syndrome Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at