rs370266957
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate
The NM_201384.3(PLEC):c.9394C>T(p.Arg3132Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000194 in 1,596,990 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R3132L) has been classified as Uncertain significance.
Frequency
Consequence
NM_201384.3 missense
Scores
Clinical Significance
Conservation
Publications
- epidermolysis bullosa simplexInheritance: AD Classification: STRONG Submitted by: G2P
- epidermolysis bullosa simplex 5A, Ogna typeInheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia, Genomics England PanelApp
- autosomal recessive limb-girdle muscular dystrophy type 2QInheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
- congenital myasthenic syndromeInheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
- epidermolysis bullosa simplex 5B, with muscular dystrophyInheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Orphanet, Genomics England PanelApp
- epidermolysis bullosa simplex 5C, with pyloric atresiaInheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
- epidermolysis bullosa simplex with nail dystrophyInheritance: AR Classification: STRONG Submitted by: PanelApp Australia
- autosomal recessive limb-girdle muscular dystrophyInheritance: AR Classification: MODERATE Submitted by: ClinGen
- aplasia cutis congenitaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- cholestasisInheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Uncertain_significance. The variant received 2 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PLEC | ENST00000345136.8 | c.9394C>T | p.Arg3132Cys | missense_variant | Exon 32 of 32 | 1 | NM_201384.3 | ENSP00000344848.3 | ||
| PLEC | ENST00000356346.7 | c.9352C>T | p.Arg3118Cys | missense_variant | Exon 32 of 32 | 1 | NM_201378.4 | ENSP00000348702.3 |
Frequencies
GnomAD3 genomes AF: 0.0000328 AC: 5AN: 152228Hom.: 0 Cov.: 34 show subpopulations
GnomAD2 exomes AF: 0.0000559 AC: 13AN: 232660 AF XY: 0.0000468 show subpopulations
GnomAD4 exome AF: 0.0000173 AC: 25AN: 1444644Hom.: 0 Cov.: 73 AF XY: 0.0000167 AC XY: 12AN XY: 717750 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000394 AC: 6AN: 152346Hom.: 0 Cov.: 34 AF XY: 0.0000403 AC XY: 3AN XY: 74498 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
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Inborn genetic diseases Uncertain:1
The c.9475C>T (p.R3159C) alteration is located in exon 33 (coding exon 32) of the PLEC gene. This alteration results from a C to T substitution at nucleotide position 9475, causing the arginine (R) at amino acid position 3159 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Epidermolysis bullosa simplex, Ogna type;C2677349:Epidermolysis bullosa simplex 5C, with pyloric atresia;C2931072:Epidermolysis bullosa simplex 5B, with muscular dystrophy;C3150989:Autosomal recessive limb-girdle muscular dystrophy type 2Q;C4225309:Epidermolysis bullosa simplex with nail dystrophy Uncertain:1
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 3159 of the PLEC protein (p.Arg3159Cys). This variant is present in population databases (rs370266957, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with PLEC-related conditions. ClinVar contains an entry for this variant (Variation ID: 448082). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at