rs782544250
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_201384.3(PLEC):c.3460C>T(p.Arg1154Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000134 in 1,586,710 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. R1154Q) 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: Likely_benign. 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.3460C>T | p.Arg1154Trp | missense_variant | Exon 27 of 32 | 1 | NM_201384.3 | ENSP00000344848.3 | ||
| PLEC | ENST00000356346.7 | c.3418C>T | p.Arg1140Trp | missense_variant | Exon 27 of 32 | 1 | NM_201378.4 | ENSP00000348702.3 |
Frequencies
GnomAD3 genomes AF: 0.000112 AC: 17AN: 152192Hom.: 0 Cov.: 34 show subpopulations
GnomAD2 exomes AF: 0.000130 AC: 27AN: 207122 AF XY: 0.000149 show subpopulations
GnomAD4 exome AF: 0.000136 AC: 195AN: 1434518Hom.: 0 Cov.: 34 AF XY: 0.000144 AC XY: 102AN XY: 710276 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000112 AC: 17AN: 152192Hom.: 0 Cov.: 34 AF XY: 0.000108 AC XY: 8AN XY: 74338 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:3
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In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Missense variant in a gene in which most reported pathogenic variants are truncating/loss of function; Has not been previously published as pathogenic or benign to our knowledge -
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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 Other:2
Variant interpreted as Uncertain significance and reported on 12-08-2017 by Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -
Variant interpreted as Uncertain significance and reported on 05-29-2019 by Lab or GTR ID 500031. GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -
Inborn genetic diseases Uncertain:1
The c.3541C>T (p.R1181W) alteration is located in exon 28 (coding exon 27) of the PLEC gene. This alteration results from a C to T substitution at nucleotide position 3541, causing the arginine (R) at amino acid position 1181 to be replaced by a tryptophan (W). 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 tryptophan, which is neutral and slightly polar, at codon 1181 of the PLEC protein (p.Arg1181Trp). This variant is present in population databases (rs782544250, gnomAD 0.02%). 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: 378372). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt PLEC 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at