rs201465091
Variant summary
Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting
The NM_201384.3(PLEC):c.5965C>T(p.Arg1989Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000445 in 1,587,282 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. R1989H) 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 -3 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
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PLEC | ENST00000345136.8 | c.5965C>T | p.Arg1989Cys | missense_variant | Exon 31 of 32 | 1 | NM_201384.3 | ENSP00000344848.3 | ||
PLEC | ENST00000356346.7 | c.5923C>T | p.Arg1975Cys | missense_variant | Exon 31 of 32 | 1 | NM_201378.4 | ENSP00000348702.3 |
Frequencies
GnomAD3 genomes AF: 0.000211 AC: 32AN: 151716Hom.: 0 Cov.: 35 show subpopulations
GnomAD2 exomes AF: 0.000171 AC: 36AN: 210496 AF XY: 0.000178 show subpopulations
GnomAD4 exome AF: 0.000470 AC: 675AN: 1435566Hom.: 0 Cov.: 85 AF XY: 0.000458 AC XY: 327AN XY: 714260 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000211 AC: 32AN: 151716Hom.: 0 Cov.: 35 AF XY: 0.000229 AC XY: 17AN XY: 74110 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:5
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In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; 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;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 2016 of the PLEC protein (p.Arg2016Cys). This variant is present in population databases (rs201465091, gnomAD 0.04%). 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: 196735). 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 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. -
Epidermolysis bullosa simplex, Ogna type Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at