rs200484638

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_201384.3(PLEC):​c.3016C>T​(p.Arg1006Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000399 in 1,603,268 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. R1006H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

PLEC
NM_201384.3 missense

Scores

5
8
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.22

Publications

2 publications found
Variant links:
Genes affected
PLEC (HGNC:9069): (plectin) Plectin is a prominent member of an important family of structurally and in part functionally related proteins, termed plakins or cytolinkers, that are capable of interlinking different elements of the cytoskeleton. Plakins, with their multi-domain structure and enormous size, not only play crucial roles in maintaining cell and tissue integrity and orchestrating dynamic changes in cytoarchitecture and cell shape, but also serve as scaffolding platforms for the assembly, positioning, and regulation of signaling complexes (reviewed in PMID: 9701547, 11854008, and 17499243). Plectin is expressed as several protein isoforms in a wide range of cell types and tissues from a single gene located on chromosome 8 in humans (PMID: 8633055, 8698233). Until 2010, this locus was named plectin 1 (symbol PLEC1 in human; Plec1 in mouse and rat) and the gene product had been referred to as "hemidesmosomal protein 1" or "plectin 1, intermediate filament binding 500kDa". These names were superseded by plectin. The plectin gene locus in mouse on chromosome 15 has been analyzed in detail (PMID: 10556294, 14559777), revealing a genomic exon-intron organization with well over 40 exons spanning over 62 kb and an unusual 5' transcript complexity of plectin isoforms. Eleven exons (1-1j) have been identified that alternatively splice directly into a common exon 2 which is the first exon to encode plectin's highly conserved actin binding domain (ABD). Three additional exons (-1, 0a, and 0) splice into an alternative first coding exon (1c), and two additional exons (2alpha and 3alpha) are optionally spliced within the exons encoding the acting binding domain (exons 2-8). Analysis of the human locus has identified eight of the eleven alternative 5' exons found in mouse and rat (PMID: 14672974); exons 1i, 1j and 1h have not been confirmed in human. Furthermore, isoforms lacking the central rod domain encoded by exon 31 have been detected in mouse (PMID:10556294), rat (PMID: 9177781), and human (PMID: 11441066, 10780662, 20052759). The short alternative amino-terminal sequences encoded by the different first exons direct the targeting of the various isoforms to distinct subcellular locations (PMID: 14559777). As the expression of specific plectin isoforms was found to be dependent on cell type (tissue) and stage of development (PMID: 10556294, 12542521, 17389230) it appears that each cell type (tissue) contains a unique set (proportion and composition) of plectin isoforms, as if custom-made for specific requirements of the particular cells. Concordantly, individual isoforms were found to carry out distinct and specific functions (PMID: 14559777, 12542521, 18541706). In 1996, a number of groups reported that patients suffering from epidermolysis bullosa simplex with muscular dystrophy (EBS-MD) lacked plectin expression in skin and muscle tissues due to defects in the plectin gene (PMID: 8698233, 8941634, 8636409, 8894687, 8696340). Two other subtypes of plectin-related EBS have been described: EBS-pyloric atresia (PA) and EBS-Ogna. For reviews of plectin-related diseases see PMID: 15810881, 19945614. Mutations in the plectin gene related to human diseases should be named based on the position in NM_000445 (variant 1, isoform 1c), unless the mutation is located within one of the other alternative first exons, in which case the position in the respective Reference Sequence should be used. [provided by RefSeq, Aug 2011]
PLEC Gene-Disease associations (from GenCC):
  • epidermolysis bullosa simplex
    Inheritance: AD Classification: STRONG Submitted by: G2P
  • epidermolysis bullosa simplex 5A, Ogna type
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia, Genomics England PanelApp
  • autosomal recessive limb-girdle muscular dystrophy type 2Q
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
  • congenital myasthenic syndrome
    Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
  • epidermolysis bullosa simplex 5B, with muscular dystrophy
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Orphanet, Genomics England PanelApp
  • epidermolysis bullosa simplex 5C, with pyloric atresia
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
  • epidermolysis bullosa simplex with nail dystrophy
    Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia
  • autosomal recessive limb-girdle muscular dystrophy
    Inheritance: AR Classification: MODERATE Submitted by: ClinGen
  • aplasia cutis congenita
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • cholestasis
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21468881).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLECNM_201384.3 linkc.3016C>T p.Arg1006Cys missense_variant Exon 24 of 32 ENST00000345136.8 NP_958786.1
PLECNM_201378.4 linkc.2974C>T p.Arg992Cys missense_variant Exon 24 of 32 ENST00000356346.7 NP_958780.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLECENST00000345136.8 linkc.3016C>T p.Arg1006Cys missense_variant Exon 24 of 32 1 NM_201384.3 ENSP00000344848.3
PLECENST00000356346.7 linkc.2974C>T p.Arg992Cys missense_variant Exon 24 of 32 1 NM_201378.4 ENSP00000348702.3

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000939
AC:
21
AN:
223648
AF XY:
0.0000812
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000549
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000594
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000379
AC:
55
AN:
1450910
Hom.:
0
Cov.:
41
AF XY:
0.0000361
AC XY:
26
AN XY:
721126
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33320
American (AMR)
AF:
0.000481
AC:
21
AN:
43654
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25918
East Asian (EAS)
AF:
0.000229
AC:
9
AN:
39290
South Asian (SAS)
AF:
0.0000939
AC:
8
AN:
85230
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50152
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5308
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1108176
Other (OTH)
AF:
0.0000501
AC:
3
AN:
59862
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152358
Hom.:
0
Cov.:
33
AF XY:
0.0000805
AC XY:
6
AN XY:
74502
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41590
American (AMR)
AF:
0.000327
AC:
5
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5190
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000680
ExAC
AF:
0.0000419
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Sep 16, 2021
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.3097C>T (p.R1033C) alteration is located in exon 25 (coding exon 24) of the PLEC gene. This alteration results from a C to T substitution at nucleotide position 3097, causing the arginine (R) at amino acid position 1033 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
Sep 27, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 1033 of the PLEC protein (p.Arg1033Cys). This variant is present in population databases (rs200484638, gnomAD 0.05%). 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: 566336). 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. -

not provided Uncertain:1
Feb 27, 2023
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.10
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.45
.;.;.;.;T;.;.;.;.;.
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.55
D
MetaRNN
Benign
0.21
T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.056
D
MutationAssessor
Benign
1.6
.;.;.;.;L;.;.;.;.;.
PhyloP100
2.2
PrimateAI
Pathogenic
0.88
D
PROVEAN
Pathogenic
-5.1
D;D;D;D;D;D;D;D;.;D
REVEL
Uncertain
0.50
Sift
Uncertain
0.0010
D;D;D;D;D;D;D;D;.;D
Sift4G
Pathogenic
0.0010
D;D;D;D;D;D;D;D;.;D
Polyphen
1.0
D;D;D;D;D;D;D;D;.;.
Vest4
0.63
MVP
0.66
ClinPred
0.41
T
GERP RS
5.0
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.1
Varity_R
0.21
gMVP
0.45
Mutation Taster
=60/40
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs200484638; hg19: chr8-145003647; COSMIC: COSV59661790; COSMIC: COSV59661790; API