8-143921861-A-G

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_201384.3(PLEC):c.7960T>C(p.Ser2654Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.432 in 1,602,450 control chromosomes in the GnomAD database, including 158,379 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.52 ( 23565 hom., cov: 35)

Exomes 𝑓: 0.42 ( 134814 hom. )

Consequence

PLEC
NM_201384.3 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: 0.620

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 These names were superseded by plectin.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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=6.375856E-7).

BP6

Variant 8-143921861-A-G is Benign according to our data. Variant chr8-143921861-A-G is described in ClinVar as [Benign]. Clinvar id is 93083.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-143921861-A-G is described in Lovd as [Benign].

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.818 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLEC	NM_201384.3 link	c.7960T>C	p.Ser2654Pro	missense_variant	Exon 32 of 32	ENST00000345136.8	NP_958786.1	Q15149-4
PLEC	NM_201378.4 link	c.7918T>C	p.Ser2640Pro	missense_variant	Exon 32 of 32	ENST00000356346.7	NP_958780.1	Q15149-9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLEC	ENST00000345136.8 link	c.7960T>C	p.Ser2654Pro	missense_variant	Exon 32 of 32	1	NM_201384.3	ENSP00000344848.3		Q15149-4
PLEC	ENST00000356346.7 link	c.7918T>C	p.Ser2640Pro	missense_variant	Exon 32 of 32	1	NM_201378.4	ENSP00000348702.3		Q15149-9

Frequencies

GnomAD3 genomes

AF:

0.518

AC:

78817

AN:

152072

Hom.:

23529

Cov.:

show subpopulations

Gnomad AFR

AF:

0.825

Gnomad AMI

AF:

0.432

Gnomad AMR

AF:

0.395

Gnomad ASJ

AF:

0.464

Gnomad EAS

AF:

0.153

Gnomad SAS

AF:

0.357

Gnomad FIN

AF:

0.398

Gnomad MID

AF:

0.427

Gnomad NFE

AF:

0.422

Gnomad OTH

AF:

0.491

GnomAD3 exomes

AF:

0.398

AC:

91147

AN:

229116

Hom.:

20358

AF XY:

0.397

AC XY:

50380

AN XY:

126848

show subpopulations

Gnomad AFR exome

AF:

0.834

Gnomad AMR exome

AF:

0.282

Gnomad ASJ exome

AF:

0.472

Gnomad EAS exome

AF:

0.144

Gnomad SAS exome

AF:

0.359

Gnomad FIN exome

AF:

0.407

Gnomad NFE exome

AF:

0.423

Gnomad OTH exome

AF:

0.415

GnomAD4 exome

AF:

0.423

AC:

612830

AN:

1450260

Hom.:

134814

Cov.:

AF XY:

0.419

AC XY:

302622

AN XY:

721952

show subpopulations

Gnomad4 AFR exome

AF:

0.842

Gnomad4 AMR exome

AF:

0.298

Gnomad4 ASJ exome

AF:

0.470

Gnomad4 EAS exome

AF:

0.175

Gnomad4 SAS exome

AF:

0.363

Gnomad4 FIN exome

AF:

0.398

Gnomad4 NFE exome

AF:

0.427

Gnomad4 OTH exome

AF:

0.437

GnomAD4 genome

AF:

0.518

AC:

78890

AN:

152190

Hom.:

23565

Cov.:

AF XY:

0.510

AC XY:

37975

AN XY:

74398

show subpopulations

Gnomad4 AFR

AF:

0.825

Gnomad4 AMR

AF:

0.394

Gnomad4 ASJ

AF:

0.464

Gnomad4 EAS

AF:

0.153

Gnomad4 SAS

AF:

0.355

Gnomad4 FIN

AF:

0.398

Gnomad4 NFE

AF:

0.422

Gnomad4 OTH

AF:

0.487

Alfa

AF:

0.452

Hom.:

5744

Bravo

AF:

0.528

TwinsUK

AF:

0.431

AC:

1598

ALSPAC

AF:

0.432

AC:

1665

ESP6500AA

AF:

0.826

AC:

3507

ESP6500EA

AF:

0.431

AC:

3635

ExAC

AF:

0.405

AC:

48551

Asia WGS

AF:

0.272

AC:

948

AN:

3478

EpiCase

AF:

0.435

EpiControl

AF:

0.443

ClinVar

Significance: Benign

Submissions summary: Benign:12

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Apr 18, 2013

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 18, 2016

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Jan 13, 2015

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

p.Ser2791Pro in exon 32 of PLEC: This variant is not expected to have clinical s ignificance because it has been identified in 43.1% (3635/8436) of European Amer ican chromosomes from a broad population by the NHLBI Exome Sequencing Project ( http://evs.gs.washington.edu/EVS; dbSNP rs7833924). -

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Epidermolysis bullosa simplex with nail dystrophy

Benign:1

Oct 25, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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

Benign:1

Feb 04, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Epidermolysis bullosa simplex 5C, with pyloric atresia

Benign:1

Oct 25, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Epidermolysis bullosa simplex 5B, with muscular dystrophy

Benign:1

Oct 25, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Autosomal recessive limb-girdle muscular dystrophy type 2Q

Benign:1

Oct 25, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Epidermolysis bullosa simplex, Ogna type

Benign:1

Oct 25, 2021

Genome-Nilou Lab

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.042

BayesDel_addAF

Benign

-0.66

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Benign

0.85

DEOGEN2

Benign

0.065

.;.;.;.;T;.;.;.;.;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.074

LIST_S2

Benign

0.57

T;T;T;T;T;T;T;T;T;T

MetaRNN

Benign

6.4e-7

T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

-0.38

.;.;.;.;N;.;.;.;.;.

PrimateAI

Benign

0.42

PROVEAN

Benign

1.6

N;N;N;N;N;N;N;N;.;N

REVEL

Benign

0.13

Sift

Benign

1.0

T;T;T;T;T;T;T;T;.;T

Sift4G

Benign

0.98

T;T;T;T;T;T;T;T;.;T

Polyphen

0.0

B;B;B;B;B;B;B;B;.;.

Vest4

0.11

ClinPred

0.0010

GERP RS

1.3

Varity_R

0.24

gMVP

0.71

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over