rs201278290

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_201384.3(PLEC):​c.5761C>T​(p.Arg1921Trp) 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 1,598,984 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 34)
Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

PLEC
NM_201384.3 missense

Scores

3
11
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 1.40
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 These names were superseded by plectin.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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.011765301).
BP6
Variant 8-143924168-G-A is Benign according to our data. Variant chr8-143924168-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 211914.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Benign=1, Uncertain_significance=3}.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000164 (25/152216) while in subpopulation EAS AF= 0.00446 (23/5158). AF 95% confidence interval is 0.00305. There are 0 homozygotes in gnomad4. There are 9 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLECNM_201384.3 linkc.5761C>T p.Arg1921Trp missense_variant Exon 31 of 32 ENST00000345136.8 NP_958786.1 Q15149-4
PLECNM_201378.4 linkc.5719C>T p.Arg1907Trp missense_variant Exon 31 of 32 ENST00000356346.7 NP_958780.1 Q15149-9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PLECENST00000345136.8 linkc.5761C>T p.Arg1921Trp missense_variant Exon 31 of 32 1 NM_201384.3 ENSP00000344848.3 Q15149-4
PLECENST00000356346.7 linkc.5719C>T p.Arg1907Trp missense_variant Exon 31 of 32 1 NM_201378.4 ENSP00000348702.3 Q15149-9

Frequencies

GnomAD3 genomes
AF:
0.000164
AC:
25
AN:
152098
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00445
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000412
AC:
95
AN:
230422
Hom.:
0
AF XY:
0.000330
AC XY:
42
AN XY:
127148
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00480
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.000159
Gnomad NFE exome
AF:
0.0000664
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000131
AC:
190
AN:
1446768
Hom.:
1
Cov.:
73
AF XY:
0.000122
AC XY:
88
AN XY:
720340
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00365
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000767
Gnomad4 NFE exome
AF:
0.0000270
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000164
AC:
25
AN:
152216
Hom.:
0
Cov.:
34
AF XY:
0.000121
AC XY:
9
AN XY:
74438
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00446
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000943
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000276
Hom.:
0
Bravo
AF:
0.000162
ExAC
AF:
0.000340
AC:
41
Asia WGS
AF:
0.000578
AC:
2
AN:
3474
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
Apr 01, 2017
CeGaT Center for Human Genetics Tuebingen
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

May 04, 2017
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Uncertain:1Benign:1
Dec 19, 2014
Genetic Services Laboratory, University of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 29, 2024
Athena Diagnostics
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
Dec 15, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.41
.;.;.;.;T;.;.;.;.
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D;D;D;D;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Benign
0.012
T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.62
D
MutationAssessor
Uncertain
2.2
.;.;.;.;M;.;.;.;.
PrimateAI
Uncertain
0.50
T
PROVEAN
Uncertain
-2.7
D;D;D;D;D;D;D;D;D
REVEL
Uncertain
0.53
Sift
Pathogenic
0.0
D;D;D;D;D;D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D;D;D;D;D;D
Polyphen
1.0
D;D;D;D;D;D;D;D;.
Vest4
0.61
MutPred
0.28
.;.;.;.;Loss of disorder (P = 0.0425);.;.;.;.;
MVP
0.79
ClinPred
0.15
T
GERP RS
4.3
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
3.7
Varity_R
0.12
gMVP
0.67

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.

Other links and lift over

dbSNP: rs201278290; hg19: chr8-144998336; API