NM_201384.3:c.4635G>A

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_201384.3(PLEC):​c.4635G>A​(p.Ala1545Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00131 in 1,573,334 control chromosomes in the GnomAD database, including 30 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0065 ( 13 hom., cov: 36)
Exomes 𝑓: 0.00075 ( 17 hom. )

Consequence

PLEC
NM_201384.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -7.35

Publications

1 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 These names were superseded by plectin.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: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 8-143925294-C-T is Benign according to our data. Variant chr8-143925294-C-T is described in ClinVar as Benign. ClinVar VariationId is 129950.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-7.35 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00651 (991/152332) while in subpopulation AFR AF = 0.0228 (948/41578). AF 95% confidence interval is 0.0216. There are 13 homozygotes in GnomAd4. There are 473 alleles in the male GnomAd4 subpopulation. Median coverage is 36. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 13 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLECNM_201384.3 linkc.4635G>A p.Ala1545Ala synonymous_variant Exon 31 of 32 ENST00000345136.8 NP_958786.1 Q15149-4
PLECNM_201378.4 linkc.4593G>A p.Ala1531Ala synonymous_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.4635G>A p.Ala1545Ala synonymous_variant Exon 31 of 32 1 NM_201384.3 ENSP00000344848.3 Q15149-4
PLECENST00000356346.7 linkc.4593G>A p.Ala1531Ala synonymous_variant Exon 31 of 32 1 NM_201378.4 ENSP00000348702.3 Q15149-9

Frequencies

GnomAD3 genomes
AF:
0.00652
AC:
992
AN:
152222
Hom.:
13
Cov.:
36
show subpopulations
Gnomad AFR
AF:
0.0229
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00183
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00621
GnomAD2 exomes
AF:
0.00176
AC:
320
AN:
181782
AF XY:
0.00128
show subpopulations
Gnomad AFR exome
AF:
0.0281
Gnomad AMR exome
AF:
0.000964
Gnomad ASJ exome
AF:
0.000114
Gnomad EAS exome
AF:
0.000203
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000128
Gnomad OTH exome
AF:
0.000208
GnomAD4 exome
AF:
0.000750
AC:
1066
AN:
1421002
Hom.:
17
Cov.:
75
AF XY:
0.000611
AC XY:
431
AN XY:
705356
show subpopulations
African (AFR)
AF:
0.0286
AC:
934
AN:
32628
American (AMR)
AF:
0.000850
AC:
36
AN:
42346
Ashkenazi Jewish (ASJ)
AF:
0.0000391
AC:
1
AN:
25608
East Asian (EAS)
AF:
0.0000791
AC:
3
AN:
37940
South Asian (SAS)
AF:
0.0000723
AC:
6
AN:
83040
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
35554
Middle Eastern (MID)
AF:
0.000436
AC:
2
AN:
4592
European-Non Finnish (NFE)
AF:
0.0000164
AC:
18
AN:
1100268
Other (OTH)
AF:
0.00112
AC:
66
AN:
59026
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
68
136
205
273
341
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.00651
AC:
991
AN:
152332
Hom.:
13
Cov.:
36
AF XY:
0.00635
AC XY:
473
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.0228
AC:
948
AN:
41578
American (AMR)
AF:
0.00183
AC:
28
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68016
Other (OTH)
AF:
0.00614
AC:
13
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
48
96
143
191
239
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00423
Hom.:
1
Bravo
AF:
0.00785
Asia WGS
AF:
0.00145
AC:
5
AN:
3470

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
Oct 31, 2024
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
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. -

Feb 09, 2016
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:3
Aug 29, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

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
Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

PLEC-related disorder Benign:1
Mar 29, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
0.24
DANN
Benign
0.92
PhyloP100
-7.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Mutation Taster
=89/11
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: rs76426116; hg19: chr8-144999462; API