rs111227648

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.12642C>T​(p.Ile4214Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00265 in 1,612,364 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. I4214I) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0027 ( 7 hom. )

Consequence

PLEC
NM_201384.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -0.981

Publications

4 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 These names were superseded by plectin.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=-0.51).
BP6
Variant 8-143917179-G-A is Benign according to our data. Variant chr8-143917179-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 196852.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.981 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00179 (273/152342) while in subpopulation NFE AF = 0.00319 (217/68022). AF 95% confidence interval is 0.00284. There are 0 homozygotes in GnomAd4. There are 132 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 7 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PLECNM_201384.3 linkc.12642C>T p.Ile4214Ile synonymous_variant Exon 32 of 32 ENST00000345136.8 NP_958786.1 Q15149-4
PLECNM_201378.4 linkc.12600C>T p.Ile4200Ile synonymous_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
PLECENST00000345136.8 linkc.12642C>T p.Ile4214Ile synonymous_variant Exon 32 of 32 1 NM_201384.3 ENSP00000344848.3 Q15149-4
PLECENST00000356346.7 linkc.12600C>T p.Ile4200Ile synonymous_variant Exon 32 of 32 1 NM_201378.4 ENSP00000348702.3 Q15149-9

Frequencies

GnomAD3 genomes
AF:
0.00179
AC:
273
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000506
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00169
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00319
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.00176
AC:
437
AN:
248940
AF XY:
0.00182
show subpopulations
Gnomad AFR exome
AF:
0.000389
Gnomad AMR exome
AF:
0.000898
Gnomad ASJ exome
AF:
0.000299
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00186
Gnomad NFE exome
AF:
0.00304
Gnomad OTH exome
AF:
0.00182
GnomAD4 exome
AF:
0.00274
AC:
4001
AN:
1460022
Hom.:
7
Cov.:
60
AF XY:
0.00265
AC XY:
1927
AN XY:
726064
show subpopulations
African (AFR)
AF:
0.000628
AC:
21
AN:
33466
American (AMR)
AF:
0.000895
AC:
40
AN:
44704
Ashkenazi Jewish (ASJ)
AF:
0.000230
AC:
6
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39644
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86246
European-Finnish (FIN)
AF:
0.00232
AC:
122
AN:
52588
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00332
AC:
3686
AN:
1111152
Other (OTH)
AF:
0.00202
AC:
122
AN:
60318
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
256
511
767
1022
1278
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
140
280
420
560
700
<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:
0.00179
AC:
273
AN:
152342
Hom.:
0
Cov.:
32
AF XY:
0.00177
AC XY:
132
AN XY:
74506
show subpopulations
African (AFR)
AF:
0.000505
AC:
21
AN:
41584
American (AMR)
AF:
0.000850
AC:
13
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00169
AC:
18
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00319
AC:
217
AN:
68022
Other (OTH)
AF:
0.00142
AC:
3
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
15
29
44
58
73
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
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:
0.00241
Hom.:
0
Bravo
AF:
0.00176
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00256
EpiControl
AF:
0.00207

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:6
Feb 27, 2019
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:Likely benign
Review Status:no assertion criteria provided
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

- -

Apr 06, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jul 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PLEC: BP4, BP7 -

not specified Benign:1
Dec 21, 2016
Eurofins Ntd Llc (ga)
Significance:Likely 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 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
3.3
DANN
Benign
0.79
PhyloP100
-0.98
Mutation Taster
=100/0
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: rs111227648; hg19: chr8-144991347; COSMIC: COSV59618815; COSMIC: COSV59618815; API