dbSNP rs149932255: PLEC:p.Ser987Ser (chr8-143929534-G-A) – ACMG Classification: Benign (-21 pts)

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.2961C>T(p.Ser987Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00746 in 1,612,624 control chromosomes in the GnomAD database, including 71 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0061 ( 2 hom., cov: 33)

Exomes 𝑓: 0.0076 ( 69 hom. )

Consequence

PLEC
NM_201384.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: -9.61

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 These names were superseded by plectin.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):

PLEC-related muscular dystrophy-epidermolysis bullosa simplex spectrum disorder
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
epidermolysis bullosa simplex
Inheritance: AD Classification: STRONG Submitted by: G2P
epidermolysis bullosa simplex 5A, Ogna type
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)
autosomal recessive limb-girdle muscular dystrophy type 2Q
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, 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: Genomics England PanelApp, PanelApp Australia, Orphanet
epidermolysis bullosa simplex 5C, with pyloric atresia
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
epidermolysis bullosa simplex with nail dystrophy
Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia
aplasia cutis congenita
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
cholestasis
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

PLEC links:

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=-0.86).

BP6

Variant 8-143929534-G-A is Benign according to our data. Variant chr8-143929534-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 195856.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-9.61 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00607 (925/152302) while in subpopulation NFE AF = 0.00887 (603/68004). AF 95% confidence interval is 0.00828. There are 2 homozygotes in GnomAd4. There are 428 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_201384.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PLEC	NM_201384.3	MANE Select	c.2961C>T	p.Ser987Ser	synonymous	Exon 24 of 32	NP_958786.1	Q15149-4
PLEC	NM_201378.4	MANE Plus Clinical	c.2919C>T	p.Ser973Ser	synonymous	Exon 24 of 32	NP_958780.1	Q15149-9
PLEC	NM_201380.4		c.3372C>T	p.Ser1124Ser	synonymous	Exon 24 of 32	NP_958782.1	Q15149-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PLEC	ENST00000345136.8	TSL:1 MANE Select	c.2961C>T	p.Ser987Ser	synonymous	Exon 24 of 32	ENSP00000344848.3	Q15149-4
PLEC	ENST00000356346.7	TSL:1 MANE Plus Clinical	c.2919C>T	p.Ser973Ser	synonymous	Exon 24 of 32	ENSP00000348702.3	Q15149-9
PLEC	ENST00000322810.8	TSL:1	c.3372C>T	p.Ser1124Ser	synonymous	Exon 24 of 32	ENSP00000323856.4	Q15149-1

Frequencies

GnomAD3 genomes

AF:

0.00607

AC:

924

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00207

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00602

Gnomad ASJ

AF:

0.0124

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00496

Gnomad FIN

AF:

0.00489

Gnomad MID

AF:

0.0316

Gnomad NFE

AF:

0.00887

Gnomad OTH

AF:

0.00623

GnomAD2 exomes

AF:

0.00702

AC:

1699

AN:

242164

AF XY:

0.00710

show subpopulations

Gnomad AFR exome

AF:

0.00173

Gnomad AMR exome

AF:

0.00428

Gnomad ASJ exome

AF:

0.0154

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00640

Gnomad NFE exome

AF:

0.00971

Gnomad OTH exome

AF:

0.00797

GnomAD4 exome

AF:

0.00760

AC:

11100

AN:

1460322

Hom.:

Cov.:

AF XY:

0.00760

AC XY:

5521

AN XY:

726454

show subpopulations

African (AFR)

AF:

0.00114

AC:

AN:

33476

American (AMR)

AF:

0.00443

AC:

198

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.0144

AC:

375

AN:

26124

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39692

South Asian (SAS)

AF:

0.00541

AC:

467

AN:

86256

European-Finnish (FIN)

AF:

0.00699

AC:

364

AN:

52050

Middle Eastern (MID)

AF:

0.00626

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.00828

AC:

9206

AN:

1111892

Other (OTH)

AF:

0.00687

AC:

415

AN:

60364

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

736

1472

2208

2944

3680

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

334

668

1002

1336

1670

<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:

0.00607

AC:

925

AN:

152302

Hom.:

Cov.:

AF XY:

0.00575

AC XY:

428

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.00207

AC:

AN:

41570

American (AMR)

AF:

0.00601

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.0124

AC:

AN:

3468

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.00497

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00489

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.0374

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00887

AC:

603

AN:

68004

Other (OTH)

AF:

0.00616

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

103

154

206

257

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00711

Hom.:

Bravo

AF:

0.00591

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.00823

EpiControl

AF:

0.00925

ClinVar

ClinVar submissions as Germline

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (4)

not specified (3)

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 (1)

PLEC-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.86

CADD

Benign

0.081

(source)

DANN

Benign

0.87

PhyloP100

-9.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=86/14

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over