Genetic Variant EPPK1:p.Gly2252Gly (chr8-143866498-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_031308.4(EPPK1):c.6756C>T(p.Gly2252Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000284 in 1,548,608 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 25)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

EPPK1
NM_031308.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.793

Variant links:

Genes affected

EPPK1 (HGNC:15577): (epiplakin 1) The protein encoded by this gene belongs to the plakin family of proteins, which play a role in the organization of cytoskeletal architecture. This family member is composed of several highly homologous plakin repeats. It may function to maintain the integrity of keratin intermediate filament networks in epithelial cells. Studies of the orthologous mouse protein suggest that it accelerates keratinocyte migration during wound healing. [provided by RefSeq, Oct 2013]

EPPK1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.62).

BP6

Variant 8-143866498-G-A is Benign according to our data. Variant chr8-143866498-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3035127.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.793 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPPK1	NM_031308.4 link	c.6756C>T	p.Gly2252Gly	synonymous_variant	Exon 2 of 2	ENST00000615648.2	NP_112598.3	P58107

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPPK1	ENST00000615648.2 link	c.6756C>T	p.Gly2252Gly	synonymous_variant	Exon 2 of 2	5	NM_031308.4	ENSP00000484472.1		P58107
EPPK1	ENST00000568225.2 link	c.6681C>T	p.Gly2227Gly	synonymous_variant	Exon 1 of 1	6		ENSP00000456124.2		A0A075B730

Frequencies

GnomAD3 genomes

AF:

0.0000335

AC:

AN:

149414

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000247

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000218

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000446

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000144

AC:

AN:

243192

Hom.:

AF XY:

0.000151

AC XY:

AN XY:

132342

show subpopulations

Gnomad AFR exome

AF:

0.0000659

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000315

Gnomad EAS exome

AF:

0.0000563

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000236

Gnomad NFE exome

AF:

0.000220

Gnomad OTH exome

AF:

0.000170

GnomAD4 exome

AF:

0.0000279

AC:

AN:

1399194

Hom.:

Cov.:

AF XY:

0.0000231

AC XY:

AN XY:

691898

show subpopulations

Gnomad4 AFR exome

AF:

0.0000315

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000131

Gnomad4 EAS exome

AF:

0.0000509

Gnomad4 SAS exome

AF:

0.0000128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000295

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000335

AC:

AN:

149414

Hom.:

Cov.:

AF XY:

0.0000549

AC XY:

AN XY:

72840

show subpopulations

Gnomad4 AFR

AF:

0.0000247

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000218

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000446

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000843

Hom.:

Bravo

AF:

0.0000491

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

EPPK1-related disorder

Benign:1

Apr 14, 2021

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is classified as likely 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

-0.62

CADD

Benign

DANN

Benign

0.93

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