16-4883416-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_002705.5(PPL):c.5239G>A(p.Glu1747Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000403 in 1,614,060 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 1 hom. )

Consequence

PPL
NM_002705.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.80

Variant links:

Genes affected

PPL (HGNC:9273): (periplakin) The protein encoded by this gene is a component of desmosomes and of the epidermal cornified envelope in keratinocytes. The N-terminal domain of this protein interacts with the plasma membrane and its C-terminus interacts with intermediate filaments. Through its rod domain, this protein forms complexes with envoplakin. This protein may serve as a link between the cornified envelope and desmosomes as well as intermediate filaments. AKT1/PKB, a protein kinase mediating a variety of cell growth and survival signaling processes, is reported to interact with this protein, suggesting a possible role for this protein as a localization signal in AKT1-mediated signaling. [provided by RefSeq, Jul 2008]

PPL links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.31648877).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
PPL	NM_002705.5 linkuse as main transcript	c.5239G>A	p.Glu1747Lys	missense_variant	22/22	ENST00000345988.7
PPL	XM_017023374.3 linkuse as main transcript	c.5326G>A	p.Glu1776Lys	missense_variant	22/22
PPL	XM_017023375.3 linkuse as main transcript	c.5287G>A	p.Glu1763Lys	missense_variant	22/22
PPL	XM_006720902.5 linkuse as main transcript	c.5278G>A	p.Glu1760Lys	missense_variant	22/22

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PPL	ENST00000345988.7 linkuse as main transcript	c.5239G>A	p.Glu1747Lys	missense_variant	22/22	1	NM_002705.5	P3
PPL	ENST00000590782.6 linkuse as main transcript	c.5233G>A	p.Glu1745Lys	missense_variant	22/22	5		A1

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000531

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000517

AC:

AN:

251376

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135876

show subpopulations

Gnomad AFR exome

AF:

0.000801

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000294

AC:

AN:

1461854

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.000806

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000378

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000145

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.000531

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000354

Hom.:

Bravo

AF:

0.000200

ESP6500AA

AF:

0.000683

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2024

The c.5239G>A (p.E1747K) alteration is located in exon 22 (coding exon 22) of the PPL gene. This alteration results from a G to A substitution at nucleotide position 5239, causing the glutamic acid (E) at amino acid position 1747 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.77

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Uncertain

-0.040

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Pathogenic

0.85

D;.

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.93

D;D

M_CAP

Benign

0.034

MetaRNN

Benign

0.32

T;T

MetaSVM

Benign

-0.84

MutationAssessor

Uncertain

2.4

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.1

D;.

REVEL

Benign

0.27

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.014

D;D

Polyphen

0.64

P;.

Vest4

0.76

MVP

0.69

MPC

0.16

ClinPred

0.36

GERP RS

4.9

Varity_R

0.92

gMVP

0.78

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