Genetic Variant PPL:p.Arg1639Ser (chr16-4883740-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is . The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_002705.5(PPL):c.4915C>A(p.Arg1639Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,680 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1639C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PPL
NM_002705.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.08

Publications

0 publications found

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:

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new If you want to explore the variant's impact on the transcript NM_002705.5, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.36592165).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002705.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PPL	NM_002705.5	MANE Select	c.4915C>A	p.Arg1639Ser	missense	Exon 22 of 22	NP_002696.4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PPL	ENST00000345988.7	TSL:1 MANE Select	c.4915C>A	p.Arg1639Ser	missense	Exon 22 of 22	ENSP00000340510.2	O60437
PPL	ENST00000950847.1		c.4963C>A	p.Arg1655Ser	missense	Exon 22 of 22	ENSP00000620906.1
PPL	ENST00000923224.1		c.4912C>A	p.Arg1638Ser	missense	Exon 22 of 22	ENSP00000593283.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461680

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727132

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53246

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111988

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Uncertain

0.047

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.77

M_CAP

Benign

0.025

MetaRNN

Benign

0.37

MetaSVM

Benign

-0.71

MutationAssessor

Uncertain

2.4

PhyloP100

7.1

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.7

REVEL

Benign

0.18

Sift

Benign

0.069

Sift4G

Benign

0.21

Varity_R

0.28

gMVP

0.50

Mutation Taster

=77/23

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over