Genetic Variant PPL:p.Arg1594Pro (chr16-4883874-C-G) – 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.4781G>C(p.Arg1594Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,674 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. R1594Q) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PPL
NM_002705.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.565

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 (REVEL=0.242).

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.4781G>C	p.Arg1594Pro	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.4781G>C	p.Arg1594Pro	missense	Exon 22 of 22	ENSP00000340510.2	O60437
PPL	ENST00000950847.1		c.4829G>C	p.Arg1610Pro	missense	Exon 22 of 22	ENSP00000620906.1
PPL	ENST00000923224.1		c.4778G>C	p.Arg1593Pro	missense	Exon 22 of 22	ENSP00000593283.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461674

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727144

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44720

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:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53214

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112004

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.050

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Uncertain

0.68

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.72

LIST_S2

Benign

0.76

M_CAP

Benign

0.029

MetaRNN

Benign

0.30

MetaSVM

Benign

-0.80

MutationAssessor

Uncertain

2.5

PhyloP100

0.56

PrimateAI

Benign

0.22

PROVEAN

Uncertain

-3.1

REVEL

Benign

0.24

Sift

Uncertain

0.014

Sift4G

Uncertain

0.031

Varity_R

0.61

gMVP

0.62

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over