Genetic Variant PPP6R1:p.Gly802Arg (chr19-55231465-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_014931.4(PPP6R1):c.2404G>A(p.Gly802Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000665 in 1,608,138 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000067 ( 0 hom. )

Consequence

PPP6R1
NM_014931.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.222

Publications

1 publications found

Variant links:

Genes affected

PPP6R1 (HGNC:29195): (protein phosphatase 6 regulatory subunit 1) Protein phosphatase regulatory subunits, such as SAPS1, modulate the activity of protein phosphatase catalytic subunits by restricting substrate specificity, recruiting substrates, and determining the intracellular localization of the holoenzyme. SAPS1 is a regulatory subunit for the protein phosphatase-6 catalytic subunit (PPP6C; MIM 612725) (Stefansson and Brautigan, 2006 [PubMed 16769727]).[supplied by OMIM, Nov 2010]

PPP6R1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.04532197).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PPP6R1	NM_014931.4 link	c.2404G>A	p.Gly802Arg	missense_variant	Exon 21 of 24	ENST00000412770.7	NP_055746.3	Q9UPN7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PPP6R1	ENST00000412770.7 link	c.2404G>A	p.Gly802Arg	missense_variant	Exon 21 of 24	1	NM_014931.4	ENSP00000414202.1	Q9UPN7
PPP6R1	ENST00000587283.5 link	c.2404G>A	p.Gly802Arg	missense_variant	Exon 20 of 23	1		ENSP00000467521.1	Q9UPN7
PPP6R1	ENST00000587457.1 link	n.1399G>A		non_coding_transcript_exon_variant	Exon 4 of 7	2

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152072

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000130

AC:

AN:

237626

AF XY:

0.000193

show subpopulations

Gnomad AFR exome

AF:

0.0000722

Gnomad AMR exome

AF:

0.0000299

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000147

Gnomad NFE exome

AF:

0.000232

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000673

AC:

AN:

1456066

Hom.:

Cov.:

AF XY:

0.0000746

AC XY:

AN XY:

723714

show subpopulations

African (AFR)

AF:

0.0000300

AC:

AN:

33370

American (AMR)

AF:

0.00

AC:

AN:

43968

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25920

East Asian (EAS)

AF:

0.00

AC:

AN:

39498

South Asian (SAS)

AF:

0.0000708

AC:

AN:

84792

European-Finnish (FIN)

AF:

0.000378

AC:

AN:

52858

Middle Eastern (MID)

AF:

0.000527

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.0000532

AC:

AN:

1109808

Other (OTH)

AF:

0.000150

AC:

AN:

60158

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

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

AF:

0.0000592

AC:

AN:

152072

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74302

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41400

American (AMR)

AF:

0.00

AC:

AN:

15264

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.000207

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.000189

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

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:

0.0000982

Hom.:

Bravo

AF:

0.0000756

ExAC

AF:

0.000174

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 02, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2404G>A (p.G802R) alteration is located in exon 21 (coding exon 20) of the PPP6R1 gene. This alteration results from a G to A substitution at nucleotide position 2404, causing the glycine (G) at amino acid position 802 to be replaced by an arginine (R). 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

Benign

0.069

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.57

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.023

T;T

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.18

LIST_S2

Benign

0.67

.;T

M_CAP

Benign

0.016

MetaRNN

Benign

0.045

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;L

PhyloP100

0.22

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.96

N;.

REVEL

Benign

0.018

Sift

Uncertain

0.0060

D;.

Sift4G

Benign

0.085

T;T

Polyphen

0.019

B;B

Vest4

0.25

MutPred

0.31

Gain of solvent accessibility (P = 0.0097);Gain of solvent accessibility (P = 0.0097);

MVP

0.043

MPC

0.064

ClinPred

0.025

GERP RS

2.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.041

gMVP

0.21

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over