Genetic Variant PPP4R1:p.Arg718Arg (chr18-9557257-C-T) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP7

The NM_001042388.3(PPP4R1):c.2154G>A(p.Arg718Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000199 in 1,609,828 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.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

PPP4R1
NM_001042388.3 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.34

Publications

0 publications found

Variant links:

Genes affected

PPP4R1 (HGNC:9320): (protein phosphatase 4 regulatory subunit 1) This gene encodes one of several alternate regulatory subunits of serine/threonine protein phosphatase 4 (PP4). The protein features multiple HEAT repeats. This protein forms a complex with PP4RC. This complex may have a distinct role from other PP4 complexes, including regulation of HDAC3 (Zhang et al., PMID: 15805470). There is also a transcribed pseudogene on chromosome 20. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2012]

PPP4R1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.37).

BP7

Synonymous conserved (PhyloP=1.34 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001042388.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PPP4R1	NM_001042388.3	MANE Select	c.2154G>A	p.Arg718Arg	synonymous	Exon 15 of 20	NP_001035847.1	Q8TF05-1
PPP4R1	NM_005134.4		c.2103G>A	p.Arg701Arg	synonymous	Exon 15 of 20	NP_005125.1	Q8TF05-2
PPP4R1	NM_001382562.1		c.1887G>A	p.Arg629Arg	synonymous	Exon 14 of 19	NP_001369491.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PPP4R1	ENST00000400556.8	TSL:1 MANE Select	c.2154G>A	p.Arg718Arg	synonymous	Exon 15 of 20	ENSP00000383402.3	Q8TF05-1
PPP4R1	ENST00000400555.7	TSL:1	c.2103G>A	p.Arg701Arg	synonymous	Exon 15 of 20	ENSP00000383401.3	Q8TF05-2
PPP4R1	ENST00000886291.1		c.2154G>A	p.Arg718Arg	synonymous	Exon 15 of 20	ENSP00000556350.1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000245

AC:

AN:

244956

AF XY:

0.0000452

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000301

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000268

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1457698

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

724976

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33260

American (AMR)

AF:

0.00

AC:

AN:

43606

Ashkenazi Jewish (ASJ)

AF:

0.000230

AC:

AN:

26040

East Asian (EAS)

AF:

0.00

AC:

AN:

39500

South Asian (SAS)

AF:

0.00

AC:

AN:

85054

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53388

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.0000180

AC:

AN:

1110834

Other (OTH)

AF:

0.0000166

AC:

AN:

60266

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

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:

0.0000329

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74308

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41430

American (AMR)

AF:

0.00

AC:

AN:

15264

Ashkenazi Jewish (ASJ)

AF:

0.000576

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

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:

0.0000761

Hom.:

Bravo

AF:

0.0000227

EpiCase

AF:

0.00

EpiControl

AF:

0.000179

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.37

CADD

Benign

8.4

(source)

DANN

Benign

0.77

PhyloP100

1.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over