22-21923433-C-T

Position:

chr22-21923433-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_014634.4(PPM1F):c.1024G>A(p.Asp342Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,460,264 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

PPM1F
NM_014634.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.62

Variant links:

Genes affected

PPM1F (HGNC:19388): (protein phosphatase, Mg2+/Mn2+ dependent 1F) The protein encoded by this gene is a member of the PP2C family of Ser/Thr protein phosphatases. PP2C family members are known to be negative regulators of cell stress response pathways. This phosphatase can interact with Rho guanine nucleotide exchange factors (PIX), and thus block the effects of p21-activated kinase 1 (PAK), a protein kinase mediating biological effects downstream of Rho GTPases. Calcium/calmodulin-dependent protein kinase II gamma (CAMK2G/CAMK-II) is found to be one of the substrates of this phosphatase. The overexpression of this phosphatase or CAMK2G has been shown to mediate caspase-dependent apoptosis. An alternatively spliced transcript variant has been identified, but its full-length nature has not been determined. [provided by RefSeq, Jul 2008]

PPM1F links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.83

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PPM1F	NM_014634.4 linkuse as main transcript	c.1024G>A	p.Asp342Asn	missense_variant	8/8	ENST00000263212.10	NP_055449.1
PPM1F	NM_001410836.1 linkuse as main transcript	c.520G>A	p.Asp174Asn	missense_variant	7/7		NP_001397765.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PPM1F	ENST00000263212.10 linkuse as main transcript	c.1024G>A	p.Asp342Asn	missense_variant	8/8	1	NM_014634.4	ENSP00000263212	P1	P49593-1
PPM1F	ENST00000407142.5 linkuse as main transcript	c.520G>A	p.Asp174Asn	missense_variant	6/6	5		ENSP00000384930
PPM1F	ENST00000496143.5 linkuse as main transcript	n.236G>A		non_coding_transcript_exon_variant	3/3	4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

248130

Hom.:

AF XY:

0.0000223

AC XY:

AN XY:

134430

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

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:

0.0000180

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000548

AC:

AN:

1460264

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

726262

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000508

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 14, 2023

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 342 of the PPM1F protein (p.Asp342Asn). This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with PPM1F-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.37

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.35

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.26

T;.

Eigen

Pathogenic

0.78

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

T;T

M_CAP

Benign

0.032

MetaRNN

Pathogenic

0.83

D;D

MetaSVM

Benign

-0.74

MutationAssessor

Pathogenic

3.4

M;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-4.6

D;D

REVEL

Uncertain

0.41

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.0040

D;D

Polyphen

1.0

D;.

Vest4

0.85

MVP

0.76

MPC

1.2

ClinPred

0.98

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.85

gMVP

0.73

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