Genetic Variant NM_014634.4:c.1037G>T (chr22-21923420-C-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014634.4(PPM1F):c.1037G>T(p.Arg346Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,066 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PPM1F
NM_014634.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.854

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 Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06289509).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PPM1F	NM_014634.4 link	c.1037G>T	p.Arg346Leu	missense_variant	Exon 8 of 8	ENST00000263212.10	NP_055449.1	P49593-1
PPM1F	NM_001410836.1 link	c.533G>T	p.Arg178Leu	missense_variant	Exon 7 of 7		NP_001397765.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PPM1F	ENST00000263212.10 link	c.1037G>T	p.Arg346Leu	missense_variant	Exon 8 of 8	1	NM_014634.4	ENSP00000263212.5	P49593-1
PPM1F	ENST00000407142.5 link	c.533G>T	p.Arg178Leu	missense_variant	Exon 6 of 6	5		ENSP00000384930.1	B5MCT7
PPM1F	ENST00000496143.5 link	n.249G>T		non_coding_transcript_exon_variant	Exon 3 of 3	4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461066

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726778

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.53

CADD

Benign

DANN

Benign

0.69

DEOGEN2

Benign

0.019

T;.

Eigen

Benign

-0.79

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.063

LIST_S2

Benign

0.64

T;T

M_CAP

Benign

0.0057

MetaRNN

Benign

0.063

T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

0.075

N;.

PrimateAI

Benign

0.28

PROVEAN

Benign

0.21

N;N

REVEL

Benign

0.12

Sift

Benign

0.65

T;T

Sift4G

Benign

0.65

T;T

Polyphen

0.0040

B;.

Vest4

0.19

MutPred

0.51

Loss of catalytic residue at R346 (P = 0.0365);.;

MVP

0.28

MPC

0.69

ClinPred

0.12

GERP RS

3.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.11

gMVP

0.68

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over