22-21945881-G-A

Variant summary

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

The NM_014634.4(PPM1F):​c.168C>T​(p.Gly56=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000145 in 1,612,080 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00021 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00014 ( 1 hom. )

Consequence

PPM1F
NM_014634.4 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.49
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-AS1 (HGNC:40888): (PPM1F antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PPM1FNM_014634.4 linkuse as main transcriptc.168C>T p.Gly56= synonymous_variant 2/8 ENST00000263212.10 NP_055449.1
PPM1FNM_001410836.1 linkuse as main transcriptc.-298-6201C>T intron_variant NP_001397765.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PPM1FENST00000263212.10 linkuse as main transcriptc.168C>T p.Gly56= synonymous_variant 2/81 NM_014634.4 ENSP00000263212 P1P49593-1
PPM1F-AS1ENST00000458178.2 linkuse as main transcriptn.6101G>A non_coding_transcript_exon_variant 2/21
PPM1FENST00000397495.8 linkuse as main transcriptc.168C>T p.Gly56= synonymous_variant 2/72 ENSP00000380632

Frequencies

GnomAD3 genomes
AF:
0.000217
AC:
33
AN:
152218
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00118
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000827
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000221
AC:
55
AN:
249168
Hom.:
0
AF XY:
0.000237
AC XY:
32
AN XY:
134950
show subpopulations
Gnomad AFR exome
AF:
0.0000619
Gnomad AMR exome
AF:
0.000493
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000295
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000240
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000138
AC:
201
AN:
1459744
Hom.:
1
Cov.:
30
AF XY:
0.000147
AC XY:
107
AN XY:
726158
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000560
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000279
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000118
Gnomad4 OTH exome
AF:
0.000216
GnomAD4 genome
AF:
0.000210
AC:
32
AN:
152336
Hom.:
1
Cov.:
33
AF XY:
0.000255
AC XY:
19
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00118
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000828
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000279
Hom.:
0
Bravo
AF:
0.000155
EpiCase
AF:
0.000327
EpiControl
AF:
0.000653

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 submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 17, 2023This sequence change affects codon 56 of the PPM1F mRNA. It is a 'silent' change, meaning that it does not change the encoded amino acid sequence of the PPM1F protein. This variant is present in population databases (rs189969314, gnomAD 0.04%). 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. ClinVar contains an entry for this variant (Variation ID: 2054292). This variant has not been reported in the literature in individuals affected with PPM1F-related conditions. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.68
CADD
Benign
17
DANN
Benign
0.75
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.70
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.70
Position offset: 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.

Other links and lift over

dbSNP: rs189969314; hg19: chr22-22300253; COSMIC: COSV54286821; API