22-21925585-G-A

Variant names:

• chr22-21925585-G-A
• rs60327076
• NM_014634.4:c.969C>T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BP7

The NM_014634.4(PPM1F):​c.969C>T​(p.Ala323Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000694 in 1,613,612 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. Synonymous variant affecting the same amino acid position (i.e. A323A) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.000099 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000066 (0 hom.)
• Consequence: PPM1F NM_014634.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.64
• Publications: 3 publications found

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]

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.67).
• BP7: Synonymous conserved (PhyloP=-1.64 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014634.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PPM1F	NM_014634.4	MANE Select	c.969C>T	p.Ala323Ala	synonymous	Exon 7 of 8	NP_055449.1	P49593-1
	PPM1F	NM_001410836.1		c.465C>T	p.Ala155Ala	synonymous	Exon 6 of 7	NP_001397765.1	B5MCT7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PPM1F	ENST00000263212.10	TSL:1 MANE Select	c.969C>T	p.Ala323Ala	synonymous	Exon 7 of 8	ENSP00000263212.5	P49593-1
	PPM1F	ENST00000397495.8	TSL:2	c.969C>T	p.Ala323Ala	synonymous	Exon 7 of 7	ENSP00000380632.4	A8MX49
	PPM1F	ENST00000407142.5	TSL:5	c.465C>T	p.Ala155Ala	synonymous	Exon 5 of 6	ENSP00000384930.1	B5MCT7

Frequencies

GnomAD3 genomes AF: 0.0000986 AC: 15 AN: 152192 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000483

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000851

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000203 AC: 51 AN: 250998 AF XY: 0.000162

Gnomad AFR exome AF: 0.0000616

Gnomad AMR exome AF: 0.00116

Gnomad ASJ exome AF: 0.000497

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000881

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000664 AC: 97 AN: 1461420 Hom.: 0 Cov.: 30 AF XY: 0.0000605 AC XY: 44 AN XY: 727004

African (AFR) AF: 0.0000299 AC: 1 AN: 33472

American (AMR) AF: 0.00121 AC: 54 AN: 44698

Ashkenazi Jewish (ASJ) AF: 0.000651 AC: 17 AN: 26132

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39668

South Asian (SAS) AF: 0.000139 AC: 12 AN: 86238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53342

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00000899 AC: 10 AN: 1111732

Other (OTH) AF: 0.0000331 AC: 2 AN: 60374

GnomAD4 genome AF: 0.0000986 AC: 15 AN: 152192 Hom.: 0 Cov.: 33 AF XY: 0.000134 AC XY: 10 AN XY: 74352

African (AFR) AF: 0.0000483 AC: 2 AN: 41438

American (AMR) AF: 0.000851 AC: 13 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68044

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 2

Bravo AF: 0.000162

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.67
CADD	Benign	1.8
DANN	Benign	0.72
PhyloP100		-1.6
RBP_binding_hub_radar		0.92
RBP_regulation_power_radar		2.7

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

Other links and lift over

dbSNP: rs60327076; hg19: chr22-22279958; COSMIC: COSV54282740;