NM_014634.4:c.23A>G

Variant names:

• chr22-21946026-T-C
• rs2070773893
• NM_014634.4:c.23A>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_014634.4(PPM1F):​c.23A>G​(p.Lys8Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000128 in 1,564,228 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K8E) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: PPM1F NM_014634.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.55
• Publications: 0 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]

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

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04252073).

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.23A>G	p.Lys8Arg	missense	Exon 2 of 8	NP_055449.1	P49593-1
	PPM1F	NM_001410836.1		c.-298-6346A>G		intron	N/A	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.23A>G	p.Lys8Arg	missense	Exon 2 of 8	ENSP00000263212.5	P49593-1
	PPM1F-AS1	ENST00000458178.2	TSL:1	n.6246T>C		non_coding_transcript_exon	Exon 2 of 2
	PPM1F	ENST00000397495.8	TSL:2	c.23A>G	p.Lys8Arg	missense	Exon 2 of 7	ENSP00000380632.4	A8MX49

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152210 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 7.08e-7 AC: 1 AN: 1412018 Hom.: 0 Cov.: 30 AF XY: 0.00000143 AC XY: 1 AN XY: 697750

African (AFR) AF: 0.00 AC: 0 AN: 31660

American (AMR) AF: 0.00 AC: 0 AN: 39120

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23072

East Asian (EAS) AF: 0.00 AC: 0 AN: 37926

South Asian (SAS) AF: 0.00 AC: 0 AN: 79738

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51880

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5292

European-Non Finnish (NFE) AF: 9.21e-7 AC: 1 AN: 1085266

Other (OTH) AF: 0.00 AC: 0 AN: 58064

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152210 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74368

African (AFR) AF: 0.00 AC: 0 AN: 41454

American (AMR) AF: 0.00 AC: 0 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68036

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

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.072
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.69
CADD	Benign	15
DANN	Uncertain	0.99
DEOGEN2	Benign	0.040	T
Eigen	Benign	-0.73
Eigen_PC	Benign	-0.61
FATHMM_MKL	Benign	0.23	N
LIST_S2	Benign	0.71	T
M_CAP	Benign	0.0033	T
MetaRNN	Benign	0.043	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.69	N
PhyloP100		1.6
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-0.070	N
REVEL	Benign	0.029
Sift	Benign	0.31	T
Sift4G	Benign	0.59	T
Polyphen		0.0	B
Vest4		0.12
MutPred		0.12		Loss of ubiquitination at K8 (P = 0.0019)
MVP		0.30
MPC		0.33
ClinPred		0.044	T
GERP RS		2.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.2
Varity_R		0.077
gMVP		0.17
Mutation Taster		=96/4	polymorphism

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: rs2070773893; hg19: chr22-22300398;