10-79351574-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_005729.4(PPIF):c.403G>A(p.Val135Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000384 in 1,613,792 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000037 (0 hom.)
• Consequence: PPIF NM_005729.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.64

Genes affected

PPIF (HGNC:9259): (peptidylprolyl isomerase F) The protein encoded by this gene is a member of the peptidyl-prolyl cis-trans isomerase (PPIase) family. PPIases catalyze the cis-trans isomerization of proline imidic peptide bonds in oligopeptides and accelerate the folding of proteins. This protein is part of the mitochondrial permeability transition pore in the inner mitochondrial membrane. Activation of this pore is thought to be involved in the induction of apoptotic and necrotic cell death. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3372984).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PPIF	NM_005729.4	c.403G>A	p.Val135Met	missense_variant	4/6	ENST00000225174.8
PPIF	XM_005269379.3	c.403G>A	p.Val135Met	missense_variant	4/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PPIF	ENST00000225174.8	c.403G>A	p.Val135Met	missense_variant	4/6	1	NM_005729.4	P1
PPIF	ENST00000448165.1	c.295G>A	p.Val99Met	missense_variant	4/6	2
PPIF	ENST00000498681.5	n.483G>A		non_coding_transcript_exon_variant	4/4	2
PPIF	ENST00000472580.6	c.403G>A	p.Val135Met	missense_variant, NMD_transcript_variant	4/6	5

Frequencies

GnomAD3 genomes AF: 0.0000525 AC: 8 AN: 152238 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: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000319 AC: 8 AN: 250838 Hom.: 0 AF XY: 0.0000368 AC XY: 5 AN XY: 135724

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000980

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000353

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000369 AC: 54 AN: 1461554 Hom.: 0 Cov.: 30 AF XY: 0.0000344 AC XY: 25 AN XY: 727082

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000812

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000387

Gnomad4 OTH exome AF: 0.0000497

GnomAD4 genome AF: 0.0000525 AC: 8 AN: 152238 Hom.: 0 Cov.: 33 AF XY: 0.0000672 AC XY: 5 AN XY: 74370

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000103

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000282 Hom.: 0

Bravo AF: 0.0000264

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.00000824 AC: 1

Asia WGS AF: 0.00115 AC: 4 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 29, 2022

The c.403G>A (p.V135M) alteration is located in exon 4 (coding exon 4) of the PPIF gene. This alteration results from a G to A substitution at nucleotide position 403, causing the valine (V) at amino acid position 135 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.38
Cadd	Uncertain	24
Dann	Uncertain	1.0
DEOGEN2	Benign	0.17	T
Eigen	Benign	0.16
Eigen_PC	Benign	0.078
FATHMM_MKL	Benign	0.47	N
LIST_S2	Uncertain	0.96	D
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.34	T
MetaSVM	Benign	-0.90	T
MutationAssessor	Benign	1.4	L
MutationTaster	Benign	1.0	N;N
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.13
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.016	D
Polyphen		0.92	P
Vest4		0.42
MVP		0.83
MPC		0.11
ClinPred		0.36	T
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.44
gMVP		0.39

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

Other links and lift over

dbSNP: rs144470581; hg19: chr10-81111330;