dbSNP rs35418374: PRF1:p.Arg4Leu (chr10-70600892-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001083116.3(PRF1):c.11G>T(p.Arg4Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000695 in 1,437,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R4C) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

PRF1
NM_001083116.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.04

Variant links:

Genes affected

PRF1 (HGNC:9360): (perforin 1) This gene encodes a protein with structural similarities to complement component C9 that is important in immunity. This protein forms membrane pores that allow the release of granzymes and subsequent cytolysis of target cells. Whether pore formation occurs in the plasma membrane of target cells or in an endosomal membrane inside target cells is subject to debate. Mutations in this gene are associated with a variety of human disease including diabetes, multiple sclerosis, lymphomas, autoimmune lymphoproliferative syndrome (ALPS), aplastic anemia, and familial hemophagocytic lymphohistiocytosis type 2 (FHL2), a rare and lethal autosomal recessive disorder of early childhood. [provided by RefSeq, Aug 2017]

PRF1 links:

PALD1 (HGNC:23530): (phosphatase domain containing paladin 1) Predicted to enable protein tyrosine phosphatase activity. Predicted to be involved in peptidyl-tyrosine dephosphorylation. Located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

PALD1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.123137504).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRF1	NM_001083116.3 link	c.11G>T	p.Arg4Leu	missense_variant	Exon 2 of 3	ENST00000441259.2	NP_001076585.1	P14222
PRF1	NM_005041.6 link	c.11G>T	p.Arg4Leu	missense_variant	Exon 2 of 3		NP_005032.2	P14222

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRF1	ENST00000441259.2 link	c.11G>T	p.Arg4Leu	missense_variant	Exon 2 of 3	5	NM_001083116.3	ENSP00000398568.1		P14222

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.95e-7

AC:

AN:

1437966

Hom.:

Cov.:

AF XY:

0.00000140

AC XY:

AN XY:

713116

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.099

BayesDel_noAF

Benign

-0.38

CADD

Benign

0.24

DANN

Benign

0.81

DEOGEN2

Benign

0.18

.;T;T

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.057

LIST_S2

Benign

0.40

T;.;T

M_CAP

Benign

0.062

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-0.61

MutationAssessor

Benign

1.2

.;L;L

PrimateAI

Benign

0.26

PROVEAN

Benign

1.2

.;N;N

REVEL

Benign

0.14

Sift

Pathogenic

0.0

.;D;D

Sift4G

Benign

0.69

.;T;T

Polyphen

0.0

.;B;B

Vest4

0.082, 0.074

MutPred

0.27

Loss of methylation at R4 (P = 0.0312);Loss of methylation at R4 (P = 0.0312);Loss of methylation at R4 (P = 0.0312);

MVP

0.51

MPC

0.22

ClinPred

0.42

GERP RS

-6.2

Varity_R

0.054

gMVP

0.43

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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