rs104894182
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PM5PP3_Strong
The NM_001083116.3(PRF1):c.836G>T(p.Cys279Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. C279Y) has been classified as Likely pathogenic.
Frequency
Genomes: not found (cov: 33)
Consequence
PRF1
NM_001083116.3 missense
NM_001083116.3 missense
Scores
12
5
1
Clinical Significance
Conservation
PhyloP100: 5.10
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]
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]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 10 ACMG points.
PM1
?
In a disulfide_bond (size 166) in uniprot entity PERF_HUMAN there are 23 pathogenic changes around while only 5 benign (82%) in NM_001083116.3
PM2
?
Very rare variant in population databases, with high coverage;
PM5
?
Other missense variant is known to change same aminoacid residue: Variant chr10-70598885-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 13714.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.99
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PRF1 | NM_001083116.3 | c.836G>T | p.Cys279Phe | missense_variant | 3/3 | ENST00000441259.2 | |
PRF1 | NM_005041.6 | c.836G>T | p.Cys279Phe | missense_variant | 3/3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PRF1 | ENST00000441259.2 | c.836G>T | p.Cys279Phe | missense_variant | 3/3 | 5 | NM_001083116.3 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 39
GnomAD4 exome
Cov.:
39
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Familial hemophagocytic lymphohistiocytosis 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Aug 14, 2019 | Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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. This variant has not been reported in the literature in individuals with PRF1-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces cysteine with phenylalanine at codon 279 of the PRF1 protein (p.Cys279Phe). The cysteine residue is highly conserved and there is a large physicochemical difference between cysteine and phenylalanine. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Uncertain
Dann
Uncertain
DEOGEN2
Pathogenic
D;D
Eigen
Pathogenic
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
M_CAP
Uncertain
D
MetaRNN
Pathogenic
D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
H;H
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D
REVEL
Pathogenic
Sift
Pathogenic
D;D
Sift4G
Pathogenic
D;D
Polyphen
D;D
Vest4
MutPred
Gain of MoRF binding (P = 0.0722);Gain of MoRF binding (P = 0.0722);
MVP
MPC
0.67
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at