chr2-218342079-A-T
Position:
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_015488.5(PNKD):c.716A>T(p.Asp239Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,362 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
PNKD
NM_015488.5 missense
NM_015488.5 missense
Scores
8
7
4
Clinical Significance
Conservation
PhyloP100: 8.82
Genes affected
PNKD (HGNC:9153): (PNKD metallo-beta-lactamase domain containing) This gene is thought to play a role in the regulation of myofibrillogenesis. Mutations in this gene have been associated with the movement disorder paroxysmal non-kinesigenic dyskinesia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.877
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PNKD | NM_015488.5 | c.716A>T | p.Asp239Val | missense_variant | 7/10 | ENST00000273077.9 | |
CATIP-AS2 | NR_125777.1 | n.120+9081T>A | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PNKD | ENST00000273077.9 | c.716A>T | p.Asp239Val | missense_variant | 7/10 | 1 | NM_015488.5 | ||
CATIP-AS2 | ENST00000411433.1 | n.120+9081T>A | intron_variant, non_coding_transcript_variant | 3 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461362Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 727006
GnomAD4 exome
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2
AN:
1461362
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31
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0
AN XY:
727006
Gnomad4 AFR exome
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GnomAD4 genome Cov.: 32
GnomAD4 genome
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Paroxysmal nonkinesigenic dyskinesia Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 26, 2021 | 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with PNKD-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change replaces aspartic acid with valine at codon 239 of the PNKD protein (p.Asp239Val). The aspartic acid residue is moderately conserved and there is a large physicochemical difference between aspartic acid and valine. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
D;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Benign
L;.;.
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D
REVEL
Pathogenic
Sift
Benign
D;D;D
Sift4G
Benign
T;T;T
Polyphen
P;P;.
Vest4
MutPred
Loss of sheet (P = 0.0457);.;.;
MVP
MPC
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