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2-218339847-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4BP6

The NM_015488.5(PNKD):​c.301C>T​(p.Arg101Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000273 in 1,613,174 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R101Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

PNKD
NM_015488.5 missense

Scores

7
5
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 2.53
Variant links:
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]
CATIP-AS2 (HGNC:41079): (CATIP antisense RNA 2)

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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=0.31223002).
BP6
Variant 2-218339847-C-T is Benign according to our data. Variant chr2-218339847-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 468628.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PNKDNM_015488.5 linkuse as main transcriptc.301C>T p.Arg101Trp missense_variant 3/10 ENST00000273077.9
CATIP-AS2NR_125777.1 linkuse as main transcriptn.120+11313G>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PNKDENST00000273077.9 linkuse as main transcriptc.301C>T p.Arg101Trp missense_variant 3/101 NM_015488.5 Q8N490-1
CATIP-AS2ENST00000411433.1 linkuse as main transcriptn.120+11313G>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000527
AC:
8
AN:
151942
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000656
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00136
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000129
AC:
32
AN:
249008
Hom.:
0
AF XY:
0.000119
AC XY:
16
AN XY:
134798
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00170
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000891
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000246
AC:
36
AN:
1461114
Hom.:
0
Cov.:
32
AF XY:
0.0000179
AC XY:
13
AN XY:
726810
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000681
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152060
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00136
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000416
ExAC
AF:
0.0000659
AC:
8
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Paroxysmal nonkinesigenic dyskinesia 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityOct 03, 2019- -
Paroxysmal nonkinesigenic dyskinesia Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 27, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.32
BayesDel_addAF
Benign
-0.0045
T
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.54
D;.;.
Eigen
Benign
0.15
Eigen_PC
Benign
0.22
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.94
D;D;D
M_CAP
Pathogenic
0.37
D
MetaRNN
Benign
0.31
T;T;T
MetaSVM
Pathogenic
0.96
D
MutationAssessor
Benign
0.34
N;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Uncertain
-4.0
D;D;D
REVEL
Pathogenic
0.76
Sift
Uncertain
0.0010
D;D;D
Sift4G
Pathogenic
0.0010
D;D;D
Polyphen
1.0
D;B;.
Vest4
0.82
MutPred
0.54
Loss of disorder (P = 0.0023);.;.;
MVP
0.79
MPC
0.63
ClinPred
0.23
T
GERP RS
4.5
Varity_R
0.41
gMVP
0.83

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs533033409; hg19: chr2-219204570; API