rs571119317

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_007254.4(PNKP):​c.624C>T​(p.Ala208Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000166 in 1,614,148 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 4 hom. )

Consequence

PNKP
NM_007254.4 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -5.10

Publications

0 publications found
Variant links:
Genes affected
PNKP (HGNC:9154): (polynucleotide kinase 3'-phosphatase) This locus represents a gene involved in DNA repair. In response to ionizing radiation or oxidative damage, the protein encoded by this locus catalyzes 5' phosphorylation and 3' dephosphorylation of nucleic acids. Mutations at this locus have been associated with microcephaly, seizures, and developmental delay.[provided by RefSeq, Sep 2010]
PNKP Gene-Disease associations (from GenCC):
  • ataxia - oculomotor apraxia type 4
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P, Laboratory for Molecular Medicine
  • microcephaly, seizures, and developmental delay
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • Charcot-Marie-Tooth disease type 2B2
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 19-49864191-G-A is Benign according to our data. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921. Variant chr19-49864191-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 211921.
BP7
Synonymous conserved (PhyloP=-5.1 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000178 (260/1461832) while in subpopulation SAS AF = 0.00255 (220/86256). AF 95% confidence interval is 0.00227. There are 4 homozygotes in GnomAdExome4. There are 191 alleles in the male GnomAdExome4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 4 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PNKPNM_007254.4 linkc.624C>T p.Ala208Ala synonymous_variant Exon 6 of 17 ENST00000322344.8 NP_009185.2 Q96T60-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PNKPENST00000322344.8 linkc.624C>T p.Ala208Ala synonymous_variant Exon 6 of 17 1 NM_007254.4 ENSP00000323511.2 Q96T60-1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000314
AC:
79
AN:
251332
AF XY:
0.000390
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000178
AC:
260
AN:
1461832
Hom.:
4
Cov.:
33
AF XY:
0.000263
AC XY:
191
AN XY:
727214
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00255
AC:
220
AN:
86256
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53402
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000234
AC:
26
AN:
1111978
Other (OTH)
AF:
0.000199
AC:
12
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
21
41
62
82
103
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152316
Hom.:
0
Cov.:
32
AF XY:
0.0000806
AC XY:
6
AN XY:
74472
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41560
American (AMR)
AF:
0.00
AC:
0
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00145
AC:
7
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.538
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000118
Hom.:
0
Bravo
AF:
0.0000340
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Mar 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PNKP: BP4, BP7 -

Sep 01, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Uncertain:1
Nov 18, 2014
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Developmental and epileptic encephalopathy, 12 Benign:1
Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.17
DANN
Benign
0.91
PhyloP100
-5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs571119317; hg19: chr19-50367448; COSMIC: COSV55589758; COSMIC: COSV55589758; API