rs562480894

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_007254.4(PNKP):​c.730G>C​(p.Gly244Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,613,598 control chromosomes in the GnomAD database, including 1 homozygotes. 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. G244E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 1 hom. )

Consequence

PNKP
NM_007254.4 missense

Scores

1
10
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 3.10

Publications

1 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: Laboratory for Molecular Medicine, G2P, Orphanet
  • microcephaly, seizures, and developmental delay
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
  • 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: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.30492204).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007254.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNKP
NM_007254.4
MANE Select
c.730G>Cp.Gly244Arg
missense
Exon 7 of 17NP_009185.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNKP
ENST00000322344.8
TSL:1 MANE Select
c.730G>Cp.Gly244Arg
missense
Exon 7 of 17ENSP00000323511.2Q96T60-1
PNKP
ENST00000596014.5
TSL:1
c.730G>Cp.Gly244Arg
missense
Exon 6 of 16ENSP00000472300.1Q96T60-1
PNKP
ENST00000593946.5
TSL:1
n.*657G>C
non_coding_transcript_exon
Exon 6 of 16ENSP00000468896.1M0QX49

Frequencies

GnomAD3 genomes
AF:
0.000131
AC:
20
AN:
152202
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
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
GnomAD2 exomes
AF:
0.0000439
AC:
11
AN:
250742
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.000680
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1461278
Hom.:
1
Cov.:
32
AF XY:
0.00000963
AC XY:
7
AN XY:
726974
show subpopulations
African (AFR)
AF:
0.000597
AC:
20
AN:
33476
American (AMR)
AF:
0.0000224
AC:
1
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86228
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53338
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111552
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60368
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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
GnomAD4 genome
AF:
0.000131
AC:
20
AN:
152320
Hom.:
0
Cov.:
33
AF XY:
0.000134
AC XY:
10
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.000481
AC:
20
AN:
41576
American (AMR)
AF:
0.00
AC:
0
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
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:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.0000434
Hom.:
0
Bravo
AF:
0.000151
ExAC
AF:
0.0000576
AC:
7

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
-
not provided (3)
-
-
1
Developmental and epileptic encephalopathy, 12 (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.22
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.84
T
M_CAP
Uncertain
0.28
D
MetaRNN
Benign
0.30
T
MetaSVM
Uncertain
0.11
D
MutationAssessor
Pathogenic
3.5
M
PhyloP100
3.1
PrimateAI
Uncertain
0.51
T
PROVEAN
Uncertain
-4.0
D
REVEL
Uncertain
0.50
Sift
Benign
0.083
T
Sift4G
Uncertain
0.020
D
Polyphen
0.98
D
Vest4
0.71
MutPred
0.67
Gain of MoRF binding (P = 0.0409)
MVP
0.76
MPC
0.50
ClinPred
0.91
D
GERP RS
3.5
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.0
Varity_R
0.52
gMVP
0.54
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs562480894; hg19: chr19-50367235; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.