rs201503405

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_007254.4(PNKP):​c.901C>T​(p.Arg301Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000432 in 1,612,912 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00060 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00041 ( 1 hom. )

Consequence

PNKP
NM_007254.4 missense

Scores

3
4
11

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:3

Conservation

PhyloP100: 2.39

Publications

4 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 -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008912802).
BP6
Variant 19-49862573-G-A is Benign according to our data. Variant chr19-49862573-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 95491.

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.901C>Tp.Arg301Trp
missense
Exon 10 of 17NP_009185.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNKP
ENST00000322344.8
TSL:1 MANE Select
c.901C>Tp.Arg301Trp
missense
Exon 10 of 17ENSP00000323511.2Q96T60-1
PNKP
ENST00000596014.5
TSL:1
c.901C>Tp.Arg301Trp
missense
Exon 9 of 16ENSP00000472300.1Q96T60-1
PNKP
ENST00000593946.5
TSL:1
n.*828C>T
non_coding_transcript_exon
Exon 9 of 16ENSP00000468896.1M0QX49

Frequencies

GnomAD3 genomes
AF:
0.000605
AC:
92
AN:
152132
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00677
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000265
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000714
AC:
174
AN:
243790
AF XY:
0.000655
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00646
Gnomad NFE exome
AF:
0.000339
Gnomad OTH exome
AF:
0.000169
GnomAD4 exome
AF:
0.000414
AC:
604
AN:
1460662
Hom.:
1
Cov.:
35
AF XY:
0.000387
AC XY:
281
AN XY:
726624
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33456
American (AMR)
AF:
0.00
AC:
0
AN:
44604
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26080
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39660
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86158
European-Finnish (FIN)
AF:
0.00563
AC:
299
AN:
53146
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.000253
AC:
281
AN:
1111496
Other (OTH)
AF:
0.000348
AC:
21
AN:
60304
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
39
78
116
155
194
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.000604
AC:
92
AN:
152250
Hom.:
0
Cov.:
33
AF XY:
0.000833
AC XY:
62
AN XY:
74432
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41542
American (AMR)
AF:
0.00
AC:
0
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5168
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00677
AC:
72
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000265
AC:
18
AN:
67992
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
6
11
17
22
28
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:
0.000219
Hom.:
5
Bravo
AF:
0.000106
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000504
AC:
61
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000382
EpiControl
AF:
0.00

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)
-
1
-
Microcephaly, seizures, and developmental delay (1)
-
1
-
Microcephaly, seizures, and developmental delay;C4225397:Ataxia - oculomotor apraxia type 4 (1)
-
-
1
PNKP-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.24
FATHMM_MKL
Benign
0.51
D
LIST_S2
Pathogenic
0.97
D
M_CAP
Pathogenic
0.45
D
MetaRNN
Benign
0.0089
T
MetaSVM
Benign
-0.84
T
MutationAssessor
Benign
2.0
M
PhyloP100
2.4
PrimateAI
Uncertain
0.75
T
PROVEAN
Uncertain
-3.0
D
REVEL
Benign
0.20
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0010
D
Polyphen
0.83
P
Vest4
0.51
MVP
0.77
MPC
0.47
ClinPred
0.14
T
GERP RS
2.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.086
gMVP
0.75
Mutation Taster
=96/4
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs201503405; hg19: chr19-50365830; COSMIC: COSV99681744; COSMIC: COSV99681744; API