rs797045891

Variant summary

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

The NM_007254.4(PNKP):​c.1052C>T​(p.Pro351Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000125 in 1,604,886 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P351S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

PNKP
NM_007254.4 missense

Scores

6
12

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 2.88

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: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.31214818).

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNKP
NM_007254.4
MANE Select
c.1052C>Tp.Pro351Leu
missense
Exon 12 of 17NP_009185.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNKP
ENST00000322344.8
TSL:1 MANE Select
c.1052C>Tp.Pro351Leu
missense
Exon 12 of 17ENSP00000323511.2
PNKP
ENST00000596014.5
TSL:1
c.1052C>Tp.Pro351Leu
missense
Exon 11 of 16ENSP00000472300.1
PNKP
ENST00000593946.5
TSL:1
n.*979C>T
non_coding_transcript_exon
Exon 11 of 16ENSP00000468896.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152190
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000872
AC:
2
AN:
229314
AF XY:
0.00000805
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:
0.0000506
Gnomad NFE exome
AF:
0.00000975
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000124
AC:
18
AN:
1452696
Hom.:
0
Cov.:
34
AF XY:
0.0000152
AC XY:
11
AN XY:
721842
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33412
American (AMR)
AF:
0.00
AC:
0
AN:
43012
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25858
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39356
South Asian (SAS)
AF:
0.0000236
AC:
2
AN:
84862
European-Finnish (FIN)
AF:
0.0000572
AC:
3
AN:
52424
Middle Eastern (MID)
AF:
0.000524
AC:
3
AN:
5726
European-Non Finnish (NFE)
AF:
0.00000722
AC:
8
AN:
1107978
Other (OTH)
AF:
0.0000333
AC:
2
AN:
60068
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74340
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41444
American (AMR)
AF:
0.0000654
AC:
1
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.0000941
AC:
1
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Ataxia - oculomotor apraxia type 4 (1)
-
1
-
Developmental and epileptic encephalopathy, 12 (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.090
T
Eigen
Benign
-0.046
Eigen_PC
Benign
0.032
FATHMM_MKL
Benign
0.68
D
LIST_S2
Uncertain
0.91
D
M_CAP
Uncertain
0.27
D
MetaRNN
Benign
0.31
T
MetaSVM
Benign
-0.77
T
MutationAssessor
Uncertain
2.1
M
PhyloP100
2.9
PrimateAI
Uncertain
0.67
T
PROVEAN
Uncertain
-3.7
D
REVEL
Benign
0.071
Sift
Benign
0.19
T
Sift4G
Benign
0.082
T
Polyphen
0.57
P
Vest4
0.40
MutPred
0.36
Loss of sheet (P = 0.007)
MVP
0.73
MPC
0.31
ClinPred
0.86
D
GERP RS
5.1
PromoterAI
-0.043
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.090
gMVP
0.53
Mutation Taster
=82/18
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: rs797045891; hg19: chr19-50365516; API