rs201221600

Variant summary

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

The NM_007254.4(PNKP):​c.19C>T​(p.Pro7Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000174 in 1,611,656 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. P7L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

PNKP
NM_007254.4 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 0.297

Publications

5 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=0.0426279).
BP6
Variant 19-49867186-G-A is Benign according to our data. Variant chr19-49867186-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 206421.

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.19C>Tp.Pro7Ser
missense
Exon 2 of 17NP_009185.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PNKP
ENST00000322344.8
TSL:1 MANE Select
c.19C>Tp.Pro7Ser
missense
Exon 2 of 17ENSP00000323511.2Q96T60-1
PNKP
ENST00000596014.5
TSL:1
c.19C>Tp.Pro7Ser
missense
Exon 1 of 16ENSP00000472300.1Q96T60-1
PNKP
ENST00000593946.5
TSL:1
n.19C>T
non_coding_transcript_exon
Exon 1 of 16ENSP00000468896.1M0QX49

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152234
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000176
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000833
AC:
20
AN:
240116
AF XY:
0.0000909
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000292
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000474
Gnomad NFE exome
AF:
0.000159
Gnomad OTH exome
AF:
0.000171
GnomAD4 exome
AF:
0.000179
AC:
261
AN:
1459304
Hom.:
0
Cov.:
32
AF XY:
0.000169
AC XY:
123
AN XY:
725902
show subpopulations
African (AFR)
AF:
0.0000897
AC:
3
AN:
33448
American (AMR)
AF:
0.0000448
AC:
2
AN:
44614
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26084
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86188
European-Finnish (FIN)
AF:
0.0000767
AC:
4
AN:
52158
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5624
European-Non Finnish (NFE)
AF:
0.000216
AC:
240
AN:
1111252
Other (OTH)
AF:
0.000199
AC:
12
AN:
60272
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.480
Heterozygous variant carriers
0
15
29
44
58
73
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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:
0.000125
AC:
19
AN:
152352
Hom.:
0
Cov.:
33
AF XY:
0.000121
AC XY:
9
AN XY:
74504
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41592
American (AMR)
AF:
0.000131
AC:
2
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000176
AC:
12
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
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

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:
0.000226
Hom.:
0
Bravo
AF:
0.000136
ExAC
AF:
0.0000666
AC:
8
EpiCase
AF:
0.00
EpiControl
AF:
0.000237

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
1
not provided (2)
-
1
-
Developmental and epileptic encephalopathy, 12 (1)
-
-
1
Inborn genetic diseases (1)
-
1
-
Microcephaly, seizures, and developmental delay (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
12
DANN
Benign
0.91
DEOGEN2
Benign
0.0058
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.0
FATHMM_MKL
Benign
0.090
N
LIST_S2
Benign
0.85
D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.043
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N
PhyloP100
0.30
PrimateAI
Benign
0.36
T
PROVEAN
Benign
0.53
N
REVEL
Benign
0.064
Sift
Benign
0.16
T
Sift4G
Benign
0.17
T
Polyphen
0.049
B
Vest4
0.25
MVP
0.33
MPC
0.091
ClinPred
0.027
T
GERP RS
0.72
PromoterAI
0.088
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.042
gMVP
0.10
Mutation Taster
=98/2
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: rs201221600; hg19: chr19-50370443; API