rs3739203

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_007254.4(PNKP):c.1127-8C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00877 in 1,614,094 control chromosomes in the GnomAD database, including 86 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0087 ( 7 hom., cov: 32)

Exomes 𝑓: 0.0088 ( 79 hom. )

Consequence

PNKP
NM_007254.4 splice_region, intron

Scores

Splicing: ADA: 0.01320

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: 0.562

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.73).

BP6

Variant 19-49862113-G-A is Benign according to our data. Variant chr19-49862113-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 95476.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-49862113-G-A is described in Lovd as [Likely_benign]. Variant chr19-49862113-G-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00868 (1322/152272) while in subpopulation AMR AF= 0.00993 (152/15302). AF 95% confidence interval is 0.00902. There are 7 homozygotes in gnomad4. There are 566 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PNKP	NM_007254.4 link	c.1127-8C>T		splice_region_variant, intron_variant	Intron 12 of 16	ENST00000322344.8	NP_009185.2	Q96T60-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PNKP	ENST00000322344.8 link	c.1127-8C>T		splice_region_variant, intron_variant	Intron 12 of 16	1	NM_007254.4	ENSP00000323511.2		Q96T60-1

Frequencies

GnomAD3 genomes

AF:

0.00870

AC:

1323

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00949

Gnomad AMI

AF:

0.0373

Gnomad AMR

AF:

0.00995

Gnomad ASJ

AF:

0.0121

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000827

Gnomad FIN

AF:

0.00104

Gnomad MID

AF:

0.0285

Gnomad NFE

AF:

0.00963

Gnomad OTH

AF:

0.0110

GnomAD3 exomes

AF:

0.00674

AC:

1695

AN:

251374

Hom.:

AF XY:

0.00650

AC XY:

883

AN XY:

135874

show subpopulations

Gnomad AFR exome

AF:

0.00942

Gnomad AMR exome

AF:

0.00607

Gnomad ASJ exome

AF:

0.00943

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00134

Gnomad FIN exome

AF:

0.00194

Gnomad NFE exome

AF:

0.00954

Gnomad OTH exome

AF:

0.0112

GnomAD4 exome

AF:

0.00878

AC:

12839

AN:

1461822

Hom.:

Cov.:

AF XY:

0.00861

AC XY:

6259

AN XY:

727216

show subpopulations

Gnomad4 AFR exome

AF:

0.0104

Gnomad4 AMR exome

AF:

0.00604

Gnomad4 ASJ exome

AF:

0.0103

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00146

Gnomad4 FIN exome

AF:

0.00215

Gnomad4 NFE exome

AF:

0.00993

Gnomad4 OTH exome

AF:

0.00997

GnomAD4 genome

AF:

0.00868

AC:

1322

AN:

152272

Hom.:

Cov.:

AF XY:

0.00760

AC XY:

566

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.00948

Gnomad4 AMR

AF:

0.00993

Gnomad4 ASJ

AF:

0.0121

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000828

Gnomad4 FIN

AF:

0.00104

Gnomad4 NFE

AF:

0.00963

Gnomad4 OTH

AF:

0.0109

Alfa

AF:

0.00924

Hom.:

Bravo

AF:

0.00940

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:12

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Microcephaly, seizures, and developmental delay

Benign:4

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

May 31, 2017

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oct 09, 2014

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not provided

Benign:4

Mar 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PNKP: BP4, BS2 -

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Jan 26, 2018

Athena Diagnostics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not specified

Benign:3

May 11, 2012

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Nov 27, 2012

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 11, 2015

Genetic Services Laboratory, University of Chicago

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Developmental and epileptic encephalopathy, 12

Benign:1

Feb 02, 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

-0.73

CADD

Benign

5.8

DANN

Benign

0.91

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.013

dbscSNV1_RF

Benign

0.080

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over