chr19-49862279-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_007254.4(PNKP):c.1032G>A(p.Arg344Arg) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000756 in 1,593,320 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0039 ( 3 hom., cov: 32)

Exomes 𝑓: 0.00042 ( 2 hom. )

Consequence

PNKP
NM_007254.4 splice_region, synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -1.35

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 -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.62).

BP6

Variant 19-49862279-C-T is Benign according to our data. Variant chr19-49862279-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 138718.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-49862279-C-T is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-1.35 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00395 (601/152292) while in subpopulation AFR AF= 0.0138 (575/41554). AF 95% confidence interval is 0.0129. There are 3 homozygotes in gnomad4. There are 281 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PNKP	NM_007254.4 link	c.1032G>A	p.Arg344Arg	splice_region_variant, synonymous_variant	Exon 12 of 17	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.1032G>A	p.Arg344Arg	splice_region_variant, synonymous_variant	Exon 12 of 17	1	NM_007254.4	ENSP00000323511.2		Q96T60-1

Frequencies

GnomAD3 genomes

AF:

0.00387

AC:

589

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0136

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00124

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.00108

AC:

227

AN:

209500

Hom.:

AF XY:

0.000802

AC XY:

AN XY:

113430

show subpopulations

Gnomad AFR exome

AF:

0.0158

Gnomad AMR exome

AF:

0.000715

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000744

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000109

Gnomad OTH exome

AF:

0.000750

GnomAD4 exome

AF:

0.000418

AC:

603

AN:

1441028

Hom.:

Cov.:

AF XY:

0.000362

AC XY:

259

AN XY:

715016

show subpopulations

Gnomad4 AFR exome

AF:

0.0141

Gnomad4 AMR exome

AF:

0.000734

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000359

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000209

Gnomad4 OTH exome

AF:

0.00117

GnomAD4 genome

AF:

0.00395

AC:

601

AN:

152292

Hom.:

Cov.:

AF XY:

0.00377

AC XY:

281

AN XY:

74472

show subpopulations

Gnomad4 AFR

AF:

0.0138

Gnomad4 AMR

AF:

0.00124

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00109

Hom.:

Bravo

AF:

0.00425

Asia WGS

AF:

0.00202

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Oct 02, 2013

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. -

Genetic Services Laboratory, University of Chicago

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Oct 06, 2015

Eurofins Ntd Llc (ga)

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

Mar 18, 2016

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Developmental and epileptic encephalopathy, 12

Benign:1

Feb 03, 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

-0.62

CADD

Benign

2.0

DANN

Benign

0.75

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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