chr19-49861784-G-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_007254.4(PNKP):c.1286C>G(p.Ala429Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,258 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A429L) has been classified as Uncertain significance.

Frequency

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

Exomes 𝑓: 0.000021 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PNKP
NM_007254.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.16

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: 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

PNKP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.020505339).

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PNKP	NM_007254.4	MANE Select	c.1286C>G	p.Ala429Gly	missense	Exon 14 of 17	NP_009185.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PNKP	ENST00000322344.8	TSL:1 MANE Select	c.1286C>G	p.Ala429Gly	missense	Exon 14 of 17	ENSP00000323511.2	Q96T60-1
PNKP	ENST00000596014.5	TSL:1	c.1286C>G	p.Ala429Gly	missense	Exon 13 of 16	ENSP00000472300.1	Q96T60-1
PNKP	ENST00000593946.5	TSL:1	n.*1213C>G		non_coding_transcript_exon	Exon 13 of 16	ENSP00000468896.1	M0QX49

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000184

AC:

AN:

168774

AF XY:

0.0000658

show subpopulations

Gnomad AFR exome

AF:

0.00205

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000859

Gnomad FIN exome

AF:

0.0000785

Gnomad NFE exome

AF:

0.000138

Gnomad OTH exome

AF:

0.000214

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000212

AC:

AN:

1413176

Hom.:

Cov.:

AF XY:

0.0000214

AC XY:

AN XY:

699472

show subpopulations

African (AFR)

AF:

0.0000314

AC:

AN:

31820

American (AMR)

AF:

0.00

AC:

AN:

36934

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25526

East Asian (EAS)

AF:

0.000720

AC:

AN:

36088

South Asian (SAS)

AF:

0.00

AC:

AN:

80872

European-Finnish (FIN)

AF:

0.0000213

AC:

AN:

47010

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5638

European-Non Finnish (NFE)

AF:

0.00000183

AC:

AN:

1090606

Other (OTH)

AF:

0.00

AC:

AN:

58682

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

AN:

152258

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74442

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41568

American (AMR)

AF:

0.00

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000386

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67978

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.000395

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Microcephaly, seizures, and developmental delay (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.088

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.65

CADD

Benign

7.7

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.10

Eigen

Benign

-0.88

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.018

LIST_S2

Uncertain

0.88

M_CAP

Benign

0.073

MetaRNN

Benign

0.021

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.4

PhyloP100

-1.2

PrimateAI

Benign

0.27

PROVEAN

Benign

-1.6

REVEL

Benign

0.028

Sift

Benign

0.21

Sift4G

Uncertain

0.044

Polyphen

0.11

Vest4

0.27

MVP

0.35

MPC

0.12

ClinPred

0.022

GERP RS

-1.6

PromoterAI

0.068

Neutral

(source)

Varity_R

0.084

gMVP

0.40

Mutation Taster

=98/2

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over