Genetic Variant ZKSCAN2:p.Lys776Gln (chr16-25240394-T-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001012981.5(ZKSCAN2):c.2326A>C(p.Lys776Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000384 in 1,614,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

ZKSCAN2
NM_001012981.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.204

Variant links:

Genes affected

ZKSCAN2 (HGNC:25677): (zinc finger with KRAB and SCAN domains 2) Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ZKSCAN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.045572728).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZKSCAN2	NM_001012981.5 link	c.2326A>C	p.Lys776Gln	missense_variant	Exon 7 of 7	ENST00000328086.12	NP_001012999.3	Q63HK3-1
ZKSCAN2	XM_017023200.3 link	c.1714A>C	p.Lys572Gln	missense_variant	Exon 6 of 6		XP_016878689.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ZKSCAN2	ENST00000328086.12 link	c.2326A>C	p.Lys776Gln	missense_variant	Exon 7 of 7	1	NM_001012981.5	ENSP00000331626.7	Q63HK3-1
ZKSCAN2	ENST00000569150.1 link	n.*1638A>C		non_coding_transcript_exon_variant	Exon 7 of 7	2		ENSP00000455586.1	H3BQ35
ZKSCAN2	ENST00000569150.1 link	n.*1638A>C		3_prime_UTR_variant	Exon 7 of 7	2		ENSP00000455586.1	H3BQ35

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251352

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

135836

show subpopulations

Gnomad AFR exome

AF:

0.000554

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1461864

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727232

show subpopulations

Gnomad4 AFR exome

AF:

0.000896

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000197

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74516

show subpopulations

Gnomad4 AFR

AF:

0.000721

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000133

Hom.:

Bravo

AF:

0.000230

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 03, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2326A>C (p.K776Q) alteration is located in exon 7 (coding exon 7) of the ZKSCAN2 gene. This alteration results from a A to C substitution at nucleotide position 2326, causing the lysine (K) at amino acid position 776 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0046

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.66

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.71

M_CAP

Benign

0.0040

MetaRNN

Benign

0.046

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.3

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-2.3

REVEL

Benign

0.10

Sift

Benign

0.053

Sift4G

Benign

0.083

Polyphen

0.016

Vest4

0.16

MVP

0.12

MPC

0.14

ClinPred

0.048

GERP RS

4.3

Varity_R

0.18

gMVP

0.12

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

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