Genetic Variant ZKSCAN1:p.Arg120His (chr7-100023865-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_003439.4(ZKSCAN1):c.359G>A(p.Arg120His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000595 in 1,613,412 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000064 ( 1 hom. )

Consequence

ZKSCAN1
NM_003439.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.63

Publications

0 publications found

Variant links:

Genes affected

ZKSCAN1 (HGNC:13101): (zinc finger with KRAB and SCAN domains 1) This gene encodes a member of the Kruppel C2H2-type zinc-finger family of proteins. This encoded protein may function as a transcription factor that regulates the expression of GABA type-A receptors in the brain. Transcripts from this gene have been shown to form stable and abundant circular RNAs. Elevated expression of this gene has been observed in gastric cancer and the encoded protein may stimulate migration and invasion of human gastric cancer cells. [provided by RefSeq, Oct 2016]

ZKSCAN1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4

Computational evidence support a benign effect (MetaRNN=0.07483092).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZKSCAN1	NM_003439.4 link	c.359G>A	p.Arg120His	missense_variant	Exon 2 of 6	ENST00000324306.11	NP_003430.1	P17029

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZKSCAN1	ENST00000324306.11 link	c.359G>A	p.Arg120His	missense_variant	Exon 2 of 6	1	NM_003439.4	ENSP00000323148.6		P17029

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000132

AC:

AN:

250230

AF XY:

0.000111

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000493

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000142

Gnomad NFE exome

AF:

0.0000706

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000636

AC:

AN:

1461274

Hom.:

Cov.:

AF XY:

0.0000798

AC XY:

AN XY:

726964

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.000425

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.000246

AC:

AN:

52928

Middle Eastern (MID)

AF:

0.00260

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000279

AC:

AN:

1111980

Other (OTH)

AF:

0.000149

AC:

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41420

American (AMR)

AF:

0.0000655

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000490

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 12, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.359G>A (p.R120H) alteration is located in exon 2 (coding exon 1) of the ZKSCAN1 gene. This alteration results from a G to A substitution at nucleotide position 359, causing the arginine (R) at amino acid position 120 to be replaced by a histidine (H). 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

0.097

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

(source)

DANN

Benign

0.80

DEOGEN2

Benign

0.016

T;.;T;.

Eigen

Benign

0.082

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.85

T;.;D;D

M_CAP

Benign

0.0098

MetaRNN

Benign

0.075

T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

-0.23

N;.;.;.

PhyloP100

2.6

PrimateAI

Uncertain

0.49

PROVEAN

Benign

2.2

N;N;N;.

REVEL

Benign

0.27

Sift

Benign

1.0

T;T;T;.

Sift4G

Benign

0.47

T;T;T;T

Polyphen

1.0

D;D;.;D

Vest4

0.24

MutPred

0.44

Loss of helix (P = 0.0033);.;Loss of helix (P = 0.0033);.;

MVP

0.66

MPC

1.6

ClinPred

0.11

GERP RS

4.6

PromoterAI

0.014

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.058

gMVP

0.50

Mutation Taster

=76/24

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

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7-100023865-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over