Genetic Variant ZSCAN4:p.Gly227Arg (chr19-57678282-G-C) – 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_152677.4(ZSCAN4):c.679G>C(p.Gly227Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000149 in 1,614,118 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 1 hom. )

Consequence

ZSCAN4
NM_152677.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.13

Variant links:

Genes affected

ZSCAN4 (HGNC:23709): (zinc finger and SCAN domain containing 4) The ZSCAN4 gene encodes a protein involved in telomere maintenance and with a key role in the critical feature of mouse embryonic stem (ES) cells, namely, defying cellular senescence and maintaining normal karyotype for many cell divisions in culture (Zalzman et al., 2010 [PubMed 20336070]).[supplied by OMIM, May 2010]

ZSCAN4 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=0.024678081).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ZSCAN4	NM_152677.4 link	c.679G>C	p.Gly227Arg	missense_variant	Exon 5 of 5	ENST00000318203.9	NP_689890.1	Q8NAM6
ZSCAN4	NM_001384833.1 link	c.679G>C	p.Gly227Arg	missense_variant	Exon 7 of 7		NP_001371762.1
ZSCAN4	XM_017026458.1 link	c.679G>C	p.Gly227Arg	missense_variant	Exon 5 of 5		XP_016881947.1	Q8NAM6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ZSCAN4	ENST00000318203.9 link	c.679G>C	p.Gly227Arg	missense_variant	Exon 5 of 5	2	NM_152677.4	ENSP00000321963.4		Q8NAM6

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.000191

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.000163

AC:

AN:

251400

Hom.:

AF XY:

0.000199

AC XY:

AN XY:

135884

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.000237

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000148

AC:

217

AN:

1461882

Hom.:

Cov.:

AF XY:

0.000160

AC XY:

116

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.000418

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.0000562

Gnomad4 NFE exome

AF:

0.000130

Gnomad4 OTH exome

AF:

0.000447

GnomAD4 genome

AF:

0.000158

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74448

show subpopulations

Gnomad4 AFR

AF:

0.000145

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000191

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000128

Hom.:

Bravo

AF:

0.000151

ExAC

AF:

0.000173

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000296

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 21, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.679G>C (p.G227R) alteration is located in exon 5 (coding exon 3) of the ZSCAN4 gene. This alteration results from a G to C substitution at nucleotide position 679, causing the glycine (G) at amino acid position 227 to be replaced by an arginine (R). 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

Uncertain

0.35

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.79

CADD

Benign

0.20

DANN

Benign

0.48

DEOGEN2

Benign

0.011

T;T

Eigen

Benign

-1.7

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.0029

LIST_S2

Benign

0.26

.;T

M_CAP

Benign

0.0018

MetaRNN

Benign

0.025

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-0.55

N;N

PrimateAI

Benign

0.24

PROVEAN

Benign

-0.51

N;.

REVEL

Benign

0.079

Sift

Benign

0.21

T;.

Sift4G

Benign

0.46

T;T

Polyphen

0.0060

B;B

Vest4

0.074

MVP

0.16

MPC

0.097

ClinPred

0.025

GERP RS

-8.0

Varity_R

0.078

gMVP

0.097

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