chr1-43422501-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_001365999.1(SZT2):c.1791C>T(p.His597His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000952 in 1,592,748 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00099 ( 1 hom. )

Consequence

SZT2
NM_001365999.1 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 2.06

Variant links:

Genes affected

SZT2 (HGNC:29040): (SZT2 subunit of KICSTOR complex) The protein encoded by this gene is expressed in the brain, predominantly in the parietal and frontal cortex as well as in dorsal root ganglia. It is localized to the peroxisome, and is implicated in resistance to oxidative stress. It likely functions by increasing superoxide dismutase (SOD) activity, but itself has no direct SOD activity. Studies in mice show that this gene confers low seizure threshold, and may also enhance epileptogenesis. [provided by RefSeq, Jun 2011]

SZT2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.48).

BP6

Variant 1-43422501-C-T is Benign according to our data. Variant chr1-43422501-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 416953.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-43422501-C-T is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SZT2	NM_001365999.1 link	c.1791C>T	p.His597His	synonymous_variant	Exon 13 of 72	ENST00000634258.3	NP_001352928.1
SZT2	NM_015284.4 link	c.1791C>T	p.His597His	synonymous_variant	Exon 13 of 71		NP_056099.3	Q5T011-5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SZT2	ENST00000634258.3 link	c.1791C>T	p.His597His	synonymous_variant	Exon 13 of 72	5	NM_001365999.1	ENSP00000489255.1	Q5T011-1
SZT2	ENST00000562955.2 link	c.1791C>T	p.His597His	synonymous_variant	Exon 13 of 71	5		ENSP00000457168.1	Q5T011-5
SZT2	ENST00000470139.1 link	n.522C>T		non_coding_transcript_exon_variant	Exon 4 of 18	2		ENSP00000492726.1	A0A1W2PRY5

Frequencies

GnomAD3 genomes

AF:

0.000552

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000985

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.000429

AC:

AN:

223730

Hom.:

AF XY:

0.000437

AC XY:

AN XY:

123548

show subpopulations

Gnomad AFR exome

AF:

0.000287

Gnomad AMR exome

AF:

0.000386

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:

0.000748

Gnomad OTH exome

AF:

0.000352

GnomAD4 exome

AF:

0.000995

AC:

1433

AN:

1440520

Hom.:

Cov.:

AF XY:

0.000939

AC XY:

673

AN XY:

716692

show subpopulations

Gnomad4 AFR exome

AF:

0.000180

Gnomad4 AMR exome

AF:

0.000431

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000264

Gnomad4 NFE exome

AF:

0.00122

Gnomad4 OTH exome

AF:

0.000833

GnomAD4 genome

AF:

0.000552

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.000551

AC XY:

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000985

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000684

Hom.:

Bravo

AF:

0.000506

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:6

Oct 23, 2021

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Sep 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

SZT2: BP4, BP7 -

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Developmental and epileptic encephalopathy, 18

Benign:1

Apr 11, 2023

Genome-Nilou Lab

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

Sep 20, 2017

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.48

CADD

Benign

6.7

DANN

Benign

0.85

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