rs1306918506

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM2PP5BP4

The NM_001365999.1(SZT2):​c.7112A>T​(p.Glu2371Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SZT2
NM_001365999.1 missense

Scores

5
13

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 4.39

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • developmental and epileptic encephalopathy, 18
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P, Illumina
  • genetic developmental and epileptic encephalopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • undetermined early-onset epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 1-43439950-A-T is Pathogenic according to our data. Variant chr1-43439950-A-T is described in ClinVar as Pathogenic. ClinVar VariationId is 433093.Status of the report is no_assertion_criteria_provided, 0 stars.
BP4
Computational evidence support a benign effect (MetaRNN=0.35880917). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SZT2NM_001365999.1 linkc.7112A>T p.Glu2371Val missense_variant Exon 51 of 72 ENST00000634258.3 NP_001352928.1
SZT2NM_015284.4 linkc.6941A>T p.Glu2314Val missense_variant Exon 50 of 71 NP_056099.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SZT2ENST00000634258.3 linkc.7112A>T p.Glu2371Val missense_variant Exon 51 of 72 5 NM_001365999.1 ENSP00000489255.1
SZT2ENST00000562955.2 linkc.6941A>T p.Glu2314Val missense_variant Exon 50 of 71 5 ENSP00000457168.1
SZT2ENST00000648058.1 linkn.3566A>T non_coding_transcript_exon_variant Exon 19 of 40
SZT2ENST00000649403.1 linkn.1862A>T non_coding_transcript_exon_variant Exon 16 of 37

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000797
AC:
2
AN:
251034
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461628
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727118
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33468
American (AMR)
AF:
0.00
AC:
0
AN:
44686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26104
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86230
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111896
Other (OTH)
AF:
0.00
AC:
0
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Self-limited epilepsy with centrotemporal spikes Pathogenic:1
Jan 01, 2017
Bioinformatics Core, Luxembourg Center for Systems Biomedicine
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:case-control

CAADphred>15 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.56
BayesDel_addAF
Uncertain
0.073
D
BayesDel_noAF
Benign
-0.12
CADD
Uncertain
25
DANN
Benign
0.97
DEOGEN2
Benign
0.094
T;.
Eigen
Benign
0.032
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.86
D;D
M_CAP
Benign
0.0032
T
MetaRNN
Benign
0.36
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L;.
PhyloP100
4.4
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-2.2
.;N
Sift
Benign
0.27
.;T
Sift4G
Benign
0.11
T;T
Polyphen
0.62
.;P
Vest4
0.67
MutPred
0.36
.;Loss of sheet (P = 0.0126);
MVP
0.55
MPC
0.79
ClinPred
0.69
D
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.16
gMVP
0.39
Mutation Taster
=15/85
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1306918506; hg19: chr1-43905621; API