rs149812437

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_Strong

The NM_001365999.1(SZT2):ā€‹c.6380A>Cā€‹(p.Tyr2127Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,852 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

SZT2
NM_001365999.1 missense

Scores

18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.684
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SZT2. . Gene score misZ 2.5968 (greater than the threshold 3.09). Trascript score misZ 4.0086 (greater than threshold 3.09). GenCC has associacion of gene with undetermined early-onset epileptic encephalopathy, developmental and epileptic encephalopathy, 18, developmental and epileptic encephalopathy.
BP4
Computational evidence support a benign effect (MetaRNN=0.057103366).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SZT2NM_001365999.1 linkuse as main transcriptc.6380A>C p.Tyr2127Ser missense_variant 45/72 ENST00000634258.3 NP_001352928.1
SZT2NM_015284.4 linkuse as main transcriptc.6209A>C p.Tyr2070Ser missense_variant 44/71 NP_056099.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SZT2ENST00000634258.3 linkuse as main transcriptc.6380A>C p.Tyr2127Ser missense_variant 45/725 NM_001365999.1 ENSP00000489255 P1Q5T011-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251304
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135830
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 SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461852
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727220
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.063
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
14
DANN
Benign
0.86
DEOGEN2
Benign
0.027
T;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-0.93
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.67
T;T
M_CAP
Benign
0.0039
T
MetaRNN
Benign
0.057
T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.76
N;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
1.3
.;N
Sift
Benign
0.42
.;T
Sift4G
Benign
0.44
T;T
Polyphen
0.0
.;B
Vest4
0.31
MutPred
0.18
.;Gain of loop (P = 0.0502);
MVP
0.22
MPC
0.37
ClinPred
0.027
T
GERP RS
-2.7
Varity_R
0.061
gMVP
0.55

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs149812437; hg19: chr1-43903355; API