1-43447895-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001365999.1(SZT2):ā€‹c.9487T>Cā€‹(p.Phe3163Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

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

Consequence

SZT2
NM_001365999.1 missense

Scores

7
8
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67
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-AS1 (HGNC:41225): (SZT2 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.798

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SZT2NM_001365999.1 linkc.9487T>C p.Phe3163Leu missense_variant Exon 68 of 72 ENST00000634258.3 NP_001352928.1
SZT2NM_015284.4 linkc.9316T>C p.Phe3106Leu missense_variant Exon 67 of 71 NP_056099.3 Q5T011-5
SZT2-AS1NR_046744.1 linkn.580A>G non_coding_transcript_exon_variant Exon 2 of 2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SZT2ENST00000634258.3 linkc.9487T>C p.Phe3163Leu missense_variant Exon 68 of 72 5 NM_001365999.1 ENSP00000489255.1 Q5T011-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461886
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
727246
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Aug 20, 2019
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Uncertain
0.089
D
BayesDel_noAF
Benign
-0.11
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.46
T;.
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Benign
0.015
T
MetaRNN
Pathogenic
0.80
D;D
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Uncertain
2.1
M;.
PrimateAI
Pathogenic
0.84
D
PROVEAN
Uncertain
-3.6
.;D
Sift
Uncertain
0.0060
.;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.74
MutPred
0.50
Loss of catalytic residue at F3163 (P = 0.0018);.;
MVP
0.42
MPC
0.95
ClinPred
0.98
D
GERP RS
5.8
Varity_R
0.42
gMVP
0.75

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-43913566; API