9-128607632-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 1P and 7B. PP2BP4BP6_ModerateBS2

The NM_001130438.3(SPTAN1):​c.4075C>T​(p.Arg1359Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000942 in 1,613,892 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000099 ( 0 hom. )

Consequence

SPTAN1
NM_001130438.3 missense

Scores

3
9
7

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.59
Variant links:
Genes affected
SPTAN1 (HGNC:11273): (spectrin alpha, non-erythrocytic 1) Spectrins are a family of filamentous cytoskeletal proteins that function as essential scaffold proteins that stabilize the plasma membrane and organize intracellular organelles. Spectrins are composed of alpha and beta dimers that associate to form tetramers linked in a head-to-head arrangement. This gene encodes an alpha spectrin that is specifically expressed in nonerythrocytic cells. The encoded protein has been implicated in other cellular functions including DNA repair and cell cycle regulation. Mutations in this gene are the cause of early infantile epileptic encephalopathy-5. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Sep 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SPTAN1. . Gene score misZ 5.523 (greater than the threshold 3.09). Trascript score misZ 7.9287 (greater than threshold 3.09). GenCC has associacion of gene with developmental and epileptic encephalopathy, 5, developmental and epileptic encephalopathy, West syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.36325967).
BP6
Variant 9-128607632-C-T is Benign according to our data. Variant chr9-128607632-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 461223.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPTAN1NM_001130438.3 linkuse as main transcriptc.4075C>T p.Arg1359Trp missense_variant 32/57 ENST00000372739.7 NP_001123910.1 Q13813-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPTAN1ENST00000372739.7 linkuse as main transcriptc.4075C>T p.Arg1359Trp missense_variant 32/571 NM_001130438.3 ENSP00000361824.4 Q13813-2

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
151960
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251466
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
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:
0.0000615
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000985
AC:
144
AN:
1461814
Hom.:
0
Cov.:
31
AF XY:
0.000118
AC XY:
86
AN XY:
727218
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.000127
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152078
Hom.:
0
Cov.:
31
AF XY:
0.0000404
AC XY:
3
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.0000723
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000736
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000302
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Early infantile epileptic encephalopathy with suppression bursts Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpNov 27, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Uncertain
0.094
D
BayesDel_noAF
Uncertain
0.080
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.57
D;.;.;.;.
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.36
T;T;T;T;T
MetaSVM
Benign
-0.85
T
MutationAssessor
Benign
1.8
L;.;L;.;.
PrimateAI
Pathogenic
0.93
D
PROVEAN
Uncertain
-2.9
D;.;D;.;.
REVEL
Benign
0.27
Sift
Uncertain
0.019
D;.;D;.;.
Sift4G
Uncertain
0.019
D;D;D;D;D
Polyphen
0.046
B;.;B;D;.
Vest4
0.73
MVP
0.58
MPC
1.8
ClinPred
0.72
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.60
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.16
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: rs150944593; hg19: chr9-131369911; API