9-128618060-C-T

Position:

chr9-128618060-C-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PP2BP4_StrongBP6_Very_StrongBS2

The NM_001130438.3(SPTAN1):c.5552C>T(p.Ala1851Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000694 in 1,612,654 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0033 ( 3 hom., cov: 31)

Exomes 𝑓: 0.00042 ( 2 hom. )

Consequence

SPTAN1
NM_001130438.3 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 7.53

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]

SPTAN1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 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=0.01095441).

BP6

Variant 9-128618060-C-T is Benign according to our data. Variant chr9-128618060-C-T is described in ClinVar as [Benign]. Clinvar id is 139302.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-128618060-C-T is described in Lovd as [Likely_benign].

BS2

High AC in GnomAd4 at 507 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SPTAN1	NM_001130438.3 linkuse as main transcript	c.5552C>T	p.Ala1851Val	missense_variant	43/57	ENST00000372739.7	NP_001123910.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SPTAN1	ENST00000372739.7 linkuse as main transcript	c.5552C>T	p.Ala1851Val	missense_variant	43/57	1	NM_001130438.3	ENSP00000361824	P3	Q13813-2

Frequencies

GnomAD3 genomes

AF:

0.00333

AC:

507

AN:

152112

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0113

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00151

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:

0.000132

Gnomad OTH

AF:

0.00335

GnomAD3 exomes

AF:

0.000992

AC:

246

AN:

248080

Hom.:

AF XY:

0.000750

AC XY:

101

AN XY:

134684

show subpopulations

Gnomad AFR exome

AF:

0.0134

Gnomad AMR exome

AF:

0.000696

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:

0.0000981

Gnomad OTH exome

AF:

0.000496

GnomAD4 exome

AF:

0.000419

AC:

612

AN:

1460426

Hom.:

Cov.:

AF XY:

0.000366

AC XY:

266

AN XY:

726544

show subpopulations

Gnomad4 AFR exome

AF:

0.0128

Gnomad4 AMR exome

AF:

0.000917

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000917

Gnomad4 OTH exome

AF:

0.000614

GnomAD4 genome

AF:

0.00333

AC:

507

AN:

152228

Hom.:

Cov.:

AF XY:

0.00329

AC XY:

245

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.0113

Gnomad4 AMR

AF:

0.00151

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00331

Alfa

AF:

0.000781

Hom.:

Bravo

AF:

0.00386

ESP6500AA

AF:

0.0111

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00126

AC:

153

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Jun 10, 2016	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Feb 03, 2014	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Inborn genetic diseases

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 13, 2016

This alteration is classified as 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. -

Early infantile epileptic encephalopathy with suppression bursts

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

SPTAN1-related disorder

Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 29, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Dec 01, 2023

SPTAN1: BS1, BS2 -

Developmental and epileptic encephalopathy, 5

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Jul 15, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.38

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.23

T;.;.;.;.

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.85

T;T;T;T;T

MetaRNN

Benign

0.011

T;T;T;T;T

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.5

M;.;.;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-1.9

N;.;N;.;.

REVEL

Benign

0.23

Sift

Benign

0.10

T;.;T;.;.

Sift4G

Benign

0.24

T;T;T;T;T

Polyphen

1.0

D;.;D;D;.

Vest4

0.57

MVP

0.54

MPC

0.86

ClinPred

0.037

GERP RS

6.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.17

gMVP

0.30

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

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