rs11543345

Positions:

chr9-128624420-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001130438.3(SPTAN1):c.5925G>A(p.Ala1975=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00149 in 1,614,004 control chromosomes in the GnomAD database, including 37 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0075 ( 20 hom., cov: 32)

Exomes 𝑓: 0.00086 ( 17 hom. )

Consequence

SPTAN1
NM_001130438.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -0.520

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 -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

BP6

Variant 9-128624420-G-A is Benign according to our data. Variant chr9-128624420-G-A is described in ClinVar as [Benign]. Clinvar id is 139305.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-128624420-G-A is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=-0.52 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00751 (1144/152304) while in subpopulation AFR AF= 0.0262 (1087/41562). AF 95% confidence interval is 0.0249. There are 20 homozygotes in gnomad4. There are 522 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 1144 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SPTAN1	NM_001130438.3 linkuse as main transcript	c.5925G>A	p.Ala1975=	synonymous_variant	46/57	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.5925G>A	p.Ala1975=	synonymous_variant	46/57	1	NM_001130438.3	ENSP00000361824	P3	Q13813-2

Frequencies

GnomAD3 genomes

AF:

0.00752

AC:

1144

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0262

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00242

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000577

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00334

GnomAD3 exomes

AF:

0.00203

AC:

511

AN:

251186

Hom.:

AF XY:

0.00152

AC XY:

207

AN XY:

135834

show subpopulations

Gnomad AFR exome

AF:

0.0271

Gnomad AMR exome

AF:

0.00127

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.00180

GnomAD4 exome

AF:

0.000857

AC:

1253

AN:

1461700

Hom.:

Cov.:

AF XY:

0.000748

AC XY:

544

AN XY:

727132

show subpopulations

Gnomad4 AFR exome

AF:

0.0274

Gnomad4 AMR exome

AF:

0.00145

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00176

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000737

Gnomad4 OTH exome

AF:

0.00185

GnomAD4 genome

AF:

0.00751

AC:

1144

AN:

152304

Hom.:

Cov.:

AF XY:

0.00701

AC XY:

522

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.0262

Gnomad4 AMR

AF:

0.00235

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000579

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00331

Alfa

AF:

0.00458

Hom.:

Bravo

AF:

0.00864

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000237

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 27, 2013	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. -
Benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Mar 04, 2013	- -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

Developmental and epileptic encephalopathy, 5

Benign:2

Benign, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Jul 15, 2021	- -
Benign, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Apr 13, 2022	- -

Inborn genetic diseases

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 02, 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 30, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

0.99

DANN

Benign

0.62

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