rs370705867

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001130438.3(SPTAN1):​c.7309-15T>C variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000113 in 1,611,700 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00061 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000062 ( 1 hom. )

Consequence

SPTAN1
NM_001130438.3 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 0.182
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 9-128633194-T-C is Benign according to our data. Variant chr9-128633194-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 160030.We mark this variant Likely_benign, oryginal submissions are: {Benign=3, Uncertain_significance=1}.
BS2
High AC in GnomAd4 at 92 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SPTAN1NM_001130438.3 linkuse as main transcriptc.7309-15T>C splice_polypyrimidine_tract_variant, intron_variant ENST00000372739.7 NP_001123910.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SPTAN1ENST00000372739.7 linkuse as main transcriptc.7309-15T>C splice_polypyrimidine_tract_variant, intron_variant 1 NM_001130438.3 ENSP00000361824 P3Q13813-2

Frequencies

GnomAD3 genomes
AF:
0.000606
AC:
92
AN:
151726
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00218
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:
0.00
Gnomad OTH
AF:
0.000959
GnomAD3 exomes
AF:
0.000140
AC:
35
AN:
250424
Hom.:
0
AF XY:
0.0000959
AC XY:
13
AN XY:
135520
show subpopulations
Gnomad AFR exome
AF:
0.00204
Gnomad AMR exome
AF:
0.0000579
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000616
AC:
90
AN:
1459856
Hom.:
1
Cov.:
32
AF XY:
0.0000482
AC XY:
35
AN XY:
726140
show subpopulations
Gnomad4 AFR exome
AF:
0.00239
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000829
GnomAD4 genome
AF:
0.000606
AC:
92
AN:
151844
Hom.:
0
Cov.:
33
AF XY:
0.000647
AC XY:
48
AN XY:
74202
show subpopulations
Gnomad4 AFR
AF:
0.00217
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:
0.00
Gnomad4 OTH
AF:
0.000949
Alfa
AF:
0.000427
Hom.:
0
Bravo
AF:
0.000688

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 5 Uncertain:1Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 15, 2021- -
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoSep 07, 2012- -
Early infantile epileptic encephalopathy with suppression bursts Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 19, 2023- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.97
DANN
Benign
0.45

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.

Other links and lift over

dbSNP: rs370705867; hg19: chr9-131395473; API