rs564155435

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_001130438.3(SPTAN1):​c.3536T>A​(p.Met1179Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000743 in 1,614,054 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M1179T) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SPTAN1
NM_001130438.3 missense

Scores

1
3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.96

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • developmental and epileptic encephalopathy, 5
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, G2P, Ambry Genetics
  • genetic developmental and epileptic encephalopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • neuronopathy, distal hereditary motor, autosomal dominant 11
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia
  • spastic paraplegia 91, autosomal dominant, with or without cerebellar ataxia
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia
  • infantile spasms
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary spastic paraplegia
    Inheritance: AR Classification: LIMITED Submitted by: PanelApp Australia

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.41268265).
BS2
High AC in GnomAdExome4 at 9 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001130438.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SPTAN1
NM_001130438.3
MANE Select
c.3536T>Ap.Met1179Lys
missense
Exon 26 of 57NP_001123910.1Q13813-2
SPTAN1
NM_001375318.1
c.3572T>Ap.Met1191Lys
missense
Exon 27 of 59NP_001362247.1
SPTAN1
NM_001375310.1
c.3536T>Ap.Met1179Lys
missense
Exon 26 of 58NP_001362239.1A0A994J6W3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SPTAN1
ENST00000372739.7
TSL:1 MANE Select
c.3536T>Ap.Met1179Lys
missense
Exon 26 of 57ENSP00000361824.4Q13813-2
SPTAN1
ENST00000372731.8
TSL:1
c.3536T>Ap.Met1179Lys
missense
Exon 26 of 56ENSP00000361816.4Q13813-1
SPTAN1
ENST00000358161.9
TSL:1
c.3476T>Ap.Met1159Lys
missense
Exon 25 of 55ENSP00000350882.6Q13813-3

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152204
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000278
AC:
7
AN:
251468
AF XY:
0.0000441
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461732
Hom.:
0
Cov.:
30
AF XY:
0.00000825
AC XY:
6
AN XY:
727198
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
American (AMR)
AF:
0.000134
AC:
6
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111866
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.453
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152322
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41590
American (AMR)
AF:
0.0000654
AC:
1
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Developmental and epileptic encephalopathy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.0068
T
BayesDel_noAF
Uncertain
0.010
CADD
Uncertain
24
DANN
Benign
0.96
DEOGEN2
Benign
0.21
T
Eigen
Benign
-0.14
Eigen_PC
Benign
0.12
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.0091
T
MetaRNN
Benign
0.41
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N
PhyloP100
5.0
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-0.90
N
REVEL
Benign
0.17
Sift
Benign
0.050
D
Sift4G
Benign
0.27
T
Polyphen
0.0010
B
Vest4
0.84
MutPred
0.41
Gain of ubiquitination at M1179 (P = 0.0051)
MVP
0.91
MPC
1.2
ClinPred
0.12
T
GERP RS
6.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.28
gMVP
0.30
Mutation Taster
=89/11
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs564155435; hg19: chr9-131361258; API