rs745697305

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS1

The NM_001130438.3(SPTAN1):​c.4243G>C​(p.Glu1415Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,972 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 (★★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

SPTAN1
NM_001130438.3 missense

Scores

2
7
9

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 8.11

Publications

4 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=0.27395386).
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.0000394 (6/152100) while in subpopulation EAS AF = 0.000577 (3/5196). AF 95% confidence interval is 0.000157. There are 0 homozygotes in GnomAd4. There are 3 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

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.4243G>Cp.Glu1415Gln
missense
Exon 33 of 57NP_001123910.1Q13813-2
SPTAN1
NM_001375318.1
c.4279G>Cp.Glu1427Gln
missense
Exon 34 of 59NP_001362247.1
SPTAN1
NM_001375310.1
c.4243G>Cp.Glu1415Gln
missense
Exon 33 of 58NP_001362239.1A0A994J6W3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SPTAN1
ENST00000372739.7
TSL:1 MANE Select
c.4243G>Cp.Glu1415Gln
missense
Exon 33 of 57ENSP00000361824.4Q13813-2
SPTAN1
ENST00000372731.8
TSL:1
c.4243G>Cp.Glu1415Gln
missense
Exon 33 of 56ENSP00000361816.4Q13813-1
SPTAN1
ENST00000358161.9
TSL:1
c.4183G>Cp.Glu1395Gln
missense
Exon 32 of 55ENSP00000350882.6Q13813-3

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152100
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000577
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
251408
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000217
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461872
Hom.:
0
Cov.:
32
AF XY:
0.00000413
AC XY:
3
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.000126
AC:
5
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53410
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112010
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.435
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000394
AC:
6
AN:
152100
Hom.:
0
Cov.:
31
AF XY:
0.0000404
AC XY:
3
AN XY:
74290
show subpopulations
African (AFR)
AF:
0.0000724
AC:
3
AN:
41410
American (AMR)
AF:
0.00
AC:
0
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000577
AC:
3
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10590
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Developmental and epileptic encephalopathy, 5 (2)
-
1
-
Developmental and epileptic encephalopathy (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.28
T
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.27
T
MetaSVM
Benign
-0.49
T
MutationAssessor
Uncertain
2.5
M
PhyloP100
8.1
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.27
Sift
Uncertain
0.0070
D
Sift4G
Uncertain
0.021
D
Polyphen
0.67
P
Vest4
0.52
MutPred
0.52
Loss of ubiquitination at K1419 (P = 0.1405)
MVP
0.48
MPC
0.78
ClinPred
0.50
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.63
gMVP
0.52
Mutation Taster
=61/39
polymorphism

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

Other links and lift over

dbSNP: rs745697305; hg19: chr9-131370227; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.