11-66685992-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BP4_ModerateBP6_Moderate

The NM_006946.4(SPTBN2):​c.7052G>A​(p.Arg2351Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000155 in 1,613,772 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 Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2351W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

SPTBN2
NM_006946.4 missense

Scores

1
6
12

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.25
Variant links:
Genes affected
SPTBN2 (HGNC:11276): (spectrin beta, non-erythrocytic 2) Spectrins are principle components of a cell's membrane-cytoskeleton and are composed of two alpha and two beta spectrin subunits. The protein encoded by this gene (SPTBN2), is called spectrin beta non-erythrocytic 2 or beta-III spectrin. It is related to, but distinct from, the beta-II spectrin gene which is also known as spectrin beta non-erythrocytic 1 (SPTBN1). SPTBN2 regulates the glutamate signaling pathway by stabilizing the glutamate transporter EAAT4 at the surface of the plasma membrane. Mutations in this gene cause a form of spinocerebellar ataxia, SCA5, that is characterized by neurodegeneration, progressive locomotor incoordination, dysarthria, and uncoordinated eye movements. [provided by RefSeq, Dec 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SPTBN2. . Gene score misZ 2.6349 (greater than the threshold 3.09). Trascript score misZ 4.499 (greater than threshold 3.09). GenCC has associacion of gene with autosomal recessive spinocerebellar ataxia 14, spinocerebellar ataxia type 5.
BP4
Computational evidence support a benign effect (MetaRNN=0.11351031).
BP6
Variant 11-66685992-C-T is Benign according to our data. Variant chr11-66685992-C-T is described in ClinVar as [Benign]. Clinvar id is 1505861.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SPTBN2NM_006946.4 linkuse as main transcriptc.7052G>A p.Arg2351Gln missense_variant 38/38 ENST00000533211.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SPTBN2ENST00000533211.6 linkuse as main transcriptc.7052G>A p.Arg2351Gln missense_variant 38/385 NM_006946.4 P1O15020-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152166
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
GnomAD3 exomes
AF:
0.0000320
AC:
8
AN:
249656
Hom.:
0
AF XY:
0.0000370
AC XY:
5
AN XY:
135302
show subpopulations
Gnomad AFR exome
AF:
0.000436
Gnomad AMR exome
AF:
0.00
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:
0.00000890
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461488
Hom.:
0
Cov.:
31
AF XY:
0.0000165
AC XY:
12
AN XY:
727062
show subpopulations
Gnomad4 AFR exome
AF:
0.000239
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000189
Gnomad4 NFE exome
AF:
0.00000809
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152284
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.0000963
Gnomad4 AMR
AF:
0.0000654
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:
0.00
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.0000718
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000494
AC:
6

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 07, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.41
T;T;.;.
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.97
.;D;.;D
M_CAP
Benign
0.073
D
MetaRNN
Benign
0.11
T;T;T;T
MetaSVM
Benign
-0.41
T
MutationAssessor
Benign
0.69
N;N;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
-1.3
N;N;.;.
REVEL
Benign
0.26
Sift
Benign
0.17
T;T;.;.
Sift4G
Benign
0.13
T;T;T;T
Polyphen
1.0
D;D;.;.
Vest4
0.37
MVP
0.66
MPC
1.1
ClinPred
0.17
T
GERP RS
5.6
Varity_R
0.25
gMVP
0.51

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: rs367554726; hg19: chr11-66453463; API