rs121918306
Variant names:
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PP3_StrongPP5_Moderate
The NM_006946.4(SPTBN2):c.758T>C(p.Leu253Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).
Frequency
Genomes: not found (cov: 31)
Consequence
SPTBN2
NM_006946.4 missense
NM_006946.4 missense
Scores
16
2
1
Clinical Significance
Conservation
PhyloP100: 9.27
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]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 10 ACMG points.
PM1
In a region_of_interest Actin-binding (size 276) in uniprot entity SPTN2_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_006946.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.972
PP5
Variant 11-66713645-A-G is Pathogenic according to our data. Variant chr11-66713645-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 5275.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD3 genomes
Cov.:
31
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome Cov.: 31
GnomAD4 genome
Cov.:
31
Alfa
AF:
Hom.:
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not provided Pathogenic:1
Sep 15, 2021
Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing
- -
Spinocerebellar ataxia type 5 Pathogenic:1
Sep 15, 2010
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only
- -
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Pathogenic
D;D;.;.;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
.;D;.;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Pathogenic
H;H;.;H;.
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D;.;D;.
REVEL
Pathogenic
Sift
Pathogenic
D;D;.;D;.
Sift4G
Pathogenic
D;D;D;D;D
Polyphen
D;D;.;.;.
Vest4
MutPred
Gain of disorder (P = 0.0085);Gain of disorder (P = 0.0085);Gain of disorder (P = 0.0085);Gain of disorder (P = 0.0085);Gain of disorder (P = 0.0085);
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at