rs587784507
Variant summary
Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PP2PP3_Strong
The NM_006086.4(TUBB3):c.740A>G(p.Asn247Ser) 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. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. N247N) has been classified as Likely benign.
Frequency
Genomes: not found (cov: 33)
Consequence
TUBB3
NM_006086.4 missense
NM_006086.4 missense
Scores
8
7
2
Clinical Significance
Conservation
PhyloP100: 9.16
Genes affected
TUBB3 (HGNC:20772): (tubulin beta 3 class III) This gene encodes a class III member of the beta tubulin protein family. Beta tubulins are one of two core protein families (alpha and beta tubulins) that heterodimerize and assemble to form microtubules. This protein is primarily expressed in neurons and may be involved in neurogenesis and axon guidance and maintenance. Mutations in this gene are the cause of congenital fibrosis of the extraocular muscles type 3. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 6. [provided by RefSeq, Oct 2010]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 9 ACMG points.
PM1
?
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_006086.4
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, TUBB3
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.968
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TUBB3 | NM_006086.4 | c.740A>G | p.Asn247Ser | missense_variant | 4/4 | ENST00000315491.12 | |
TUBB3 | NM_001197181.2 | c.524A>G | p.Asn175Ser | missense_variant | 4/4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TUBB3 | ENST00000315491.12 | c.740A>G | p.Asn247Ser | missense_variant | 4/4 | 1 | NM_006086.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 genomes
?
Cov.:
33
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 33
GnomAD4 genome
?
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Complex cortical dysplasia with other brain malformations 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | May 29, 2013 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Uncertain
Cadd
Benign
Dann
Benign
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Uncertain
D
MutationTaster
Benign
D;D;D;D
PrimateAI
Pathogenic
D
PROVEAN
Pathogenic
D;D;D;D
REVEL
Pathogenic
Sift
Pathogenic
D;.;.;.
Sift4G
Uncertain
D;D;D;D
Polyphen
0.92
.;.;.;P
Vest4
MutPred
0.86
.;.;.;Gain of methylation at K252 (P = 0.1087);
MVP
MPC
1.8
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