6-3153870-T-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 1P and 8B. PP2BP4_ModerateBP6_ModerateBS2

The ENST00000333628.4(TUBB2A):​c.1331A>T​(p.Glu444Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,614,014 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict 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. E444K) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 30)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

TUBB2A
ENST00000333628.4 missense

Scores

5
13

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.43
Variant links:
Genes affected
TUBB2A (HGNC:12412): (tubulin beta 2A class IIa) Microtubules, key participants in processes such as mitosis and intracellular transport, are composed of heterodimers of alpha- and beta-tubulins. The protein encoded by this gene is a beta-tubulin. Defects in this gene are associated with complex cortical dysplasia with other brain malformations-5. Two transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TUBB2A. . Gene score misZ 5.2633 (greater than the threshold 3.09). Trascript score misZ 6.0248 (greater than threshold 3.09). GenCC has associacion of gene with complex cortical dysplasia with other brain malformations 5, tubulinopathy.
BP4
Computational evidence support a benign effect (MetaRNN=0.2022743).
BP6
Variant 6-3153870-T-A is Benign according to our data. Variant chr6-3153870-T-A is described in ClinVar as [Benign]. Clinvar id is 1626943.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TUBB2ANM_001069.3 linkuse as main transcriptc.1331A>T p.Glu444Val missense_variant 4/4 ENST00000333628.4 NP_001060.1
TUBB2ANM_001310315.2 linkuse as main transcriptc.1076A>T p.Glu359Val missense_variant 4/4 NP_001297244.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TUBB2AENST00000333628.4 linkuse as main transcriptc.1331A>T p.Glu444Val missense_variant 4/41 NM_001069.3 ENSP00000369703 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152162
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000278
AC:
7
AN:
251468
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000202
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461852
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
727218
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152162
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
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
Bravo
AF:
0.0000264
ExAC
AF:
0.00000824
AC:
1

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), LabcorpAug 30, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.23
CADD
Benign
20
DANN
Benign
0.91
DEOGEN2
Benign
0.18
T
Eigen
Uncertain
0.22
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Uncertain
0.92
D
M_CAP
Uncertain
0.096
D
MetaRNN
Benign
0.20
T
MetaSVM
Benign
-0.59
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
0.98
D
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-0.66
N
REVEL
Benign
0.24
Sift4G
Benign
0.13
T
Polyphen
0.82
P
Vest4
0.23
MutPred
0.23
Loss of solvent accessibility (P = 0.0022);
MVP
0.49
ClinPred
0.27
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.41
gMVP
0.94

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: rs765549114; hg19: chr6-3154104; API