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GeneBe

6-3153870-T-A

Variant summary

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

The NM_001069.3(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
NM_001069.3 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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PP2
Missense variant where missense usually causes diseases, TUBB2A
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 GnomAdExome at 7 AD gene.

Transcripts

RefSeq

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

Ensembl

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