6-3153871-C-T

Variant summary

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

The ENST00000333628.4(TUBB2A):​c.1330G>A​(p.Glu444Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,614,116 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 Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E444V) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 30)
Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

TUBB2A
ENST00000333628.4 missense

Scores

8
10

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.95
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=0.16873515).
BP6
Variant 6-3153871-C-T is Benign according to our data. Variant chr6-3153871-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1370198.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TUBB2ANM_001069.3 linkuse as main transcriptc.1330G>A p.Glu444Lys missense_variant 4/4 ENST00000333628.4 NP_001060.1
TUBB2ANM_001310315.2 linkuse as main transcriptc.1075G>A p.Glu359Lys 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.1330G>A p.Glu444Lys missense_variant 4/41 NM_001069.3 ENSP00000369703 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152150
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251462
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.000298
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000821
AC:
12
AN:
1461848
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727216
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.000153
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152268
Hom.:
0
Cov.:
30
AF XY:
0.0000269
AC XY:
2
AN XY:
74464
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000247
AC:
3

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 07, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Uncertain
0.031
T
BayesDel_noAF
Benign
-0.18
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.22
T
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.061
D
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-0.57
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
0.99
D
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-0.59
N
REVEL
Benign
0.25
Sift4G
Uncertain
0.036
D
Polyphen
0.83
P
Vest4
0.31
MVP
0.62
ClinPred
0.39
T
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
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: rs202207883; hg19: chr6-3154105; COSMIC: COSV61319193; COSMIC: COSV61319193; API