Variant chr13-19177606-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_006001.3(TUBA3C):c.377C>T(p.Ala126Val) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000403 in 1,562,606 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

TUBA3C
NM_006001.3 missense, splice_region

Scores

Splicing: ADA: 0.0001614

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.39

Variant links:

Genes affected

TUBA3C (HGNC:12408): (tubulin alpha 3c) Microtubules of the eukaryotic cytoskeleton perform essential and diverse functions and are composed of a heterodimer of alpha and beta tubulin. The genes encoding these microtubule constituents are part of the tubulin superfamily, which is composed of six distinct families. Genes from the alpha, beta and gamma tubulin families are found in all eukaryotes. The alpha and beta tubulins represent the major components of microtubules, while gamma tubulin plays a critical role in the nucleation of microtubule assembly. There are multiple alpha and beta tubulin genes and they are highly conserved among and between species. This gene is an alpha tubulin gene that encodes a protein 99% identical to the mouse testis-specific Tuba3 and Tuba7 gene products. This gene is located in the 13q11 region, which is associated with the genetic diseases Clouston hidrotic ectodermal dysplasia and Kabuki syndrome. [provided by RefSeq, Jul 2008]

TUBA3C links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3711511).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TUBA3C	NM_006001.3 linkuse as main transcript	c.377C>T	p.Ala126Val	missense_variant, splice_region_variant	4/5	ENST00000400113.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TUBA3C	ENST00000400113.8 linkuse as main transcript	c.377C>T	p.Ala126Val	missense_variant, splice_region_variant	4/5	5	NM_006001.3	P1	P0DPH7-1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152040

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000209

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000528

AC:

AN:

208388

Hom.:

AF XY:

0.0000360

AC XY:

AN XY:

111094

show subpopulations

Gnomad AFR exome

AF:

0.0000634

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000488

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000410

Gnomad OTH exome

AF:

0.000203

GnomAD4 exome

AF:

0.0000432

AC:

AN:

1410566

Hom.:

Cov.:

AF XY:

0.0000402

AC XY:

AN XY:

696370

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000160

Gnomad4 ASJ exome

AF:

0.0000442

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000519

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000451

Gnomad4 OTH exome

AF:

0.0000172

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152040

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74240

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000209

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000264

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000495

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 01, 2024

The c.377C>T (p.A126V) alteration is located in exon 4 (coding exon 4) of the TUBA3C gene. This alteration results from a C to T substitution at nucleotide position 377, causing the alanine (A) at amino acid position 126 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.43

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.35

CADD

Pathogenic

DANN

Benign

0.74

Eigen

Uncertain

0.52

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.70

T;T

M_CAP

Benign

0.0047

MetaRNN

Benign

0.37

T;T

MetaSVM

Benign

-0.62

MutationAssessor

Benign

1.8

L;L

MutationTaster

Benign

0.98

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-2.3

N;.

REVEL

Benign

0.24

Sift4G

Benign

0.21

T;T

Vest4

0.11

MVP

0.72

MPC

0.79

ClinPred

0.26

GERP RS

0.27

Varity_R

0.30

gMVP

0.61

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00016

dbscSNV1_RF

Benign

0.0020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over