Variant 2-131480361-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2

The ENST00000321253.7(TUBA3D):c.668C>A(p.Thr223Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000087 in 1,609,660 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

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

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

TUBA3D
ENST00000321253.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.80

Variant links:

Genes affected

TUBA3D (HGNC:24071): (tubulin alpha 3d) This gene encodes a member of the alpha tubulin family. Tubulin is a major component of microtubules, which are composed of alpha- and beta-tubulin heterodimers and microtubule-associated proteins in the cytoskeleton. Microtubules maintain cellular structure, function in intracellular transport, and play a role in spindle formation during mitosis. [provided by RefSeq, Oct 2011]

TUBA3D links:

MZT2A (HGNC:33187): (mitotic spindle organizing protein 2A) Located in centrosome; cytosol; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

MZT2A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), TUBA3D. . Gene score misZ 1.5331 (greater than the threshold 3.09). Trascript score misZ 3.5821 (greater than threshold 3.09). GenCC has associacion of gene with keratoconus 9.

BS2

High AC in GnomAdExome4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
TUBA3D	NM_080386.4 linkuse as main transcript	c.668C>A	p.Thr223Lys	missense_variant	4/5	ENST00000321253.7	NP_525125.2
MZT2A	XM_005263742.4 linkuse as main transcript	c.320-8179G>T		intron_variant			XP_005263799.2
MZT2A	XM_047445568.1 linkuse as main transcript	c.623-8179G>T		intron_variant			XP_047301524.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
TUBA3D	ENST00000321253.7 linkuse as main transcript	c.668C>A	p.Thr223Lys	missense_variant	4/5	1	NM_080386.4	ENSP00000326042	P1
MZT2A	ENST00000427024.5 linkuse as main transcript	c.279-8179G>T		intron_variant, NMD_transcript_variant		3		ENSP00000403353
MZT2A	ENST00000445782.2 linkuse as main transcript	n.331-8179G>T		intron_variant, non_coding_transcript_variant		2
TUBA3D	ENST00000409047.2 linkuse as main transcript			downstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.0000135

AC:

AN:

148186

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:

0.000385

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:

0.0000399

AC:

AN:

250880

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135688

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000544

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:

0.00000821

AC:

AN:

1461474

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727050

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000302

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000135

AC:

AN:

148186

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

72380

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000385

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:

0.0000412

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

Feb 27, 2023

The c.668C>A (p.T223K) alteration is located in exon 1 (coding exon 1) of the TUBA3D gene. This alteration results from a C to A substitution at nucleotide position 668, causing the threonine (T) at amino acid position 223 to be replaced by a lysine (K). 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

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.18

CADD

Pathogenic

DANN

Benign

0.73

Eigen

Benign

-0.27

Eigen_PC

Benign

-0.26

FATHMM_MKL

Uncertain

0.87

M_CAP

Benign

0.016

MetaRNN

Uncertain

0.45

MetaSVM

Benign

-0.54

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-2.8

REVEL

Uncertain

0.40

Sift4G

Benign

0.072

Vest4

0.76

MutPred

0.47

Gain of methylation at T223 (P = 0.0269);

MVP

0.42

ClinPred

0.39

GERP RS

2.2

Varity_R

0.078

gMVP

0.76

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.

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