Variant 2-131478261-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 5P and 4B. PM2PP2PP3_ModerateBS2

The NM_080386.4(TUBA3D):c.101G>A(p.Gly34Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TUBA3D
NM_080386.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.78

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:

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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;

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.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.897

BS2

High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
TUBA3D	NM_080386.4 linkuse as main transcript	c.101G>A	p.Gly34Asp	missense_variant	2/5	ENST00000321253.7	NP_525125.2
MZT2A	XM_005263742.4 linkuse as main transcript	c.320-6079C>T		intron_variant			XP_005263799.2
MZT2A	XM_047445568.1 linkuse as main transcript	c.623-6079C>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.101G>A	p.Gly34Asp	missense_variant	2/5	1	NM_080386.4	ENSP00000326042	P1
MZT2A	ENST00000427024.5 linkuse as main transcript	c.279-6079C>T		intron_variant, NMD_transcript_variant		3		ENSP00000403353
MZT2A	ENST00000445782.2 linkuse as main transcript	n.331-6079C>T		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461708

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727160

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:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

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

Jun 02, 2024

The c.101G>A (p.G34D) alteration is located in exon 1 (coding exon 1) of the TUBA3D gene. This alteration results from a G to A substitution at nucleotide position 101, causing the glycine (G) at amino acid position 34 to be replaced by an aspartic acid (D). 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

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.010

CADD

Pathogenic

DANN

Uncertain

0.99

Eigen

Uncertain

0.67

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Uncertain

0.93

M_CAP

Benign

0.020

MetaRNN

Pathogenic

0.90

MetaSVM

Uncertain

0.56

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.89

PROVEAN

Uncertain

-4.1

REVEL

Uncertain

0.64

Sift4G

Pathogenic

0.0

Vest4

0.94

MutPred

0.72

Gain of relative solvent accessibility (P = 0.0082);

MVP

0.69

ClinPred

0.99

GERP RS

2.5

Varity_R

0.18

gMVP

0.63

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over