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. This gene encodes an alpha tubulin that highly conserved among species. A missense mutation in this gene has been potentially linked to microlissencephaly and global developmental delay. [provided by RefSeq, Jul 2016]

OMIMResearchGenerating clinical summary…
DNmechanismLOEUF 1.36
Clinical SummaryTUBA3E
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.36LOEUF
pLI 0.000
Z-score 0.51
OE 0.86 (0.561.36)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
-0.30Z-score
OE missense 1.05 (0.951.16)
299 obs / 284.9 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?0.86 (0.561.36)
00.351.4
Missense OE?1.05 (0.951.16)
00.61.4
Synonymous OE?0.98
01.21.6
LoF obs/exp: 13 / 15.1Missense obs/exp: 299 / 284.9Syn Z: 0.14

This gene — mechanism propensity

DN
0.78top 25%
GOF
0.5071th %ile
LOF
0.3646th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

TUBA3E · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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