Aliases for TUBA1A Gene
External Ids for TUBA1A Gene
Previous GeneCards Identifiers for TUBA1A Gene
Microtubules of the eukaryotic cytoskeleton perform essential and diverse functions and are composed of a heterodimer of alpha and beta tubulins. The genes encoding these microtubule constituents belong to 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, which are highly conserved among species. This gene encodes alpha tubulin and is highly similar to the mouse and rat Tuba1 genes. Northern blot studies have shown that the gene expression is predominantly found in morphologically differentiated neurologic cells. This gene is one of three alpha-tubulin genes in a cluster on chromosome 12q. Mutations in this gene cause lissencephaly type 3 (LIS3) - a neurological condition characterized by microcephaly, intellectual disability, and early-onset epilepsy caused by defective neuronal migration. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2017]
GeneCards Summary for TUBA1A Gene
TUBA1A (Tubulin Alpha 1a) is a Protein Coding gene. Diseases associated with TUBA1A include Lissencephaly 3 and Lissencephaly With Cerebellar Hypoplasia. Among its related pathways are Development Slit-Robo signaling and Organelle biogenesis and maintenance. Gene Ontology (GO) annotations related to this gene include GTP binding and structural molecule activity. An important paralog of this gene is TUBA1B.
UniProtKB/Swiss-Prot for TUBA1A Gene
Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain.
Microtubules are cylindrical tubes of 20-25 nm in diameter. They are composed of protofilaments which are in turn composed of alpha- and beta-tubulin polymers. Each microtubule is polarized; at one end alpha-subunits are exposed (-) and at the other, beta-subunits are exposed (+).