Entrez Summary: This gene encodes a class III member of the beta tubulin protein family. Beta tubulins are one of two core protein families (alpha and beta tubulins) that heterodimerize and assemble to form microtubules. This protein is primarily expressed in neurons and may be involved in neurogenesis and axon guidance and maintenance. Mutations in this gene are the cause of congenital fibrosis of the extraocular muscles type 3. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 6. [provided by RefSeq, Oct 2010].
UniProt Summary: 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. TUBB3 plays a critical role in proper axon guidance and mantainance. {ECO:0000269|PubMed:20074521}.
Pfam DomainsGO Terms
Pfam Domains
Tubulin C
Misat Myo SegII
Tubulin
GO Terms
netrin receptor binding
dorsal root ganglion development
netrin-activated signaling pathway
ganglion development
filopodium
structural constituent of cytoskeleton
growth cone
lamellipodium
axon guidance
neuron projection guidance
axon
microtubule
GTPase activity
axonogenesis
GTP binding
axon development
dendrite
cell morphogenesis involved in neuron differentiation