Tubb2b is a symbol for the gene, Tubulin beta 2B class IIb, in humans. Other names include: Tubulin beta-2B chain; class IIb beta-tubulin; PMGYSA; bA506K6.1; tubulin, beta 2B class IIb. The encoded protein has an amino acid length of 445 and a mass of 50.0 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.