Tubulin polymerisation-promoting protein family member 3 (TPPP3, also known as p20) belongs to the TPPP family []. It is an intrinsically unstructured protein that induces tubulin polymerisation. It attaches to microtubules (MTs) causing MT bundling both in vitro and in vivo []. It is involved in developmental processes of the musculoskeletal system [].