id: GO:0005874
name: microtubule
namespace: cellular_component
type: go
obsolete: False

Description: Any of the long, generally straight, hollow tubes of internal diameter 12-15 nm and external diameter 24 nm found in a wide variety of eukaryotic cells; each consists (usually) of 13 protofilaments of polymeric tubulin, staggered in such a manner that the tubulin monomers are arranged in a helical pattern on the microtubular surface, and with the alpha/beta axes of the tubulin subunits parallel to the long axis of the tubule; exist in equilibrium with pool of tubulin monomers and can be rapidly assembled or disassembled in response to physiological stimuli; concerned with force generation, e.g. in the spindle.

Child Functions

GO:0005876spindle microtubule
GO:0005879axonemal microtubule
GO:0005880nuclear microtubule
GO:0005881cytoplasmic microtubule
GO:0020025subpellicular microtubule
GO:0033289intraconoid microtubule

Parent Functions

GO:0043234protein complex
GO:0044430cytoskeletal part