9g0r
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Xenopus laevis undecorated microtubule - 15 protofilament, 4-start helix
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Structural highlights
FunctionTBB4_XENLA Tubulin is the major constituent of microtubules, a cylinder consisting of laterally associated linear protofilaments composed of alpha- and beta-tubulin heterodimers. Microtubules grow by the addition of GTP-tubulin dimers to the microtubule end, where a stabilizing cap forms. Below the cap, tubulin dimers are in GDP-bound state, owing to GTPase activity of alpha-tubulin. Contents | ||||||||||||||||||||
This page was last modified 06:21, 15 January 2025.