Assertion: microtubule's protofilament | /r/CapableOf | associate to form 24 wide hollow cylinder
Facets:
value: laterally
type: MANNER
Source sentences:
text: A single microtubule is comprised of 10–15 protofilaments (usually 13 in mammalian cells) that associate laterally to form a 24 nm wide hollow cylinder (see the figure)13,186,187,188.