EOG8T1M37 GO:0005829 11/94 cytosol cellular_component "The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes." [GOC:hjd, GOC:jl] EOG8T1M37 GO:0005634 11/94 nucleus cellular_component "A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent." [GOC:go_curators] EOG8T1M37 GO:0005875 11/94 microtubule associated complex cellular_component "Any multimeric complex connected to a microtubule." [GOC:jl] EOG8T1M37 GO:0005200 11/94 structural constituent of cytoskeleton molecular_function "The action of a molecule that contributes to the structural integrity of a cytoskeletal structure." [GOC:mah] EOG8T1M37 GO:0008017 11/94 microtubule binding molecular_function "Interacting selectively and non-covalently with microtubules, filaments composed of tubulin monomers." [GOC:krc] EOG8T1M37 GO:0005819 11/94 spindle cellular_component "The array of microtubules and associated molecules that forms between opposite poles of a eukaryotic cell during mitosis or meiosis and serves to move the duplicated chromosomes apart." [ISBN:0198547684] EOG8T1M37 GO:0005874 11/94 microtubule cellular_component "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." [ISBN:0879693568] EOG8T1M37 GO:0031116 11/94 positive regulation of microtubule polymerization biological_process "Any process that activates or increases the frequency, rate or extent of microtubule polymerization." [GOC:mah]