EOG8F20J8 GO:0004298 24/88 threonine-type endopeptidase activity molecular_function "Catalysis of the hydrolysis of internal peptide bonds in a polypeptide chain by a mechanism in which the hydroxyl group of a threonine residue at the active center acts as a nucleophile." [GOC:mah, http://merops.sanger.ac.uk/about/glossary.htm#CATTYPE, http://merops.sanger.ac.uk/about/glossary.htm#ENDOPEPTIDASE] EOG8F20J8 GO:0005634 23/88 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] EOG8F20J8 GO:0005737 23/88 cytoplasm cellular_component "All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures." [ISBN:0198547684] EOG8F20J8 GO:0019773 23/88 proteasome core complex, alpha-subunit complex cellular_component "The proteasome core subcomplex that constitutes the two outer rings of the proteasome core complex. An example of this component is found in Mus musculus." [GOC:jl, GOC:mtg_sensu, GOC:rb, PMID:10854779] EOG8F20J8 GO:0006511 22/88 ubiquitin-dependent protein catabolic process biological_process "The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein." [GOC:go_curators] EOG8F20J8 GO:0005839 2/88 proteasome core complex cellular_component "A multisubunit barrel shaped endoprotease complex, which is the core of the proteasome complex." [GOC:rb, PMID:10806206] EOG8F20J8 GO:0007052 1/88 mitotic spindle organization biological_process "A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the microtubule spindle during a mitotic cell cycle." [GOC:mah] EOG8F20J8 GO:0008283 1/88 cell proliferation biological_process "The multiplication or reproduction of cells, resulting in the expansion of a cell population." [GOC:mah, GOC:mb] EOG8F20J8 GO:0005515 1/88 protein binding molecular_function "Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules)." [GOC:go_curators] EOG8F20J8 GO:0000022 1/88 mitotic spindle elongation biological_process "The cell cycle process in which the distance is lengthened between poles of the spindle. Spindle elongation begins during prophase and ends during anaphase B." [GOC:mtg_cell_cycle, GOC:vw] EOG8F20J8 GO:0043161 1/88 proteasome-mediated ubiquitin-dependent protein catabolic process biological_process "The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome." [GOC:go_curators] EOG8F20J8 GO:0009987 1/88 cellular process biological_process "Any process that is carried out at the cellular level, but not necessarily restricted to a single cell. For example, cell communication occurs among more than one cell, but occurs at the cellular level." [GOC:go_curators, GOC:isa_complete] EOG8F20J8 GO:0051603 1/88 proteolysis involved in cellular protein catabolic process biological_process "The hydrolysis of a peptide bond or bonds within a protein as part of the chemical reactions and pathways resulting in the breakdown of a protein by individual cells." [GOC:ai, GOC:dph, GOC:tb]