EOG89CSQ1 GO:0008537 34/99 proteasome activator complex cellular_component "A multisubunit complex that activates the hydrolysis of small nonubiquitinated peptides by binding to the proteasome core complex." [GOC:rb] EOG89CSQ1 GO:0005703 1/99 polytene chromosome puff cellular_component "A swelling at a site along the length of a polytene chromosome, thought to be the site of active transcription." [GOC:bf, ISBN:0120649012] EOG89CSQ1 GO:0071011 1/99 precatalytic spliceosome cellular_component "A spliceosomal complex that is formed by the recruitment of a preassembled U5-containing tri-snRNP to the prespliceosome. Although all 5 snRNPs are present, the precatalytic spliceosome is catalytically inactive. The precatalytic spliceosome includes many proteins in addition to those found in the associated snRNPs." [GOC:ab, GOC:krc, GOC:mah, PMID:18322460, PMID:19239890] EOG89CSQ1 GO:0005705 1/99 polytene chromosome interband cellular_component "A stretch of less tightly packed chromatin along the polytene chromosome, found between bands." [GOC:bf, PMID:11361342] EOG89CSQ1 GO:0010950 1/99 positive regulation of endopeptidase activity biological_process "Any process that increases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins." [GOC:dph, GOC:tb] EOG89CSQ1 GO:0004866 1/99 endopeptidase inhibitor activity molecular_function "Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides." [GOC:jl] EOG89CSQ1 GO:2000045 1/99 regulation of G1/S transition of mitotic cell cycle biological_process "Any cell cycle regulatory process that controls the commitment of a cell from G1 to S phase of the mitotic cell cycle." [GOC:mtg_cell_cycle] EOG89CSQ1 GO:0061133 1/99 endopeptidase activator activity molecular_function "Increases the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides." [GOC:dph, GOC:tb] EOG89CSQ1 GO:0010951 1/99 negative regulation of endopeptidase activity biological_process "Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins." [GOC:dph, GOC:tb] EOG89CSQ1 GO:0061136 1/99 regulation of proteasomal protein catabolic process biological_process "Any process that modulates the rate, frequency, or extent of the chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds that is mediated by the proteasome." [GOC:dph, GOC:tb] EOG89CSQ1 GO:0071013 1/99 catalytic step 2 spliceosome cellular_component "A spliceosomal complex that contains three snRNPs, including U5, bound to a splicing intermediate in which the first catalytic cleavage of the 5' splice site has occurred. The precise subunit composition differs significantly from that of the catalytic step 1, or activated, spliceosome, and includes many proteins in addition to those found in the associated snRNPs." [GOC:ab, GOC:krc, GOC:mah, ISBN:0879695897, ISBN:0879697393, PMID:18322460, PMID:19239890] EOG89CSQ1 GO:0005634 1/99 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] EOG89CSQ1 GO:0000398 1/99 mRNA splicing, via spliceosome biological_process "The joining together of exons from one or more primary transcripts of messenger RNA (mRNA) and the excision of intron sequences, via a spliceosomal mechanism, so that mRNA consisting only of the joined exons is produced." [GOC:krc, ISBN:0198506732, ISBN:0879695897]