EOG8H1DBB GO:0019013 4/88 viral nucleocapsid cellular_component "The complete protein-nucleic acid complex that is the packaged form of the genome in a virus particle." [ISBN:0781702534] EOG8H1DBB GO:0030529 4/88 ribonucleoprotein complex cellular_component "A macromolecular complex containing both protein and RNA molecules." [GOC:krc] EOG8H1DBB GO:0005686 1/88 U2 snRNP cellular_component "A ribonucleoprotein complex that contains small nuclear RNA U2." [GOC:krc, GOC:mah] EOG8H1DBB GO:0003723 1/88 RNA binding molecular_function "Interacting selectively and non-covalently with an RNA molecule or a portion thereof." [GOC:mah] EOG8H1DBB GO:0071011 1/88 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] EOG8H1DBB GO:0007067 1/88 mitotic nuclear division biological_process "A cell cycle process comprising the steps by which the nucleus of a eukaryotic cell divides; the process involves condensation of chromosomal DNA into a highly compacted form. Canonically, mitosis produces two daughter nuclei whose chromosome complement is identical to that of the mother cell." [GOC:dph, GOC:ma, GOC:mah, ISBN:0198547684] EOG8H1DBB 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] EOG8H1DBB GO:0071013 1/88 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] EOG8H1DBB GO:0000398 1/88 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] EOG8H1DBB GO:0030532 1/88 small nuclear ribonucleoprotein complex cellular_component "A complex composed of RNA of the small nuclear RNA (snRNA) class and protein, found in the nucleus of a eukaryotic cell. These are typically named after the snRNA(s) they contain, e.g. U1 snRNP or U4/U6 snRNP. Many, but not all, of these complexes are involved in splicing of nuclear mRNAs." [GOC:krc, GOC:mah, ISBN:0879695897]