EOG89PDCT GO:0000166 33/105 nucleotide binding molecular_function "Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose." [GOC:mah, ISBN:0198547684] EOG89PDCT GO:0005634 27/105 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] EOG89PDCT GO:0003723 27/105 RNA binding molecular_function "Interacting selectively and non-covalently with an RNA molecule or a portion thereof." [GOC:mah] EOG89PDCT GO:0006397 26/105 mRNA processing biological_process "Any process involved in the conversion of a primary mRNA transcript into one or more mature mRNA(s) prior to translation into polypeptide." [GOC:mah] EOG89PDCT GO:0003676 5/105 nucleic acid binding molecular_function "Interacting selectively and non-covalently with any nucleic acid." [GOC:jl] EOG89PDCT GO:0030529 3/105 ribonucleoprotein complex cellular_component "A macromolecular complex containing both protein and RNA molecules." [GOC:krc] EOG89PDCT GO:0019013 3/105 viral nucleocapsid cellular_component "The complete protein-nucleic acid complex that is the packaged form of the genome in a virus particle." [ISBN:0781702534] EOG89PDCT GO:0007052 1/105 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] EOG89PDCT GO:0000398 1/105 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] EOG89PDCT GO:0008187 1/105 poly-pyrimidine tract binding molecular_function "Interacting selectively and non-covalently with any stretch of pyrimidines (cytosine or uracil) in an RNA molecule." [GOC:jl] EOG89PDCT GO:0003729 1/105 mRNA binding molecular_function "Interacting selectively and non-covalently with messenger RNA (mRNA), an intermediate molecule between DNA and protein. mRNA includes UTR and coding sequences, but does not contain introns." [GOC:kmv, SO:0000234] EOG89PDCT GO:0005681 1/105 spliceosomal complex cellular_component "Any of a series of ribonucleoprotein complexes that contain snRNA(s) and small nuclear ribonucleoproteins (snRNPs), and are formed sequentially during the spliceosomal splicing of one or more substrate RNAs, and which also contain the RNA substrate(s) from the initial target RNAs of splicing, the splicing intermediate RNA(s), to the final RNA products. During cis-splicing, the initial target RNA is a single, contiguous RNA transcript, whether mRNA, snoRNA, etc., and the released products are a spliced RNA and an excised intron, generally as a lariat structure. During trans-splicing, there are two initial substrate RNAs, the spliced leader RNA and a pre-mRNA." [GOC:editors, GOC:mah, ISBN:0198547684, PMID:19239890] EOG89PDCT GO:0008380 1/105 RNA splicing biological_process "The process of removing sections of the primary RNA transcript to remove sequences not present in the mature form of the RNA and joining the remaining sections to form the mature form of the RNA." [GOC:krc, GOC:mah] EOG89PDCT GO:0022008 1/105 neurogenesis biological_process "Generation of cells within the nervous system." [GO_REF:0000021, GOC:cls, GOC:curators, GOC:dgh, GOC:dph, GOC:jid, GOC:mtg_15jun06] EOG89PDCT GO:0000381 1/105 regulation of alternative mRNA splicing, via spliceosome biological_process "Any process that modulates the frequency, rate or extent of alternative splicing of nuclear mRNAs." [GOC:krc] EOG89PDCT GO:0005515 1/105 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] EOG89PDCT GO:0051168 1/105 nuclear export biological_process "The directed movement of substances out of the nucleus." [GOC:ai] EOG89PDCT GO:0005686 1/105 U2 snRNP cellular_component "A ribonucleoprotein complex that contains small nuclear RNA U2." [GOC:krc, GOC:mah] EOG89PDCT GO:0046833 1/105 positive regulation of RNA export from nucleus biological_process "Any process that activates or increases the frequency, rate or extent of directed movement of RNA from the nucleus into the cytoplasm." [GOC:bf] EOG89PDCT GO:0071011 1/105 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]