EOG8JT2MT	GO:0000166	26/93	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]
EOG8JT2MT	GO:0046872	26/93	metal ion binding	molecular_function	"Interacting selectively and non-covalently with any metal ion." [GOC:ai]
EOG8JT2MT	GO:0005634	26/93	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]
EOG8JT2MT	GO:0003723	25/93	RNA binding	molecular_function	"Interacting selectively and non-covalently with an RNA molecule or a portion thereof." [GOC:mah]
EOG8JT2MT	GO:0005686	1/93	U2 snRNP	cellular_component	"A ribonucleoprotein complex that contains small nuclear RNA U2." [GOC:krc, GOC:mah]
EOG8JT2MT	GO:0003729	1/93	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]
EOG8JT2MT	GO:0008380	1/93	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]
EOG8JT2MT	GO:0005681	1/93	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]
EOG8JT2MT	GO:0000381	1/93	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]
EOG8JT2MT	GO:0071011	1/93	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]
EOG8JT2MT	GO:0007052	1/93	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]
EOG8JT2MT	GO:0000398	1/93	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]
EOG8JT2MT	GO:0008187	1/93	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]