EOG89S8NF	GO:0003729	27/87	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]
EOG89S8NF	GO:0006376	27/87	mRNA splice site selection	biological_process	"Selection of a splice site by components of the assembling spliceosome." [GOC:krc, ISBN:0879695897]
EOG89S8NF	GO:0005685	27/87	U1 snRNP	cellular_component	"A ribonucleoprotein complex that contains small nuclear RNA U1." [GOC:krc, GOC:mah]
EOG89S8NF	GO:0071011	1/87	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]
EOG89S8NF	GO:0000398	1/87	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]