| GOID Link to GO |
Functional Category | Description | Protein Count link to protein list |
|---|---|---|---|
| GO:0000398 | mRNA splicing, via spliceosome | 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. | 58 |
| GO:0006370 | 7-methylguanosine mRNA capping | Addition of the 7-methylguanosine cap to the 5' end of a nascent messenger RNA transcript. | 25 |
| GO:0006378 | mRNA polyadenylation | The enzymatic addition of a sequence of 40-200 adenylyl residues at the 3' end of a eukaryotic mRNA primary transcript. | 17 |
| GO:0045292 | mRNA cis splicing, via spliceosome | The joining together, after removal of an intervening sequence composed of one or more introns, of two segments of the same RNA molecule via spliceosomal catalysis to produce an mRNA composed only of exon sequences that all came from the same primary transcript. | 17 |
| GO:0031124 | mRNA 3'-end processing | Any process involved in forming the mature 3' end of an mRNA molecule. | 15 |
| GO:0000289 | nuclear-transcribed mRNA poly(A) tail shortening | Shortening of the poly(A) tail of a nuclear-transcribed mRNA from full length to an oligo(A) length. | 14 |
| GO:0000380 | alternative mRNA splicing, via spliceosome | The process of generating multiple mRNA molecules from a given set of exons by differential use of exons from the primary transcript(s) to form multiple mature mRNAs that vary in their exon composition. | 14 |
| GO:0000387 | spliceosomal snRNP assembly | The aggregation, arrangement and bonding together of one or more snRNA and multiple protein components to form a ribonucleoprotein complex that is involved in formation of the spliceosome. | 14 |
| GO:0000245 | spliceosomal complex assembly | The aggregation, arrangement and bonding together of a spliceosomal complex, a ribonucleoprotein apparatus that catalyzes nuclear mRNA splicing via transesterification reactions. | 11 |
| GO:0006376 | mRNA splice site selection | Selection of a splice site by components of the assembling spliceosome. | 8 |
| GO:0006379 | mRNA cleavage | Any process in which a pre-mRNA or mRNA molecule is cleaved at specific sites or in a regulated manner. | 7 |
| GO:0006398 | histone mRNA 3'-end processing | Any process involved in forming the mature 3' end of a histone mRNA molecule. | 7 |
| GO:0000349 | generation of catalytic spliceosome for first transesterification step | Formation of a catalytic spliceosome complex ready to perform the first splicing reaction. This occurs by an ATP-dependent conformational change of the pre-catalytic spliceosome. | 6 |
| GO:0000395 | mRNA 5'-splice site recognition | Recognition of the intron 5'-splice site by components of the assembling spliceosome. | 3 |
| GO:0000389 | mRNA 3'-splice site recognition | Recognition of the intron 3'-splice site by components of the assembling U2- or U12-type spliceosome. | 3 |
| GO:0070054 | mRNA splicing, via endonucleolytic cleavage and ligation | Splicing of mRNA substrates via recognition of the folded RNA structure that brings the 5' and 3' splice sites into proximity and cleavage of the RNA at both the 3' and 5' splice sites by an endonucleolytic mechanism, followed by ligation of the exons. | 2 |
| GO:0000244 | assembly of spliceosomal tri-snRNP | The formation of a tri-snRNP complex containing U4 and U6 (or U4atac and U6atac) snRNAs and U5 snRNAs and associated proteins. This includes reannealing of U4 and U6 (or U4atac and U6atac) snRNAs released from previous rounds of splicing to reform the U4/U6 snRNP (or U4atac/U6atac snRNP) as well as the subsequent association of the U5 snRNP with the U4/U6 snRNP (or U4atac/U6atac snRNP) to form a tri-snRNP that is ready to reassemble into another spliceosome complex. | 2 |
| GO:0097222 | mitochondrial mRNA polyadenylation | The enzymatic addition of a sequence of 40-60 adenylyl residues at the 3' end of a eukaryotic mitochondrial mRNA primary transcript. Mitochondria contain both stabilizing and destabilizing poly(A) tails. | 1 |
| GO:1900018 | phosphorylation of RNA polymerase II C-terminal domain serine 5 residues involved in recruitment of mRNA capping enzyme to RNA polymerase II holoenzyme complex | Any phosphorylation of RNA polymerase II C-terminal domain serine 5 residues that is involved in recruitment of mRNA capping enzyme to RNA polymerase II holoenzyme complex. | 1 |
| GO:0000393 | spliceosomal conformational changes to generate catalytic conformation | Structural rearrangements of the spliceosome complex, containing RNA to be spliced, to generate a catalytic conformation. | 1 |
| GO:0000350 | generation of catalytic spliceosome for second transesterification step | Conformational rearrangement of the spliceosomal complex containing the RNA products from the 1st step of splicing to form the catalytic site for the second step of splicing. | 1 |
| GO:0035279 | mRNA cleavage involved in gene silencing by miRNA | The process in which microRNAs (miRNAs) direct the cleavage of target mRNAs. Once incorporated into a RNA-induced silencing complex (RISC), a miRNA will typically direct cleavage by base pairing with near-perfect complementarity to the target mRNA. Many plant miRNAs downregulate gene expression through this mechanism. | 1 |