| Chain | GOid | namespace | contents |
| A | 0000243 | cellular_component | commitment complex |
| A | 0000245 | biological_process | spliceosomal complex assembly |
| A | 0000387 | biological_process | spliceosomal snRNP assembly |
| A | 0000398 | biological_process | mRNA splicing, via spliceosome |
| A | 0003723 | molecular_function | RNA binding |
| A | 0005515 | molecular_function | protein binding |
| A | 0005634 | cellular_component | nucleus |
| A | 0005654 | cellular_component | nucleoplasm |
| A | 0005681 | cellular_component | spliceosomal complex |
| A | 0005682 | cellular_component | U5 snRNP |
| A | 0005684 | cellular_component | U2-type spliceosomal complex |
| A | 0005685 | cellular_component | U1 snRNP |
| A | 0005686 | cellular_component | U2 snRNP |
| A | 0005687 | cellular_component | U4 snRNP |
| A | 0005689 | cellular_component | U12-type spliceosomal complex |
| A | 0005737 | cellular_component | cytoplasm |
| A | 0005829 | cellular_component | cytosol |
| A | 0006396 | biological_process | RNA processing |
| A | 0006397 | biological_process | mRNA processing |
| A | 0008380 | biological_process | RNA splicing |
| A | 0030532 | cellular_component | small nuclear ribonucleoprotein complex |
| A | 0034709 | cellular_component | methylosome |
| A | 0034715 | cellular_component | pICln-Sm protein complex |
| A | 0034719 | cellular_component | SMN-Sm protein complex |
| A | 0036261 | biological_process | 7-methylguanosine cap hypermethylation |
| A | 0043229 | cellular_component | intracellular organelle |
| A | 0046540 | cellular_component | U4/U6 x U5 tri-snRNP complex |
| A | 0071005 | cellular_component | U2-type precatalytic spliceosome |
| A | 0071007 | cellular_component | U2-type catalytic step 2 spliceosome |
| A | 0071011 | cellular_component | precatalytic spliceosome |
| A | 0071013 | cellular_component | catalytic step 2 spliceosome |
| A | 0097526 | cellular_component | spliceosomal tri-snRNP complex |
| A | 1903241 | biological_process | U2-type prespliceosome assembly |
| B | 0000245 | biological_process | spliceosomal complex assembly |
| B | 0000387 | biological_process | spliceosomal snRNP assembly |
| B | 0000398 | biological_process | mRNA splicing, via spliceosome |
| B | 0003723 | molecular_function | RNA binding |
| B | 0005515 | molecular_function | protein binding |
| B | 0005634 | cellular_component | nucleus |
| B | 0005654 | cellular_component | nucleoplasm |
| B | 0005681 | cellular_component | spliceosomal complex |
| B | 0005682 | cellular_component | U5 snRNP |
| B | 0005684 | cellular_component | U2-type spliceosomal complex |
| B | 0005685 | cellular_component | U1 snRNP |
| B | 0005686 | cellular_component | U2 snRNP |
| B | 0005687 | cellular_component | U4 snRNP |
| B | 0005689 | cellular_component | U12-type spliceosomal complex |
| B | 0005737 | cellular_component | cytoplasm |
| B | 0005829 | cellular_component | cytosol |
| B | 0006397 | biological_process | mRNA processing |
| B | 0008380 | biological_process | RNA splicing |
| B | 0030532 | cellular_component | small nuclear ribonucleoprotein complex |
| B | 0034709 | cellular_component | methylosome |
| B | 0034715 | cellular_component | pICln-Sm protein complex |
| B | 0034719 | cellular_component | SMN-Sm protein complex |
| B | 0036261 | biological_process | 7-methylguanosine cap hypermethylation |
| B | 0046540 | cellular_component | U4/U6 x U5 tri-snRNP complex |
| B | 0070062 | cellular_component | extracellular exosome |
| B | 0071005 | cellular_component | U2-type precatalytic spliceosome |
| B | 0071007 | cellular_component | U2-type catalytic step 2 spliceosome |
| B | 0071011 | cellular_component | precatalytic spliceosome |
| B | 0071013 | cellular_component | catalytic step 2 spliceosome |
| B | 1903241 | biological_process | U2-type prespliceosome assembly |
