| Chain | GOid | namespace | contents |
| A | 0000398 | biological_process | mRNA splicing, via spliceosome |
| A | 0003723 | molecular_function | RNA binding |
| A | 0005634 | cellular_component | nucleus |
| A | 0005730 | cellular_component | nucleolus |
| A | 0005840 | cellular_component | ribosome |
| A | 0030490 | biological_process | maturation of SSU-rRNA |
| A | 0031120 | biological_process | snRNA pseudouridine synthesis |
| A | 0031428 | cellular_component | box C/D methylation guide snoRNP complex |
| A | 0031429 | cellular_component | box H/ACA snoRNP complex |
| A | 0032040 | cellular_component | small-subunit processome |
| A | 0042254 | biological_process | ribosome biogenesis |
| A | 0046540 | cellular_component | U4/U6 x U5 tri-snRNP complex |
| A | 0071011 | cellular_component | precatalytic spliceosome |
| A | 1990904 | cellular_component | ribonucleoprotein complex |
| B | 0000398 | biological_process | mRNA splicing, via spliceosome |
| B | 0003723 | molecular_function | RNA binding |
| B | 0005634 | cellular_component | nucleus |
| B | 0005730 | cellular_component | nucleolus |
| B | 0005840 | cellular_component | ribosome |
| B | 0030490 | biological_process | maturation of SSU-rRNA |
| B | 0031120 | biological_process | snRNA pseudouridine synthesis |
| B | 0031428 | cellular_component | box C/D methylation guide snoRNP complex |
| B | 0031429 | cellular_component | box H/ACA snoRNP complex |
| B | 0032040 | cellular_component | small-subunit processome |
| B | 0042254 | biological_process | ribosome biogenesis |
| B | 0046540 | cellular_component | U4/U6 x U5 tri-snRNP complex |
| B | 0071011 | cellular_component | precatalytic spliceosome |
| B | 1990904 | cellular_component | ribonucleoprotein complex |
