| Name | U2-type precatalytic spliceosome |
| ID | GO_0071005 |
| collection_id | Cellular component |
| Exact synonym | major precatalytic spliceosome |
| Description | A spliceosomal complex that is formed by the recruitment of the preassembled U4/U6.U5 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 U1, U2 and U4/U6.U5 snRNPs. |
| Related synonym | yeast U12-type spliceosomal complex A2-1 |
| External URL | |
| Genes |