| Name | precatalytic spliceosome |
| ID | GO_0071011 |
| collection_id | Cellular component |
| Description | 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. |
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| Genes |