GO_term: GO:0000364
GO:0000364 | Definition | Catalysis of the second transesterification reaction of U2-type spliceosomal mRNA splicing. Ligation of the two exons occurs via a transesterification reaction where the free 3'-hydroxyl group of the 5' exon is the nucleophile attacking the 3' splice site. Non-expressed sequences are now detached from the exons. In cis splicing, the intron is in a lariat structure. The catalytic site is thought to be formed by U6 and/or U2 snRNAs and/or associated proteins. | |
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Term | 2nd U2-type spliceosomal transesterification activity | ||
second U2-type spliceosomal transesterification activity | |||
Type | Molecular_function | ||
Parent | Instance_of | GO:0000386 | |
Attributes_of | Index | Ancestor (21) | |
Descendent (4) |