| Name | 7-methylguanosine cap hypermethylation |
| ID | GO_0036261 |
| collection_id | Biological process |
| Exact synonym | 2,2,7-trimethylguanosine cap formation, TMG cap formation, conversion of m(7)G to m(3)G, m(7)G cap hypermethylation |
| Description | Hypermethylation of the 7-(mono)methylguanosine (m(7)G) cap structure at the 2' position of the guanosine residue to convert a mono-methylated cap to a 2,2,7-trimethylguanosine cap structure. This type of cap modification occurs on small nuclear RNAs (snRNAs) and small nucleolar RNAs (snoRNAs) and is dependent on prior guanine-N7 methylation. |
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| Genes |