"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." [GOC:bf, GOC:BHF, GOC:krc, GOC:mah, GOC:rl, PMID:11983179, PMID:18775984]
There are 6 sequences with this label.
| Name | Species | % in cluster | p-value | corrected p-value | action |
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