Function | Bifunctional mRNA-capping enzyme exhibiting RNA 5'-triphosphate monophosphatase activity in the N-terminal part and mRNA guanylyltransferase activity in the C-terminal part. Catalyzes the first two steps of cap formation: by removing the gamma-phosphate from the 5'-triphosphate end of nascent mRNA to yield a diphosphate end, and by transferring the GMP moiety of GTP to the 5'-diphosphate terminus of RNA via a covalent enzyme-GMP reaction intermediate. |
Protein Name | Mrna-Capping EnzymeHcap1Hce Includes - Mrna 5'-Triphosphate MonophosphataseMrna 5'-Phosphatase - Mrna GuanylyltransferaseGtp--Rna GuanylyltransferaseGtase |
Database Links | Reactome: R-HSA-167160Reactome: R-HSA-72086Reactome: R-HSA-77075 |
Cellular Localisation | Nucleus |
Alternative Protein Names | Mrna-Capping Enzyme proteinHcap1 proteinHce Includes - Mrna 5'-Triphosphate Monophosphatase proteinMrna 5'-Phosphatase - Mrna Guanylyltransferase proteinGtp--Rna Guanylyltransferase proteinGtase proteinRNGTT proteinCAP1A protein |
Information sourced from Uniprot.org