FEATURES

FAMILY

DESCRIPTION

Also known as MCES_HUMAN, RNMT, KIAA0398. Catalytic subunit of the mRNA-capping methyltransferase RNMT:RAMAC complex that methylates the N7 position of the added guanosine to the 5'-cap structure of mRNAs (PubMed:9790902, PubMed:9705270, PubMed:10347220, PubMed:11114884, PubMed:22099306, PubMed:27422871). Binds RNA containing 5'-terminal GpppC (PubMed:11114884). Interacts with importin alpha, leading to stimulate both RNA-binding and methyltransferase activity (PubMed:11114884). Interaction with importin alpha and beta is required for its nuclear localization, importin beta dissociating in response to RanGTP, allowing RNMT-importin alpha to bind RNA substrates (PubMed:11114884). Interacts with elongating form of polymerase II and RNGTT (PubMed:9705270). Interacts with RAMAC, this interaction significantly enhances RNA-binding and cap methyltransferase activity (PubMed:22099306, Ref.14).

EXTERNAL LINKS

RNMT

mRNA cap guanine-N7 methyltransferase

RNMT

Molecular Synopsis