Full name: 18S rRNA (guanine-N(7))-methyltransferase
Synonym: MERM1, BUD23
GI: 21552765
Orf:
COG:
UniProt:
Structures: | |
Complex: WBSCR22-TRMT112
Enzyme type: methyltransferase
Position of modification - modification: s:1639(1338) - m7G

Comments:

WBSCR22 is required for N7 methylation at nucleotide G1639 of 18S rRNA. WBSCR22 interacts directly with TRMT112, forming a heterodimer, and that the latter protein is required for the metabolic stability of the former. Enzyme is required for distinct pre-rRNA processing reactions leading to synthesis of 18S rRNA, and it has been demonstrated that in human cells, as in budding yeast, ribosome biogenesis requires the presence of the modification enzyme rather than its RNA-modifying catalytic activity.

Protein sequence:

MASRGRRPEHGGPPELFYDETEARKYVRNSRMIDIQTRMAGRALELLYLPENKPCYLLDI GCGTGLSGSYLSDEGHYWVGLDISPAMLDEAVDREIEGDLLLGDMGQGIPFKPGTFDGCI SISAVQWLCNANKKSENPAKRLYCFFASLFSVLVRGSRAVLQLYPENSEQLELITTQATK AGFSGGMVVDYPNSAKAKKFYLCLFSGPSTFIPEGLSENQDEVEPRESVFTNERFPLRMS RRGMVRKSRAWVLEKKERHRRQGREVRPDTQYTGRKRKPRF

Publications:

Title Authors Journal Details PubMed Id DOI
The human 18S rRNA base methyltransferases DIMT1L and WBSCR22-TRMT112 but not rRNA modification are required for ribosome biogenesis. Zorbas C, Nicolas E, Wacheul L, Huvelle E, Heurgué-Hamard V, Lafontaine DL. Mol Biol Cell [details] 25851604 10.1091/mbc.E15-02-0073
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