Modomics - A Database of RNA Modifications

ID Card:

Full name: Ribosomal RNA large subunit methyltransferase C
Synonym: YbgF, RumB
GI: 2501407
Orf: ybgF, b0859
COG: COG2265
UniProt: P75817
Alpha Fold Predicted Structure: AF-P75817-F1
Enzyme type: methyltransferase
Position of modification - modification: l:747(747) - m5U



Protein sequence:

MQCALYDAGRCRSCQWIMQPIPEQLSAKTADLKNLLADFPVEEWCAPVSGPEQGFRNKAKMVVSGSVEKPLLGMLHRDGTPEDLCDCPLYPASFAPVFAALKPFIARAGLTPYNVARKRGELKYILLTESQSDGGMMLRFVLRSDTKLAQLRKALPWLHEQLPQLKVITVNIQPVHMAIMEGETEIYLTEQQALAERFNDVPLWIRPQSFFQTNPAVASQLYATARDWVRQLPVKHMWDLFCGVGGFGLHCATPDMQLTGIEIASEAIACAKQSAAELGLTRLQFQALDSTQFATAQGDVPELVLVNPPRRGIGKPLCDYLSTMAPRFIIYSSCNAQTMAKDIRELPGFRIERVQLFDMFPHTAHYEVLTLLVKQ

Comments:

RlmC (formerly RumB) methylates the conserved U747 in the loop of helix 35 of domain II of the large subunit rRNA. Recombinant E.coli RlmC is inactive in vitro. However, its archaeal recombinant RlmC paralog (P. abyssi PAB0760) is active on transcript corresponding to a fragment of rRNA encompassing the hairpin 33-35. AdoMet is the methyl group donor.




Reaction Substrate SubstrateType Position (Anti)Codon Modified (Anti)Codon Amino Acid Change Transcript Name Transcript Region Cellular Localization References
U:m5U rRNA (r) LSU/23S/prokaryotic cytosol 747 LSU-23S Prokaryotic Cytosol 12907714   

Alpha Fold Predicted Structure:






Clear Selection and Reset Camera

Protein sequence:

M Q C A L Y D A G R C R S C Q W I M Q P I P E Q L S A K T A D L K N L L A D F P V E E W C A P V S G P E Q G F R N K A K M V V S G S V E K P L L G M L H R D G T P E D L C D C P L Y P A S F A P V F A A L K P F I A R A G L T P Y N V A R K R G E L K Y I L L T E S Q S D G G M M L R F V L R S D T K L A Q L R K A L P W L H E Q L P Q L K V I T V N I Q P V H M A I M E G E T E I Y L T E Q Q A L A E R F N D V P L W I R P Q S F F Q T N P A V A S Q L Y A T A R D W V R Q L P V K H M W D L F C G V G G F G L H C A T P D M Q L T G I E I A S E A I A C A K Q S A A E L G L T R L Q F Q A L D S T Q F A T A Q G D V P E L V L V N P P R R G I G K P L C D Y L S T M A P R F I I Y S S C N A Q T M A K D I R E L P G F R I E R V Q L F D M F P H T A H Y E V L T L L V K Q

Secondary Structure Alphabet

  • G: 3-turn helix (310helix)
  • H: α-helix
  • I: 𝝅-helix (5 - turn helix)
  • T: Hydrogen Bonded Turn
  • B: β-sheet
  • S: Bend
  • C: Coil (residues not present in any of the above conformations)
  • N: Not assigned

Download PDB Structures & DSSP Secondary Structures:

Alpha Fold Pdb Files   AF-P75817-F1.pdb  
Alpha Fold Pdbx/mmCIF Files   AF-P75817-F1.cif  
DSSP Secondary Structures   P75817.dssp  





Publications:

Title Authors Journal Details PubMed Id DOI
Identifying the methyltransferases for m(5)U747 and m(5)U1939 in 23S rRNA using MALDI mass spectrometry. Madsen CT, Mengel-Jorgensen J, Kirpekar F, Douthwaite S Nucleic Acids Res [details] 12907714 -