Modomics - A Database of RNA Modifications

ID Card:

Full name: tRNA-methyltransferase O
GI: 118600979
Orf: HSPC219
COG: COG1720
UniProt: Q9BU70
Alpha Fold Predicted Structure: AF-Q9BU70-F1
Enzyme type: methyltransferase
Position of modification - modification: t: - m6t6A



Protein sequence:

MRGLEESGPRPTATPCGCVKPALETGNLLTEPVGYLESCFSAKNGTPRQPSICSYSRACLRIRKRIFNNPEHSLMGLEQFSHVWILFVFHKNGHLSCKAKVQPPRLNGAKTGVFSTRSPHRPNAIGLTLAKLEKVEGGAIYLSGIDMIHGTPVLDIKPYIAEYDSPQNVMEPLADFNLQNNQHTPNTVSQSDSKTDSCDQRQLSGCDEPQPHHSTKRKPKCPEDRTSEENYLTHSDTARIQQAFPMHREIAVDFGLESRRDQSSSVAEEQIGPYCPEKSFSEKGTDKKLERVEGAAVLQGSRAETQPMAPHCPAGRADGAPRSVVPAWVTEAPVATLEVRFTPHAEMDLGQLSSQDVGQASFKYFQSAEEAKRAIEAVLSADPRSVYRRKLCQDRLFYFTVDIAHVTCWFGDGFAEVLRIKPASEPVHMTGPVGSLVSLGS

Comments:

Homolog of E. coli TrmO. The substrate recognition mechanism of human TRMO differs from that of E. coli TrmO - human tRNASer(GCU) has A31-U39 and C35, which should function as anti-determinants for E. coli TrmO.




Reaction Substrate SubstrateType Position (Anti)Codon Modified (Anti)Codon Amino Acid Change Transcript Name Transcript Region Cellular Localization References
t6A:m6t6A tRNA (t) Ser/GCU/eukaryotic cytosol 37 25063302   

Alpha Fold Predicted Structure:






Clear Selection and Reset Camera

Protein sequence:

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

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-Q9BU70-F1.pdb  
Alpha Fold Pdbx/mmCIF Files   AF-Q9BU70-F1.cif  
DSSP Secondary Structures   Q9BU70.dssp  





Publications:

Title Authors Journal Details PubMed Id DOI
Discovery of the beta-barrel-type RNA methyltransferase responsible for N6-methylation of N6-threonylcarbamoyladenosine in tRNAs. Kimura S, Miyauchi K, Ikeuchi Y, Thiaville PC, de Crecy-Lagard V, Suzuki T... Nucleic Acids Res [details] 25063302 -