CATH Classification

Domain Context

CATH Clusters

Superfamily 3.30.420.40
Functional Family Probable tRNA N6-adenosine threonylcarbamoyltransferase

Enzyme Information

2.3.1.234
N(6)-L-threonylcarbamoyladenine synthase.
based on mapping to UniProt Q58530
L-threonylcarbamoyladenylate + adenine(37) in tRNA = AMP + N(6)-L- threonylcarbamoyladenine(37) in tRNA.
-!- The enzyme is involved in the synthesis of N(6)- threonylcarbamoyladenosine(37) in tRNAs, which is found in tRNAs with the anticodon NNU, i.e. tRNA(Ile), tRNA(Thr), tRNA(Asn), tRNA(Lys), tRNA(Ser) and tRNA(Arg). -!- Formerly EC 2.6.99.4.
2.7.11.1
Non-specific serine/threonine protein kinase.
based on mapping to UniProt Q58530
ATP + a protein = ADP + a phosphoprotein.
-!- This is a heterogeneous group of serine/threonine protein kinases that do not have an activating compound and are either non-specific or their specificity has not been analyzed to date. -!- Formerly EC 2.7.1.37 and EC 2.7.1.70.

UniProtKB Entries (2)

Q8TZI1
Q8TZI1_PYRFU
Pyrococcus furiosus DSM 3638
Uncharacterized protein
Q58530
KAE1B_METJA
Methanocaldococcus jannaschii DSM 2661
Probable bifunctional tRNA threonylcarbamoyladenosine biosynthesis protein

PDB Structure

PDB 5JMV
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural and functional characterization of KEOPS dimerization by Pcc1 and its role in t6A biosynthesis.
Wan, L.C., Pillon, M.C., Thevakumaran, N., Sun, Y., Chakrabartty, A., Guarne, A., Kurinov, I., Durocher, D., Sicheri, F.
Nucleic Acids Res.