CATH Classification

Domain Context

CATH Clusters

Superfamily 3.30.1130.10
Functional Family

Enzyme Information

1.7.1.13
PreQ(1) synthase.
based on mapping to UniProt Q9KTK0
7-aminomethyl-7-carbaguanine + 2 NADP(+) = 7-cyano-7-carbaguanine + 2 NADPH.
-!- The reaction occurs in the reverse direction. -!- This enzyme catalyzes one of the early steps in the synthesis of queosine (Q-tRNA), and is followed by the action of EC 2.4.2.29. -!- Queosine is found in the wobble position of tRNA(GUN) in eukaryotes and bacteria and is thought to be involved in translational modulation.

UniProtKB Entries (1)

Q9KTK0
QUEF_VIBCH
Vibrio cholerae O1 biovar El Tor str. N16961
NADPH-dependent 7-cyano-7-deazaguanine reductase

PDB Structure

PDB 3RZP
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal Structure of the C194A mutant of 7-cyano-7-deazaguanine reductase, QueF from Vibrio cholerae complexed with preQ1
Kim, Y., Zhou, M., Gu, M., Anderson, W.F., Joachimiak, A., CSGID
To be Published