7-cyano-7-deazaguanine synthase

7-cyano-7-deazaguanine synthase (EC 6.3.4.20, preQ0 synthase, 7-cyano-7-carbaguanine synthase, queC (gene)) is an enzyme with systematic name 7-carboxy-7-carbaguanine:ammonia ligase (ADP-forming).^[1][2] This enzyme catalyses the following chemical reaction

7-carboxy-7-carbaguanine + NH₃ + ATP ${\displaystyle \rightleftharpoons }$ 7-cyano-7-carbaguanine + ADP + phosphate + H₂O

7-Cyano-7-deazaguanine synthase
Identifiers
EC no.	6.3.4.20
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

This enzyme binds Zn²⁺.