Structural highlights 
6nhl is a 2 chain structure with sequence from Escherichia coli K-12. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.  
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| Method: | X-ray diffraction, Resolution 2.101Å | 
| Ligands: | , , , ,  | 
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT | 
  Function 
A0A0E1M5B1_ECOLX Catalyzes the complex heterocyclic radical-mediated conversion of 6-carboxy-5,6,7,8-tetrahydropterin (CPH4) to 7-carboxy-7-deazaguanine (CDG), a step common to the biosynthetic pathways of all 7-deazapurine-containing compounds.[HAMAP-Rule:MF_00917]