Structural highlights 
| 5ti9 is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. 
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| Ligands: | , , , , | 
| Related: | 5tia | 
| Activity: | Tryptophan 2,3-dioxygenase, with EC number 1.13.11.11 | 
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT | 
  Function 
[T23O_HUMAN] Incorporates oxygen into the indole moiety of tryptophan. Has a broad specificity towards tryptamine and derivatives including D- and L-tryptophan, 5-hydroxytryptophan and serotonin (By similarity).