2-aminophenol 1,6-dioxygenase subunit beta - Q6J1Z6 (AMNB_COMTE)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Component of the 2-aminophenol 1,6-dioxygenase (APD) complex that catalyzes the ring fission of 2-aminophenol to produce 2-aminomuconic semialdehyde. CnbCb seems to be the catalytic subunit of the complex. Also active on other substrates such as 2-amino-5-chlorophenol (68% activity), protocatechuate (33% activity) and catechol (5% activity). Both 2-aminophenol and 2-amino-5-cholorophenol are likely native substrates for this dioxygenase which is involved in the reductive degradation pathway of both nitrobenzene (NB) and 4-chloronitrobenzene (4-CNB), allowing C.testosteroni strain CNB-1 to grow on these compounds as sole source of carbon, nitrogen, and energy. UniProt
Catalytic Activity
2-amino-5-chlorophenol + O2 = 2-amino-5-chloromuconate 6-semialdehyde. UniProt
Pathway Maps
      ESCHER  BiGG
Subunit Structure
The APD complex is a heterotetramer of 2 alpha (CnbCa) and 2 beta (CnbCb) subunits. UniProt
  • Organism: Pseudomonas testosteroni
  • Length:
  • UniProt
  • Other Gene names: cnbCb, amnB
This protein in other organisms (by gene name):
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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