The adenylate cyclase catalytic domain of Streptomyces coelicolor is carboxy-terminal.

@article{Danchin1993TheAC,
  title={The adenylate cyclase catalytic domain of Streptomyces coelicolor is carboxy-terminal.},
  author={Antoine Danchin and Josette Pidoux and Evelyne Krin and Charles B. Thompson and Agn{\`e}s Ullmann},
  journal={FEMS microbiology letters},
  year={1993},
  volume={114 2},
  pages={145-51}
}
A DNA fragment of Streptomyces coelicolor encoding the carboxy-terminal catalytic domain of adenylate cyclase was cloned, sequenced and expressed in an Escherichia coli cya-defective strain where it produced nanomole levels of cAMP. The amino acid sequence of the enzyme displays similarities with the Brevibacterium liquefaciens pyruvate regulated adenylate cyclase.