The patA gene product, which contains a region similar to CheY of Escherichia coli, controls heterocyst pattern formation in the cyanobacterium Anabaena 7120.

@article{Liang1992ThePG,
  title={The patA gene product, which contains a region similar to CheY of Escherichia coli, controls heterocyst pattern formation in the cyanobacterium Anabaena 7120.},
  author={Jihong Liang and Lori A Scappino and Robert Haselkorn},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1992},
  volume={89 12},
  pages={5655-9}
}
In Anabaena 7120, heterocysts (cells specialized for nitrogen fixation) develop at the ends of filaments and at intervals within each filament. We have isolated a mutant Anabaena strain that develops heterocysts mostly at the ends of filaments. This mutant, PAT-1, grows poorly under nitrogen-fixing conditions. The wild-type gene that complements the mutation in PAT-1, called patA, was cloned and sequenced. The predicted PatA protein contains 379 amino acids distributed among three "domains… CONTINUE READING