I was wondering where to find Signal Transduction system in my organisms, Finally I found this wonderful database. http://mistdb.com/
The Microbial Signal Transduction database contains the signal transduction proteins for bacterial and archaeal genomes (2,457 complete and 5,181 draft). These are identified using various domain profiles that directly or indirectly implicate a particular protein in participating in signal transduction.
Citing MiST If you use information from the MiST database in your research, please cite: The MiST2 database: a comprehensive genomics resource on microbial signal transduction. Luke E. Ulrich and Igor B. Zhulin Nucleic Acids Research, 2010, doi:10.1093/nar/gkp940.