👉 Pyocyanin is a protein that is found in the cytoplasm of some types of bacteria, including E.coli and Salmonella typhi. It is primarily responsible for the production of the red pigment pyocyanin, which is used by bacteria to communicate with each other via chemotaxis. Pyocyanin is also involved in the process of cell division, as it contains a signal receptor that triggers the endoplasmic reticulum (ER) to release cytos