Researchers described for the first time the structure of a bifunctional protein, called CcsBA, that transports heme and attaches it to cytochromes. The study captured two conformational states of CcsBA, a bacterial and chloroplast protein, allowing scientists to characterize the enzyme mechanism.
Click here for original story, A pathway emerges: Biologists describe structure and function of a heme transport and assembly machine
Source: ScienceDaily