"This demonstrates that purple bacteria
can be used to recover valuable biofuel from organics typically found in wastewater -- malic acid and sodium glutamate -- with a low carbon footprint," reports Esteve-Nunez.
Specifically, the Grid Technology Research Center and the Research Institute for Computational Sciences, both AIST organizations, have jointly calculated the electron density of the membrane protein complex of Rhodopseudomonas viridis, a kind of photosynthetic purple bacteria
, using the AIST SuperCluster, AIST's proprietary cluster computer.
Anaerobic oxidation of ferrous iron by purple bacteria
, a new type of phototrophic metabolism.
An example is the modification of the electron affinity of the reaction center pigment in purple bacteria
. Jim Allen and JoAnn Williams at Arizona State University have found that creating or deleting noncovalent hydrogen bonds between the protein and the pigment changes this electron affinity in a rather predictable manner.