Abstract: A light-driven energy generation system using proteorhodopsin is provided. The system includes a light source, a host with a correctly folded, integrated proteorhodopsin protein, a source of retinal, and a mediator. The source of retinal binds covalently to the integrated proteorhodopsin protein, thereby creating a light absorbing pigment. Illumination of the light absorbing pigment with the light source results in conversion of light energy to biochemical energy. This biochemical energy is harnessed by the mediator to produce light-driven energy, such as mechanical, chemical or electrical energy.

Abstract: A light-driven energy generation system using proteorhodopsin is provided. Proteorhodopsin sequences were retrieved and amplified from naturally occurring members of the domain Bacteria using proteorhodopsin-specific polymerase chain reaction primers. Proteorhodopsin sequences were placed in expression vectors for production of proteorhodopsin proteins in a host, for instance, E. coli and other bacteria. The system also includes a light source and a source of retinal, that allows the system to convert light into biochemical energy. The generated biochemical energy could be mediated into electrical energy by a mediator.

Abstract: A light-driven energy generation system using proteorhodopsin is provided. Proteorhodopsin sequences were retrieved and amplified from naturally occurring members of the domain Bacteria using proteorhodopsin-specific polymerase chain reaction primers. Proteorhodopsin sequences were placed in expression vectors for production of proteorhodopsin proteins in a host, for instance, E. coli and other bacteria. The system also includes a light source and a source of retinal, that allows the system to convert light into biochemical energy. The generated biochemical energy could be mediated into electrical energy by a mediator.