The present invention provides cDNAs encoding deoxyribonuclease II and isolated, purified deoxyribonuclease II proteins. The at least one pocket on the posterior portion covers a surface area of the posterior portion in an amount of about one percent up to fifty percent of the surface area. At least two conversion elements are arranged one behind the other in the lighting device in the propagation direction of the excitation light. Regions of the semiconductor and insulating layers in the second portion are juxtaposed with electrodes formed from the first and second conducting layers in the central zone, forming organic electronic components comprising one or more of transistors, diodes, resistors and capacitors.