Patent ID: 8038945

Claim:
A system comprising (i) a protein array in which a protein is immobilized in aligned position on an ultraviolet light-transmissive substrate at a high density and (ii) a spectrophotometer, the system being for detecting or analyzing a protein on the protein array and/or a compound which is other than proteins and which interacts with the immobilized protein, wherein the protein on the protein array and/or the compound other than proteins are detected/analyzed by irradiating the protein array with ultraviolet light using the spectrophotometer, irradiating an ultraviolet-visible light converting device with the ultraviolet light transmitted through the protein array, and measuring the visible light converted from the ultraviolet light transmitted through the protein array for determining the light absorption of the protein on the array and/or the compound which is other than proteins and which interacts with the immobilized protein.