Patent ID: 8148141

Claim:
A method for measuring one or more target proteins in a test sample, comprising the steps of: bringing a plurality of chemically synthesized peptides each having 3 to 50 amino acids, each of which has an expected spatial structure and at least one of said chemically synthesized peptides is capable of binding with said target protein, into contact with said test sample which may contain the target protein; 100 to 10,000 types of said chemically synthesized peptides are immobilized on the same or different substrate, each of said plurality of chemically synthesized peptides being labeled with at least one label wherein a signal is changed upon binding of said labeled chemically synthesized peptide with a target protein; measuring the change of said signal due to target protein binding said labeled chemically synthesized peptides; assigning a different color or a different brightness or chroma of a single color to an increment of change in signal, wherein the differences in assigned color, brightness or chroma can be distinguished by the naked eye; and converting the measured values in the change of said signal for each labeled chemically synthesized peptide into a visible array displaying the different color or the different brightness or chroma of a single color for each labeled chemically synthesized peptide based on the measured change of signal for said labeled chemically synthesized peptide, wherein differences between measured values for different labeled chemically synthesized peptides can may be recognized with a naked eye in the visible array, thereby creating a unique visual pattern characteristic of the test sample.