Gentel Biosciences, a leader in proteomics profiling tools, and Eprogen, jointly announce the publication of a new book chapter featuring Gentel’s native fractionation array technology. The article can be found in the latest edition of the Springer Protocols’ Methods and Protocols Series: Methods in Molecular Biology: Protein Microarray for Disease Analysis Methods and Protocols by Humana Press. The chapter entitled, “Native Antigen Fractionation Protein Microarrays for Biomarker Discovery”, presents a detailed description of the creation and use of native protein fractionation arrays for autoantibody profiling.