Sigma-Aldrich announced this week the launch of its Panorama Human p53 Protein Functional Microarray. Developed by Procognia and distributed exclusively by Sigma-Aldrich, the p53 protein microarray contains wild type human p53 and 49 of its variants. Each variant contains a mutation or single nucleotide polymorphism that results in an amino acid change or a truncation. The array is based on a novel and proprietary technology that ensures the protein is correctly folded and confers full functionality, the company said.