ChIP-on-chip microarray products family includes four prokaryote species: Escherichia coli 0157, Salmonella typhimurium LT2, Salmonella typhimurium SL1344 and Streptomyces coelicolor. Chip2 microarrays can be used to identify the binding positions of global DNA-binding proteins, analyze changes in a particular protein’s binding under various environmental conditions, as a model system to further understand gene regulation or to reveal potential therapeutic targets against a prokaryotic species. Each Chip2 microarray is fabricated using an ink-jet in-situ synthesis (IJISS) platform and interrogates the genome of interest with a probe density of 22,000 oligonucleotide features. ChIP microarray data generated can then be analyzed in relation to its relative gene position using a ChIP browser, reducing the time taken to analyze the data.