Fig. 3: Diagram of catalase gene promoter and prediction of putative CpG-Islands.

A The entire human catalase promoter was analyzed for the prediction of putative CpG sites for methylation (http://www.urogene.org/cgi-bin/methprimer/methprimer.cgi). Two potential CpG-Islands were detected in the catalase promoter: a proximal (Island-I; nt −174 to −332) and a distal (Island-II; nt −3619 to −3765) as shown by line drawing for putative methylation sites. B, C These diagrams are showing the GC contents, putative methylation sites, and positions in the human catalase promoter as per the analysis.