The protein Expression databases-maintained Microarray info and proteins expression, which allow to searches by gene, splice variant, protein attribute, disease, treatment or organism part, which is a form of metadata manually curated and analyzed through stander analysis pipelines(Chen, Huang et al. 2017).e.g Expression Atlas, provides information about protein expression in animal and plant samples of different cell types, organism parts, developmental stages, diseases and other conditions(Petryszak, Burdett et al. 2014). We have collected 13 protein Expression databases from recent published scientific literature and have freely access