Nowadays, there exist a lot of databases containing tissue-specific expression information.
Currently, there exist a number of planarian databases, including the hybridoma library of D. tigrina (Bueno et al., 1997), the annotated genomic database of S. mediterranea (Sánchez Alvarado et al., 2002; Robb et al., 2008; Adamidi et al., 2011), and the expressed sequence tag (EST) database of D. ryukyuensis (Ishizuka et al., 2007).
There is no similar database to RASOnD, however, there exist a small number of databases which have some reference to the 'Ras' gene/protein "see Additional file 1, Figure S1".
There exist a variety of online databases which aim to catalogue all known diseases with a strong genetic component (e.g. mendelian genetic syndromes) and link, at least some of, these diseases to the relevant genes in the human genome.
Many bioinformatic programs and pre-computed databases of orthologs exist, a number of which are listed in a recent review [ 28].
Beyond these global assessments of gene expression patterns there exist a number of public and proprietary databases allowing for the assignment of biological function to gene lists.
In this case, there exists a secret shared database of phenotype attributes that consists of boolean attributes (e.g. has diabetes) and integers (e.g. age, blood pressure, height).
So subtypes are groups of related records that exist within a database table.
It is used primarily for the simulation of PWR and BWR types of reactors as there exists an internal database, suitable for modeling of their core inventory.
Currently, there are few published Xenopus array studies available [ 77- 85] while there exist extensive databases of expression for a variety of model organisms.
