Species abbreviations are as follows: hs (Homo sapiens), mm (Mus musculus), rn (Rattus norvegus), oc (Oryctolagus cuniculus), gg (Gallus gallus), xl (Xenopus laevis), st (Silurana tropicalis), tr (Takifugu rubripes), dr (Danio rerio), ci (Ciona intestinalis), dm (D. melanogaster), ce (C. elegans), sc (Saccharomyces cerevisiae).