Editase (EC:3.5) are enzymes that alter mRNA by catalyzing the
site-selective deamination of adenosine residue into inosine residue.
The editase domain contains the active site and binds three Zn atoms [1].
Several editases share a common global arrangement of domains, from N to C terminus: two
'double-stranded RNA-specific adenosine deaminase' (DRADA) repeat domains (IPR000607), followed by
three 'double-stranded RNA binding' (DsRBD) domains (IPR001159), followed by
the editase domain. Other editases have a simplified domains structure with no
DRADA_REP and possibly fewer DSRBD domains. Editase that deaminate cytidine are not detected by this signature.