- Sponge 2-5A synthetases form the distinct subgroup of the 2-5A synthetase familyKuusksalu, Anne; Reintamm, Tõnu; Lopp, Annika; Päri, Mailis; Kelve, MerikeVIII World Sponge Conference : Ancient Animals, new Challenges : Girona (Spain), 20-24 September 2010 : book of abstracts2010 / p. 239