Rn2, ancient tentative ribonuclease fold - Giacobelli, V. G.; Andresson, S.; Srb, P.; Neuwirthova, T.; Ruszova, Z.; Marhoul, J.; Psenicka, S.; Knetl, A.; Bednarova, L.; Veverka, V.; Andre, I.; Hlouchova, Z. (Biological Magnetic Resonance Bank, 2026)