ATMUS81; endonuclease/ nucleic acid binding. similar to repair endonuclease family protein [Arabidopsis thaliana] (TAIR:AT5G39770.1); similar to predicted protein [Physcomitrella patens subsp. patens] (GB:EDQ80394.1); similar to Os01g0948100 [Oryza sativa (japonica cultivar-group)] (GB:NP_001045390.1); contains InterPro domain DNA repair nuclease, XPF-type/Helicase; (InterPro:IPR006166); contains InterPro domain Helix-hairpin-helix DNA-binding, class 1; (InterPro:IPR003583); contains InterPro domain Restriction endonuclease, type II-like, core; (InterPro:IPR011335)