7mrx is a 6 chain structure with sequence from Bacillus amyloliquefaciens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
RNBR_BACAM Hydrolyzes phosphodiester bonds in RNA, poly- and oligoribonucleotides resulting in 3'-nucleoside monophosphates via 2',3'-cyclophosphate intermediates.