>2NZ4_1|Chains A[auth E], C[auth F], E[auth G], G[auth H]|substrate strand RNA 13-mer| AAGCGCCAGAACU >2NZ4_2|Chains B[auth P], D[auth Q], F[auth R], H[auth S]|GlmS ribozyme|null GGCACCAUUGCACUCCGGUGCCAGUUGACGAGGUGGGGUUUAUCGAGAUUUCGGCGGAUGACUCCCGGUUGUUCAUCACAACCGCAAGCUUUUACUUAAAUCAUUAAGGUGACUUAGUGGACAAAGGUGAAAGUGUGAUGA >2NZ4_3|Chains I[auth A], J[auth B], K[auth C], L[auth D]|U1 Small Nuclear Ribonucleoprotein A|Homo sapiens (9606) ETRPNHTIYINNLNEKIKKDELKKSLHAIFSRFGQILDILVSRSLKMRGQAFVIFKEVSSATNALRSMQGFPFYDKPMRIQYAKTDSDIIAKMK