1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Kolk, M.H. Heus, H.A. Hilbers, C.W. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 C10 H14 N5 O7 P 347.221 y ADENOSINE-5'-MONOPHOSPHATE RNA linking C9 H14 N3 O8 P 323.197 y CYTIDINE-5'-MONOPHOSPHATE RNA linking C10 H14 N5 O8 P 363.221 y GUANOSINE-5'-MONOPHOSPHATE RNA linking C9 H13 N2 O9 P 324.181 y URIDINE-5'-MONOPHOSPHATE RNA linking UK EMBO J. EMJODG 0897 0261-4189 16 3685 3692 10.1093/emboj/16.12.3685 9218809 The structure of the isolated, central hairpin of the HDV antigenomic ribozyme: novel structural features and similarity of the loop in the ribozyme and free in solution. 1997 10.2210/pdb1ato/pdb pdb_00001ato 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 RNA 6020.617 RNA (5'-R(*GP*GP*CP*AP*CP*CP*UP*CP*CP*UP*CP*GP*CP*GP*GP*UP*GP*CP*C)-3') CENTRAL HAIRPIN 1 nat polymer HEPATITIS DELTA VIRUS RIBOZYME no no GGCACCUCCUCGCGGUGCC GGCACCUCCUCGCGGUGCC A polyribonucleotide n n n n n n n n n n n n n n n n n n n Deltavirus sample 12475 Hepatitis delta virus 0.735 1 19 A 1 A 19 -5.722 A_G1:C19_A 1 -7.852 -0.488 0.207 -0.463 -1.407 1 19 A 2 A 18 -1.875 A_G2:C18_A 2 -9.335 -0.383 0.245 -0.343 0.184 1 19 A 3 A 17 -3.492 A_C3:G17_A 3 -9.669 -0.246 0.260 -0.205 2.661 1 20 A 4 A 16 -10.341 A_A4:U16_A 4 -10.685 0.039 0.244 -0.141 0.826 1 19 A 5 A 15 -3.294 A_C5:G15_A 5 -8.932 -0.087 0.178 -0.346 1.009 1 19 A 6 A 14 -1.957 A_C6:G14_A 6 -7.903 0.310 0.252 -0.372 6.092 A 7 A 13 -2.722 A_U7:C13_A 7 -31.637 4.785 -0.393 -2.459 3.782 35.752 A A 1 2 -7.046 A A 19 18 3.732 -4.314 0.369 -0.824 AA_G1G2:C18C19_AA 1 -1.697 2.771 35.460 -0.625 -0.883 3.340 32.538 A A 2 3 4.490 A A 18 17 3.442 2.513 -0.332 -1.242 AA_G2C3:G17C18_AA 2 -0.092 0.165 32.443 -2.672 0.575 2.524 36.835 A A 3 4 22.743 A A 17 16 3.126 14.031 -0.799 -1.065 AA_C3A4:U16G17_AA 3 -0.604 0.979 34.139 -3.399 1.191 3.263 36.961 A A 4 5 16.914 A A 16 15 3.585 10.583 0.567 -0.665 AA_A4C5:G15U16_AA 4 0.210 -0.335 35.464 -2.575 -0.864 2.900 41.035 A A 5 6 24.788 A A 15 14 3.413 16.900 0.322 -0.572 AA_C5C6:G14G15_AA 5 -0.619 0.908 37.526 -2.681 -0.527 3.973 55.392 A A 6 7 -18.041 A A 14 13 4.056 -16.546 0.076 -0.277 AA_C6U7:C13G14_AA 6 2.659 -2.899 52.988 0.923 0.115 database_2 pdbx_database_status pdbx_struct_assembly pdbx_struct_oper_list repository Initial release Version format compliance Version format compliance Database references Derived calculations Other 1 0 1997-11-12 1 1 2008-03-24 1 2 2011-07-13 1 3 2022-02-16 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site Y BNL 1997-08-14 REL REL LEAST RESTRAINT VIOLATION, LOWEST ENERGY 70 10 NOESY-JR NOESY TOCSY 13C1H-HMQC 31P1H-HETCOR 31P1H-HETERO-HOMO-TOCSY 31P1H-HETERO-TOCSY-NOESY 6.55 298 K REFINEMENT DETAILS CAN BE FOUND IN THE JRNL CITATION ABOVE. SIMULATED ANNEALING, RESTRAINED MOLECULAR DYNAMICS BRUNGER refinement X-PLOR 3.1 structure solution X-PLOR 3.1 400 Varian UNITY 500 Bruker AM 600 Bruker AMX 750 Bruker AMX G 1 n 1 G 1 A G 2 n 2 G 2 A C 3 n 3 C 3 A A 4 n 4 A 4 A C 5 n 5 C 5 A C 6 n 6 C 6 A U 7 n 7 U 7 A C 8 n 8 C 8 A C 9 n 9 C 9 A U 10 n 10 U 10 A C 11 n 11 C 11 A G 12 n 12 G 12 A C 13 n 13 C 13 A G 14 n 14 G 14 A G 15 n 15 G 15 A U 16 n 16 U 16 A G 17 n 17 G 17 A C 18 n 18 C 18 A C 19 n 19 C 19 A author_defined_assembly 1 monomeric 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 1 A A O2 H41 U C 7 13 1.49 1 A A O6 H41 G C 1 19 1.57 1 A A H41 O6 C G 5 15 1.60 2 A A H41 O6 C G 6 14 1.59 3 A A O6 H41 G C 1 19 1.54 5 A A HO2' OP1 U C 10 11 1.49 5 A A H41 O6 C G 5 15 1.53 6 A A HO2' O4' G C 12 13 1.30 6 A A H41 O6 C G 6 14 1.53 7 A A HO2' OP1 U C 10 11 1.26 7 A A O2' H5'' G C 12 13 1.50 7 A A H41 O6 C G 6 14 1.55 8 A A H41 O6 C G 6 14 1.52 8 A A H2' O4' C G 13 14 1.54 9 A A H41 O6 C G 6 14 1.53 9 A A O2' H6 G C 12 13 1.59 10 A A O6 H41 G C 1 19 1.60 1 A G 1 0.059 SIDE CHAIN 1 A C 3 0.062 SIDE CHAIN 1 A A 4 0.052 SIDE CHAIN 1 A C 6 0.059 SIDE CHAIN 1 A G 17 0.049 SIDE CHAIN 2 A G 1 0.059 SIDE CHAIN 2 A C 6 0.059 SIDE CHAIN 2 A C 19 0.060 SIDE CHAIN 3 A G 1 0.055 SIDE CHAIN 3 A C 6 0.061 SIDE CHAIN 3 A G 17 0.050 SIDE CHAIN 4 A G 1 0.059 SIDE CHAIN 4 A C 3 0.058 SIDE CHAIN 4 A A 4 0.051 SIDE CHAIN 4 A C 6 0.057 SIDE CHAIN 4 A G 15 0.048 SIDE CHAIN 4 A G 17 0.051 SIDE CHAIN 4 A C 18 0.059 SIDE CHAIN 5 A G 1 0.061 SIDE CHAIN 5 A C 3 0.059 SIDE CHAIN 5 A C 6 0.059 SIDE CHAIN 5 A G 17 0.048 SIDE CHAIN 5 A C 19 0.059 SIDE CHAIN 6 A G 1 0.059 SIDE CHAIN 6 A C 3 0.058 SIDE CHAIN 6 A A 4 0.052 SIDE CHAIN 6 A G 17 0.049 SIDE CHAIN 6 A C 19 0.059 SIDE CHAIN 7 A G 1 0.051 SIDE CHAIN 7 A C 6 0.064 SIDE CHAIN 7 A G 15 0.052 SIDE CHAIN 7 A C 19 0.058 SIDE CHAIN 8 A G 1 0.057 SIDE CHAIN 8 A A 4 0.052 SIDE CHAIN 8 A C 5 0.058 SIDE CHAIN 8 A C 6 0.061 SIDE CHAIN 8 A G 15 0.049 SIDE CHAIN 8 A C 19 0.061 SIDE CHAIN 9 A G 1 0.061 SIDE CHAIN 9 A G 17 0.051 SIDE CHAIN 10 A G 1 0.057 SIDE CHAIN 10 A C 3 0.060 SIDE CHAIN 10 A C 6 0.059 SIDE CHAIN 10 A C 19 0.062 SIDE CHAIN 1 4.69 0.50 113.10 117.79 A A A N7 C8 N9 G G G 1 1 1 N 1 -2.83 0.40 106.40 103.57 A A A C8 N9 C4 G G G 1 1 1 N 1 4.53 0.50 113.10 117.63 A A A N7 C8 N9 G G G 2 2 2 N 1 -2.71 0.40 106.40 103.69 A A A C8 N9 C4 G G G 2 2 2 N 1 3.80 0.50 113.80 117.60 A A A N7 C8 N9 A A A 4 4 4 N 1 4.66 0.50 113.10 117.76 A A A N7 C8 N9 G G G 12 12 12 N 1 -2.93 0.40 106.40 103.47 A A A C8 N9 C4 G G G 12 12 12 N 1 4.69 0.50 113.10 117.79 A A A N7 C8 N9 G G G 14 14 14 N 1 -2.74 0.40 106.40 103.66 A A A C8 N9 C4 G G G 14 14 14 N 1 4.51 0.50 113.10 117.61 A A A N7 C8 N9 G G G 15 15 15 N 1 -2.63 0.40 106.40 103.77 A A A C8 N9 C4 G G G 15 15 15 N 1 4.64 0.50 113.10 117.74 A A A N7 C8 N9 G G G 17 17 17 N 1 -2.61 0.40 106.40 103.79 A A A C8 N9 C4 G G G 17 17 17 N 2 4.57 0.50 113.10 117.67 A A A N7 C8 N9 G G G 1 1 1 N 2 -2.77 0.40 106.40 103.63 A A A C8 N9 C4 G G G 1 1 1 N 2 4.53 0.50 113.10 117.63 A A A N7 C8 N9 G G G 2 2 2 N 2 -2.73 0.40 106.40 103.67 A A A C8 N9 C4 G G G 2 2 2 N 2 3.73 0.50 113.80 117.53 A A A N7 C8 N9 A A A 4 4 4 N 2 4.83 0.80 101.50 106.33 A A A C3' C2' C1' C C C 11 11 11 N 2 4.85 0.50 113.10 117.95 A A A N7 C8 N9 G G G 12 12 12 N 2 -2.87 0.40 106.40 103.53 A A A C8 N9 C4 G G G 12 12 12 N 2 4.65 0.50 113.10 117.75 A A A N7 C8 N9 G G G 14 14 14 N 2 -2.84 0.40 106.40 103.56 A A A C8 N9 C4 G G G 14 14 14 N 2 4.61 0.50 113.10 117.71 A A A N7 C8 N9 G G G 15 15 15 N 2 -2.77 0.40 106.40 103.63 A A A C8 N9 C4 G G G 15 15 15 N 2 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 17 17 17 N 2 -2.57 0.40 106.40 103.83 A A A C8 N9 C4 G G G 17 17 17 N 3 4.60 0.50 113.10 117.70 A A A N7 C8 N9 G G G 1 1 1 N 3 -2.76 0.40 106.40 103.64 A A A C8 N9 C4 G G G 1 1 1 N 3 4.57 0.50 113.10 117.67 A A A N7 C8 N9 G G G 2 2 2 N 3 -2.82 0.40 106.40 103.58 A A A C8 N9 C4 G G G 2 2 2 N 3 3.65 0.50 113.80 117.45 A A A N7 C8 N9 A A A 4 4 4 N 3 4.92 0.50 113.10 118.02 A A A N7 C8 N9 G G G 12 12 12 N 3 -2.97 0.40 106.40 103.43 A A A C8 N9 C4 G G G 12 12 12 N 3 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 14 14 14 N 3 -2.62 0.40 106.40 103.78 A A A C8 N9 C4 G G G 14 14 14 N 3 4.50 0.50 113.10 117.60 A A A N7 C8 N9 G G G 15 15 15 N 3 -2.66 0.40 106.40 103.74 A A A C8 N9 C4 G G G 15 15 15 N 3 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 17 17 17 N 3 -2.52 0.40 106.40 103.88 A A A C8 N9 C4 G G G 17 17 17 N 4 4.64 0.50 113.10 117.74 A A A N7 C8 N9 G G G 1 1 1 N 4 -2.84 0.40 106.40 103.56 A A A C8 N9 C4 G G G 1 1 1 N 4 4.46 0.50 113.10 117.56 A A A N7 C8 N9 G G G 2 2 2 N 4 -2.62 0.40 106.40 103.78 A A A C8 N9 C4 G G G 2 2 2 N 4 3.78 0.50 113.80 117.58 A A A N7 C8 N9 A A A 4 4 4 N 4 4.87 0.50 113.10 117.97 A A A N7 C8 N9 G G G 12 12 12 N 4 -2.61 0.40 106.40 103.79 A A A C8 N9 C4 G G G 12 12 12 N 4 4.62 0.50 113.10 117.72 A A A N7 C8 N9 G G G 14 14 14 N 4 -2.92 0.40 106.40 103.48 A A A C8 N9 C4 G G G 14 14 14 N 4 4.56 0.50 113.10 117.66 A A A N7 C8 N9 G G G 15 15 15 N 4 -2.68 0.40 106.40 103.72 A A A C8 N9 C4 G G G 15 15 15 N 4 4.53 0.50 113.10 117.63 A A A N7 C8 N9 G G G 17 17 17 N 4 -2.65 0.40 106.40 103.75 A A A C8 N9 C4 G G G 17 17 17 N 5 4.69 0.50 113.10 117.79 A A A N7 C8 N9 G G G 1 1 1 N 5 -2.83 0.40 106.40 103.57 A A A C8 N9 C4 G G G 1 1 1 N 5 4.45 0.50 113.10 117.55 A A A N7 C8 N9 G G G 2 2 2 N 5 -2.63 0.40 106.40 103.77 A A A C8 N9 C4 G G G 2 2 2 N 5 3.79 0.50 113.80 117.59 A A A N7 C8 N9 A A A 4 4 4 N 5 4.93 0.50 113.10 118.03 A A A N7 C8 N9 G G G 12 12 12 N 5 -2.87 0.40 106.40 103.53 A A A C8 N9 C4 G G G 12 12 12 N 5 4.70 0.50 113.10 117.80 A A A N7 C8 N9 G G G 14 14 14 N 5 -2.68 0.40 106.40 103.72 A A A C8 N9 C4 G G G 14 14 14 N 5 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 15 15 15 N 5 -2.81 0.40 106.40 103.59 A A A C8 N9 C4 G G G 15 15 15 N 5 4.53 0.50 113.10 117.63 A A A N7 C8 N9 G G G 17 17 17 N 5 -2.59 0.40 106.40 103.81 A A A C8 N9 C4 G G G 17 17 17 N 6 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 1 1 1 N 6 -2.84 0.40 106.40 103.56 A A A C8 N9 C4 G G G 1 1 1 N 6 4.49 0.50 113.10 117.59 A A A N7 C8 N9 G G G 2 2 2 N 6 -2.67 0.40 106.40 103.73 A A A C8 N9 C4 G G G 2 2 2 N 6 3.79 0.50 113.80 117.59 A A A N7 C8 N9 A A A 4 4 4 N 6 4.92 0.50 113.10 118.02 A A A N7 C8 N9 G G G 12 12 12 N 6 -2.81 0.40 106.40 103.59 A A A C8 N9 C4 G G G 12 12 12 N 6 4.72 0.50 113.10 117.82 A A A N7 C8 N9 G G G 14 14 14 N 6 -2.78 0.40 106.40 103.62 A A A C8 N9 C4 G G G 14 14 14 N 6 4.58 0.50 113.10 117.68 A A A N7 C8 N9 G G G 15 15 15 N 6 -2.68 0.40 106.40 103.72 A A A C8 N9 C4 G G G 15 15 15 N 6 4.62 0.50 113.10 117.72 A A A N7 C8 N9 G G G 17 17 17 N 6 -2.59 0.40 106.40 103.81 A A A C8 N9 C4 G G G 17 17 17 N 7 4.43 0.50 113.10 117.53 A A A N7 C8 N9 G G G 1 1 1 N 7 -2.62 0.40 106.40 103.78 A A A C8 N9 C4 G G G 1 1 1 N 7 4.61 0.50 113.10 117.71 A A A N7 C8 N9 G G G 2 2 2 N 7 -2.61 0.40 106.40 103.79 A A A C8 N9 C4 G G G 2 2 2 N 7 3.72 0.50 113.80 117.52 A A A N7 C8 N9 A A A 4 4 4 N 7 -2.40 0.40 105.80 103.40 A A A C8 N9 C4 A A A 4 4 4 N 7 4.85 0.50 113.10 117.95 A A A N7 C8 N9 G G G 12 12 12 N 7 -2.86 0.40 106.40 103.54 A A A C8 N9 C4 G G G 12 12 12 N 7 4.73 0.50 113.10 117.83 A A A N7 C8 N9 G G G 14 14 14 N 7 -2.92 0.40 106.40 103.48 A A A C8 N9 C4 G G G 14 14 14 N 7 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 15 15 15 N 7 -2.84 0.40 106.40 103.56 A A A C8 N9 C4 G G G 15 15 15 N 7 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 17 17 17 N 7 -2.67 0.40 106.40 103.73 A A A C8 N9 C4 G G G 17 17 17 N 8 4.62 0.50 113.10 117.72 A A A N7 C8 N9 G G G 1 1 1 N 8 -2.85 0.40 106.40 103.55 A A A C8 N9 C4 G G G 1 1 1 N 8 4.54 0.50 113.10 117.64 A A A N7 C8 N9 G G G 2 2 2 N 8 -2.79 0.40 106.40 103.61 A A A C8 N9 C4 G G G 2 2 2 N 8 3.81 0.50 113.80 117.61 A A A N7 C8 N9 A A A 4 4 4 N 8 4.92 0.50 113.10 118.02 A A A N7 C8 N9 G G G 12 12 12 N 8 -2.89 0.40 106.40 103.51 A A A C8 N9 C4 G G G 12 12 12 N 8 4.80 0.50 113.10 117.90 A A A N7 C8 N9 G G G 14 14 14 N 8 -2.78 0.40 106.40 103.62 A A A C8 N9 C4 G G G 14 14 14 N 8 4.57 0.50 113.10 117.67 A A A N7 C8 N9 G G G 15 15 15 N 8 -2.77 0.40 106.40 103.63 A A A C8 N9 C4 G G G 15 15 15 N 8 4.57 0.50 113.10 117.67 A A A N7 C8 N9 G G G 17 17 17 N 8 -2.56 0.40 106.40 103.84 A A A C8 N9 C4 G G G 17 17 17 N 9 4.63 0.50 113.10 117.73 A A A N7 C8 N9 G G G 1 1 1 N 9 -2.83 0.40 106.40 103.57 A A A C8 N9 C4 G G G 1 1 1 N 9 4.51 0.50 113.10 117.61 A A A N7 C8 N9 G G G 2 2 2 N 9 -2.71 0.40 106.40 103.69 A A A C8 N9 C4 G G G 2 2 2 N 9 3.77 0.50 113.80 117.57 A A A N7 C8 N9 A A A 4 4 4 N 9 4.78 0.50 113.10 117.88 A A A N7 C8 N9 G G G 12 12 12 N 9 -2.73 0.40 106.40 103.67 A A A C8 N9 C4 G G G 12 12 12 N 9 4.61 0.50 113.10 117.71 A A A N7 C8 N9 G G G 14 14 14 N 9 -2.73 0.40 106.40 103.67 A A A C8 N9 C4 G G G 14 14 14 N 9 4.54 0.50 113.10 117.64 A A A N7 C8 N9 G G G 15 15 15 N 9 -2.66 0.40 106.40 103.74 A A A C8 N9 C4 G G G 15 15 15 N 9 4.59 0.50 113.10 117.69 A A A N7 C8 N9 G G G 17 17 17 N 9 -2.62 0.40 106.40 103.78 A A A C8 N9 C4 G G G 17 17 17 N 10 4.60 0.50 113.10 117.70 A A A N7 C8 N9 G G G 1 1 1 N 10 -2.85 0.40 106.40 103.55 A A A C8 N9 C4 G G G 1 1 1 N 10 4.47 0.50 113.10 117.57 A A A N7 C8 N9 G G G 2 2 2 N 10 -2.59 0.40 106.40 103.81 A A A C8 N9 C4 G G G 2 2 2 N 10 3.73 0.50 113.80 117.53 A A A N7 C8 N9 A A A 4 4 4 N 10 5.00 0.50 113.10 118.10 A A A N7 C8 N9 G G G 12 12 12 N 10 -2.92 0.40 106.40 103.48 A A A C8 N9 C4 G G G 12 12 12 N 10 4.60 0.50 113.10 117.70 A A A N7 C8 N9 G G G 14 14 14 N 10 -2.76 0.40 106.40 103.64 A A A C8 N9 C4 G G G 14 14 14 N 10 4.52 0.50 113.10 117.62 A A A N7 C8 N9 G G G 15 15 15 N 10 -2.61 0.40 106.40 103.79 A A A C8 N9 C4 G G G 15 15 15 N 10 4.53 0.50 113.10 117.63 A A A N7 C8 N9 G G G 17 17 17 N 10 -2.59 0.40 106.40 103.81 A A A C8 N9 C4 G G G 17 17 17 N model building X-PLOR 3.1 refinement X-PLOR 3.1 phasing X-PLOR 3.1 THE STRUCTURE OF THE ISOLATED, CENTRAL HAIRPIN OF THE HDV ANTIGENOMIC RIBOZYME, NMR, 10 STRUCTURES 1 N N hydrog WATSON-CRICK A G 1 A N1 G 1 1_555 A C 19 A N3 C 19 1_555 hydrog WATSON-CRICK A G 1 A N2 G 1 1_555 A C 19 A O2 C 19 1_555 hydrog WATSON-CRICK A G 1 A O6 G 1 1_555 A C 19 A N4 C 19 1_555 hydrog WATSON-CRICK A G 2 A N1 G 2 1_555 A C 18 A N3 C 18 1_555 hydrog WATSON-CRICK A G 2 A N2 G 2 1_555 A C 18 A O2 C 18 1_555 hydrog WATSON-CRICK A G 2 A O6 G 2 1_555 A C 18 A N4 C 18 1_555 hydrog WATSON-CRICK A C 3 A N3 C 3 1_555 A G 17 A N1 G 17 1_555 hydrog WATSON-CRICK A C 3 A N4 C 3 1_555 A G 17 A O6 G 17 1_555 hydrog WATSON-CRICK A C 3 A O2 C 3 1_555 A G 17 A N2 G 17 1_555 hydrog WATSON-CRICK A A 4 A N1 A 4 1_555 A U 16 A N3 U 16 1_555 hydrog WATSON-CRICK A A 4 A N6 A 4 1_555 A U 16 A O4 U 16 1_555 hydrog WATSON-CRICK A C 5 A N3 C 5 1_555 A G 15 A N1 G 15 1_555 hydrog WATSON-CRICK A C 5 A N4 C 5 1_555 A G 15 A O6 G 15 1_555 hydrog WATSON-CRICK A C 5 A O2 C 5 1_555 A G 15 A N2 G 15 1_555 hydrog WATSON-CRICK A C 6 A N3 C 6 1_555 A G 14 A N1 G 14 1_555 hydrog WATSON-CRICK A C 6 A N4 C 6 1_555 A G 14 A O6 G 14 1_555 hydrog WATSON-CRICK A C 6 A O2 C 6 1_555 A G 14 A N2 G 14 1_555 hydrog U-C MISPAIR A U 7 A O2 U 7 1_555 A C 13 A N4 C 13 1_555 RNA CENTRAL LOOP, HEPATITIS DELTA VIRUS, RIBOZYME, RNA HAIRPIN, RNA 1ATO PDB 1 1ATO 1 19 1ATO 1 19 1ATO A 1 1 19 1 P 1