| 1 | 4NLF|1|A (rep) | | 23S ribosomal RNA Sarcin Ricin Loop | | | | 2'-trifluoromethylthio-2'-deoxycytidine-modified SRL | X-ray diffraction | 1 | 27 | 2014-11-19 |
| 2 | 5D99|1|A | | RNA (27-MER) hairpin from sarcin-ricin domain of E. coli 23S rRNA | Enterobacteria phage L1 | | | 3DW4 redetermined by direct methods starting from random phase angles | X-ray diffraction | 0.97 | 27 | 2016-04-13 |
| 3 | 6Y0Y|1|A | | RNA (27-MER) | synthetic construct | | | Sarcin Ricin Loop, mutant C2666U | X-ray diffraction | 0.95 | 27 | 2021-02-17 |
| 4 | 7QP2|1|A | | RNA (27-MER) | synthetic construct | | | 1-deazaguanosine modified-RNA Sarcin Ricin Loop | X-ray diffraction | 0.9 | 27 | 2022-07-20 |
| 5 | 1Q9A|1|A | | Sarcin/ricin 23S rRNA | | | | Crystal structure of the sarcin/ricin domain from E.coli 23S rRNA at 1.04 resolution | X-ray diffraction | 1.04 | 27 | 2003-11-25 |
| 6 | 6ZYB|1|A | | Sarcin-Ricin Loop RNA from Ecoli with a C2667-2'-OCF3 modification | synthetic construct | | | Sarcin-Ricin Loop RNA from Ecoli with a C2667-2'-OCF3 modification | X-ray diffraction | 0.9 | 27 | 2020-12-16 |
| 7 | 4NMG|1|A | | 23S ribosomal RNA Sarcin Ricin Loop | | | | 2'-Trifluoromethylthio-2'-deoxyuridine-modified SRL | X-ray diffraction | 1.01 | 27 | 2014-11-19 |
| 8 | 3DW4|1|A | | Sarcin/Ricin Domain from E. Coli 23 S rRNA | | | | Crystal Structure of the Sarcin/Ricin Domain from E. COLI 23 S rRNA, U2650-OCH3 modified | X-ray diffraction | 0.97 | 27 | 2009-03-24 |
| 9 | 3DW6|1|A | | Sarcin/Ricin Domain from E. Coli 23 S rRNA | | | | Crystal Structure of the Sarcin/Ricin Domain from E. COLI 23 S rRNA, U2650-SECH3 modified | X-ray diffraction | 1 | 27 | 2009-03-24 |
| 10 | 4Y27|1|A | | 27-mer 23S Sarcin-Ricil Loop | Escherichia coli | | | E.coli 23S Sarcin-Ricil Loop, modified with a 2-Me on G2661 and a methylphosphonate on A2662 | X-ray diffraction | 1 | 27 | 2015-11-18 |
| 11 | 7L3R|1|A | | RNA (27-MER) | synthetic construct | | | 23S Sarcin Ricin Loop with a 3-deazapurine A2670 | X-ray diffraction | 1.01 | 27 | 2021-05-05 |
| 12 | 7JJE|1|A | | RNA (27-MER) | synthetic construct | | | Sarcin-ricin loop with guanosine dithiophosphate residue. | X-ray diffraction | 1.25 | 27 | 2020-12-23 |
| 13 | 4NXH|1|A | | 23S ribosomal RNA Sarcin Ricin Loop | Escherichia coli | | | 2'-Trifluoromethylthiouridine-modified E. coli 23S rRNA Sarcin Ricin Loop | X-ray diffraction | 1.16 | 27 | 2014-12-10 |
| 14 | 9RB4|1|A | | RNA (27-MER) | synthetic construct | | | Ecoli Sarcin Ricin Loop (SLR) including a Kappa-Xanthosine base pair | X-ray diffraction | 1 | 26 | 2026-06-03 |
| 15 | 3DVZ|1|A | | Sarcin/Ricin Domain from E. Coli 23 S rRNA | | | | Crystal Structure of the Sarcin/Ricin Domain from E. coli 23 S rRNA | X-ray diffraction | 1 | 27 | 2009-03-24 |
| 16 | 3S7C|1|A | | Ecoli 23 S rRNA Sarcin Ricin loop | | | | Crystal structure of a 2'-azido-uridine-modified RNA | X-ray diffraction | 1.1 | 27 | 2012-04-11 |
| 17 | 5NQI|1|A | | E.Coli 27-mer SRL RNA | Escherichia coli | | | E.coli 16S rRNA Sarcin-Ricin Loop containing a 5-hydroxymethylcytosine modification | X-ray diffraction | 0.85 | 27 | 2017-07-26 |
| 18 | 5MRX|1|A | | RNA (27-MER) | Escherichia coli | | | 27-nt SRL with a 5-hydroxymethyl cytidine modification | X-ray diffraction | 0.85 | 27 | 2018-01-17 |
| 19 | 3DW5|1|A | | Sarcin/Ricin Domain from E. Coli 23 S rRNA | | | | Crystal Structure of the Sarcin/Ricin Domain from E. COLI 23S rRNA, U2656-OCH3 modified | X-ray diffraction | 0.96 | 27 | 2009-03-24 |
| 20 | 7QSH|1|A | | 23S ribosomal RNA Sarcin Ricin Loop 27-nucleotide fragment | synthetic construct | | | 23S ribosomal RNA Sarcin Ricin Loop 27-nt fragment containing a Xanthosine residue at position 2648 | X-ray diffraction | 0.86 | 25 | 2023-01-25 |
| 21 | 3DW7|1|A | | Sarcin/Ricin Domain from E. Coli 23 S rRNA | | | | Crystal Structure of the Sarcin/Ricin Domain from E. COLI 23 S rRNA, U2656-SeCH3 modified | X-ray diffraction | 1 | 27 | 2009-03-24 |
| 22 | 3S8U|1|A | | Ecoli 23 S rRNA Sarcin Ricin loop | Escherichia coli | | | Crystal structure of a 2-azido-adenine-modified RNA | X-ray diffraction | 1.2 | 27 | 2012-04-11 |
| 23 | 483D|1|A | | SARCIN/RICIN RRNA DOMAIN | | | | CRYSTAL STRUCTURE OF THE SARCIN/RICIN DOMAIN FROM E. COLI 23 S RRNA | X-ray diffraction | 1.11 | 27 | 1999-10-08 |
| 24 | 7JJD|1|A | | RNA (27-MER) | synthetic construct | | | Sarcin-ricin loop with guanosine monothiophosphate residue. | X-ray diffraction | 1.21 | 27 | 2020-12-23 |
| 25 | 1MSY|1|A | | SARCIN/RICIN DOMAIN FROM 23 S RRNA | | | | GUAA tetraloop mutant of Sarcin/Ricin domain from E. Coli 23 S rRNA | X-ray diffraction | 1.41 | 27 | 2003-02-25 |
| 26 | 480D|1|A | | SARCIN/RICIN DOMAIN FROM 23 S RRNA | | | | CRYSTAL STRUCTURE OF THE SARCIN/RICIN DOMAIN FROM E. COLI 23 S RRNA | X-ray diffraction | 1.5 | 27 | 1999-10-08 |
| 27 | 6Y0T|1|B | | RNA (27-MER) | synthetic construct | | | Sarcin Ricin Loop, mutant C2666A U2653G C2667A | X-ray diffraction | 1.393 | 27 | 2021-02-17 |
| 28 | 6Y0T|1|A | | RNA (27-MER) | synthetic construct | | | Sarcin Ricin Loop, mutant C2666A U2653G C2667A | X-ray diffraction | 1.393 | 27 | 2021-02-17 |
| 29 | 7JJF|1|A | | RNA/DNA (27-mer) | Escherichia coli | | | Sarcin-ricin loop with modified residue. | X-ray diffraction | 1.2 | 27 | 2020-12-23 |
| 30 | 7M3V|1|A | | RNA (27-MER) | synthetic construct | | | RNA bulged-G motif | X-ray diffraction | 2.19 | 27 | 2022-03-23 |
| 31 | 7EEN|1|A | | DNA/RNA (27-MER) | synthetic construct | | | Bulged-G motif composed of RNA, DNA and 2'-O-methyl RNA | X-ray diffraction | 1.7 | 26 | 2022-03-23 |
| 32 | 7EEN|1|B | | DNA/RNA (27-MER) | synthetic construct | | | Bulged-G motif composed of RNA, DNA and 2'-O-methyl RNA | X-ray diffraction | 1.7 | 27 | 2022-03-23 |
| 33 | 7EEN|1|D | | DNA/RNA (27-MER) | synthetic construct | | | Bulged-G motif composed of RNA, DNA and 2'-O-methyl RNA | X-ray diffraction | 1.7 | 26 | 2022-03-23 |
| 34 | 7EEN|1|C | | DNA/RNA (27-MER) | synthetic construct | | | Bulged-G motif composed of RNA, DNA and 2'-O-methyl RNA | X-ray diffraction | 1.7 | 26 | 2022-03-23 |
| 35 | 1JBS|1|D | | 29-mer sarcin/ricin domain RNA analog | | | | Crystal structure of ribotoxin restrictocin and a 29-mer SRD RNA analog | X-ray diffraction | 1.97 | 29 | 2001-10-26 |
| 36 | 1JBS|1|C | | 29-mer sarcin/ricin domain RNA analog | | | | Crystal structure of ribotoxin restrictocin and a 29-mer SRD RNA analog | X-ray diffraction | 1.97 | 29 | 2001-10-26 |
| 37 | 6ZXZ|1|B | | Sarcin-Ricin Loop RNA from Ecoli with a A2670-2'-OCF3 modification | synthetic construct | | | Sarcin-Ricin Loop RNA from Ecoli with a A2670-2'-OCF3 modification | X-ray diffraction | 2.44 | 26 | 2020-12-16 |
| 38 | 1JBR|1|D | | 31-mer SRD RNA analog | | | | Crystal Structure of the Ribotoxin Restrictocin and a 31-mer SRD RNA Inhibitor | X-ray diffraction | 2.15 | 31 | 2001-10-26 |
| 39 | 6ZXZ|1|A | | Sarcin-Ricin Loop RNA from Ecoli with a A2670-2'-OCF3 modification | synthetic construct | | | Sarcin-Ricin Loop RNA from Ecoli with a A2670-2'-OCF3 modification | X-ray diffraction | 2.44 | 26 | 2020-12-16 |
| 40 | 6ZXZ|1|C | | Sarcin-Ricin Loop RNA from Ecoli with a A2670-2'-OCF3 modification | synthetic construct | | | Sarcin-Ricin Loop RNA from Ecoli with a A2670-2'-OCF3 modification | X-ray diffraction | 2.44 | 26 | 2020-12-16 |
| 41 | 7UCR|1|A | | Sarcin-Ricin loop RNA | Homo sapiens | | | Joint X-ray/neutron structure of the Sarcin-Ricin loop RNA | X-ray diffraction | 1 | 27 | 2022-07-20 |