| PDB | Chain | Name | Length | Cyclization | Rings | Disulfide | Type | Source | Method |
|---|---|---|---|---|---|---|---|---|---|
| 1D2L | A | LIPOPROTEIN RECEPTOR RELATED PROTEIN | 45 | SS | 3 | 3 | Natural | Homo Sapiens | SOLUTION NMR |
| 1D5Q | A | CHIMERIC MINI-PROTEIN | 27 | SS | 3 | 3 | Natural | Unknow | SOLUTION NMR |
| 1D6B | A | DEFENSIN-LIKE PEPTIDE-2 | 42 | SS | 3 | 3 | Natural | Ornithorhynchus Anatinus | SOLUTION NMR |
| 1D6G | A | CHOLECYSTOKININ TYPE A RECEPTOR | 47 | SS | 1 | 1 | Natural | Homo Sapiens | SOLUTION NMR |
| 1D7T | A | YNK-CONTRYPHAN | 8 | Sidechain | 1 | - | Non-natural | Synthetic Construct | SOLUTION NMR |
| 1DEC | A | DECORSIN | 39 | SS | 3 | 3 | Natural | Macrobdella Decora | SOLUTION NMR |
| 1DF6 | A | CYCLOVIOLACIN O1 | 30 | SS | 4 | 3 | Natural | Viola Odorata | SOLUTION NMR |
| 1DFN | A;B | DEFENSIN HNP-3 | 30 | SS | 3 | - | Natural | Homo Sapiens | X-RAY DIFFRACTION |
| 1DFY | A | CONTRYPHAN-SM | 8 | Sidechain | 1 | - | Non-natural | Conus Stercusmuscarum | SOLUTION NMR |
| 1DFZ | A | CONTRYPHAN-SM | 8 | Sidechain | 1 | - | Non-natural | Conus Stercusmuscarum | SOLUTION NMR |
| 1DG0 | A | DES[GLY1]-CONTRYPHAN-R | 7 | Sidechain | 1 | - | Non-natural | Conus Radiatus | SOLUTION NMR |
| 1DG2 | A | A-CONOTOXIN AUIB | 16 | SS | 2 | 2 | Natural | Conus Aulicus | SOLUTION NMR |
| 1DKC | A | ANTIFUNGAL PEPTIDE | 38 | SS | 3 | 3 | Natural | Phytolacca Americana | SOLUTION NMR |
| 1DL0 | A | J-ATRACOTOXIN-HV1C | 37 | SS | 4 | 4 | Natural | Unknow | SOLUTION NMR |
| 1DN2 | E;F | IMMUNOGLOBULIN LAMBDA HEAVY CHAIN | 14 | SS | 1 | - | Natural | Unknow | X-RAY DIFFRACTION |
| 1DU9 | A | BMP02 NEUROTOXIN | 28 | SS | 3 | 3 | Natural | Mesobuthus Martensii | SOLUTION NMR |
| 1DVA | X | DES-GLA FACTOR VIIA (HEAVY CHAIN) | 20 | SS | 1 | - | Natural | Unknow | X-RAY DIFFRACTION |
| 1DW4 | A | OMEGA-CONOTOXIN MVIIA | 26 | SS | 3 | 3 | Natural | Unknow | SOLUTION NMR |
| 1DW5 | A | OMEGA-CONOTOXIN MVIIA | 26 | SS | 3 | 3 | Natural | Unknow | SOLUTION NMR |
| 1E4Q | A | BETA-DEFENSIN 2 | 37 | SS | 3 | 3 | Natural | Homo Sapiens | SOLUTION NMR |
| 1E4R | A | BETA-DEFENSIN 8 | 35 | SS | 3 | 3 | Natural | Mus Musculus | SOLUTION NMR |
| 1E4S | A | BETA-DEFENSIN 1 | 36 | SS | 4 | 4 | Natural | Homo Sapiens | SOLUTION NMR |
| 1E4T | A | BETA-DEFENSIN 7 | 37 | SS | 3 | 3 | Natural | Mus Musculus | SOLUTION NMR |
| 1E4W | P | CYCLIC PEPTIDE | 7 | H2T | 1 | - | Natural | Synthetic Construct | X-RAY DIFFRACTION |
| 1E68 | A | AS-48 PROTEIN | 70 | H2T | 1 | - | Natural | Enterococcus Faecalis | SOLUTION NMR |
| 1E74 | A | ALPHA-CONOTOXIN IM1(R11E) | 13 | SS | 2 | 2 | Natural | Conus Imperialis | SOLUTION NMR |
| 1E75 | A | ALPHA-CONOTOXIN IM1(R7L) | 13 | SS | 2 | 2 | Natural | Conus Imperialis | SOLUTION NMR |
| 1E76 | A | ALPHA-CONOTOXIN IM1(D5N) | 13 | SS | 2 | 2 | Natural | Conus Imperialis | SOLUTION NMR |
| 1E8P | A | ENDOGLUCANASE 45A | 46 | SS | 2 | 2 | Natural | Piromyces Equi | SOLUTION NMR |
| 1E8Q | A | ENDOGLUCANASE 45A | 46 | SS | 2 | 2 | Natural | Piromyces Equi | SOLUTION NMR |
| 1EBA | C;D | PROTEIN (ERYTHROPOIETIN RECEPTOR) | 20 | SS | 1 | - | Non-natural | Unknow | X-RAY DIFFRACTION |
| 1EBP | C;D | EPO RECEPTOR | 20 | SS | 1 | - | Natural | Unknow | X-RAY DIFFRACTION |
| 1ECI | A;B | ECTATOMIN | 37 | SS | 1 | - | Natural | Ectatomma Tuberculatum | SOLUTION NMR |
| 1ED0 | A | VISCOTOXIN A3 | 46 | SS | 3 | 3 | Natural | Viscum Album | SOLUTION NMR |
| 1EDN | A | ENDOTHELIN-1 | 21 | SS | 2 | 2 | Natural | Homo Sapiens | X-RAY DIFFRACTION |
| 1EDP | A | ENDOTHELIN-1 PRECURSOR | 17 | SS | 2 | 2 | Natural | Homo Sapiens | SOLUTION NMR |
| 1EGT | A | THROMBOMODULIN | 17 | SS | 1 | 1 | Natural | Homo Sapiens | SOLUTION NMR |
| 1EHS | A | HEAT-STABLE ENTEROTOXIN B | 48 | SS | 2 | 2 | Natural | Escherichia Coli | SOLUTION NMR |
| 1EI0 | A | P8MTCP1 | 38 | SS | 2 | 2 | Natural | Unknow | SOLUTION NMR |
| 1EIT | A | MU-AGATOXIN-I | 37 | SS | 4 | 4 | Natural | Agelenopsis Aperta | SOLUTION NMR |
| 1EJG | A | CRAMBIN (PRO22,SER22/LEU25,ILE25) | 46 | SS | 3 | 3 | Natural | Crambe Hispanica Subsp Abyssinica | X-RAY DIFFRACTION |
| 1EMX | A | HETEROPODATOXIN 2 | 30 | SS | 3 | 3 | Natural | Heteropoda Venatoria | SOLUTION NMR |
| 1ERC | A | PHEROMONE ER-1 | 40 | SS | 3 | 3 | Natural | Euplotes Raikovi | SOLUTION NMR |
| 1ERD | A | PHEROMONE ER-2 | 40 | SS | 3 | 3 | Natural | Euplotes Raikovi | SOLUTION NMR |
| 1ERP | A | PHEROMONE ER-10 | 38 | SS | 3 | 3 | Natural | Euplotes Raikovi | SOLUTION NMR |
| 1ERY | A | PHEROMONE ER-11 | 39 | SS | 3 | 3 | Natural | Euplotes Raikovi | SOLUTION NMR |
| 1ETL | A | 5-BETA-MERCAPTOPROPIONATE HEAT-STABLE ENTEROTOXIN | 13 | SS | 3 | 2 | Non-natural | Escherichia Coli | X-RAY DIFFRACTION |
| 1EVR | A;C;E;G;I | INSULIN | 21 | SS | 1 | - | Natural | Unknow | X-RAY DIFFRACTION |
| 1EWS | A | RK-1 DEFENSIN | 32 | SS | 3 | 3 | Natural | Oryctolagus Cuniculus | SOLUTION NMR |
| 1EYO | A | CONOTOXIN TVIIA | 30 | SS | 3 | 3 | Non-natural | Unknow | SOLUTION NMR |