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PDB Chain Name Length Cyclization Rings Disulfide Type Source Method
2BC7 A ALPHA-CONOTOXIN IMI 12 SS 1 1 Non-natural Unknow SOLUTION NMR
2BCD B MOTUPORIN 5 H2T 1 - Non-natural Marine Sponge Thenonella Swinhoie Grey X-RAY DIFFRACTION
2BDS A BDS-I 43 SS 3 3 Natural Anemonia Sulcata SOLUTION NMR
2BDX B SERINE/THREONINE PROTEIN PHOSPHATASE PP1-GAMMA CATALYTIC SUBUNIT 7 Sidechain 1 - Non-natural Microcystis Aeruginosa X-RAY DIFFRACTION
2BEY A BIKK 16 SS 1 1 Natural Synthetic Construct SOLUTION NMR
2BI6 H BROMELAIN INHIBITOR VI 41 SS 2 2 Natural Ananas Comosus SOLUTION NMR
2BMT A TOXIN BMTX2 37 SS 3 3 Non-natural Mesobuthus Martensii SOLUTION NMR
2BR8 F;G;H;I;J SOLUBLE ACETYLCHOLINE RECEPTOR 17 SS 2 - Natural Conus Pennaceus X-RAY DIFFRACTION
2BTC I PROTEIN (TRYPSIN) 29 SS 3 3 Natural Cucurbita Pepo X-RAY DIFFRACTION
2BYP F;G;H;I;J SOLUBLE ACETYLCHOLINE RECEPTOR 12 SS 2 - Non-natural Conus Imperialis X-RAY DIFFRACTION
2C8Q A INSULIN A CHAIN 21 SS 1 1 Natural Homo Sapiens X-RAY DIFFRACTION
2C9T K;M;O;P;Q;R;S;T SOLUBLE ACETYLCHOLINE RECEPTOR 13 SS 2 - Natural Conus Imperialis X-RAY DIFFRACTION
2CBH A C-TERMINAL DOMAIN OF CELLOBIOHYDROLASE I 36 SS 2 2 Natural Hypocrea Jecorina SOLUTION NMR
2CCO A OMEGA-CONOTOXIN GVIA 28 SS 3 3 Non-natural Conus Geographus SOLUTION NMR
2CK0 P PROTEIN (IMMUNOGLOBULIN 11 SS 1 1 Natural Synthetic Construct X-RAY DIFFRACTION
2CK4 A POTASSIUM CHANNEL TOXIN ALPHA-KTX 3.7 38 SS 3 3 Natural Orthochirus Scrobiculosus SOLUTION NMR
2CK5 A POTASSIUM CHANNEL TOXIN ALPHA-KTX 3.7 31 SS 3 3 Natural Orthochirus Scrobiculosus SOLUTION NMR
2CQ7 A CYSTEINE-RICH SECRETORY PROTEIN-2 49 SS 3 3 Natural Homo Sapiens SOLUTION NMR
2CRD A CHARYBDOTOXIN 37 SS 3 3 Non-natural Leiurus Quinquestriatus Hebraeus SOLUTION NMR
2CTI A TRYPSIN INHIBITOR 29 SS 3 3 Natural Cucurbita Maxima SOLUTION NMR
2CV3 B ELASTASE 1 11 Sidechain 3 - Natural Flexibacter Sp X-RAY DIFFRACTION
2DCO A S1P4 FIRST EXTRACELLULAR LOOP PEPTIDOMIMETIC 34 SS 1 1 Natural Homo Sapiens SOLUTION NMR
2DCV A TACHYSTATIN-B1 42 SS 3 3 Natural Tachypleus Tridentatus SOLUTION NMR
2DCW A TACHYSTATIN-B2 42 SS 3 3 Natural Tachypleus Tridentatus SOLUTION NMR
2DDL A LEIUROTOXIN 33 SS 4 4 Natural Unknow SOLUTION NMR
2DJ9 A GROWTH-BLOCKING PEPTIDE 23 SS 1 1 Natural Mamestra Brassicae SOLUTION NMR
2DJC A GROWTH-BLOCKING PEPTIDE 23 SS 1 1 Natural Spodoptera Litura SOLUTION NMR
2DWF A PULMONARY SURFACTANT-ASSOCIATED PROTEIN B 34 SS 2 2 Natural Unknow SOLUTION NMR
2E1X A GAG-POL POLYPROTEIN (PR160GAG-POL) 27 SS 1 1 Natural Unknow SOLUTION NMR
2E2S A AGELENIN 36 SS 3 3 Natural Allagelena Opulenta SOLUTION NMR
2E3E A DEFENSIN, MUTANT DEF-BBB 45 SS 3 3 Natural Anopheles Gambiae SOLUTION NMR
2E3F A DEFENSIN, MUTANT DEF-BAT 43 SS 3 3 Natural Anopheles Gambiae SOLUTION NMR
2E3G A DEFENSIN, MUTANT DEF-DAA 40 SS 3 3 Natural Anopheles Gambiae SOLUTION NMR
2EEM A MYTILIN-B 34 SS 4 4 Natural Unknow SOLUTION NMR
2EFZ A M CONOTOXIN MR3.4 16 SS 3 3 Natural Unknow SOLUTION NMR
2EQH A GROWTH-BLOCKING PEPTIDE, SHORT FORM 23 SS 1 1 Natural Mythimna Separata SOLUTION NMR
2EQQ A GROWTH-BLOCKING PEPTIDE, LONG FORM 28 SS 1 1 Natural Mythimna Separata SOLUTION NMR
2EQT A GROWTH-BLOCKING PEPTIDE, LONG FORM 28 SS 1 1 Natural Mythimna Separata SOLUTION NMR
2ERI A CIRCULIN B 31 SS 4 3 Natural Chassalia Parviflora SOLUTION NMR
2ESL I;J;K;L;M;N PEPTIDYL-PROLYL CIS-TRANS ISOMERASE C 11 H2T 1 - Non-natural Tolypocladium Inflatum X-RAY DIFFRACTION
2ETI A TRYPSIN INHIBITOR II 28 SS 3 3 Natural Ecballium Elaterium SOLUTION NMR
2EW4 A MRIA 14 SS 2 2 Non-natural Conus Marmoreus SOLUTION NMR
2EYA A CRAMBIN 46 SS 3 3 Natural Crambe Hispanica Subsp Abyssinica SOLUTION NMR
2EYB A CRAMBIN 46 SS 3 3 Natural Crambe Hispanica Subsp Abyssinica SOLUTION NMR
2EYC A CRAMBIN 46 SS 3 3 Natural Crambe Hispanica Subsp Abyssinica SOLUTION NMR
2EYD A CRAMBIN 46 SS 3 3 Natural Crambe Hispanica Subsp Abyssinica SOLUTION NMR
2F2I A KALATA-B1 29 SS 3 3 Natural Unknow SOLUTION NMR
2F2J A KALATA-B1 29 SS 3 3 Natural Unknow SOLUTION NMR
2FHW A RELAXIN 3 (PRORELAXIN H3) (INSULIN-LIKE PEPTIDE INSL7) (INSULIN-LIKE PEPTIDE 7) 24 SS 1 1 Natural Unknow SOLUTION NMR
2FLG A MEROZOITE SURFACE PROTEIN 1 49 SS 3 3 Natural Unknow SOLUTION NMR