HEADER TOXIN 21-MAY-03 1PE4 TITLE SOLUTION STRUCTURE OF TOXIN CN12 FROM CENTRUROIDES NOXIUS TITLE 2 ALFA SCORPION TOXIN ACTING ON SODIUM CHANNELS. NMR TITLE 3 STRUCTURE COMPND MOL_ID: 1; COMPND 2 MOLECULE: NEUROTOXIN CN11; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CN12 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CENTRUROIDES NOXIUS; SOURCE 3 ORGANISM_COMMON: MEXICAN SCORPION; SOURCE 4 ORGANISM_TAXID: 6878; SOURCE 5 SECRETION: VENOM; SOURCE 6 OTHER_DETAILS: TOXIN OBTAINED DIRECTLY FROM VENOM OF SOURCE 7 CENTRUROIDES NOXIUS. ACTIVITY IS VERY LOW, HOWEVER CN12 SOURCE 8 HAS SOME REQUIREMENTS FOR BEING A VERY ACTIVE TOXIN. KEYWDS TOXIN, SCORPION TOXIN, CENTRUROIDES NOXIUS, SODIUM CHANNELS KEYWDS 2 ALPHA TOXIN EXPDTA SOLUTION NMR NUMMDL 19 MDLTYP MINIMIZED AVERAGE AUTHOR F.DEL RIO-PORTILLA,E.HERNANDEZ-MARIN,G.PIMIENTA,F.V.CORONAS, AUTHOR 2 F.Z.ZAMUDIO,R.C.RODRGUEZ DE LA VEGA,E.WANKE,L.D.POSSANI REVDAT 3 24-FEB-09 1PE4 1 VERSN REVDAT 2 10-AUG-04 1PE4 1 JRNL REVDAT 1 25-MAY-04 1PE4 0 JRNL AUTH F.DEL RIO-PORTILLA,E.HERNANDEZ-MARIN,G.PIMIENTA, JRNL AUTH 2 F.V.CORONAS,F.Z.ZAMUDIO,R.C.RODRGUEZ DE LA VEGA, JRNL AUTH 3 E.WANKE,L.D.POSSANI JRNL TITL NMR SOLUTION STRUCTURE OF CN12, A NOVEL PEPTIDE JRNL TITL 2 FROM THE MEXICAN SCORPION CENTRUROIDES NOXIUS WITH JRNL TITL 3 A TYPICAL BETA-TOXIN SEQUENCE BUT WITH ALPHA-LIKE JRNL TITL 4 PHYSIOLOGICAL ACTIVITY. JRNL REF EUR.J.BIOCHEM. V. 271 2504 2004 JRNL REFN ISSN 0014-2956 JRNL PMID 15182366 JRNL DOI 10.1111/J.1432-1033.2004.04181.X REMARK 1 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: SEE JOURNAL REFERENCE REMARK 4 REMARK 4 1PE4 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-MAY-03. REMARK 100 THE RCSB ID CODE IS RCSB019265. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 300; 300 REMARK 210 PH : 3.1; 3.1 REMARK 210 IONIC STRENGTH : NONE; NONE REMARK 210 PRESSURE : AMBIENT; AMBIENT REMARK 210 SAMPLE CONTENTS : 0.6 MM IN H2O/D2O 90:10%;; REMARK 210 0.6 MM IN 100% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : DQF COSY, 2D TOCSY, AND 2D REMARK 210 NOSEY, DQF-COSY, 2D TOCSY, AND REMARK 210 2D NOESY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : UNITY PLUS REMARK 210 SPECTROMETER MANUFACTURER : VARIAN REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NMRPIPE 1, VNMR 6.1C REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 250 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 19 REMARK 210 CONFORMERS, SELECTION CRITERIA : NO RESTRAINT VIOLATIONS LESS REMARK 210 THAN 0.2 ANGSTROMS AND MIMINUM REMARK 210 ENERGY LESS THAN 115.0 KCAL/ REMARK 210 MOL BEST REPRESENTATIVE REMARK 210 CONFORMER IN THIS ENSEMBLE: 1 REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1 REMARK 210 REMARK 210 REMARK: THE STRUCTURE WAS DETERMINED USING HOMONUCLEAR 1H-1H 2D REMARK 210 NMR ON THE NATURAL TOXIN EXTRACTED FROM THE SCORPION VENOM REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 1 CYS A 11 149.36 -176.26 REMARK 500 1 LYS A 12 -70.65 -94.89 REMARK 500 1 PHE A 13 -154.28 -116.05 REMARK 500 1 CYS A 15 109.19 59.10 REMARK 500 1 SER A 16 111.64 -162.04 REMARK 500 1 ASN A 22 54.34 -117.25 REMARK 500 1 LYS A 31 -73.13 -103.58 REMARK 500 1 ASP A 36 32.06 -99.56 REMARK 500 1 TYR A 41 -57.92 -124.15 REMARK 500 1 ALA A 42 -148.12 -96.14 REMARK 500 1 THR A 54 -175.56 -60.75 REMARK 500 1 LEU A 56 85.93 -162.54 REMARK 500 1 TRP A 57 24.79 -146.20 REMARK 500 1 ASP A 59 -107.33 -94.45 REMARK 500 1 CYS A 65 -95.95 -56.23 REMARK 500 2 LEU A 6 85.13 42.96 REMARK 500 2 ALA A 7 -81.09 -38.91 REMARK 500 2 SER A 8 -161.28 -59.91 REMARK 500 2 LYS A 12 -82.26 -119.85 REMARK 500 2 CYS A 15 28.70 -179.86 REMARK 500 2 ASN A 22 59.09 -176.10 REMARK 500 2 PRO A 23 36.00 -86.60 REMARK 500 2 ASN A 26 -70.88 -61.86 REMARK 500 2 ASP A 36 -70.47 -173.41 REMARK 500 2 TYR A 41 -57.61 -123.84 REMARK 500 2 ALA A 42 -150.01 -91.37 REMARK 500 2 HIS A 49 67.84 65.53 REMARK 500 2 VAL A 50 -43.55 -156.87 REMARK 500 2 GLU A 52 30.27 -84.66 REMARK 500 2 TRP A 57 27.96 -158.87 REMARK 500 2 ASP A 59 -119.22 -94.31 REMARK 500 2 THR A 62 -175.29 -62.86 REMARK 500 2 CYS A 65 -155.12 -57.06 REMARK 500 2 ARG A 66 87.86 -62.57 REMARK 500 3 ASP A 2 170.64 -48.93 REMARK 500 3 ALA A 7 -95.81 -17.51 REMARK 500 3 SER A 8 -149.42 -63.39 REMARK 500 3 CYS A 11 121.71 -171.78 REMARK 500 3 LYS A 12 -80.38 -116.00 REMARK 500 3 PHE A 13 -163.15 -107.04 REMARK 500 3 CYS A 15 127.24 60.35 REMARK 500 3 SER A 16 -179.13 179.27 REMARK 500 3 ASN A 21 -138.42 -81.71 REMARK 500 3 LYS A 31 -66.13 -103.88 REMARK 500 3 TYR A 41 -95.33 -123.67 REMARK 500 3 ALA A 42 -116.75 -97.01 REMARK 500 3 TRP A 57 80.76 -160.82 REMARK 500 3 ASP A 59 -151.53 -94.45 REMARK 500 3 SER A 60 -75.84 -74.16 REMARK 500 3 CYS A 65 173.50 54.98 REMARK 500 4 LEU A 6 91.00 41.05 REMARK 500 4 ALA A 7 -77.42 -38.47 REMARK 500 4 CYS A 11 88.12 -170.04 REMARK 500 4 LYS A 12 -78.09 -89.42 REMARK 500 4 PHE A 13 -147.84 -115.42 REMARK 500 4 CYS A 15 3.74 81.61 REMARK 500 4 SER A 16 80.68 -65.58 REMARK 500 4 LEU A 18 93.91 -57.61 REMARK 500 4 GLU A 20 104.62 -56.27 REMARK 500 4 ASN A 22 73.81 46.82 REMARK 500 4 SER A 35 72.70 -104.91 REMARK 500 4 ASP A 36 -74.25 -146.30 REMARK 500 4 TYR A 41 -109.13 -123.90 REMARK 500 4 ALA A 42 -109.57 -96.54 REMARK 500 4 VAL A 50 -46.80 -142.28 REMARK 500 4 GLU A 52 -149.97 -61.72 REMARK 500 4 THR A 54 -166.78 -62.31 REMARK 500 4 TRP A 57 31.81 -161.45 REMARK 500 4 ASP A 59 -118.40 -92.73 REMARK 500 4 THR A 62 -90.63 -90.91 REMARK 500 4 CYS A 65 -170.49 65.36 REMARK 500 5 ASP A 2 -178.51 -65.48 REMARK 500 5 LEU A 6 81.60 39.83 REMARK 500 5 ALA A 7 -79.87 -36.69 REMARK 500 5 ASN A 9 66.82 -68.51 REMARK 500 5 LYS A 12 -67.30 -104.79 REMARK 500 5 PHE A 13 -157.40 -115.92 REMARK 500 5 ASN A 22 56.51 -168.85 REMARK 500 5 PRO A 23 41.40 -87.03 REMARK 500 5 LYS A 31 -76.23 -98.59 REMARK 500 5 TYR A 41 -72.84 -130.64 REMARK 500 5 ALA A 42 -145.22 -96.69 REMARK 500 5 GLU A 52 -151.20 -62.05 REMARK 500 5 TRP A 57 30.06 -161.81 REMARK 500 5 ASP A 59 -116.32 -94.47 REMARK 500 5 THR A 62 -173.61 -60.82 REMARK 500 5 PRO A 64 34.93 -86.94 REMARK 500 5 CYS A 65 -157.41 -80.41 REMARK 500 5 ARG A 66 179.12 -59.66 REMARK 500 6 ASP A 2 178.10 -57.35 REMARK 500 6 LEU A 6 77.27 40.53 REMARK 500 6 ALA A 7 -83.65 -34.29 REMARK 500 6 SER A 8 -162.93 -69.91 REMARK 500 6 CYS A 11 114.44 -172.73 REMARK 500 6 LYS A 12 -81.22 -113.35 REMARK 500 6 PHE A 13 -153.78 -104.87 REMARK 500 6 CYS A 15 -119.27 69.36 REMARK 500 6 SER A 16 18.30 59.73 REMARK 500 6 LEU A 18 84.30 -56.40 REMARK 500 6 LYS A 31 -76.22 -134.52 REMARK 500 6 SER A 35 -165.21 -127.54 REMARK 500 6 ASP A 36 -44.25 -156.81 REMARK 500 6 THR A 44 -176.61 -176.73 REMARK 500 6 GLU A 52 66.90 -69.58 REMARK 500 6 TRP A 57 42.77 -167.45 REMARK 500 6 ASP A 59 -112.13 -94.62 REMARK 500 6 THR A 62 -97.84 -91.03 REMARK 500 6 CYS A 65 125.95 62.71 REMARK 500 6 ARG A 66 -179.53 53.41 REMARK 500 7 ASN A 9 87.74 -58.73 REMARK 500 7 PHE A 13 -165.60 -110.21 REMARK 500 7 SER A 16 -78.45 -72.36 REMARK 500 7 LEU A 18 82.82 -61.94 REMARK 500 7 ASN A 22 66.06 179.30 REMARK 500 7 TYR A 41 -75.21 -123.84 REMARK 500 7 ALA A 42 -147.04 -96.85 REMARK 500 7 ALA A 51 -73.80 -62.93 REMARK 500 7 ASP A 59 -146.08 -94.37 REMARK 500 7 THR A 62 -179.11 -60.83 REMARK 500 7 CYS A 65 -170.00 47.30 REMARK 500 8 PRO A 5 -16.37 -47.66 REMARK 500 8 LEU A 6 91.72 44.23 REMARK 500 8 ALA A 7 -71.40 -42.65 REMARK 500 8 SER A 8 -164.19 -58.75 REMARK 500 8 CYS A 11 120.16 -178.78 REMARK 500 8 LYS A 12 -76.95 -106.17 REMARK 500 8 PHE A 13 -153.82 -105.02 REMARK 500 8 CYS A 15 26.32 -177.06 REMARK 500 8 GLU A 20 -179.08 -58.39 REMARK 500 8 ASN A 21 -136.50 -81.67 REMARK 500 8 LYS A 31 -75.78 -108.44 REMARK 500 8 ASP A 36 -70.90 -166.75 REMARK 500 8 TYR A 41 -94.15 -123.69 REMARK 500 8 ALA A 42 -121.50 -96.94 REMARK 500 8 THR A 44 155.03 173.02 REMARK 500 8 HIS A 49 64.07 74.90 REMARK 500 8 VAL A 50 -38.81 -153.22 REMARK 500 8 ALA A 51 -71.23 -67.77 REMARK 500 8 LEU A 56 113.67 -169.41 REMARK 500 8 TRP A 57 31.17 -164.17 REMARK 500 8 ASP A 59 -118.17 -93.87 REMARK 500 8 THR A 62 -169.29 -60.68 REMARK 500 8 PRO A 64 43.02 -82.65 REMARK 500 8 CYS A 65 -78.44 -57.17 REMARK 500 9 ASP A 2 179.97 -54.80 REMARK 500 9 LEU A 6 28.05 45.95 REMARK 500 9 ALA A 7 -115.85 27.51 REMARK 500 9 SER A 8 -107.35 -59.37 REMARK 500 9 ASN A 9 -157.60 -89.75 REMARK 500 9 LYS A 12 -79.08 -120.00 REMARK 500 9 PHE A 13 -164.51 -116.04 REMARK 500 9 CYS A 15 154.71 58.12 REMARK 500 9 SER A 16 29.00 -168.48 REMARK 500 9 ASN A 22 62.59 -157.43 REMARK 500 9 ASP A 36 -92.46 -156.54 REMARK 500 9 TYR A 39 122.12 -179.62 REMARK 500 9 TYR A 41 -90.57 -123.25 REMARK 500 9 ALA A 42 -145.51 -96.90 REMARK 500 9 TRP A 43 71.03 -65.33 REMARK 500 9 THR A 54 -175.87 -57.26 REMARK 500 9 LEU A 56 -71.05 -123.48 REMARK 500 9 TRP A 57 65.82 61.71 REMARK 500 9 CYS A 65 156.83 69.39 REMARK 500 9 ARG A 66 -177.72 -53.99 REMARK 500 10 ASP A 2 73.98 -108.35 REMARK 500 10 TYR A 4 54.64 -154.54 REMARK 500 10 ALA A 7 -72.35 -39.40 REMARK 500 10 CYS A 11 129.25 77.36 REMARK 500 10 PHE A 13 -166.11 -115.97 REMARK 500 10 CYS A 15 32.01 -178.58 REMARK 500 10 PRO A 23 48.59 -80.73 REMARK 500 10 TYR A 41 -61.34 -123.66 REMARK 500 10 ALA A 42 -146.54 -96.39 REMARK 500 10 GLU A 48 55.19 -99.65 REMARK 500 10 HIS A 49 83.12 147.63 REMARK 500 10 VAL A 50 -24.54 -147.10 REMARK 500 10 ALA A 51 -72.77 -62.58 REMARK 500 10 GLU A 52 45.36 -84.20 REMARK 500 10 TRP A 57 26.91 -152.94 REMARK 500 10 ASP A 59 -110.48 -94.52 REMARK 500 10 CYS A 65 -96.49 -51.89 REMARK 500 11 ASP A 2 84.81 169.69 REMARK 500 11 TYR A 4 67.08 -154.18 REMARK 500 11 ALA A 7 -81.62 -23.29 REMARK 500 11 SER A 8 -149.72 -74.56 REMARK 500 11 CYS A 11 98.06 -172.85 REMARK 500 11 LYS A 12 -84.84 -89.52 REMARK 500 11 PHE A 13 -164.35 -105.90 REMARK 500 11 ASN A 21 69.07 -68.87 REMARK 500 11 ASN A 22 65.17 171.99 REMARK 500 11 PRO A 23 47.91 -79.78 REMARK 500 11 ASN A 26 -73.78 -54.96 REMARK 500 11 LYS A 31 -71.21 -131.34 REMARK 500 11 ASP A 36 31.22 -99.23 REMARK 500 11 TYR A 41 -68.10 -132.89 REMARK 500 11 ALA A 42 -147.49 -96.54 REMARK 500 11 THR A 44 -159.47 -165.58 REMARK 500 11 CYS A 45 131.69 -170.03 REMARK 500 11 ALA A 51 -79.72 -63.20 REMARK 500 11 LEU A 56 -67.65 -122.36 REMARK 500 11 TRP A 57 -166.38 70.86 REMARK 500 11 ASP A 59 -152.79 -68.51 REMARK 500 11 CYS A 65 176.56 73.66 REMARK 500 12 TYR A 4 73.53 -154.55 REMARK 500 12 LEU A 6 20.03 48.60 REMARK 500 12 ALA A 7 -90.90 27.17 REMARK 500 12 SER A 8 -152.58 -81.41 REMARK 500 12 LYS A 12 -83.01 -119.97 REMARK 500 12 PHE A 13 -159.42 -116.03 REMARK 500 12 CYS A 15 113.14 60.72 REMARK 500 12 SER A 16 -1.27 -146.19 REMARK 500 12 LYS A 31 -71.49 -90.33 REMARK 500 12 ASP A 36 -55.22 -179.91 REMARK 500 12 TYR A 41 -75.96 -123.94 REMARK 500 12 ALA A 42 -149.53 -96.60 REMARK 500 12 HIS A 49 80.99 159.40 REMARK 500 12 VAL A 50 -21.54 177.42 REMARK 500 12 ALA A 51 -75.00 -62.43 REMARK 500 12 GLU A 52 39.86 -84.35 REMARK 500 12 THR A 54 -168.02 -57.96 REMARK 500 12 LEU A 56 -85.02 -147.52 REMARK 500 12 TRP A 57 60.57 64.96 REMARK 500 12 ASP A 59 -137.79 -94.40 REMARK 500 12 THR A 62 -70.14 -91.18 REMARK 500 12 CYS A 65 -177.38 75.66 REMARK 500 12 ARG A 66 -79.25 -135.69 REMARK 500 13 ASP A 2 -176.83 -58.39 REMARK 500 13 TYR A 4 -60.84 -123.21 REMARK 500 13 LEU A 6 101.86 24.98 REMARK 500 13 ALA A 7 -79.93 -24.26 REMARK 500 13 CYS A 11 124.92 67.40 REMARK 500 13 PHE A 13 -154.36 -115.94 REMARK 500 13 CYS A 15 -115.33 68.55 REMARK 500 13 SER A 16 -63.63 73.41 REMARK 500 13 LYS A 31 -75.38 -85.44 REMARK 500 13 ASP A 36 -8.83 81.41 REMARK 500 13 TYR A 41 -75.06 -123.60 REMARK 500 13 ALA A 42 -146.49 -91.22 REMARK 500 13 THR A 44 165.08 175.43 REMARK 500 13 CYS A 47 -158.72 -144.59 REMARK 500 13 HIS A 49 34.57 70.85 REMARK 500 13 TRP A 57 -40.45 -152.63 REMARK 500 13 ASP A 59 -134.93 -94.38 REMARK 500 13 THR A 62 -176.41 -60.49 REMARK 500 13 PRO A 64 38.38 -84.68 REMARK 500 13 CYS A 65 -155.09 -86.53 REMARK 500 13 ARG A 66 -78.42 -42.38 REMARK 500 14 LEU A 6 72.97 41.89 REMARK 500 14 ALA A 7 -77.43 -34.77 REMARK 500 14 SER A 8 -156.74 -62.49 REMARK 500 14 LYS A 12 -88.38 -119.66 REMARK 500 14 PHE A 13 -145.53 -115.88 REMARK 500 14 CYS A 15 -129.93 68.68 REMARK 500 14 SER A 16 -148.62 69.30 REMARK 500 14 LEU A 18 94.33 -47.92 REMARK 500 14 ASN A 22 58.49 -143.42 REMARK 500 14 LYS A 31 -60.01 -97.37 REMARK 500 14 SER A 35 77.61 -104.96 REMARK 500 14 ASP A 36 -74.86 -133.26 REMARK 500 14 VAL A 55 50.78 -107.20 REMARK 500 14 TRP A 57 -53.23 -164.79 REMARK 500 14 ASP A 59 -159.91 -73.42 REMARK 500 14 CYS A 65 -162.88 38.77 REMARK 500 15 TYR A 4 69.57 -154.40 REMARK 500 15 LEU A 6 74.36 47.63 REMARK 500 15 ALA A 7 -76.93 -33.56 REMARK 500 15 SER A 8 -152.16 -60.42 REMARK 500 15 ASN A 9 32.38 -89.25 REMARK 500 15 LYS A 12 -79.84 -119.57 REMARK 500 15 PHE A 13 -150.87 -110.44 REMARK 500 15 CYS A 15 29.73 177.37 REMARK 500 15 ASN A 22 54.80 -140.31 REMARK 500 15 TYR A 41 -59.67 -125.63 REMARK 500 15 ALA A 42 -150.43 -96.37 REMARK 500 15 THR A 44 -161.40 -168.85 REMARK 500 15 LEU A 56 108.66 167.62 REMARK 500 15 TRP A 57 57.91 -151.84 REMARK 500 15 ASP A 59 -111.75 -94.44 REMARK 500 15 THR A 62 -122.56 -63.91 REMARK 500 15 PRO A 64 38.28 -80.37 REMARK 500 15 CYS A 65 -156.86 -62.06 REMARK 500 15 ARG A 66 82.75 -60.47 REMARK 500 16 ASP A 2 172.87 -48.21 REMARK 500 16 PRO A 5 85.53 -44.61 REMARK 500 16 ALA A 7 -101.84 19.48 REMARK 500 16 SER A 8 -156.33 -61.06 REMARK 500 16 PHE A 13 -164.33 -115.80 REMARK 500 16 CYS A 15 125.75 73.59 REMARK 500 16 SER A 16 86.91 -178.71 REMARK 500 16 PRO A 23 44.01 -81.21 REMARK 500 16 LYS A 31 -65.52 -92.27 REMARK 500 16 ASP A 36 -69.42 -165.15 REMARK 500 16 TYR A 41 -77.72 -127.06 REMARK 500 16 ALA A 42 -132.53 -96.87 REMARK 500 16 HIS A 49 34.09 75.21 REMARK 500 16 GLU A 52 -148.04 -67.50 REMARK 500 16 LEU A 56 64.34 -159.72 REMARK 500 16 TRP A 57 45.57 -100.65 REMARK 500 16 ASP A 59 -142.60 -94.39 REMARK 500 16 THR A 62 -78.06 -80.99 REMARK 500 16 CYS A 65 170.29 66.49 REMARK 500 17 LEU A 6 85.74 39.96 REMARK 500 17 LYS A 12 -82.55 -88.81 REMARK 500 17 PHE A 13 -166.11 -116.43 REMARK 500 17 CYS A 15 27.12 -177.11 REMARK 500 17 PRO A 23 35.73 -84.86 REMARK 500 17 LYS A 31 -74.11 -58.31 REMARK 500 17 SER A 35 60.75 -108.98 REMARK 500 17 ASP A 36 -63.45 -131.79 REMARK 500 17 TYR A 41 -53.05 -128.18 REMARK 500 17 ALA A 42 -149.26 -96.20 REMARK 500 17 ASP A 59 -116.94 -94.52 REMARK 500 17 PRO A 64 36.16 -89.21 REMARK 500 17 CYS A 65 -84.16 -82.45 REMARK 500 18 LEU A 6 22.03 46.04 REMARK 500 18 ALA A 7 -93.07 30.79 REMARK 500 18 SER A 8 -152.78 -88.63 REMARK 500 18 ASN A 9 83.33 -61.52 REMARK 500 18 LYS A 12 -135.90 -89.96 REMARK 500 18 PHE A 13 -157.96 -85.26 REMARK 500 18 CYS A 15 30.46 74.89 REMARK 500 18 GLU A 20 83.63 -55.24 REMARK 500 18 LYS A 31 -69.34 -121.66 REMARK 500 18 ASP A 36 -76.21 -139.67 REMARK 500 18 TYR A 41 -84.31 -123.78 REMARK 500 18 ALA A 42 -130.01 -86.74 REMARK 500 18 GLU A 52 33.13 -84.42 REMARK 500 18 TRP A 57 51.54 -155.76 REMARK 500 18 ASP A 59 -154.18 -94.27 REMARK 500 18 PRO A 64 -33.93 -37.50 REMARK 500 18 ARG A 66 -76.01 8.96 REMARK 500 19 TYR A 4 80.67 -154.24 REMARK 500 19 PRO A 5 -19.71 -45.49 REMARK 500 19 ALA A 7 -76.07 -33.61 REMARK 500 19 SER A 8 -159.63 -62.86 REMARK 500 19 LYS A 12 -88.96 -108.73 REMARK 500 19 PHE A 13 -168.16 -102.57 REMARK 500 19 CYS A 15 26.10 -155.41 REMARK 500 19 SER A 16 73.63 -65.01 REMARK 500 19 PRO A 23 49.52 -82.51 REMARK 500 19 ASP A 36 -82.97 -139.88 REMARK 500 19 TYR A 41 -56.68 -123.23 REMARK 500 19 ALA A 42 -133.00 -96.49 REMARK 500 19 LEU A 56 133.65 -179.16 REMARK 500 19 TRP A 57 44.78 -155.71 REMARK 500 19 ASP A 59 -109.44 -94.35 REMARK 500 19 CYS A 65 -168.47 -52.36 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1CN2 RELATED DB: PDB REMARK 900 SAME SECONDARY STRUCTURE AS NA+ CHANNEL TOXINS. REMARK 999 REMARK 999 SEQUENCE REMARK 999 AT THE TIME OF PROCESSING, NO REFERENCE REMARK 999 DATABASE SEQUENCE FOR THIS PROTEIN WAS REMARK 999 AVAILABLE. DBREF 1PE4 A 1 67 UNP P63019 SCX12_CENNO 1 67 SEQRES 1 A 67 ARG ASP GLY TYR PRO LEU ALA SER ASN GLY CYS LYS PHE SEQRES 2 A 67 GLY CYS SER GLY LEU GLY GLU ASN ASN PRO THR CYS ASN SEQRES 3 A 67 HIS VAL CYS GLU LYS LYS ALA GLY SER ASP TYR GLY TYR SEQRES 4 A 67 CYS TYR ALA TRP THR CYS TYR CYS GLU HIS VAL ALA GLU SEQRES 5 A 67 GLY THR VAL LEU TRP GLY ASP SER GLY THR GLY PRO CYS SEQRES 6 A 67 ARG SER HELIX 1 1 THR A 24 LYS A 32 1 9 SHEET 1 A 3 ASP A 2 GLY A 3 0 SHEET 2 A 3 TYR A 46 GLU A 48 -1 O CYS A 47 N GLY A 3 SHEET 3 A 3 GLY A 38 TYR A 39 -1 N TYR A 39 O TYR A 46 SSBOND 1 CYS A 11 CYS A 65 1555 1555 2.03 SSBOND 2 CYS A 15 CYS A 40 1555 1555 2.03 SSBOND 3 CYS A 25 CYS A 45 1555 1555 2.03 SSBOND 4 CYS A 29 CYS A 47 1555 1555 2.03 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL ENDMDL MASTER 426 0 0 1 3 0 0 6 0 0 0 6 END