HEADER ION CHANNEL INHIBITOR 10-APR-06 2CK4 TITLE SOLUTION STRUCTURE OF AOSK1 COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL TOXIN ALPHA-KTX 3.7; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TOXIN OSK1, OSK-1; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: ORTHOCHIRUS SCROBICULOSUS; SOURCE 4 ORGANISM_COMMON: CENTRAL ASIAN SCORPION; SOURCE 5 ORGANISM_TAXID: 6892 KEYWDS ION CHANNEL INHIBITOR, POTASSIUM CHANNEL INHIBITOR, ION CHANNEL KEYWDS 2 BLOCKER, IONIC CHANNEL INHIBITOR, OSK1, TOXIN, NEUROTOXIN, SCORPIO KEYWDS 3 TOXIN EXPDTA SOLUTION NMR NUMMDL 20 AUTHOR S.ALPHONSE,S.MOUHAT,J.M.SABATIER,H.DARBON,C.BERNARD REVDAT 3 06-NOV-24 2CK4 1 REMARK REVDAT 2 24-FEB-09 2CK4 1 VERSN REVDAT 1 15-MAY-07 2CK4 0 JRNL AUTH S.ALPHONSE,S.MOUHAT,J.M.SABATIER,H.DARBON,C.BERNARD JRNL TITL SOLUTION STRUCTURE OF TWO ANALOGUES OF THE OSK1 TOXIN JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : ARIA REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS, GROSSE- REMARK 3 KUNSTLEVE,JIANG,KUSZEWSKI,NILGES, PANNU,READ, RICE, REMARK 3 SIMONSON,WARREN REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: WATER REFINEMENT USING THE OPLSX REMARK 3 FORCEFIELD. REMARK 4 REMARK 4 2CK4 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 10-APR-06. REMARK 100 THE DEPOSITION ID IS D_1290028455. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 300.0; 300.0; 300.0 REMARK 210 PH : 3.5; NULL; NULL REMARK 210 IONIC STRENGTH : NULL; NULL; NULL REMARK 210 PRESSURE : 1.0 ATM; 1.0 ATM; 1.0 ATM REMARK 210 SAMPLE CONTENTS : 90%WATER,10%D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NOESY; TOCSY; COSY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : OTHER REMARK 210 SPECTROMETER MANUFACTURER : BRUKER REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : NMRVIEW REMARK 210 METHOD USED : ARIA REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 50 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 20 REMARK 210 CONFORMERS, SELECTION CRITERIA : LEAST RESTRAINT VIOLATION REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 14 REMARK 210 REMARK 210 REMARK: NONE 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 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 400 REMARK 400 COMPOUND REMARK 400 ENGINEERED RESIDUE IN CHAIN A, GLU 16 TO LYS REMARK 400 ENGINEERED RESIDUE IN CHAIN A, LYS 20 TO ASP REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 REMARK 500 REMARK: NULL 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 2 ASN A 30 -4.14 62.87 REMARK 500 3 ASN A 30 -66.42 72.00 REMARK 500 4 LYS A 7 104.21 -58.04 REMARK 500 4 ASN A 30 -58.58 70.97 REMARK 500 5 ASN A 30 -74.72 72.70 REMARK 500 6 ASN A 5 33.43 -81.42 REMARK 500 6 ASN A 30 -4.72 68.45 REMARK 500 7 ASN A 5 31.06 -79.76 REMARK 500 8 ILE A 10 142.72 -174.70 REMARK 500 9 ASN A 5 39.90 -83.10 REMARK 500 10 LYS A 7 96.33 -69.29 REMARK 500 10 ASN A 30 18.82 58.39 REMARK 500 11 ASN A 5 45.25 -86.03 REMARK 500 11 ASN A 30 -73.80 71.04 REMARK 500 12 CYS A 8 85.07 -66.33 REMARK 500 12 ASN A 30 -65.41 73.75 REMARK 500 14 ASN A 5 48.96 -86.66 REMARK 500 14 ASN A 30 19.82 59.72 REMARK 500 15 LYS A 7 102.57 -55.53 REMARK 500 15 ASN A 30 -86.40 63.40 REMARK 500 16 ASN A 30 -77.04 69.61 REMARK 500 19 CYS A 8 98.46 -58.79 REMARK 500 19 ASN A 30 -62.70 73.58 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SCO RELATED DB: PDB REMARK 900 SCORPION TOXIN (OSK1 TOXIN) WITH HIGH AFFINITY FOR SMALL REMARK 900 CONDUCTANCE CA(2+)- ACTIVATED K+ CHANNEL IN NEUROBLASTOMA-X- GLUOMA REMARK 900 NG 108-15 HYBRID CELLS, NMR, 30 STRUCTURES REMARK 900 RELATED ID: 2CK5 RELATED DB: PDB REMARK 900 SOLUTION STRUCTURE OF DELTA 1-7 AOSK1 DBREF 2CK4 A 1 38 UNP P55896 KAX37_ORTSC 1 38 SEQADV 2CK4 LYS A 16 UNP P55896 GLU 16 ENGINEERED MUTATION SEQADV 2CK4 ASP A 20 UNP P55896 LYS 20 ENGINEERED MUTATION SEQRES 1 A 38 GLY VAL ILE ILE ASN VAL LYS CYS LYS ILE SER ARG GLN SEQRES 2 A 38 CYS LEU LYS PRO CYS LYS ASP ALA GLY MET ARG PHE GLY SEQRES 3 A 38 LYS CYS MET ASN GLY LYS CYS HIS CYS THR PRO LYS HELIX 1 1 SER A 11 ASP A 20 1 10 SHEET 1 AA 3 VAL A 2 ILE A 4 0 SHEET 2 AA 3 LYS A 32 CYS A 35 -1 O CYS A 33 N ILE A 4 SHEET 3 AA 3 LYS A 27 MET A 29 -1 O LYS A 27 N HIS A 34 SSBOND 1 CYS A 8 CYS A 28 1555 1555 2.02 SSBOND 2 CYS A 14 CYS A 33 1555 1555 2.03 SSBOND 3 CYS A 18 CYS A 35 1555 1555 2.04 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 MODEL 1 TER 594 LYS A 38 ENDMDL MODEL 2 TER 594 LYS A 38 ENDMDL MODEL 3 TER 594 LYS A 38 ENDMDL MODEL 4 TER 594 LYS A 38 ENDMDL MODEL 5 TER 594 LYS A 38 ENDMDL MODEL 6 TER 594 LYS A 38 ENDMDL MODEL 7 TER 594 LYS A 38 ENDMDL MODEL 8 TER 594 LYS A 38 ENDMDL MODEL 9 TER 594 LYS A 38 ENDMDL MODEL 10 TER 594 LYS A 38 ENDMDL MODEL 11 TER 594 LYS A 38 ENDMDL MODEL 12 TER 594 LYS A 38 ENDMDL MODEL 13 TER 594 LYS A 38 ENDMDL MODEL 14 TER 594 LYS A 38 ENDMDL MODEL 15 TER 594 LYS A 38 ENDMDL MODEL 16 TER 594 LYS A 38 ENDMDL MODEL 17 TER 594 LYS A 38 ENDMDL MODEL 18 TER 594 LYS A 38 ENDMDL MODEL 19 TER 594 LYS A 38 ENDMDL MODEL 20 TER 594 LYS A 38 ENDMDL CONECT 121 440 CONECT 224 510 CONECT 289 538 CONECT 440 121 CONECT 510 224 CONECT 538 289 MASTER 127 0 0 1 3 0 0 6 286 1 6 3 END