HEADER TOXIN 17-FEB-04 1SEG TITLE CRYSTAL STRUCTURE OF A TOXIN CHIMERA BETWEEN LQH-ALPHA-IT FROM THE TITLE 2 SCORPION LEIURUS QUINQUESTRIATUS HEBRAEUS AND AAH2 FROM ANDROCTONUS TITLE 3 AUSTRALIS HECTOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: AAH2: LQH-ALPHA-IT (FACE) CHIMERIC TOXIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: AAH II, AAHII, AAH2; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ANDROCTONUS AUSTRALIS HECTOR; SOURCE 3 ORGANISM_TAXID: 70175; SOURCE 4 STRAIN: HECTOR; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 511693; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET-11 KEYWDS TOXIN, CHIMERA, SCORPION EXPDTA X-RAY DIFFRACTION AUTHOR I.KARBAT,F.FROLOW,O.FROY,N.GILLES,L.COHEN,M.TURKOV,D.GORDON, AUTHOR 2 M.GUREVITZ REVDAT 5 23-AUG-23 1SEG 1 REMARK REVDAT 4 27-OCT-21 1SEG 1 REMARK SEQADV REVDAT 3 30-APR-14 1SEG 1 REMARK VERSN REVDAT 2 24-FEB-09 1SEG 1 VERSN REVDAT 1 31-AUG-04 1SEG 0 JRNL AUTH I.KARBAT,F.FROLOW,O.FROY,N.GILLES,L.COHEN,M.TURKOV,D.GORDON, JRNL AUTH 2 M.GUREVITZ JRNL TITL MOLECULAR BASIS OF THE HIGH INSECTICIDAL POTENCY OF SCORPION JRNL TITL 2 ALPHA-TOXINS. JRNL REF J.BIOL.CHEM. V. 279 31679 2004 JRNL REFN ISSN 0021-9258 JRNL PMID 15133045 JRNL DOI 10.1074/JBC.M402048200 REMARK 2 REMARK 2 RESOLUTION. 1.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.24 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 52.70 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.6 REMARK 3 NUMBER OF REFLECTIONS : 18549 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING + TEST SET) : 0.155 REMARK 3 R VALUE (WORKING SET) : 0.153 REMARK 3 FREE R VALUE : 0.178 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1002 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.33 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1251 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2270 REMARK 3 BIN FREE R VALUE SET COUNT : 53 REMARK 3 BIN FREE R VALUE : 0.2220 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 518 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 18 REMARK 3 SOLVENT ATOMS : 119 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.12 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.79 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.96000 REMARK 3 B22 (A**2) : -1.96000 REMARK 3 B33 (A**2) : 3.91000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.047 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.045 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.037 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.916 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.973 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.966 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 553 ; 0.016 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): 436 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 748 ; 1.686 ; 1.968 REMARK 3 BOND ANGLES OTHERS (DEGREES): 1027 ; 0.844 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 63 ; 7.483 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 69 ; 0.109 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 615 ; 0.009 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 118 ; 0.004 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 116 ; 0.220 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 516 ; 0.249 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): 289 ; 0.082 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 54 ; 0.196 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 4 ; 0.061 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 21 ; 0.157 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 22 ; 0.253 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 325 ; 1.574 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 512 ; 2.176 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 228 ; 3.348 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 236 ; 4.763 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 3 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 1 A 64 REMARK 3 ORIGIN FOR THE GROUP (A): 18.2830 75.4770 18.6390 REMARK 3 T TENSOR REMARK 3 T11: 0.0482 T22: 0.0589 REMARK 3 T33: 0.0063 T12: 0.0018 REMARK 3 T13: 0.0122 T23: 0.0116 REMARK 3 L TENSOR REMARK 3 L11: 0.4273 L22: 1.0158 REMARK 3 L33: 0.2300 L12: 0.0683 REMARK 3 L13: -0.3672 L23: -0.2078 REMARK 3 S TENSOR REMARK 3 S11: -0.0218 S12: -0.0097 S13: -0.0131 REMARK 3 S21: -0.0647 S22: -0.0346 S23: -0.1394 REMARK 3 S31: 0.0143 S32: 0.0202 S33: 0.0564 REMARK 3 REMARK 3 TLS GROUP : 2 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 165 A 165 REMARK 3 ORIGIN FOR THE GROUP (A): 12.9960 84.3120 19.1750 REMARK 3 T TENSOR REMARK 3 T11: 0.0553 T22: 0.0602 REMARK 3 T33: 0.0009 T12: -0.0077 REMARK 3 T13: 0.0026 T23: 0.0064 REMARK 3 L TENSOR REMARK 3 L11: 49.1963 L22: 8.4477 REMARK 3 L33: -10.2743 L12: -14.7472 REMARK 3 L13: -5.4793 L23: -11.5192 REMARK 3 S TENSOR REMARK 3 S11: -0.0056 S12: -0.2190 S13: -0.2385 REMARK 3 S21: -0.3463 S22: 0.4597 S23: -0.1825 REMARK 3 S31: 0.0705 S32: 0.0273 S33: -0.4540 REMARK 3 REMARK 3 TLS GROUP : 3 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 166 A 166 REMARK 3 ORIGIN FOR THE GROUP (A): 19.3510 93.2290 21.6490 REMARK 3 T TENSOR REMARK 3 T11: 0.0382 T22: 0.0382 REMARK 3 T33: 0.0394 T12: -0.0013 REMARK 3 T13: 0.0002 T23: 0.0015 REMARK 3 L TENSOR REMARK 3 L11: 2.9878 L22: -2.4731 REMARK 3 L33: -6.6956 L12: 35.0911 REMARK 3 L13: 10.5432 L23: -0.7724 REMARK 3 S TENSOR REMARK 3 S11: 0.0017 S12: -1.1614 S13: 1.3244 REMARK 3 S21: 0.7026 S22: -0.1012 S23: 0.5419 REMARK 3 S31: -1.5430 S32: -0.6694 S33: 0.0995 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 1SEG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-FEB-04. REMARK 100 THE DEPOSITION ID IS D_1000021638. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 12-DEC-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-4 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.003 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19554 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.300 REMARK 200 RESOLUTION RANGE LOW (A) : 52.700 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.6 REMARK 200 DATA REDUNDANCY : 12.00 REMARK 200 R MERGE (I) : 0.04100 REMARK 200 R SYM (I) : 0.04100 REMARK 200 FOR THE DATA SET : 25.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.35 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.7 REMARK 200 DATA REDUNDANCY IN SHELL : 12.00 REMARK 200 R MERGE FOR SHELL (I) : 0.25200 REMARK 200 R SYM FOR SHELL (I) : 0.05100 REMARK 200 FOR SHELL : 5.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MIR REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1AHO REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.96 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100MM TRISODIUM CITRATE DIHYDRATE, 1M REMARK 280 MONO-AMMONIUM DIHYDROGEN PHOSPHATE, PH 5.6, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 296K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 4 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -Y,X,Z REMARK 290 4555 Y,-X,Z REMARK 290 5555 -X,Y,-Z REMARK 290 6555 X,-Y,-Z REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z REMARK 290 9555 X+1/2,Y+1/2,Z+1/2 REMARK 290 10555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 11555 -Y+1/2,X+1/2,Z+1/2 REMARK 290 12555 Y+1/2,-X+1/2,Z+1/2 REMARK 290 13555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 14555 X+1/2,-Y+1/2,-Z+1/2 REMARK 290 15555 Y+1/2,X+1/2,-Z+1/2 REMARK 290 16555 -Y+1/2,-X+1/2,-Z+1/2 REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY2 9 0.000000 1.000000 0.000000 37.26150 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 28.48650 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 37.26150 REMARK 290 SMTRY3 10 0.000000 0.000000 1.000000 28.48650 REMARK 290 SMTRY1 11 0.000000 -1.000000 0.000000 37.26150 REMARK 290 SMTRY2 11 1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY3 11 0.000000 0.000000 1.000000 28.48650 REMARK 290 SMTRY1 12 0.000000 1.000000 0.000000 37.26150 REMARK 290 SMTRY2 12 -1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY3 12 0.000000 0.000000 1.000000 28.48650 REMARK 290 SMTRY1 13 -1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 37.26150 REMARK 290 SMTRY3 13 0.000000 0.000000 -1.000000 28.48650 REMARK 290 SMTRY1 14 1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY2 14 0.000000 -1.000000 0.000000 37.26150 REMARK 290 SMTRY3 14 0.000000 0.000000 -1.000000 28.48650 REMARK 290 SMTRY1 15 0.000000 1.000000 0.000000 37.26150 REMARK 290 SMTRY2 15 1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY3 15 0.000000 0.000000 -1.000000 28.48650 REMARK 290 SMTRY1 16 0.000000 -1.000000 0.000000 37.26150 REMARK 290 SMTRY2 16 -1.000000 0.000000 0.000000 37.26150 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 28.48650 REMARK 290 REMARK 290 REMARK: NULL 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 300 REMARK: THE MOLECULE IS BIOLOGICALLY ACTIVE AS A MONOMER 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 182 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 205 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 287 LIES ON A SPECIAL POSITION. REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT 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 O1 PPI A 168 O HOH A 271 2.09 REMARK 500 O HOH A 228 O HOH A 286 2.10 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 223 O HOH A 223 6576 2.02 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ASP A 53 CB - CG - OD2 ANGL. DEV. = 6.5 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 165 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO3 A 166 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO3 A 167 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PPI A 168 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1AHO RELATED DB: PDB REMARK 900 SCORPION ALPHA TOXIN ACTIVE ON MAMMALS FROM ANDROCTONUS AUSTRALIS REMARK 900 HECTOR REMARK 900 RELATED ID: 1LQH RELATED DB: PDB REMARK 900 INSECTICIDAL ALPHA SCORPION TOXIN ISOLATED FROM THE VENOM OF REMARK 900 SCORPION LEIURUS QUINQUESTRIATUS HEBRAEUS REMARK 999 REMARK 999 SEQUENCE REMARK 999 RESIDUES 8-10, 17, 56-59, 62 OF LQH-ALPHA-IT CONSTRUCTED REMARK 999 ON THE SCAFFOLD OF AAH2: D8K, D9N, V10Y, G17F, R56P, REMARK 999 T57I, K58R, G59V, R62K DBREF 1SEG A 1 64 UNP P01484 SCX2_ANDAU 20 83 SEQADV 1SEG LYS A 8 UNP P01484 ASP 27 ENGINEERED MUTATION SEQADV 1SEG ASN A 9 UNP P01484 ASP 28 ENGINEERED MUTATION SEQADV 1SEG TYR A 10 UNP P01484 VAL 29 ENGINEERED MUTATION SEQADV 1SEG PHE A 17 UNP P01484 GLY 36 ENGINEERED MUTATION SEQADV 1SEG PRO A 56 UNP P01484 ARG 75 ENGINEERED MUTATION SEQADV 1SEG ILE A 57 UNP P01484 THR 76 ENGINEERED MUTATION SEQADV 1SEG ARG A 58 UNP P01484 LYS 77 ENGINEERED MUTATION SEQADV 1SEG VAL A 59 UNP P01484 GLY 78 ENGINEERED MUTATION SEQADV 1SEG LYS A 62 UNP P01484 ARG 81 ENGINEERED MUTATION SEQRES 1 A 64 VAL LYS ASP GLY TYR ILE VAL LYS ASN TYR ASN CYS THR SEQRES 2 A 64 TYR PHE CYS PHE ARG ASN ALA TYR CYS ASN GLU GLU CYS SEQRES 3 A 64 THR LYS LEU LYS GLY GLU SER GLY TYR CYS GLN TRP ALA SEQRES 4 A 64 SER PRO TYR GLY ASN ALA CYS TYR CYS TYR LYS LEU PRO SEQRES 5 A 64 ASP HIS VAL PRO ILE ARG VAL PRO GLY LYS CYS HIS HET SO4 A 165 5 HET NO3 A 166 4 HET NO3 A 167 4 HET PPI A 168 5 HETNAM SO4 SULFATE ION HETNAM NO3 NITRATE ION HETNAM PPI PROPANOIC ACID FORMUL 2 SO4 O4 S 2- FORMUL 3 NO3 2(N O3 1-) FORMUL 5 PPI C3 H6 O2 FORMUL 6 HOH *119(H2 O) HELIX 1 1 ARG A 18 LEU A 29 1 12 SHEET 1 A 3 LYS A 2 TYR A 5 0 SHEET 2 A 3 GLY A 43 LEU A 51 -1 O LEU A 51 N LYS A 2 SHEET 3 A 3 SER A 33 SER A 40 -1 N TYR A 35 O TYR A 47 SHEET 1 B 2 VAL A 7 LYS A 8 0 SHEET 2 B 2 CYS A 12 THR A 13 -1 O CYS A 12 N LYS A 8 SSBOND 1 CYS A 12 CYS A 63 1555 1555 2.07 SSBOND 2 CYS A 16 CYS A 36 1555 1555 2.09 SSBOND 3 CYS A 22 CYS A 46 1555 1555 2.08 SSBOND 4 CYS A 26 CYS A 48 1555 1555 2.02 CISPEP 1 ASN A 9 TYR A 10 0 -11.21 SITE 1 AC1 8 THR A 13 ASN A 19 TYR A 42 ARG A 58 SITE 2 AC1 8 CYS A 63 HOH A 176 HOH A 179 HOH A 191 SITE 1 AC2 4 GLY A 61 LYS A 62 HIS A 64 HOH A 197 SITE 1 AC3 5 LYS A 8 THR A 13 PHE A 15 HOH A 178 SITE 2 AC3 5 HOH A 201 SITE 1 AC4 5 PHE A 17 ARG A 18 TYR A 21 HOH A 246 SITE 2 AC4 5 HOH A 271 CRYST1 74.523 74.523 56.973 90.00 90.00 90.00 I 4 2 2 16 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 0.013419 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013419 0.000000 0.00000 SCALE3 0.000000 0.000000 0.017552 0.00000