HEADER TOXIN 07-SEP-17 6AY7 TITLE CARTILAGE HOMING CYSTEINE-DENSE-PEPTIDES COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL TOXIN ALPHA-KTX 3.5; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: KALIOTOXIN-2,KTX-2; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ANDROCTONUS AUSTRALIS; SOURCE 3 ORGANISM_COMMON: SAHARA SCORPION; SOURCE 4 ORGANISM_TAXID: 6858; SOURCE 5 GENE: KTX2; SOURCE 6 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 9606; SOURCE 8 EXPRESSION_SYSTEM_CELL: HEK-293F KEYWDS KNOTTINS, CYSTINE KNOT, TOXINS, TOXIN EXPDTA X-RAY DIFFRACTION AUTHOR M.M.GEWE,R.K.STRONG REVDAT 2 04-OCT-23 6AY7 1 REMARK REVDAT 1 22-AUG-18 6AY7 0 JRNL AUTH M.M.GEWE JRNL TITL CARTILAGE HOMING CYSTEINE-DENSE-PEPTIDES JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.77 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.8.0158 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.77 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.81 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 85.4 REMARK 3 NUMBER OF REFLECTIONS : 5310 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) : 0.143 REMARK 3 R VALUE (WORKING SET) : 0.140 REMARK 3 FREE R VALUE : 0.193 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.400 REMARK 3 FREE R VALUE TEST SET COUNT : 304 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) : 1.78 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.82 REMARK 3 REFLECTION IN BIN (WORKING SET) : 67 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 14.97 REMARK 3 BIN R VALUE (WORKING SET) : 0.1820 REMARK 3 BIN FREE R VALUE SET COUNT : 5 REMARK 3 BIN FREE R VALUE : 0.2670 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 592 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 31 REMARK 3 SOLVENT ATOMS : 88 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 16.71 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.01000 REMARK 3 B22 (A**2) : -0.01000 REMARK 3 B33 (A**2) : 0.01000 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): 0.143 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.134 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.072 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.281 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.974 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.949 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 629 ; 0.011 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): 560 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 843 ; 1.528 ; 2.014 REMARK 3 BOND ANGLES OTHERS (DEGREES): 1285 ; 0.871 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 75 ; 6.124 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 28 ;23.661 ;17.143 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 106 ;14.597 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 16 ;18.848 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 83 ; 0.407 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 685 ; 0.013 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 147 ; 0.002 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): 309 ; 1.961 ; 1.558 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 308 ; 1.940 ; 1.550 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 381 ; 2.878 ; 2.586 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): 382 ; 2.882 ; 2.594 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 320 ; 4.831 ; 2.465 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): 296 ; 4.619 ; 2.412 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): 426 ; 7.129 ; 3.680 REMARK 3 LONG RANGE B REFINED ATOMS (A**2): 648 ; 9.616 ;16.309 REMARK 3 LONG RANGE B OTHER ATOMS (A**2): 622 ; 9.642 ;15.432 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 : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 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 6AY7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-SEP-17. REMARK 100 THE DEPOSITION ID IS D_1000229992. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 20-MAR-17 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.2 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU MICROMAX-007 HF REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RIGAKU SATURN 944 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 5643 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.770 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 80.9 REMARK 200 DATA REDUNDANCY : 5.400 REMARK 200 R MERGE (I) : 0.05600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 32.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.77 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.80 REMARK 200 COMPLETENESS FOR SHELL (%) : 9.9 REMARK 200 DATA REDUNDANCY IN SHELL : 1.60 REMARK 200 R MERGE FOR SHELL (I) : 0.11000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 8.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: 6ATM REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 32.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.83 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2M NA CHLORIDE, 0.1M PHOSPHATE REMARK 280 -CITRATE PH 4.2, 20% PEG 8000, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-Z 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 13.91900 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 24.26900 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 23.56250 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 24.26900 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 13.91900 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 23.56250 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: B 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 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 O HOH A 201 O HOH A 208 2.14 REMARK 500 O HOH A 206 O HOH A 207 2.19 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 ASN B 29 50.55 38.20 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 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue SO4 A 102 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue TFA A 103 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL A 104 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue SO4 B 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue TFA B 102 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CL B 103 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 6ATM RELATED DB: PDB REMARK 900 RELATED ID: 6ATY RELATED DB: PDB DBREF 6AY7 A 1 39 UNP P45696 KAX35_ANDAU 23 59 DBREF 6AY7 B 1 37 UNP P45696 KAX35_ANDAU 23 59 SEQADV 6AY7 GLY A -1 UNP P45696 EXPRESSION TAG SEQADV 6AY7 SER A 0 UNP P45696 EXPRESSION TAG SEQADV 6AY7 ARG A 8 UNP P45696 LYS 30 CONFLICT SEQADV 6AY7 ARG A 15 UNP P45696 LYS 37 CONFLICT SEQADV 6AY7 ARG A 18 UNP P45696 LYS 40 CONFLICT SEQADV 6AY7 ARG A 26 UNP P45696 LYS 48 CONFLICT SEQADV 6AY7 ARG A 33 UNP P45696 LYS 53 CONFLICT SEQADV 6AY7 ARG A 39 UNP P45696 LYS 59 CONFLICT SEQADV 6AY7 GLY B -1 UNP P45696 EXPRESSION TAG SEQADV 6AY7 SER B 0 UNP P45696 EXPRESSION TAG SEQADV 6AY7 ARG B 8 UNP P45696 LYS 30 CONFLICT SEQADV 6AY7 ARG B 15 UNP P45696 LYS 37 CONFLICT SEQADV 6AY7 ARG B 18 UNP P45696 LYS 40 CONFLICT SEQADV 6AY7 ARG B 26 UNP P45696 LYS 48 CONFLICT SEQADV 6AY7 ARG B 31 UNP P45696 LYS 53 CONFLICT SEQADV 6AY7 ARG B 37 UNP P45696 LYS 59 CONFLICT SEQRES 1 A 39 GLY SER VAL ARG ILE PRO VAL SER CYS ARG HIS SER GLY SEQRES 2 A 39 GLN CYS LEU ARG PRO CYS ARG ASP ALA GLY MET ARG PHE SEQRES 3 A 39 GLY ARG CYS MET ASN GLY ARG CYS ASP CYS THR PRO ARG SEQRES 1 B 39 GLY SER VAL ARG ILE PRO VAL SER CYS ARG HIS SER GLY SEQRES 2 B 39 GLN CYS LEU ARG PRO CYS ARG ASP ALA GLY MET ARG PHE SEQRES 3 B 39 GLY ARG CYS MET ASN GLY ARG CYS ASP CYS THR PRO ARG HET SO4 A 101 5 HET SO4 A 102 5 HET TFA A 103 7 HET CL A 104 1 HET SO4 B 101 5 HET TFA B 102 7 HET CL B 103 1 HETNAM SO4 SULFATE ION HETNAM TFA TRIFLUOROACETIC ACID HETNAM CL CHLORIDE ION FORMUL 3 SO4 3(O4 S 2-) FORMUL 5 TFA 2(C2 H F3 O2) FORMUL 6 CL 2(CL 1-) FORMUL 10 HOH *88(H2 O) HELIX 1 AA1 HIS A 9 GLN A 12 5 4 HELIX 2 AA2 CYS A 13 ALA A 20 1 8 HELIX 3 AA3 HIS B 9 GLN B 12 5 4 HELIX 4 AA4 CYS B 13 ALA B 20 1 8 SHEET 1 AA1 3 VAL A 1 SER A 6 0 SHEET 2 AA1 3 ARG A 33 THR A 37 -1 O CYS A 36 N VAL A 1 SHEET 3 AA1 3 ARG A 23 MET A 30 -1 N ARG A 26 O ASP A 35 SHEET 1 AA2 3 VAL B 1 SER B 6 0 SHEET 2 AA2 3 ARG B 31 PRO B 36 -1 O CYS B 32 N ILE B 3 SHEET 3 AA2 3 MET B 22 MET B 28 -1 N ARG B 26 O ASP B 33 SSBOND 1 CYS A 7 CYS A 27 1555 1555 2.06 SSBOND 2 CYS A 13 CYS A 34 1555 1555 2.05 SSBOND 3 CYS A 17 CYS A 36 1555 1555 2.03 SSBOND 4 CYS B 7 CYS B 27 1555 1555 2.08 SSBOND 5 CYS B 13 CYS B 32 1555 1555 2.06 SSBOND 6 CYS B 17 CYS B 34 1555 1555 2.04 SITE 1 AC1 8 LEU A 14 ARG A 18 GLY A 32 ARG A 33 SITE 2 AC1 8 HOH A 214 HOH A 217 ARG B 15 ARG B 18 SITE 1 AC2 5 ARG A 2 ARG A 8 ARG A 23 HOH A 202 SITE 2 AC2 5 HOH A 222 SITE 1 AC3 11 ILE A 3 PRO A 4 VAL A 5 HIS A 9 SITE 2 AC3 11 SER A 10 GLY A 11 ALA A 20 HOH A 210 SITE 3 AC3 11 HOH A 224 VAL B 1 PRO B 36 SITE 1 AC4 5 SER A 6 ARG A 18 ARG A 23 PHE A 24 SITE 2 AC4 5 HOH A 239 SITE 1 AC5 7 ARG A 2 ASN A 31 HOH A 205 ARG B 2 SITE 2 AC5 7 ARG B 23 ARG B 37 HOH B 218 SITE 1 AC6 11 VAL A 1 PRO A 38 ILE B 3 PRO B 4 SITE 2 AC6 11 VAL B 5 HIS B 9 SER B 10 GLY B 11 SITE 3 AC6 11 ALA B 20 HOH B 203 HOH B 209 SITE 1 AC7 4 SER B 6 ARG B 18 ARG B 23 PHE B 24 CRYST1 27.838 47.125 48.538 90.00 90.00 90.00 P 21 21 21 8 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 0.035922 0.000000 0.000000 0.00000 SCALE2 0.000000 0.021220 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020602 0.00000