HEADER TOXIN 07-APR-15 4Z7P TITLE X-RAY STRUCTURE OF RACEMIC SHK Q16K TOXIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: POTASSIUM CHANNEL TOXIN KAPPA-STICHOTOXIN-SHE1A; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: KAPPA-SHTX-SHE1A,POTASSIUM CHANNEL TOXIN SHK; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 ORGANISM_SCIENTIFIC: STOICHACTIS HELIANTHUS; SOURCE 4 ORGANISM_COMMON: CARRIBEAN SEA ANEMONE; SOURCE 5 ORGANISM_TAXID: 6123 KEYWDS SHK TOXIN, TOXIN EXPDTA X-RAY DIFFRACTION AUTHOR E.A.SICKMIER REVDAT 2 23-SEP-15 4Z7P 1 JRNL REVDAT 1 09-SEP-15 4Z7P 0 JRNL AUTH J.K.MURRAY,Y.X.QIAN,B.LIU,R.ELLIOTT,J.ARAL,C.PARK,X.ZHANG, JRNL AUTH 2 M.STENKILSSON,K.SALYERS,M.ROSE,H.LI,S.YU,K.L.ANDREWS, JRNL AUTH 3 A.COLOMBERO,J.WERNER,K.GAIDA,E.A.SICKMIER,P.MIU,A.ITANO, JRNL AUTH 4 J.MCGIVERN,C.V.GEGG,J.K.SULLIVAN,L.P.MIRANDA JRNL TITL PHARMACEUTICAL OPTIMIZATION OF PEPTIDE TOXINS FOR ION JRNL TITL 2 CHANNEL TARGETS: POTENT, SELECTIVE, AND LONG-LIVED JRNL TITL 3 ANTAGONISTS OF KV1.3. JRNL REF J.MED.CHEM. V. 58 6784 2015 JRNL REFN ISSN 0022-2623 JRNL PMID 26288216 JRNL DOI 10.1021/ACS.JMEDCHEM.5B00495 REMARK 2 REMARK 2 RESOLUTION. 1.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.7.0032 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.39 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.7 REMARK 3 NUMBER OF REFLECTIONS : 17078 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) : 0.205 REMARK 3 R VALUE (WORKING SET) : 0.204 REMARK 3 FREE R VALUE : 0.227 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 914 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) : 1.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.23 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1223 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 90.45 REMARK 3 BIN R VALUE (WORKING SET) : 0.3330 REMARK 3 BIN FREE R VALUE SET COUNT : 65 REMARK 3 BIN FREE R VALUE : 0.3850 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 278 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 38 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 16.77 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.16000 REMARK 3 B22 (A**2) : 0.16000 REMARK 3 B33 (A**2) : -0.53000 REMARK 3 B12 (A**2) : 0.16000 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): 0.040 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.040 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.019 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.962 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.965 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.964 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 313 ; 0.004 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): 296 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 419 ; 1.038 ; 2.036 REMARK 3 BOND ANGLES OTHERS (DEGREES): 678 ; 0.742 ; 3.018 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 36 ; 5.755 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 10 ;26.187 ;16.000 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 63 ;10.022 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 5 ;11.111 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 46 ; 0.061 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 307 ; 0.003 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 72 ; 0.001 ; 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): 141 ; 1.038 ; 1.838 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 140 ; 1.020 ; 1.836 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 175 ; 1.258 ; 3.098 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL 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): 608 ; 0.943 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 13 ;22.180 ; 5.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 631 ; 8.763 ; 5.000 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 : MASK 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 U VALUES : REFINED INDIVIDUALLY REMARK 4 REMARK 4 4Z7P COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-APR-15. REMARK 100 THE DEPOSITION ID IS D_1000208769. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-MAR-09 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18716 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.200 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 (%) : 99.4 REMARK 200 DATA REDUNDANCY : 5.300 REMARK 200 R MERGE (I) : 0.06100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 10.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.24 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.2 REMARK 200 DATA REDUNDANCY IN SHELL : 3.50 REMARK 200 R MERGE FOR SHELL (I) : 0.60000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL 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: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 35.38 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.90 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M SODIUM ACETATE PH 4.5, 2-2.5 M REMARK 280 AMMONIUM SULFATE, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 292.0K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H -3 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,-Z REMARK 290 5555 Y,-X+Y,-Z REMARK 290 6555 X-Y,X,-Z REMARK 290 7555 X+2/3,Y+1/3,Z+1/3 REMARK 290 8555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 9555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 10555 -X+2/3,-Y+1/3,-Z+1/3 REMARK 290 11555 Y+2/3,-X+Y+1/3,-Z+1/3 REMARK 290 12555 X-Y+2/3,X+1/3,-Z+1/3 REMARK 290 13555 X+1/3,Y+2/3,Z+2/3 REMARK 290 14555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 15555 -X+Y+1/3,-X+2/3,Z+2/3 REMARK 290 16555 -X+1/3,-Y+2/3,-Z+2/3 REMARK 290 17555 Y+1/3,-X+Y+2/3,-Z+2/3 REMARK 290 18555 X-Y+1/3,X+2/3,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 30.39150 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 17.54654 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 14.53067 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 30.39150 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 17.54654 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 14.53067 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 30.39150 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 17.54654 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 14.53067 REMARK 290 SMTRY1 10 -1.000000 0.000000 0.000000 30.39150 REMARK 290 SMTRY2 10 0.000000 -1.000000 0.000000 17.54654 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 14.53067 REMARK 290 SMTRY1 11 0.500000 0.866025 0.000000 30.39150 REMARK 290 SMTRY2 11 -0.866025 0.500000 0.000000 17.54654 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 14.53067 REMARK 290 SMTRY1 12 0.500000 -0.866025 0.000000 30.39150 REMARK 290 SMTRY2 12 0.866025 0.500000 0.000000 17.54654 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 14.53067 REMARK 290 SMTRY1 13 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 35.09308 REMARK 290 SMTRY3 13 0.000000 0.000000 1.000000 29.06133 REMARK 290 SMTRY1 14 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 14 0.866025 -0.500000 0.000000 35.09308 REMARK 290 SMTRY3 14 0.000000 0.000000 1.000000 29.06133 REMARK 290 SMTRY1 15 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 15 -0.866025 -0.500000 0.000000 35.09308 REMARK 290 SMTRY3 15 0.000000 0.000000 1.000000 29.06133 REMARK 290 SMTRY1 16 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 16 0.000000 -1.000000 0.000000 35.09308 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 29.06133 REMARK 290 SMTRY1 17 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 17 -0.866025 0.500000 0.000000 35.09308 REMARK 290 SMTRY3 17 0.000000 0.000000 -1.000000 29.06133 REMARK 290 SMTRY1 18 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 18 0.866025 0.500000 0.000000 35.09308 REMARK 290 SMTRY3 18 0.000000 0.000000 -1.000000 29.06133 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 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 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 S SO4 A 102 LIES ON A SPECIAL POSITION. REMARK 375 O3 SO4 A 102 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 232 LIES ON A SPECIAL POSITION. REMARK 610 REMARK 610 MISSING HETEROATOM REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 610 I=INSERTION CODE): REMARK 610 M RES C SSEQI REMARK 610 SO4 A 102 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4LFS RELATED DB: PDB DBREF 4Z7P A 1 35 UNP P29187 TXT1A_STOHE 1 35 SEQADV 4Z7P LYS A 16 UNP P29187 GLN 16 ENGINEERED MUTATION SEQRES 1 A 35 ARG SER CYS ILE ASP THR ILE PRO LYS SER ARG CYS THR SEQRES 2 A 35 ALA PHE LYS CYS LYS HIS SER MET LYS TYR ARG LEU SER SEQRES 3 A 35 PHE CYS ARG LYS THR CYS GLY THR CYS HET SO4 A 101 5 HET SO4 A 102 4 HET SO4 A 103 5 HET SO4 A 104 5 HET SO4 A 105 5 HETNAM SO4 SULFATE ION FORMUL 2 SO4 5(O4 S 2-) FORMUL 7 HOH *38(H2 O) HELIX 1 AA1 PRO A 8 CYS A 12 5 5 HELIX 2 AA2 THR A 13 SER A 20 1 8 HELIX 3 AA3 SER A 20 SER A 26 1 7 SSBOND 1 CYS A 3 CYS A 35 1555 1555 2.04 SSBOND 2 CYS A 12 CYS A 28 1555 1555 2.04 SSBOND 3 CYS A 17 CYS A 32 1555 1555 2.03 CRYST1 60.783 60.783 43.592 90.00 90.00 120.00 H -3 18 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 0.016452 0.009499 0.000000 0.00000 SCALE2 0.000000 0.018997 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022940 0.00000