HEADER METAL BINDING PROTEIN 11-JUN-08 3DFB OBSLTE 09-NOV-11 3DFB 3U8V TITLE THREE DIMENSIONAL STRUCTURE OF THE SMALL METAL BINDING PROTEIN, SMBP COMPND MOL_ID: 1; COMPND 2 MOLECULE: METAL-BINDING PROTEIN SMBP; COMPND 3 CHAIN: A, B SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: NITROSOMONAS EUROPAEA; SOURCE 3 ORGANISM_TAXID: 915 KEYWDS FOUR HELICAL BUNDLE, METAL-BINDING, METAL BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR J.P.ALLEN,W.FRANCISCO REVDAT 3 09-NOV-11 3DFB 1 OBSLTE VERSN REVDAT 2 23-JUN-09 3DFB 1 OBSLTE REVDAT 1 16-JUN-09 3DFB 0 JRNL AUTH J.P.ALLEN,W.FRANCISCO JRNL TITL THREE DIMENSIONAL STRUCTURE OF SMBP JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0005 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) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 41.96 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 98.2 REMARK 3 NUMBER OF REFLECTIONS : 12927 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) : 0.172 REMARK 3 R VALUE (WORKING SET) : 0.170 REMARK 3 FREE R VALUE : 0.205 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 684 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) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.95 REMARK 3 REFLECTION IN BIN (WORKING SET) : 918 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.49 REMARK 3 BIN R VALUE (WORKING SET) : 0.1930 REMARK 3 BIN FREE R VALUE SET COUNT : 59 REMARK 3 BIN FREE R VALUE : 0.2720 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1244 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 97 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.57 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.49000 REMARK 3 B22 (A**2) : -0.38000 REMARK 3 B33 (A**2) : 1.87000 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): 0.141 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.129 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.089 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.741 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.958 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.935 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1282 ; 0.019 ; 0.020 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1721 ; 1.638 ; 1.883 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 162 ; 3.948 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 65 ;39.114 ;25.077 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 218 ;16.405 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 2 ; 9.711 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 188 ; 0.110 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 966 ; 0.007 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 709 ; 0.224 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 851 ; 0.294 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 110 ; 0.172 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 2 ; 0.050 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 39 ; 0.198 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 8 ; 0.204 ; 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): 826 ; 1.226 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1271 ; 1.774 ; 2.000 REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 478 ; 3.603 ; 3.000 REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 450 ; 5.881 ; 4.500 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 : 2 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 88 REMARK 3 ORIGIN FOR THE GROUP (A): -0.7389 -12.2269 10.0138 REMARK 3 T TENSOR REMARK 3 T11: -0.1355 T22: -0.1369 REMARK 3 T33: -0.0701 T12: -0.0067 REMARK 3 T13: -0.0108 T23: 0.0112 REMARK 3 L TENSOR REMARK 3 L11: 3.8573 L22: 1.6708 REMARK 3 L33: 4.5633 L12: -0.4139 REMARK 3 L13: -0.8883 L23: 0.7213 REMARK 3 S TENSOR REMARK 3 S11: -0.0289 S12: 0.1417 S13: -0.1890 REMARK 3 S21: 0.1380 S22: -0.0323 S23: -0.0098 REMARK 3 S31: 0.0778 S32: 0.2741 S33: 0.0612 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 : B 1 B 88 REMARK 3 ORIGIN FOR THE GROUP (A): -15.1109 4.5214 12.5569 REMARK 3 T TENSOR REMARK 3 T11: -0.0423 T22: -0.1029 REMARK 3 T33: -0.0880 T12: 0.0251 REMARK 3 T13: -0.0201 T23: -0.0613 REMARK 3 L TENSOR REMARK 3 L11: 4.1253 L22: 5.8558 REMARK 3 L33: 3.9078 L12: -1.7613 REMARK 3 L13: 0.2611 L23: -0.9773 REMARK 3 S TENSOR REMARK 3 S11: 0.1876 S12: 0.4000 S13: 0.1089 REMARK 3 S21: -0.3167 S22: -0.2748 S23: 0.2815 REMARK 3 S31: -0.0929 S32: 0.0759 S33: 0.0872 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 3DFB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-JUN-08. REMARK 100 THE RCSB ID CODE IS RCSB047967. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-JUN-07 REMARK 200 TEMPERATURE (KELVIN) : 80 REMARK 200 PH : 9.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 5.0.3 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0, 1.48525, 1.48634, 1.40127 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 210 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 13646 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 42.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.5 REMARK 200 DATA REDUNDANCY : 4.300 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04700 REMARK 200 FOR THE DATA SET : 10.5000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.6 REMARK 200 DATA REDUNDANCY IN SHELL : 4.40 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.28000 REMARK 200 FOR SHELL : 2.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.14 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.13 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: THE RESERVOIR CONTAINED 20% W/V REMARK 280 POLYETHYLENE GLYCOL 20,000, 0.1 M CALCIUM CHLORIDE, 0.1 M N- REMARK 280 [TRIS(HYDROXYMETHYL)METHYL]-3-AMINOPROPANESULFONIC ACID, TAPS AND REMARK 280 1 MM SODIUM AZIDE. FOR CRYSTALLIZATION, 1 L OF THE PROTEIN WAS REMARK 280 MIXED WITH AN EQUAL VOLUME OF THE RESERVOIR. THE TOTAL VOLUME OF REMARK 280 THE RESERVOIR WAS 0.5 ML, PH 9.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 289K 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 17.83000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 41.96150 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.10350 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 41.96150 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 17.83000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 28.10350 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 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 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 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 GLU A 45 REMARK 465 ALA A 46 REMARK 465 GLY A 47 REMARK 465 GLY A 48 REMARK 465 ASN A 49 REMARK 465 GLU A 89 REMARK 465 HIS A 90 REMARK 465 LYS A 91 REMARK 465 SER A 92 REMARK 465 HIS A 93 REMARK 465 GLU B 45 REMARK 465 ALA B 46 REMARK 465 GLY B 47 REMARK 465 GLY B 48 REMARK 465 ASN B 49 REMARK 465 GLU B 89 REMARK 465 HIS B 90 REMARK 465 LYS B 91 REMARK 465 SER B 92 REMARK 465 HIS B 93 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 HIS A 70 78.83 -112.21 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NI A 94 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 1 N REMARK 620 2 SER A 1 O 80.1 REMARK 620 3 HIS A 6 NE2 98.3 92.2 REMARK 620 4 SER B 1 N 160.0 86.0 96.6 REMARK 620 5 SER B 1 O 89.7 87.7 171.9 75.3 REMARK 620 6 HIS B 6 NE2 93.4 172.4 92.7 99.2 88.2 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NI A 94 DBREF 3DFB A 1 93 UNP Q82S91 SMBP_NITEU 25 117 DBREF 3DFB B 1 93 UNP Q82S91 SMBP_NITEU 25 117 SEQRES 1 A 93 SER GLY HIS THR ALA HIS VAL ASP GLU ALA VAL LYS HIS SEQRES 2 A 93 ALA GLU GLU ALA VAL ALA HIS GLY LYS GLU GLY HIS THR SEQRES 3 A 93 ASP GLN LEU LEU GLU HIS ALA LYS GLU SER LEU THR HIS SEQRES 4 A 93 ALA LYS ALA ALA SER GLU ALA GLY GLY ASN THR HIS VAL SEQRES 5 A 93 GLY HIS GLY ILE LYS HIS LEU GLU ASP ALA ILE LYS HIS SEQRES 6 A 93 GLY GLU GLU GLY HIS VAL GLY VAL ALA THR LYS HIS ALA SEQRES 7 A 93 GLN GLU ALA ILE GLU HIS LEU ARG ALA SER GLU HIS LYS SEQRES 8 A 93 SER HIS SEQRES 1 B 93 SER GLY HIS THR ALA HIS VAL ASP GLU ALA VAL LYS HIS SEQRES 2 B 93 ALA GLU GLU ALA VAL ALA HIS GLY LYS GLU GLY HIS THR SEQRES 3 B 93 ASP GLN LEU LEU GLU HIS ALA LYS GLU SER LEU THR HIS SEQRES 4 B 93 ALA LYS ALA ALA SER GLU ALA GLY GLY ASN THR HIS VAL SEQRES 5 B 93 GLY HIS GLY ILE LYS HIS LEU GLU ASP ALA ILE LYS HIS SEQRES 6 B 93 GLY GLU GLU GLY HIS VAL GLY VAL ALA THR LYS HIS ALA SEQRES 7 B 93 GLN GLU ALA ILE GLU HIS LEU ARG ALA SER GLU HIS LYS SEQRES 8 B 93 SER HIS HET NI A 94 1 HETNAM NI NICKEL (II) ION FORMUL 3 NI NI 2+ FORMUL 4 HOH *97(H2 O) HELIX 1 1 GLY A 2 GLU A 23 1 22 HELIX 2 2 HIS A 25 SER A 44 1 20 HELIX 3 3 THR A 50 GLU A 68 1 19 HELIX 4 4 HIS A 70 SER A 88 1 19 HELIX 5 5 GLY B 2 GLU B 23 1 22 HELIX 6 6 HIS B 25 SER B 44 1 20 HELIX 7 7 THR B 50 GLY B 69 1 20 HELIX 8 8 HIS B 70 SER B 88 1 19 LINK N SER A 1 NI NI A 94 1555 1555 1.88 LINK O SER A 1 NI NI A 94 1555 1555 2.16 LINK NE2 HIS A 6 NI NI A 94 1555 1555 2.08 LINK N SER B 1 NI NI A 94 1555 1555 1.92 LINK O SER B 1 NI NI A 94 1555 1555 2.09 LINK NE2 HIS B 6 NI NI A 94 1555 1555 2.10 SITE 1 AC1 4 SER A 1 HIS A 6 SER B 1 HIS B 6 CRYST1 35.660 56.207 83.923 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 0.028043 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017792 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011916 0.00000