HEADER METAL BINDING PROTEIN 04-JUN-21 7N4F TITLE NI-BOUND CRYSTAL STRUCTURE OF THE ENGINEERED CYT CB562 VARIANT, AB2- TITLE 2 H100A, CRYSTALLIZED IN THE PRESENCE OF NI(II) COMPND MOL_ID: 1; COMPND 2 MOLECULE: SOLUBLE CYTOCHROME B562; COMPND 3 CHAIN: C, A; COMPND 4 SYNONYM: CYTOCHROME B-562; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 GENE: CYBC; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS METAL SELECTIVITY, IRVING-WILLIAMS SERIES, METAL BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR T.S.CHOI,F.A.TEZCAN REVDAT 4 23-OCT-24 7N4F 1 REMARK REVDAT 3 18-OCT-23 7N4F 1 REMARK REVDAT 2 29-JUN-22 7N4F 1 JRNL REVDAT 1 15-JUN-22 7N4F 0 JRNL AUTH T.S.CHOI,F.A.TEZCAN JRNL TITL OVERCOMING UNIVERSAL RESTRICTIONS ON METAL SELECTIVITY BY JRNL TITL 2 PROTEIN DESIGN. JRNL REF NATURE V. 603 522 2022 JRNL REFN ESSN 1476-4687 JRNL PMID 35236987 JRNL DOI 10.1038/S41586-022-04469-8 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.15.2_3472 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : GEOSTD + MONOMER LIBRARY + CDL V1.2 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 35.03 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.450 REMARK 3 COMPLETENESS FOR RANGE (%) : 82.8 REMARK 3 NUMBER OF REFLECTIONS : 20432 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.212 REMARK 3 R VALUE (WORKING SET) : 0.208 REMARK 3 FREE R VALUE : 0.254 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.970 REMARK 3 FREE R VALUE TEST SET COUNT : 3329 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 35.0300 - 5.1900 0.90 1355 154 0.1464 0.1601 REMARK 3 2 5.1900 - 4.1200 0.83 1261 138 0.1534 0.1832 REMARK 3 3 4.1200 - 3.6000 0.84 1258 135 0.1726 0.2100 REMARK 3 4 3.6000 - 3.2700 0.88 1335 146 0.2112 0.2609 REMARK 3 5 3.2700 - 3.0400 0.88 1334 145 0.2223 0.2885 REMARK 3 6 3.0400 - 2.8600 0.78 1174 137 0.2266 0.2581 REMARK 3 7 2.8600 - 2.7100 0.82 1253 139 0.2318 0.2656 REMARK 3 8 2.7100 - 2.6000 0.88 1281 145 0.2322 0.3264 REMARK 3 9 2.6000 - 2.5000 0.90 1392 149 0.2227 0.2848 REMARK 3 10 2.5000 - 2.4100 0.89 1355 150 0.2273 0.2555 REMARK 3 11 2.4100 - 2.3300 0.86 1300 148 0.2287 0.2631 REMARK 3 12 2.3300 - 2.2700 0.77 1152 125 0.2504 0.3086 REMARK 3 13 2.2700 - 2.2100 0.72 1129 119 0.2419 0.3254 REMARK 3 14 2.2100 - 2.1500 0.80 1153 131 0.2189 0.2781 REMARK 3 15 2.1500 - 2.1100 0.84 1304 150 0.2313 0.3033 REMARK 3 16 2.1100 - 2.0600 0.88 1333 142 0.2557 0.3109 REMARK 3 17 2.0600 - 2.0200 0.87 1317 147 0.2357 0.2940 REMARK 3 18 2.0200 - 1.9800 0.87 1310 147 0.2555 0.3128 REMARK 3 19 1.9800 - 1.9500 0.81 1210 142 0.2488 0.3409 REMARK 3 20 1.9500 - 1.9100 0.72 1095 123 0.2599 0.3983 REMARK 3 21 1.9100 - 1.8800 0.74 1123 121 0.2627 0.3347 REMARK 3 22 1.8800 - 1.8500 0.75 1143 127 0.2883 0.3407 REMARK 3 23 1.8500 - 1.8300 0.82 1219 129 0.2842 0.3546 REMARK 3 24 1.8300 - 1.8000 0.83 1282 140 0.3077 0.3444 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.272 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 28.804 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 25.88 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 32.97 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.008 1772 REMARK 3 ANGLE : 0.927 2428 REMARK 3 CHIRALITY : 0.042 246 REMARK 3 PLANARITY : 0.005 320 REMARK 3 DIHEDRAL : 12.878 1434 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 7N4F COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-JUN-21. REMARK 100 THE DEPOSITION ID IS D_1000257341. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-MAY-21 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.59 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : IMOSFLM REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20432 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 35.030 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.3 REMARK 200 DATA REDUNDANCY : 11.90 REMARK 200 R MERGE (I) : 0.58450 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 271.2900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 96.6 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.56060 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 19.40 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: 2BC5 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.36 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG1500 25%, MGCL2 200 MM, PH 7 MOPS REMARK 280 100 MM, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 42.32500 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3200 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11160 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -59.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 LYS C 15 CE NZ REMARK 470 ASP C 21 CG OD1 OD2 REMARK 470 GLU C 57 CG CD OE1 OE2 REMARK 470 LYS C 85 CG CD CE NZ REMARK 470 GLU A 18 CG CD OE1 OE2 REMARK 470 LYS A 42 CG CD CE NZ REMARK 470 LYS A 47 CG CD CE NZ REMARK 470 ASP A 50 CG OD1 OD2 REMARK 470 LYS A 85 CG CD CE NZ 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 329 O HOH A 330 2.12 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 LYS A 47 8.81 -64.55 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 HEC C 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET C 7 SD REMARK 620 2 HEC C 201 NA 92.1 REMARK 620 3 HEC C 201 NB 89.3 85.6 REMARK 620 4 HEC C 201 NC 94.0 173.9 95.1 REMARK 620 5 HEC C 201 ND 97.4 90.7 172.4 87.9 REMARK 620 6 HIS C 102 NE2 169.7 82.6 81.5 91.5 91.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NI A 202 NI REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS C 67 NE2 REMARK 620 2 HIS C 71 NE2 87.2 REMARK 620 3 HIS A 67 NE2 177.4 91.9 REMARK 620 4 HIS A 71 NE2 89.7 174.1 90.9 REMARK 620 5 HOH A 325 O 86.2 91.1 91.3 83.7 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEC A 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 MET A 7 SD REMARK 620 2 HEC A 201 NA 90.5 REMARK 620 3 HEC A 201 NB 86.5 89.1 REMARK 620 4 HEC A 201 NC 88.9 179.3 90.5 REMARK 620 5 HEC A 201 ND 93.6 92.4 178.5 88.0 REMARK 620 6 HIS A 102 NE2 176.1 89.3 89.7 91.2 90.3 REMARK 620 N 1 2 3 4 5 DBREF 7N4F C 1 106 UNP P0ABE7 C562_ECOLX 23 128 DBREF 7N4F A 1 106 UNP P0ABE7 C562_ECOLX 23 128 SEQADV 7N4F TRP C 59 UNP P0ABE7 LYS 81 ENGINEERED MUTATION SEQADV 7N4F HIS C 60 UNP P0ABE7 ASP 82 ENGINEERED MUTATION SEQADV 7N4F HIS C 67 UNP P0ABE7 ILE 89 ENGINEERED MUTATION SEQADV 7N4F HIS C 71 UNP P0ABE7 GLN 93 ENGINEERED MUTATION SEQADV 7N4F CYS C 96 UNP P0ABE7 THR 118 ENGINEERED MUTATION SEQADV 7N4F HIS C 97 UNP P0ABE7 THR 119 ENGINEERED MUTATION SEQADV 7N4F CYS C 98 UNP P0ABE7 ARG 120 ENGINEERED MUTATION SEQADV 7N4F CYS C 101 UNP P0ABE7 TYR 123 ENGINEERED MUTATION SEQADV 7N4F HIS C 104 UNP P0ABE7 LYS 126 ENGINEERED MUTATION SEQADV 7N4F TRP A 59 UNP P0ABE7 LYS 81 ENGINEERED MUTATION SEQADV 7N4F HIS A 60 UNP P0ABE7 ASP 82 ENGINEERED MUTATION SEQADV 7N4F HIS A 67 UNP P0ABE7 ILE 89 ENGINEERED MUTATION SEQADV 7N4F HIS A 71 UNP P0ABE7 GLN 93 ENGINEERED MUTATION SEQADV 7N4F CYS A 96 UNP P0ABE7 THR 118 ENGINEERED MUTATION SEQADV 7N4F HIS A 97 UNP P0ABE7 THR 119 ENGINEERED MUTATION SEQADV 7N4F CYS A 98 UNP P0ABE7 ARG 120 ENGINEERED MUTATION SEQADV 7N4F CYS A 101 UNP P0ABE7 TYR 123 ENGINEERED MUTATION SEQADV 7N4F HIS A 104 UNP P0ABE7 LYS 126 ENGINEERED MUTATION SEQRES 1 C 106 ALA ASP LEU GLU ASP ASN MET GLU THR LEU ASN ASP ASN SEQRES 2 C 106 LEU LYS VAL ILE GLU LYS ALA ASP ASN ALA ALA GLN VAL SEQRES 3 C 106 LYS ASP ALA LEU THR LYS MET ARG ALA ALA ALA LEU ASP SEQRES 4 C 106 ALA GLN LYS ALA THR PRO PRO LYS LEU GLU ASP LYS SER SEQRES 5 C 106 PRO ASP SER PRO GLU MET TRP HIS PHE ARG HIS GLY PHE SEQRES 6 C 106 ASP HIS LEU VAL GLY HIS ILE ASP ASP ALA LEU LYS LEU SEQRES 7 C 106 ALA ASN GLU GLY LYS VAL LYS GLU ALA GLN ALA ALA ALA SEQRES 8 C 106 GLU GLN LEU LYS CYS HIS CYS ASN ALA CYS HIS GLN HIS SEQRES 9 C 106 TYR ARG SEQRES 1 A 106 ALA ASP LEU GLU ASP ASN MET GLU THR LEU ASN ASP ASN SEQRES 2 A 106 LEU LYS VAL ILE GLU LYS ALA ASP ASN ALA ALA GLN VAL SEQRES 3 A 106 LYS ASP ALA LEU THR LYS MET ARG ALA ALA ALA LEU ASP SEQRES 4 A 106 ALA GLN LYS ALA THR PRO PRO LYS LEU GLU ASP LYS SER SEQRES 5 A 106 PRO ASP SER PRO GLU MET TRP HIS PHE ARG HIS GLY PHE SEQRES 6 A 106 ASP HIS LEU VAL GLY HIS ILE ASP ASP ALA LEU LYS LEU SEQRES 7 A 106 ALA ASN GLU GLY LYS VAL LYS GLU ALA GLN ALA ALA ALA SEQRES 8 A 106 GLU GLN LEU LYS CYS HIS CYS ASN ALA CYS HIS GLN HIS SEQRES 9 A 106 TYR ARG HET HEC C 201 43 HET HEC A 201 43 HET NI A 202 1 HETNAM HEC HEME C HETNAM NI NICKEL (II) ION FORMUL 3 HEC 2(C34 H34 FE N4 O4) FORMUL 5 NI NI 2+ FORMUL 6 HOH *74(H2 O) HELIX 1 AA1 ASP C 2 ALA C 20 1 19 HELIX 2 AA2 ASN C 22 GLN C 41 1 20 HELIX 3 AA3 PRO C 45 GLU C 49 5 5 HELIX 4 AA4 SER C 55 GLU C 81 1 27 HELIX 5 AA5 LYS C 83 GLN C 93 1 11 HELIX 6 AA6 LEU C 94 ARG C 106 1 13 HELIX 7 AA7 ASP A 2 ALA A 20 1 19 HELIX 8 AA8 ASN A 22 GLN A 41 1 20 HELIX 9 AA9 PRO A 45 GLU A 49 5 5 HELIX 10 AB1 SER A 55 GLU A 81 1 27 HELIX 11 AB2 LYS A 83 GLN A 93 1 11 HELIX 12 AB3 GLN A 93 ARG A 106 1 14 SSBOND 1 CYS C 96 CYS A 96 1555 1555 2.03 LINK SG CYS C 98 CAB HEC C 201 1555 1555 1.78 LINK SG CYS C 101 CAC HEC C 201 1555 1555 1.77 LINK SG CYS A 98 CAB HEC A 201 1555 1555 1.77 LINK SG CYS A 101 CAC HEC A 201 1555 1555 1.77 LINK SD MET C 7 FE HEC C 201 1555 1555 2.43 LINK NE2 HIS C 67 NI NI A 202 1555 1555 2.13 LINK NE2 HIS C 71 NI NI A 202 1555 1555 2.12 LINK NE2 HIS C 102 FE HEC C 201 1555 1555 2.18 LINK SD MET A 7 FE HEC A 201 1555 1555 2.40 LINK NE2 HIS A 67 NI NI A 202 1555 1555 2.14 LINK NE2 HIS A 71 NI NI A 202 1555 1555 2.10 LINK NE2 HIS A 102 FE HEC A 201 1555 1555 2.17 LINK NI NI A 202 O HOH A 325 1555 1555 2.37 CRYST1 34.470 84.650 39.140 90.00 100.51 90.00 P 1 21 1 4 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 0.029011 0.000000 0.005382 0.00000 SCALE2 0.000000 0.011813 0.000000 0.00000 SCALE3 0.000000 0.000000 0.025985 0.00000