HEADER METAL BINDING PROTEIN 23-FEB-21 7LV4 TITLE CU-BOUND CRYSTAL STRUCTURE OF THE ENGINEERED CYT CB562 VARIANT, DICYT2 TITLE 2 - H97A, CRYSTALLIZED IN THE PRESENCE OF CU(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 2 18-OCT-23 7LV4 1 REMARK REVDAT 1 02-MAR-22 7LV4 0 JRNL AUTH T.S.CHOI,F.A.TEZCAN JRNL TITL STRUCTURE-GUIDED METAL SELECTIVITY IN MALLEABLE PROTEIN JRNL TITL 2 INTERFACE MEDIATED BY SINGLE DISULFIDE BOND JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.99 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) : 1.99 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.38 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.390 REMARK 3 COMPLETENESS FOR RANGE (%) : 96.7 REMARK 3 NUMBER OF REFLECTIONS : 14495 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.247 REMARK 3 R VALUE (WORKING SET) : 0.240 REMARK 3 FREE R VALUE : 0.306 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.930 REMARK 3 FREE R VALUE TEST SET COUNT : 2754 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 33.3800 - 5.4000 1.00 1297 142 0.1565 0.1827 REMARK 3 2 5.4000 - 4.2800 1.00 1270 143 0.1733 0.2321 REMARK 3 3 4.2800 - 3.7400 1.00 1304 140 0.1822 0.2838 REMARK 3 4 3.7400 - 3.4000 1.00 1267 139 0.2103 0.2667 REMARK 3 5 3.4000 - 3.1600 0.99 1305 144 0.2582 0.3155 REMARK 3 6 3.1600 - 2.9700 1.00 1277 140 0.2676 0.3417 REMARK 3 7 2.9700 - 2.8200 1.00 1303 143 0.2507 0.3520 REMARK 3 8 2.8200 - 2.7000 1.00 1302 143 0.2840 0.3510 REMARK 3 9 2.7000 - 2.6000 1.00 1267 141 0.2941 0.3658 REMARK 3 10 2.6000 - 2.5100 1.00 1317 146 0.2886 0.3475 REMARK 3 11 2.5100 - 2.4300 1.00 1254 140 0.2916 0.4428 REMARK 3 12 2.4300 - 2.3600 0.99 1322 147 0.2966 0.3756 REMARK 3 13 2.3600 - 2.3000 0.98 1247 139 0.3011 0.3777 REMARK 3 14 2.3000 - 2.2400 0.88 1127 120 0.3380 0.3818 REMARK 3 15 2.2400 - 2.1900 0.90 1176 132 0.3233 0.3586 REMARK 3 16 2.1900 - 2.1400 0.95 1205 138 0.2862 0.3763 REMARK 3 17 2.1400 - 2.1000 0.94 1217 129 0.2765 0.3416 REMARK 3 18 2.1000 - 2.0600 0.92 1215 139 0.2913 0.3253 REMARK 3 19 2.0600 - 2.0200 0.90 1163 123 0.2874 0.3632 REMARK 3 20 2.0200 - 1.9900 0.89 1152 126 0.2923 0.3436 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) : 0.318 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 33.131 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 25.71 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 31.79 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 1784 REMARK 3 ANGLE : 0.906 2440 REMARK 3 CHIRALITY : 0.046 246 REMARK 3 PLANARITY : 0.005 319 REMARK 3 DIHEDRAL : 11.172 1460 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 7LV4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 24-FEB-21. REMARK 100 THE DEPOSITION ID IS D_1000255056. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 16-DEC-20 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7 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 : BRUKER AXS MICROSTAR 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 : APEX II CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SAINT REMARK 200 DATA SCALING SOFTWARE : SADABS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 14495 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.990 REMARK 200 RESOLUTION RANGE LOW (A) : 33.380 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 6.180 REMARK 200 R MERGE (I) : 0.06500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 15.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.99 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.06 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.1 REMARK 200 DATA REDUNDANCY IN SHELL : 3.20 REMARK 200 R MERGE FOR SHELL (I) : 0.29800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.400 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: 2BC5 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.01 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.28 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG1500 25%, CACL2 200 MM, PH 7 MOPS REMARK 280 100 MM, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K 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 41.96350 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: 3720 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11120 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -79.0 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 ASP C 50 CG OD1 OD2 REMARK 470 LYS C 51 CG CD CE NZ REMARK 470 GLU C 57 CG CD OE1 OE2 REMARK 470 HIS C 97 CG ND1 CD2 CE1 NE2 REMARK 470 ASP A 50 CG OD1 OD2 REMARK 470 GLN A 93 CG CD OE1 NE2 REMARK 470 HIS A 97 CG ND1 CD2 CE1 NE2 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 308 O HOH A 313 2.06 REMARK 500 OD1 ASN A 99 O HOH A 301 2.11 REMARK 500 SG CYS C 98 CBB HEC C 201 2.12 REMARK 500 OE1 GLU A 4 O HOH A 302 2.14 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 C 47 0.14 -63.17 REMARK 500 LYS A 47 1.83 -65.81 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 CA C 202 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU C 4 OE2 REMARK 620 2 HEC C 201 O1A 89.4 REMARK 620 N 1 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 87.8 REMARK 620 3 HEC C 201 NB 86.6 84.6 REMARK 620 4 HEC C 201 NC 91.0 178.6 95.9 REMARK 620 5 HEC C 201 ND 92.2 92.8 177.3 86.6 REMARK 620 6 HIS C 102 NE2 168.2 80.8 89.0 100.4 91.6 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CU A 202 CU REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS C 67 NE2 REMARK 620 2 HIS C 71 NE2 93.4 REMARK 620 3 HIS A 67 NE2 175.1 85.6 REMARK 620 4 HIS A 71 NE2 88.1 163.6 94.1 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 204 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH C 310 O REMARK 620 2 GLU A 4 OE1 160.2 REMARK 620 3 HEC A 201 O1D 93.4 101.7 REMARK 620 4 HOH A 302 O 142.7 42.8 108.1 REMARK 620 N 1 2 3 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 94.2 REMARK 620 3 HEC A 201 NB 90.9 89.2 REMARK 620 4 HEC A 201 NC 88.5 177.1 89.5 REMARK 620 5 HEC A 201 ND 90.7 92.3 177.8 88.9 REMARK 620 6 HIS A 102 NE2 174.4 90.4 86.0 86.9 92.3 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 203 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 LYS A 19 O REMARK 620 2 ASP A 21 OD1 75.3 REMARK 620 N 1 DBREF 7LV4 C 1 106 UNP P0ABE7 C562_ECOLX 23 128 DBREF 7LV4 A 1 106 UNP P0ABE7 C562_ECOLX 23 128 SEQADV 7LV4 TRP C 59 UNP P0ABE7 LYS 81 CONFLICT SEQADV 7LV4 HIS C 60 UNP P0ABE7 ASP 82 ENGINEERED MUTATION SEQADV 7LV4 HIS C 67 UNP P0ABE7 ILE 89 ENGINEERED MUTATION SEQADV 7LV4 HIS C 71 UNP P0ABE7 GLN 93 ENGINEERED MUTATION SEQADV 7LV4 CYS C 96 UNP P0ABE7 THR 118 ENGINEERED MUTATION SEQADV 7LV4 HIS C 97 UNP P0ABE7 THR 119 ENGINEERED MUTATION SEQADV 7LV4 CYS C 98 UNP P0ABE7 ARG 120 CONFLICT SEQADV 7LV4 HIS C 100 UNP P0ABE7 ALA 122 ENGINEERED MUTATION SEQADV 7LV4 CYS C 101 UNP P0ABE7 TYR 123 ENGINEERED MUTATION SEQADV 7LV4 HIS C 104 UNP P0ABE7 LYS 126 ENGINEERED MUTATION SEQADV 7LV4 TRP A 59 UNP P0ABE7 LYS 81 CONFLICT SEQADV 7LV4 HIS A 60 UNP P0ABE7 ASP 82 ENGINEERED MUTATION SEQADV 7LV4 HIS A 67 UNP P0ABE7 ILE 89 ENGINEERED MUTATION SEQADV 7LV4 HIS A 71 UNP P0ABE7 GLN 93 ENGINEERED MUTATION SEQADV 7LV4 CYS A 96 UNP P0ABE7 THR 118 ENGINEERED MUTATION SEQADV 7LV4 HIS A 97 UNP P0ABE7 THR 119 ENGINEERED MUTATION SEQADV 7LV4 CYS A 98 UNP P0ABE7 ARG 120 CONFLICT SEQADV 7LV4 HIS A 100 UNP P0ABE7 ALA 122 ENGINEERED MUTATION SEQADV 7LV4 CYS A 101 UNP P0ABE7 TYR 123 ENGINEERED MUTATION SEQADV 7LV4 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 HIS 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 HIS CYS HIS GLN HIS SEQRES 9 A 106 TYR ARG HET HEC C 201 43 HET CA C 202 1 HET HEC A 201 43 HET CU A 202 1 HET CA A 203 1 HET CA A 204 1 HETNAM HEC HEME C HETNAM CA CALCIUM ION HETNAM CU COPPER (II) ION FORMUL 3 HEC 2(C34 H34 FE N4 O4) FORMUL 4 CA 3(CA 2+) FORMUL 6 CU CU 2+ FORMUL 9 HOH *30(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 GLY C 82 1 28 HELIX 5 AA5 LYS C 83 GLN C 93 1 11 HELIX 6 AA6 GLN C 93 ARG C 106 1 14 HELIX 7 AA7 ASP A 2 LYS A 19 1 18 HELIX 8 AA8 ASN A 22 LYS A 42 1 21 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 ARG A 106 1 24 SSBOND 1 CYS C 96 CYS A 96 1555 1555 2.02 LINK SG CYS C 98 CAB HEC C 201 1555 1555 1.77 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 OE2 GLU C 4 CA CA C 202 1555 1555 2.46 LINK SD MET C 7 FE HEC C 201 1555 1555 2.57 LINK NE2 HIS C 67 CU CU A 202 1555 1555 2.07 LINK NE2 HIS C 71 CU CU A 202 1555 1555 2.17 LINK NE2 HIS C 102 FE HEC C 201 1555 1555 2.26 LINK O1A HEC C 201 CA CA C 202 1555 1555 2.30 LINK O HOH C 310 CA CA A 204 1655 1555 2.53 LINK OE1 GLU A 4 CA CA A 204 1555 1555 3.16 LINK SD MET A 7 FE HEC A 201 1555 1555 2.48 LINK O LYS A 19 CA CA A 203 1555 1555 2.68 LINK OD1 ASP A 21 CA CA A 203 1555 1555 2.76 LINK NE2 HIS A 67 CU CU A 202 1555 1555 2.12 LINK NE2 HIS A 71 CU CU A 202 1555 1555 2.21 LINK NE2 HIS A 102 FE HEC A 201 1555 1555 2.27 LINK O1D HEC A 201 CA CA A 204 1555 1555 2.41 LINK CA CA A 204 O HOH A 302 1555 1555 2.25 CRYST1 33.964 83.927 38.541 90.00 100.67 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 0.029443 0.000000 0.005547 0.00000 SCALE2 0.000000 0.011915 0.000000 0.00000 SCALE3 0.000000 0.000000 0.026403 0.00000