1KRJ - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 09-JAN-02 1KRJ

TITLE ENGINEERING CALCIUM-BINDING SITE INTO CYTOCHROME C TITLE 2 PEROXIDASE (CCP)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C PEROXIDASE; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: PROXIMAL CATION-BINDING LOOP; COMPND 5 SYNONYM: CCP; COMPND 6 EC: 1.11.1.5; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE; SOURCE 3 ORGANISM_COMMON: BAKER'S YEAST; SOURCE 4 ORGANISM_TAXID: 4932; SOURCE 5 GENE: OPBYC; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PT7CCP

KEYWDS CATION-BINDING LOOP, CALCIUM SELECTIVITY, TRP191 CATIONIC- KEYWDS 2 RADICAL, OPEN/CLOSED CONFORMER, BIDENTATE BOND, PENTAGONAL KEYWDS 3 BIPYRIMIDAL GEOMETRY, LIGNIN PEROXIDASE, OXIDOREDUCTASE

EXPDTA X-RAY DIFFRACTION

AUTHOR C.A.BONAGURA,B.BHASKAR,M.SUNDARAMOORTHY,T.L.POULOS

REVDAT 2 24-FEB-09 1KRJ 1 VERSN REVDAT 1 23-JAN-02 1KRJ 0

JRNL AUTH C.A.BONAGURA,B.BHASKAR,M.SUNDARAMOORTHY,T.L.POULOS JRNL TITL CONVERSION OF AN ENGINEERED POTASSIUM-BINDING SITE JRNL TITL 2 INTO A CALCIUM-SELECTIVE SITE IN CYTOCHROME C JRNL TITL 3 PEROXIDASE. JRNL REF J.BIOL.CHEM. V. 274 37827 1999 JRNL REFN ISSN 0021-9258 JRNL PMID 10608846 JRNL DOI 10.1074/JBC.274.53.37827

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 25912 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 SET) : 0.192 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1645 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.09 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.1921 REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2406 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 44 REMARK 3 SOLVENT ATOMS : 599 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1KRJ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-JAN-02. REMARK 100 THE RCSB ID CODE IS RCSB015267.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-OCT-98 REMARK 200 TEMPERATURE (KELVIN) : 110 REMARK 200 PH : 6.0 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28764 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : 10.863 REMARK 200 R MERGE (I) : 0.08200 REMARK 200 R SYM (I) : 0.05700 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 19.2082 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.3 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.42000 REMARK 200 R SYM FOR SHELL (I) : 0.35400 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.302 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: POTASSIUM-BINDING CCP (CCPK2) REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.85 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.06 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2-METHYL-2,4-PENTANEDIOL (MPD), REMARK 280 POTASSIUM PHOSPHATE, PH 6.0, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 277K

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 53.51700 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 25.55000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.72900 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 25.55000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 53.51700 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.72900 REMARK 290 SMTRY3 4 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 300 REMARK: LARGELY A HELICAL BUNDLE PROTEIN CONTAINING A DISTINCT REMARK 300 DISTAL AND PROXIMAL HEME DOMAINS. PROXIMAL HEME DOMIAN CONTAINS REMARK 300 THE CATION-BINDING LOOP WHICH IN THE PRESENT CASE CONTAINS REMARK 300 CALCIUM COORDINATED BY THE RESIDUES 190-199 OF THE LOOP

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 400 REMARK 400 COMPOUND REMARK 400 Largely a helical bundle protein containing REMARK 400 a distinct distal and proximal heme domains. REMARK 400 Proximal heme domain contains the cation-binding REMARK 400 loop which in the present case contains Calcium REMARK 400 coordinated by the residues 190-199 of the loop.

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 12 115.20 -33.33 REMARK 500 ASP A 33 50.14 -91.69 REMARK 500 ASP A 148 34.83 -96.53 REMARK 500 HIS A 175 4.42 -67.69 REMARK 500 THR A 194 76.90 -113.65 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 365 DISTANCE = 5.36 ANGSTROMS REMARK 525 HOH A 389 DISTANCE = 10.16 ANGSTROMS REMARK 525 HOH A 462 DISTANCE = 11.25 ANGSTROMS REMARK 525 HOH A 506 DISTANCE = 9.17 ANGSTROMS REMARK 525 HOH A 516 DISTANCE = 11.56 ANGSTROMS REMARK 525 HOH A 521 DISTANCE = 8.64 ANGSTROMS REMARK 525 HOH A 577 DISTANCE = 10.92 ANGSTROMS REMARK 525 HOH A 580 DISTANCE = 7.17 ANGSTROMS REMARK 525 HOH A 593 DISTANCE = 11.54 ANGSTROMS REMARK 525 HOH A 663 DISTANCE = 5.86 ANGSTROMS REMARK 525 HOH A 676 DISTANCE = 9.52 ANGSTROMS REMARK 525 HOH A 691 DISTANCE = 7.39 ANGSTROMS REMARK 525 HOH A 701 DISTANCE = 7.44 ANGSTROMS REMARK 525 HOH A 854 DISTANCE = 5.22 ANGSTROMS REMARK 525 HOH A 858 DISTANCE = 8.00 ANGSTROMS REMARK 525 HOH A 899 DISTANCE = 7.32 ANGSTROMS

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 HEM A 296 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 175 NE2 REMARK 620 2 HOH A 718 O 171.5 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 500 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 197 O REMARK 620 2 THR A 176 O 92.4 REMARK 620 3 THR A 176 OG1 92.5 72.1 REMARK 620 4 ASP A 199 OD1 85.0 135.1 63.3 REMARK 620 5 ASP A 192 OD1 150.6 75.9 108.7 122.4 REMARK 620 6 ASP A 192 OD2 163.9 87.9 72.3 83.4 44.5 REMARK 620 7 THR A 194 OG1 95.8 151.0 135.0 73.5 83.6 91.7 REMARK 620 8 THR A 194 O 80.3 83.3 154.0 139.6 71.8 115.7 70.8 REMARK 620 N 1 2 3 4 5 6 7

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 500 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 296

DBREF 1KRJ A 1 294 UNP P00431 CCPR_YEAST 68 361

SEQADV 1KRJ THR A 176 UNP P00431 ALA 243 ENGINEERED SEQADV 1KRJ ASP A 192 UNP P00431 GLY 259 ENGINEERED SEQADV 1KRJ THR A 194 UNP P00431 ALA 261 ENGINEERED SEQADV 1KRJ ASP A 199 UNP P00431 THR 266 ENGINEERED SEQADV 1KRJ SER A 201 UNP P00431 GLU 268 ENGINEERED

SEQRES 1 A 294 THR THR PRO LEU VAL HIS VAL ALA SER VAL GLU LYS GLY SEQRES 2 A 294 ARG SER TYR GLU ASP PHE GLN LYS VAL TYR ASN ALA ILE SEQRES 3 A 294 ALA LEU LYS LEU ARG GLU ASP ASP GLU TYR ASP ASN TYR SEQRES 4 A 294 ILE GLY TYR GLY PRO VAL LEU VAL ARG LEU ALA TRP HIS SEQRES 5 A 294 THR SER GLY THR TRP ASP LYS HIS ASP ASN THR GLY GLY SEQRES 6 A 294 SER TYR GLY GLY THR TYR ARG PHE LYS LYS GLU PHE ASN SEQRES 7 A 294 ASP PRO SER ASN ALA GLY LEU GLN ASN GLY PHE LYS PHE SEQRES 8 A 294 LEU GLU PRO ILE HIS LYS GLU PHE PRO TRP ILE SER SER SEQRES 9 A 294 GLY ASP LEU PHE SER LEU GLY GLY VAL THR ALA VAL GLN SEQRES 10 A 294 GLU MET GLN GLY PRO LYS ILE PRO TRP ARG CYS GLY ARG SEQRES 11 A 294 VAL ASP THR PRO GLU ASP THR THR PRO ASP ASN GLY ARG SEQRES 12 A 294 LEU PRO ASP ALA ASP LYS ASP ALA ASP TYR VAL ARG THR SEQRES 13 A 294 PHE PHE GLN ARG LEU ASN MET ASN ASP ARG GLU VAL VAL SEQRES 14 A 294 ALA LEU MET GLY ALA HIS THR LEU GLY LYS THR HIS LEU SEQRES 15 A 294 LYS ASN SER GLY TYR GLU GLY PRO TRP ASP ALA THR ASN SEQRES 16 A 294 ASN VAL PHE ASP ASN SER PHE TYR LEU ASN LEU LEU ASN SEQRES 17 A 294 GLU ASP TRP LYS LEU GLU LYS ASN ASP ALA ASN ASN GLU SEQRES 18 A 294 GLN TRP ASP SER LYS SER GLY TYR MET MET LEU PRO THR SEQRES 19 A 294 ASP TYR SER LEU ILE GLN ASP PRO LYS TYR LEU SER ILE SEQRES 20 A 294 VAL LYS GLU TYR ALA ASN ASP GLN ASP LYS PHE PHE LYS SEQRES 21 A 294 ASP PHE SER LYS ALA PHE GLU LYS LEU LEU GLU ASN GLY SEQRES 22 A 294 ILE THR PHE PRO LYS ASP ALA PRO SER PRO PHE ILE PHE SEQRES 23 A 294 LYS THR LEU GLU GLU GLN GLY LEU

HET K A 500 1 HET HEM A 296 43

HETNAM K POTASSIUM ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE

HETSYN HEM HEME

FORMUL 2 K K 1+ FORMUL 3 HEM C34 H32 FE N4 O4 FORMUL 4 HOH *599(H2 O)

HELIX 1 1 SER A 15 ASP A 33 1 19 HELIX 2 2 GLU A 35 ILE A 40 1 6 HELIX 3 3 TYR A 42 GLY A 55 1 14 HELIX 4 4 GLY A 69 ARG A 72 5 4 HELIX 5 5 PHE A 73 ASN A 78 1 6 HELIX 6 6 ASP A 79 ALA A 83 5 5 HELIX 7 7 GLY A 84 GLY A 84 5 1 HELIX 8 8 LEU A 85 PHE A 99 1 15 HELIX 9 9 SER A 103 MET A 119 1 17 HELIX 10 10 PRO A 134 THR A 138 5 5 HELIX 11 11 ASP A 150 ARG A 160 1 11 HELIX 12 12 ASN A 164 GLY A 173 1 10 HELIX 13 13 ALA A 174 LEU A 177 5 4 HELIX 14 14 HIS A 181 GLY A 186 1 6 HELIX 15 15 ASN A 200 GLU A 209 1 10 HELIX 16 16 LEU A 232 ASP A 241 1 10 HELIX 17 17 ASP A 241 ASN A 253 1 13 HELIX 18 18 ASP A 254 ASN A 272 1 19 HELIX 19 19 THR A 288 GLY A 293 1 6

SHEET 1 A 2 HIS A 6 VAL A 7 0 SHEET 2 A 2 ILE A 274 THR A 275 1 O THR A 275 N HIS A 6 SHEET 1 B 3 TRP A 211 LYS A 215 0 SHEET 2 B 3 GLU A 221 SER A 225 -1 O GLN A 222 N GLU A 214 SHEET 3 B 3 MET A 230 MET A 231 -1 O MET A 231 N TRP A 223

LINK NE2 HIS A 175 FE HEM A 296 1555 1555 2.17 LINK FE HEM A 296 O HOH A 718 1555 1555 2.25 LINK K K A 500 O VAL A 197 1555 1555 2.49 LINK K K A 500 O THR A 176 1555 1555 2.37 LINK K K A 500 OG1 THR A 176 1555 1555 2.33 LINK K K A 500 OD1 ASP A 199 1555 1555 2.56 LINK K K A 500 OD1 ASP A 192 1555 1555 3.08 LINK K K A 500 OD2 ASP A 192 1555 1555 2.50 LINK K K A 500 OG1 THR A 194 1555 1555 2.44 LINK K K A 500 O THR A 194 1555 1555 2.12

SITE 1 AC1 5 THR A 176 ASP A 192 THR A 194 VAL A 197 SITE 2 AC1 5 ASP A 199 SITE 1 AC2 23 PRO A 44 TRP A 51 PRO A 145 ASP A 146 SITE 2 AC2 23 ALA A 147 LEU A 171 MET A 172 ALA A 174 SITE 3 AC2 23 HIS A 175 LEU A 177 GLY A 178 LYS A 179 SITE 4 AC2 23 THR A 180 HIS A 181 ASN A 184 SER A 185 SITE 5 AC2 23 TRP A 191 LEU A 232 THR A 234 HOH A 319 SITE 6 AC2 23 HOH A 482 HOH A 483 HOH A 718

CRYST1 107.034 75.458 51.100 90.00 90.00 90.00 P 21 21 21 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 0.009343 0.000000 0.000000 0.00000

SCALE2 0.000000 0.013252 0.000000 0.00000

SCALE3 0.000000 0.000000 0.019569 0.00000