HEADER OXYGEN STORAGE 19-DEC-95 1IRC TITLE CYSTEINE RICH INTESTINAL PROTEIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: MYOGLOBIN (METAQUO); COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PHYSETER CATODON; SOURCE 3 ORGANISM_COMMON: SPERM WHALE; SOURCE 4 ORGANISM_TAXID: 9755; SOURCE 5 GENE: SPERM WHALE MYOGLOBIN SYNTHETI; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PMB413B WITH HISTIDINE 93 REPLACED WITH SOURCE 9 GLYCINE; SOURCE 10 EXPRESSION_SYSTEM_GENE: SPERM WHALE MYOGLOBIN SYNTHETIC GENE KEYWDS OXYGEN STORAGE, RESPIRATORY PROTEIN, HEME EXPDTA X-RAY DIFFRACTION AUTHOR D.E.BARRICK,M.FEESE REVDAT 4 07-FEB-24 1IRC 1 REMARK REVDAT 3 03-NOV-21 1IRC 1 REMARK SEQADV REVDAT 2 24-FEB-09 1IRC 1 VERSN REVDAT 1 11-JUL-96 1IRC 0 JRNL AUTH D.BARRICK JRNL TITL REPLACEMENT OF THE PROXIMAL LIGAND OF SPERM WHALE MYOGLOBIN JRNL TITL 2 WITH FREE IMIDAZOLE IN THE MUTANT HIS-93-->GLY. JRNL REF BIOCHEMISTRY V. 33 6546 1994 JRNL REFN ISSN 0006-2960 JRNL PMID 8204590 JRNL DOI 10.1021/BI00187A023 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH D.BARRICK REMARK 1 TITL REPLACEMENT OF THE PROXIMAL LIGAND OF SPERM WHALE MYOGLOBIN REMARK 1 TITL 2 WITH FREE IMIDAZOLE IN THE MUTANT HIS-93-->GLY REMARK 1 REF BIOCHEMISTRY V. 33 6546 1994 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 2.17 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.17 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 7171 REMARK 3 REMARK 3 USING DATA ABOVE SIGMA CUTOFF. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : NULL REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 USING ALL DATA, NO SIGMA CUTOFF. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.1770 REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1168 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 48 REMARK 3 SOLVENT ATOMS : 20 REMARK 3 REMARK 3 WILSON B VALUE (FROM FCALC, A**2) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. RMS WEIGHT COUNT REMARK 3 BOND LENGTHS (A) : NULL ; NULL ; NULL REMARK 3 BOND ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TORSION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : NULL ; NULL ; NULL REMARK 3 GENERAL PLANES (A) : NULL ; NULL ; NULL REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS (A) : NULL ; NULL ; NULL REMARK 3 REMARK 3 INCORRECT CHIRAL-CENTERS (COUNT) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : NULL REMARK 3 REMARK 3 RESTRAINT LIBRARIES. REMARK 3 STEREOCHEMISTRY : PROTGEO.DAT REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1IRC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000174237. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : XUONG-HAMLIN MULTIWIRE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SDMS REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7676 REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.0 REMARK 200 DATA REDUNDANCY : 3.300 REMARK 200 R MERGE (I) : 0.03300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.41 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 20.07500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 39.57000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 24.52000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 39.57000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 20.07500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 24.52000 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 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 450 REMARK 450 SOURCE REMARK 450 THE PROTEIN WAS PRODUCED USING AN ESCHERICHIA COLI REMARK 450 EXPRESSION SYSTEM OF SPRINGER AND SLIGAR [(1987) PROC. NAT. REMARK 450 ACAD. SCI. U.S.A. 84, 8961-8965], EXCEPT THAT THE ORIGINAL REMARK 450 ASN CODON AT POSITION 122 OF THEIR GENE WAS REPLACED WITH REMARK 450 ASP TO GIVE THE WILD TYPE SEQUENCE. IN ADDITION, THE REMARK 450 PROTEIN LIKELY CONTAINS AN N-TERMINAL FORMYL-METHIONINE, REMARK 450 ALTHOUGH THIS RESIDUE IS NOT WELL DETERMINED BY THE REMARK 450 ELECTRON DENSITY. THE PROTEIN WAS PURIFIED AS DESCRIBED IN REMARK 450 BARRICK, D. (1994) BIOCHEMISTRY 33, 6546-6554. 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 MET A 0 REMARK 465 GLY A 153 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 A 34 CG CD CE NZ REMARK 470 ARG A 45 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 47 CB CG CD CE NZ REMARK 470 LYS A 50 CG CD CE NZ REMARK 470 GLU A 59 CG CD OE1 OE2 REMARK 470 LYS A 62 CE NZ REMARK 470 LYS A 78 CE NZ REMARK 470 GLU A 83 CG CD OE1 OE2 REMARK 470 LYS A 140 CG CD CE NZ REMARK 470 LYS A 145 CD CE NZ REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU A 4 CD GLU A 4 OE2 0.099 REMARK 500 GLU A 6 CD GLU A 6 OE1 0.072 REMARK 500 GLU A 18 CD GLU A 18 OE1 0.073 REMARK 500 GLU A 38 CD GLU A 38 OE2 0.078 REMARK 500 GLU A 41 CD GLU A 41 OE2 0.080 REMARK 500 GLU A 52 CD GLU A 52 OE1 0.077 REMARK 500 GLU A 54 CD GLU A 54 OE1 0.112 REMARK 500 GLU A 105 CD GLU A 105 OE2 0.080 REMARK 500 GLU A 109 CD GLU A 109 OE2 0.066 REMARK 500 GLU A 148 CD GLU A 148 OE1 0.086 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ASP A 20 CB - CG - OD2 ANGL. DEV. = 5.9 DEGREES REMARK 500 ASP A 44 CB - CG - OD1 ANGL. DEV. = 6.5 DEGREES REMARK 500 ASP A 44 CB - CG - OD2 ANGL. DEV. = -9.3 DEGREES REMARK 500 TYR A 103 CB - CG - CD2 ANGL. DEV. = 4.2 DEGREES REMARK 500 ARG A 118 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 TYR A 146 CB - CG - CD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 TYR A 146 CB - CG - CD1 ANGL. DEV. = 4.7 DEGREES 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 HIS A 81 57.11 -100.16 REMARK 500 LYS A 98 68.69 63.22 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 HEM A 154 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 IMD A 155 N3 REMARK 620 2 HEM A 154 NA 81.4 REMARK 620 3 HEM A 154 NB 94.6 84.2 REMARK 620 4 HEM A 154 NC 101.0 168.9 84.9 REMARK 620 5 HEM A 154 ND 83.5 96.9 177.7 94.1 REMARK 620 6 HOH A 156 O 170.7 106.7 90.8 72.0 90.8 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 HEM A 154 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IMD A 155 DBREF 1IRC A 1 153 UNP P02185 MYG_PHYCA 1 153 SEQADV 1IRC GLY A 93 UNP P02185 HIS 93 ENGINEERED MUTATION SEQRES 1 A 154 MET VAL LEU SER GLU GLY GLU TRP GLN LEU VAL LEU HIS SEQRES 2 A 154 VAL TRP ALA LYS VAL GLU ALA ASP VAL ALA GLY HIS GLY SEQRES 3 A 154 GLN ASP ILE LEU ILE ARG LEU PHE LYS SER HIS PRO GLU SEQRES 4 A 154 THR LEU GLU LYS PHE ASP ARG PHE LYS HIS LEU LYS THR SEQRES 5 A 154 GLU ALA GLU MET LYS ALA SER GLU ASP LEU LYS LYS HIS SEQRES 6 A 154 GLY VAL THR VAL LEU THR ALA LEU GLY ALA ILE LEU LYS SEQRES 7 A 154 LYS LYS GLY HIS HIS GLU ALA GLU LEU LYS PRO LEU ALA SEQRES 8 A 154 GLN SER GLY ALA THR LYS HIS LYS ILE PRO ILE LYS TYR SEQRES 9 A 154 LEU GLU PHE ILE SER GLU ALA ILE ILE HIS VAL LEU HIS SEQRES 10 A 154 SER ARG HIS PRO GLY ASP PHE GLY ALA ASP ALA GLN GLY SEQRES 11 A 154 ALA MET ASN LYS ALA LEU GLU LEU PHE ARG LYS ASP ILE SEQRES 12 A 154 ALA ALA LYS TYR LYS GLU LEU GLY TYR GLN GLY HET HEM A 154 43 HET IMD A 155 5 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM IMD IMIDAZOLE HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 IMD C3 H5 N2 1+ FORMUL 4 HOH *20(H2 O) HELIX 1 1 GLU A 4 ALA A 19 1 16 HELIX 2 2 VAL A 21 SER A 35 1 15 HELIX 3 3 PRO A 37 LYS A 42 5 6 HELIX 4 4 GLU A 52 ALA A 57 1 6 HELIX 5 5 GLU A 59 LYS A 78 1 20 HELIX 6 6 GLU A 83 THR A 95 1 13 HELIX 7 7 ILE A 101 ARG A 118 1 18 HELIX 8 8 PRO A 120 ASP A 122 5 3 HELIX 9 9 ALA A 125 LEU A 149 1 25 LINK FE HEM A 154 N3 IMD A 155 1555 1555 1.91 LINK FE HEM A 154 O HOH A 156 1555 1555 2.62 SITE 1 AC1 12 LYS A 42 PHE A 43 THR A 67 VAL A 68 SITE 2 AC1 12 LEU A 89 SER A 92 HIS A 97 ILE A 99 SITE 3 AC1 12 TYR A 103 IMD A 155 HOH A 156 HOH A 173 SITE 1 AC2 4 LEU A 89 SER A 92 HIS A 97 HEM A 154 CRYST1 40.150 49.040 79.140 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 0.024907 0.000000 0.000000 0.00000 SCALE2 0.000000 0.020392 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012636 0.00000