HEADER OXYGEN STORAGE/TRANSPORT 11-MAR-99 4VHB TITLE THIOCYANATE ADDUCT OF THE BACTERIAL HEMOGLOBIN FROM VITREOSCILLA SP. COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (HEMOGLOBIN); COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: SOLUBLE CYTOCHROME O; COMPND 5 ENGINEERED: YES; COMPND 6 OTHER_DETAILS: THIOCYANATE IS LIGANDED TO EACH MONOMER SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: VITREOSCILLA STERCORARIA; SOURCE 3 ORGANISM_TAXID: 61; SOURCE 4 STRAIN: C1; SOURCE 5 ATCC: ATCC 15218; SOURCE 6 COLLECTION: ATCC 15218; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: DH5-ALPHA; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PDH88; SOURCE 11 EXPRESSION_SYSTEM_GENE: VGB KEYWDS HEMOPROTEIN, OXYGEN TRANSPORT, OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR M.BOLOGNESI,A.BOFFI,M.COLETTA,A.MOZZARELLI,A.PESCE,C.TARRICONE, AUTHOR 2 P.ASCENZI REVDAT 4 27-DEC-23 4VHB 1 REMARK LINK REVDAT 3 24-FEB-09 4VHB 1 VERSN REVDAT 2 01-APR-03 4VHB 1 JRNL REVDAT 1 31-AUG-99 4VHB 0 JRNL AUTH M.BOLOGNESI,A.BOFFI,M.COLETTA,A.MOZZARELLI,A.PESCE, JRNL AUTH 2 C.TARRICONE,P.ASCENZI JRNL TITL ANTICOOPERATIVE LIGAND BINDING PROPERTIES OF RECOMBINANT JRNL TITL 2 FERRIC VITREOSCILLA HOMODIMERIC HEMOGLOBIN: A THERMODYNAMIC, JRNL TITL 3 KINETIC AND X-RAY CRYSTALLOGRAPHIC STUDY. JRNL REF J.MOL.BIOL. V. 291 637 1999 JRNL REFN ISSN 0022-2836 JRNL PMID 10448042 JRNL DOI 10.1006/JMBI.1999.2975 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : TNT 5E REMARK 3 AUTHORS : TRONRUD,TEN EYCK,MATTHEWS REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 28861 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) : 0.1990 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL 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) : 28861 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2082 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 92 REMARK 3 SOLVENT ATOMS : 225 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) : 0.015 ; 30.000; 2216 REMARK 3 BOND ANGLES (DEGREES) : 2.580 ; 40.000; 3000 REMARK 3 TORSION ANGLES (DEGREES) : 14.983; 0.000 ; 1262 REMARK 3 PSEUDOROTATION ANGLES (DEGREES) : NULL ; NULL ; NULL REMARK 3 TRIGONAL CARBON PLANES (A) : 0.014 ; 40.000; 57 REMARK 3 GENERAL PLANES (A) : 0.018 ; 100.00; 307 REMARK 3 ISOTROPIC THERMAL FACTORS (A**2) : 4.648 ; 30.000; 2120 REMARK 3 NON-BONDED CONTACTS (A) : 0.053 ; 250.00; 36 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 : TNT PROTGEO REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS : TNT BCORREL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4VHB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-MAR-99. REMARK 100 THE DEPOSITION ID IS D_1000000633. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-NOV-96 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.4 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ELETTRA REMARK 200 BEAMLINE : 5.2R REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 9310 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 3.100 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07000 REMARK 200 FOR THE DATA SET : 20.0000 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER REMARK 200 SOFTWARE USED: CCP4 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 53.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE 1.3M, 0.1 M REMARK 280 PYROPHOSPHATE, 3% ETHYLENE GLYCOLE, PH 6.4. THIOCYANATE SOAKING REMARK 280 CONDITION: 0.5M SCN FOR 30 MIN. 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 20.19000 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 APPLY THE FOLLOWING TO CHAINS: A, 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 ASP A 44 REMARK 465 MET A 45 REMARK 465 GLY A 46 REMARK 465 ARG A 47 REMARK 465 GLN A 48 REMARK 465 GLU A 49 REMARK 465 SER A 50 REMARK 465 LEU A 51 REMARK 465 MET B 1 REMARK 465 ASP B 44 REMARK 465 MET B 45 REMARK 465 GLY B 46 REMARK 465 ARG B 47 REMARK 465 GLN B 48 REMARK 465 GLU B 49 REMARK 465 SER B 50 REMARK 465 GLU B 146 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 MET A 1 CG SD CE 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 ND1 HIS B 36 O HOH B 265 2.19 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 ARG A 40 NE - CZ - NH1 ANGL. DEV. = -3.1 DEGREES REMARK 500 LEU A 57 CB - CG - CD1 ANGL. DEV. = 13.0 DEGREES REMARK 500 ASP A 139 CB - CG - OD2 ANGL. DEV. = 8.3 DEGREES REMARK 500 LEU B 110 CB - CG - CD1 ANGL. DEV. = -10.5 DEGREES REMARK 500 ASP B 139 CB - CG - OD2 ANGL. DEV. = 8.4 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 LYS A 55 -10.41 -144.09 REMARK 500 ALA A 114 65.95 -66.06 REMARK 500 LYS B 55 -12.65 -143.33 REMARK 500 ASN B 70 64.64 -152.15 REMARK 500 ALA B 114 52.19 -67.92 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 150 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 85 NE2 REMARK 620 2 HEM A 150 NA 97.0 REMARK 620 3 HEM A 150 NB 91.3 91.3 REMARK 620 4 HEM A 150 NC 87.9 175.0 88.4 REMARK 620 5 HEM A 150 ND 90.8 87.9 177.8 92.2 REMARK 620 6 SCN A 501 N 167.1 95.5 91.5 79.6 86.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 150 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 85 NE2 REMARK 620 2 HEM B 150 NA 96.4 REMARK 620 3 HEM B 150 NB 86.4 90.4 REMARK 620 4 HEM B 150 NC 87.9 175.3 87.9 REMARK 620 5 HEM B 150 ND 94.7 89.2 178.9 92.4 REMARK 620 6 SCN B 601 N 165.1 98.5 93.0 77.2 86.0 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 SCN A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SCN B 601 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 150 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 150 DBREF 4VHB A 1 146 UNP P04252 BAHG_VITST 1 146 DBREF 4VHB B 1 146 UNP P04252 BAHG_VITST 1 146 SEQRES 1 A 146 MET LEU ASP GLN GLN THR ILE ASN ILE ILE LYS ALA THR SEQRES 2 A 146 VAL PRO VAL LEU LYS GLU HIS GLY VAL THR ILE THR THR SEQRES 3 A 146 THR PHE TYR LYS ASN LEU PHE ALA LYS HIS PRO GLU VAL SEQRES 4 A 146 ARG PRO LEU PHE ASP MET GLY ARG GLN GLU SER LEU GLU SEQRES 5 A 146 GLN PRO LYS ALA LEU ALA MET THR VAL LEU ALA ALA ALA SEQRES 6 A 146 GLN ASN ILE GLU ASN LEU PRO ALA ILE LEU PRO ALA VAL SEQRES 7 A 146 LYS LYS ILE ALA VAL LYS HIS CYS GLN ALA GLY VAL ALA SEQRES 8 A 146 ALA ALA HIS TYR PRO ILE VAL GLY GLN GLU LEU LEU GLY SEQRES 9 A 146 ALA ILE LYS GLU VAL LEU GLY ASP ALA ALA THR ASP ASP SEQRES 10 A 146 ILE LEU ASP ALA TRP GLY LYS ALA TYR GLY VAL ILE ALA SEQRES 11 A 146 ASP VAL PHE ILE GLN VAL GLU ALA ASP LEU TYR ALA GLN SEQRES 12 A 146 ALA VAL GLU SEQRES 1 B 146 MET LEU ASP GLN GLN THR ILE ASN ILE ILE LYS ALA THR SEQRES 2 B 146 VAL PRO VAL LEU LYS GLU HIS GLY VAL THR ILE THR THR SEQRES 3 B 146 THR PHE TYR LYS ASN LEU PHE ALA LYS HIS PRO GLU VAL SEQRES 4 B 146 ARG PRO LEU PHE ASP MET GLY ARG GLN GLU SER LEU GLU SEQRES 5 B 146 GLN PRO LYS ALA LEU ALA MET THR VAL LEU ALA ALA ALA SEQRES 6 B 146 GLN ASN ILE GLU ASN LEU PRO ALA ILE LEU PRO ALA VAL SEQRES 7 B 146 LYS LYS ILE ALA VAL LYS HIS CYS GLN ALA GLY VAL ALA SEQRES 8 B 146 ALA ALA HIS TYR PRO ILE VAL GLY GLN GLU LEU LEU GLY SEQRES 9 B 146 ALA ILE LYS GLU VAL LEU GLY ASP ALA ALA THR ASP ASP SEQRES 10 B 146 ILE LEU ASP ALA TRP GLY LYS ALA TYR GLY VAL ILE ALA SEQRES 11 B 146 ASP VAL PHE ILE GLN VAL GLU ALA ASP LEU TYR ALA GLN SEQRES 12 B 146 ALA VAL GLU HET SCN A 501 3 HET HEM A 150 43 HET SCN B 601 3 HET HEM B 150 43 HETNAM SCN THIOCYANATE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 3 SCN 2(C N S 1-) FORMUL 4 HEM 2(C34 H32 FE N4 O4) FORMUL 7 HOH *225(H2 O) HELIX 1 1 GLN A 4 GLU A 19 1 16 HELIX 2 2 GLY A 21 LYS A 35 1 15 HELIX 3 3 PRO A 37 LEU A 42 5 6 HELIX 4 4 LEU A 57 ASN A 67 1 11 HELIX 5 5 LEU A 71 ALA A 88 5 18 HELIX 6 6 ALA A 92 ALA A 113 1 22 HELIX 7 7 ASP A 116 ALA A 144 1 29 HELIX 8 8 GLN B 4 LYS B 35 1 32 HELIX 9 9 PRO B 37 LEU B 42 5 6 HELIX 10 10 LEU B 57 GLN B 66 1 10 HELIX 11 11 LEU B 71 ALA B 88 5 18 HELIX 12 12 ALA B 92 ALA B 113 1 22 HELIX 13 13 ASP B 116 GLN B 143 1 28 LINK NE2 HIS A 85 FE HEM A 150 1555 1555 1.92 LINK FE HEM A 150 N SCN A 501 1555 1555 2.06 LINK NE2 HIS B 85 FE HEM B 150 1555 1555 1.98 LINK FE HEM B 150 N SCN B 601 1555 1555 2.08 SITE 1 AC1 3 PHE A 43 LEU A 57 HEM A 150 SITE 1 AC2 2 PHE B 43 HEM B 150 SITE 1 AC3 15 LEU A 42 PHE A 43 LEU A 57 THR A 60 SITE 2 AC3 15 ILE A 81 LYS A 84 HIS A 85 VAL A 90 SITE 3 AC3 15 HIS A 94 TYR A 95 VAL A 98 PHE A 133 SITE 4 AC3 15 HOH A 252 HOH A 370 SCN A 501 SITE 1 AC4 15 LEU B 42 PHE B 43 LEU B 57 THR B 60 SITE 2 AC4 15 ILE B 81 LYS B 84 HIS B 85 VAL B 90 SITE 3 AC4 15 HIS B 94 TYR B 95 VAL B 98 PHE B 133 SITE 4 AC4 15 HOH B 225 HOH B 234 SCN B 601 CRYST1 62.620 40.380 62.780 90.00 105.93 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 0.015969 0.000000 0.004558 0.00000 SCALE2 0.000000 0.024765 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016565 0.00000 MTRIX1 1 -1.000000 0.000000 0.000000 0.00000 1 MTRIX2 1 0.000000 1.000000 0.000000 20.09485 1 MTRIX3 1 0.000000 0.000000 -1.000000 0.00000 1