HEADER OXYGEN STORAGE/TRANSPORT 25-NOV-02 1N9I TITLE STRUCTURE OF EARTH-GROWN OXIDIZED MYOGLOBIN MUTANT YQR (ISS8A) COMPND MOL_ID: 1; COMPND 2 MOLECULE: MYOGLOBIN; 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: MYOGLOBIN; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: TB-1; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PUC19 MODIFIED KEYWDS GLOBIN FOLD, OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR A.E.MIELE,G.SCIARA,L.FEDERICI,B.VALLONE,M.BRUNORI REVDAT 4 16-AUG-23 1N9I 1 REMARK REVDAT 3 27-OCT-21 1N9I 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 1N9I 1 VERSN REVDAT 1 10-JUN-03 1N9I 0 JRNL AUTH A.E.MIELE,L.FEDERICI,G.SCIARA,F.DRAGHI,M.BRUNORI,B.VALLONE JRNL TITL ANALYSIS OF THE EFFECT OF MICROGRAVITY ON PROTEIN CRYSTAL JRNL TITL 2 QUALITY: THE CASE OF A MYOGLOBIN TRIPLE MUTANT. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 59 982 2003 JRNL REFN ISSN 0907-4449 JRNL PMID 12777759 JRNL DOI 10.1107/S0907444903005924 REMARK 2 REMARK 2 RESOLUTION. 1.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 27908 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 + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.188 REMARK 3 FREE R VALUE : 0.201 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1395 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1232 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 49 REMARK 3 SOLVENT ATOMS : 154 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.58 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 11.69 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.006 ; NULL REMARK 3 ANGLE DISTANCE (A) : 0.879 ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1N9I COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-NOV-02. REMARK 100 THE DEPOSITION ID IS D_1000017686. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-JUL-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.7 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) : 1.001 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 29394 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 4.630 REMARK 200 R MERGE (I) : 0.03300 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 29.3000 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1F65 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.68 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.05 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, TRIS, EDTA, PH 8.7, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 6 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 -X,-Y,Z REMARK 290 5555 Y,-X+Y,Z REMARK 290 6555 X-Y,X,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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 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: THE PROTEIN IS A MONOMER 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 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 ARG A 45 NE CZ NH1 NH2 REMARK 480 LYS A 47 NZ REMARK 480 LYS A 62 CE NZ REMARK 480 ARG A 67 CZ NH1 NH2 REMARK 480 LYS A 96 CE NZ REMARK 480 LYS A 98 CD CE NZ REMARK 480 LYS A 102 CD CE NZ REMARK 480 LYS A 147 CG CD CE NZ REMARK 480 GLN A 152 CD OE1 NE2 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 ARG A 45 CD ARG A 45 NE 0.417 REMARK 500 GLN A 152 CG GLN A 152 CD 0.749 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 45 CD - NE - CZ ANGL. DEV. = 17.6 DEGREES REMARK 500 ARG A 118 CD - NE - CZ ANGL. DEV. = 10.7 DEGREES REMARK 500 ARG A 118 NE - CZ - NH1 ANGL. DEV. = -4.9 DEGREES REMARK 500 ARG A 118 NE - CZ - NH2 ANGL. DEV. = 5.9 DEGREES REMARK 500 GLN A 152 CB - CG - CD ANGL. DEV. = -20.4 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 ASP A 20 73.91 -159.81 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A 45 0.12 SIDE CHAIN 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 200 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 93 NE2 REMARK 620 2 HEM A 200 NA 91.1 REMARK 620 3 HEM A 200 NB 90.4 89.7 REMARK 620 4 HEM A 200 NC 92.8 176.0 89.8 REMARK 620 5 HEM A 200 ND 93.0 89.9 176.6 90.4 REMARK 620 6 OH A 500 O 178.0 90.7 90.3 85.3 86.3 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 SO4 A 413 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OH A 500 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 200 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1N9F RELATED DB: PDB REMARK 900 STRUCTURE OF EARTH-GROWN OXIDIZED MYOGLOBIN MUTANT YQR (ISS6A) TO REMARK 900 1.8 ANGSTROM REMARK 900 RELATED ID: 1N9H RELATED DB: PDB REMARK 900 STRUCTURE OF MICROGRAVITY-GROWN OXIDIZED MYOGLOBIN MUTANT YQR REMARK 900 (ISS6A) TO 1.8 ANGSTROM REMARK 900 RELATED ID: 1N9X RELATED DB: PDB REMARK 900 STRUCTURE OF MICROGRAVITY-GROWN OXIDIZED MYOGLOBIN MUTANT YQR REMARK 900 (ISS8A) TO 1.6 ANGSTROM REMARK 900 RELATED ID: 1NAZ RELATED DB: PDB REMARK 900 STRUCTURE OF MICROGRAVITY-GROWN OXIDIZED MYOGLOBIN MUTANT YQR REMARK 900 (ISS8A) TO 1.04 ANGSTROM DBREF 1N9I A 0 153 UNP P02185 MYG_PHYCA 1 154 SEQADV 1N9I TYR A 29 UNP P02185 LEU 30 ENGINEERED MUTATION SEQADV 1N9I GLN A 64 UNP P02185 HIS 65 ENGINEERED MUTATION SEQADV 1N9I ARG A 67 UNP P02185 THR 68 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 TYR 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 GLN SEQRES 6 A 154 GLY VAL ARG 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 HIS 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 ASN 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 SO4 A 413 5 HET OH A 500 1 HET HEM A 200 43 HETNAM SO4 SULFATE ION HETNAM OH HYDROXIDE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 SO4 O4 S 2- FORMUL 3 OH H O 1- FORMUL 4 HEM C34 H32 FE N4 O4 FORMUL 5 HOH *154(H2 O) HELIX 1 1 SER A 3 GLU A 18 1 16 HELIX 2 2 ASP A 20 HIS A 36 1 17 HELIX 3 3 PRO A 37 PHE A 43 5 7 HELIX 4 4 THR A 51 SER A 58 1 8 HELIX 5 5 SER A 58 LYS A 78 1 21 HELIX 6 6 HIS A 82 LYS A 96 1 15 HELIX 7 7 PRO A 100 HIS A 119 1 20 HELIX 8 8 GLY A 124 GLY A 150 1 27 LINK NE2 HIS A 93 FE HEM A 200 1555 1555 2.11 LINK FE HEM A 200 O OH A 500 1555 1555 2.19 SITE 1 AC1 9 SER A 3 GLU A 4 LYS A 34 THR A 51 SITE 2 AC1 9 GLU A 52 ALA A 53 HOH A 606 HOH A 613 SITE 3 AC1 9 HOH A 634 SITE 1 AC2 4 TYR A 29 GLN A 64 VAL A 68 HEM A 200 SITE 1 AC3 18 LYS A 42 PHE A 43 ARG A 45 GLN A 64 SITE 2 AC3 18 ARG A 67 VAL A 68 ALA A 71 LEU A 89 SITE 3 AC3 18 SER A 92 HIS A 93 HIS A 97 ILE A 99 SITE 4 AC3 18 TYR A 103 LEU A 104 OH A 500 HOH A 524 SITE 5 AC3 18 HOH A 539 HOH A 572 CRYST1 90.330 90.330 45.240 90.00 90.00 120.00 P 6 6 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 0.011071 0.006392 0.000000 0.00000 SCALE2 0.000000 0.012783 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022104 0.00000