HEADER OXYGEN STORAGE/TRANSPORT 05-APR-01 1IDR TITLE CRYSTAL STRUCTURE OF THE TRUNCATED-HEMOGLOBIN-N FROM TITLE 2 MYCOBACTERIUM TUBERCULOSIS COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN HBN; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM TUBERCULOSIS; SOURCE 3 ORGANISM_TAXID: 1773; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS TRUNCATED HEMOGLOBIN FOLD, OXYGEN STORAGE/TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR M.MILANI,A.PESCE,P.ASCENZI,M.GUERTIN,M.BOLOGNESI REVDAT 2 24-FEB-09 1IDR 1 VERSN REVDAT 1 22-AUG-01 1IDR 0 JRNL AUTH M.MILANI,A.PESCE,Y.OUELLET,P.ASCENZI,M.GUERTIN, JRNL AUTH 2 M.BOLOGNESI JRNL TITL MYCOBACTERIUM TUBERCULOSIS HEMOGLOBIN N DISPLAYS A JRNL TITL 2 PROTEIN TUNNEL SUITED FOR O2 DIFFUSION TO THE HEME. JRNL REF EMBO J. V. 20 3902 2001 JRNL REFN ISSN 0261-4189 JRNL PMID 11483493 JRNL DOI 10.1093/EMBOJ/20.15.3902 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 50.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.1 REMARK 3 NUMBER OF REFLECTIONS : 18688 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) : 0.192 REMARK 3 R VALUE (WORKING SET) : 0.189 REMARK 3 FREE R VALUE : 0.250 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT : 1020 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1910 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 105 REMARK 3 SOLVENT ATOMS : 228 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 32.73 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.35000 REMARK 3 B22 (A**2) : 0.72000 REMARK 3 B33 (A**2) : -1.07000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.176 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.169 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.129 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.432 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.012 ; 0.021 REMARK 3 ANGLE DISTANCE (A) : NULL ; 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) : 7.962 ; 1.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 8.767 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 13.994; 3.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 13.303; 3.000 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1IDR COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-APR-01. REMARK 100 THE RCSB ID CODE IS RCSB013186. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-APR-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.3 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID14-3 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.931 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL 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 : 18688 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 40.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.0 REMARK 200 DATA REDUNDANCY : 10.200 REMARK 200 R MERGE (I) : 0.05300 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 18.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.93 REMARK 200 COMPLETENESS FOR SHELL (%) : 88.9 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.33100 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: POTASSIUM PHOSPHATE, PH 8.3, REMARK 280 MICRODIALYSIS, 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 22.40000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 45.51000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.12400 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 45.51000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 22.40000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.12400 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 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT REMARK 300 WHICH CONSISTS OF 2 CHAIN(S). SEE REMARK 350 FOR REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). REMARK 300 GEL-FILTRATION EXPERIMENT INDICATES THAT THE PROTEIN REMARK 300 IS LOOSELY DIMERIC. 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 MET A 1 REMARK 465 GLY A 129 REMARK 465 GLU A 130 REMARK 465 SER A 131 REMARK 465 THR A 132 REMARK 465 THR A 133 REMARK 465 ALA A 134 REMARK 465 PRO A 135 REMARK 465 VAL A 136 REMARK 465 MET B 1 REMARK 465 SER B 128 REMARK 465 GLY B 129 REMARK 465 GLU B 130 REMARK 465 SER B 131 REMARK 465 THR B 132 REMARK 465 THR B 133 REMARK 465 ALA B 134 REMARK 465 PRO B 135 REMARK 465 VAL B 136 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 SER A 128 O REMARK 470 THR B 127 O 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 6 CG CD NE CZ NH1 REMARK 480 GLU A 11 CD OE1 OE2 REMARK 480 GLU A 23 CD OE1 OE2 REMARK 480 ASP A 40 OD1 OD2 REMARK 480 GLU A 70 CB CG CD OE1 OE2 REMARK 480 LYS A 78 CE NZ REMARK 480 GLN A 79 CD OE1 NE2 REMARK 480 GLN A 82 CG CD OE1 NE2 REMARK 480 GLU A 110 CG CD OE1 OE2 REMARK 480 HIS B 22 ND1 CD2 CE1 NE2 REMARK 480 THR B 49 CG2 REMARK 480 GLU B 70 CD OE1 OE2 REMARK 480 GLU B 110 CG CD OE1 OE2 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 B 310 O HOH B 324 2.14 REMARK 500 O HOH A 386 O HOH B 372 2.16 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 419 O HOH B 335 1545 1.98 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 B 100 CB - CG - OD2 ANGL. DEV. = 5.8 DEGREES 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 144 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 81 NE2 REMARK 620 2 OXY A 145 O1 177.8 REMARK 620 3 OXY A 145 O2 159.8 19.6 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 144 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 81 NE2 REMARK 620 2 OXY B 145 O1 172.3 REMARK 620 3 OXY B 145 O2 160.7 23.1 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 301 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 302 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 B 303 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 144 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 144 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY A 145 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OXY B 145 DBREF 1IDR A 1 136 UNP P0A592 GLBN_MYCTU 1 136 DBREF 1IDR B 1 136 UNP P0A592 GLBN_MYCTU 1 136 SEQRES 1 A 136 MET GLY LEU LEU SER ARG LEU ARG LYS ARG GLU PRO ILE SEQRES 2 A 136 SER ILE TYR ASP LYS ILE GLY GLY HIS GLU ALA ILE GLU SEQRES 3 A 136 VAL VAL VAL GLU ASP PHE TYR VAL ARG VAL LEU ALA ASP SEQRES 4 A 136 ASP GLN LEU SER ALA PHE PHE SER GLY THR ASN MET SER SEQRES 5 A 136 ARG LEU LYS GLY LYS GLN VAL GLU PHE PHE ALA ALA ALA SEQRES 6 A 136 LEU GLY GLY PRO GLU PRO TYR THR GLY ALA PRO MET LYS SEQRES 7 A 136 GLN VAL HIS GLN GLY ARG GLY ILE THR MET HIS HIS PHE SEQRES 8 A 136 SER LEU VAL ALA GLY HIS LEU ALA ASP ALA LEU THR ALA SEQRES 9 A 136 ALA GLY VAL PRO SER GLU THR ILE THR GLU ILE LEU GLY SEQRES 10 A 136 VAL ILE ALA PRO LEU ALA VAL ASP VAL THR SER GLY GLU SEQRES 11 A 136 SER THR THR ALA PRO VAL SEQRES 1 B 136 MET GLY LEU LEU SER ARG LEU ARG LYS ARG GLU PRO ILE SEQRES 2 B 136 SER ILE TYR ASP LYS ILE GLY GLY HIS GLU ALA ILE GLU SEQRES 3 B 136 VAL VAL VAL GLU ASP PHE TYR VAL ARG VAL LEU ALA ASP SEQRES 4 B 136 ASP GLN LEU SER ALA PHE PHE SER GLY THR ASN MET SER SEQRES 5 B 136 ARG LEU LYS GLY LYS GLN VAL GLU PHE PHE ALA ALA ALA SEQRES 6 B 136 LEU GLY GLY PRO GLU PRO TYR THR GLY ALA PRO MET LYS SEQRES 7 B 136 GLN VAL HIS GLN GLY ARG GLY ILE THR MET HIS HIS PHE SEQRES 8 B 136 SER LEU VAL ALA GLY HIS LEU ALA ASP ALA LEU THR ALA SEQRES 9 B 136 ALA GLY VAL PRO SER GLU THR ILE THR GLU ILE LEU GLY SEQRES 10 B 136 VAL ILE ALA PRO LEU ALA VAL ASP VAL THR SER GLY GLU SEQRES 11 B 136 SER THR THR ALA PRO VAL HET PO4 A 301 5 HET PO4 A 302 5 HET PO4 B 303 5 HET HEM A 144 43 HET HEM B 144 43 HET OXY A 145 2 HET OXY B 145 2 HETNAM PO4 PHOSPHATE ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM OXY OXYGEN MOLECULE HETSYN HEM HEME FORMUL 3 PO4 3(O4 P 3-) FORMUL 6 HEM 2(C34 H32 FE N4 O4) FORMUL 8 OXY 2(O2) FORMUL 10 HOH *228(H2 O) HELIX 1 1 GLY A 2 LYS A 9 1 8 HELIX 2 2 SER A 14 ILE A 19 1 6 HELIX 3 3 GLY A 20 ASP A 39 1 20 HELIX 4 4 LEU A 42 SER A 47 5 6 HELIX 5 5 ASN A 50 LEU A 66 1 17 HELIX 6 6 PRO A 76 GLN A 82 1 7 HELIX 7 7 THR A 87 ALA A 105 1 19 HELIX 8 8 PRO A 108 ALA A 120 1 13 HELIX 9 9 LEU A 122 THR A 127 1 6 HELIX 10 10 GLY B 2 LYS B 9 1 8 HELIX 11 11 SER B 14 ILE B 19 1 6 HELIX 12 12 GLY B 20 ALA B 38 1 19 HELIX 13 13 LEU B 42 SER B 47 5 6 HELIX 14 14 ASN B 50 LEU B 66 1 17 HELIX 15 15 PRO B 76 GLN B 82 1 7 HELIX 16 16 THR B 87 ALA B 105 1 19 HELIX 17 17 PRO B 108 ALA B 120 1 13 HELIX 18 18 LEU B 122 THR B 127 1 6 LINK FE HEM A 144 NE2 HIS A 81 1555 1555 2.10 LINK FE HEM A 144 O1 OXY A 145 1555 1555 2.20 LINK FE HEM B 144 NE2 HIS B 81 1555 1555 2.11 LINK FE HEM B 144 O1 OXY B 145 1555 1555 2.06 LINK FE HEM A 144 O2 OXY A 145 1555 1555 3.02 LINK FE HEM B 144 O2 OXY B 145 1555 1555 2.78 SITE 1 AC1 2 ARG A 53 LYS A 57 SITE 1 AC2 2 PRO A 108 SER A 109 SITE 1 AC3 3 GLN B 82 GLY B 83 HOH B 382 SITE 1 AC4 20 PHE A 45 PHE A 46 THR A 49 ARG A 53 SITE 2 AC4 20 LEU A 54 GLN A 58 PHE A 61 TYR A 72 SITE 3 AC4 20 GLY A 74 ALA A 75 MET A 77 VAL A 80 SITE 4 AC4 20 HIS A 81 ARG A 84 ILE A 86 PHE A 91 SITE 5 AC4 20 VAL A 94 OXY A 145 HOH A 382 HOH A 397 SITE 1 AC5 20 LEU B 42 PHE B 45 PHE B 46 ARG B 53 SITE 2 AC5 20 LEU B 54 GLN B 58 PHE B 61 TYR B 72 SITE 3 AC5 20 GLY B 74 ALA B 75 MET B 77 VAL B 80 SITE 4 AC5 20 HIS B 81 ILE B 86 HIS B 90 PHE B 91 SITE 5 AC5 20 VAL B 94 ILE B 119 OXY B 145 HOH B 355 SITE 1 AC6 2 TYR A 33 HEM A 144 SITE 1 AC7 2 TYR B 33 HEM B 144 CRYST1 44.800 62.248 91.020 90.00 90.00 90.00 P 21 21 21 8 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 0.022321 0.000000 0.000000 0.00000 SCALE2 0.000000 0.016065 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010987 0.00000 MASTER 335 0 7 18 0 0 15 6 0 0 0 22 END