HEADER HEME BINDING PROTEIN 23-DEC-13 4O6Q TITLE 0.95A RESOLUTION STRUCTURE OF THE HEMOPHORE HASA FROM PSEUDOMONAS TITLE 2 AERUGINOSA (Y75A MUTANT) COMPND MOL_ID: 1; COMPND 2 MOLECULE: HASAP; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSEUDOMONAS AERUGINOSA; SOURCE 3 ORGANISM_TAXID: 287; SOURCE 4 GENE: HASAP; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21-GOLD (DE3); SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET11A KEYWDS HEMOPHORE, Y75 LOOP, HEME BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR S.LOVELL,R.KUMAR,K.P.BATTAILE,H.MATSUMURA,H.YAO,J.C.RODRIGUEZ, AUTHOR 2 P.MOENNE-LOCCOZ,M.RIVERA REVDAT 4 20-SEP-23 4O6Q 1 REMARK SEQADV REVDAT 3 22-NOV-17 4O6Q 1 REMARK REVDAT 2 23-APR-14 4O6Q 1 JRNL REVDAT 1 26-MAR-14 4O6Q 0 JRNL AUTH R.KUMAR,H.MATSUMURA,S.LOVELL,H.YAO,J.C.RODRIGUEZ, JRNL AUTH 2 K.P.BATTAILE,P.MOENNE-LOCCOZ,M.RIVERA JRNL TITL REPLACING THE AXIAL LIGAND TYROSINE 75 OR ITS HYDROGEN BOND JRNL TITL 2 PARTNER HISTIDINE 83 MINIMALLY AFFECTS HEMIN ACQUISITION BY JRNL TITL 3 THE HEMOPHORE HASAP FROM PSEUDOMONAS AERUGINOSA. JRNL REF BIOCHEMISTRY V. 53 2112 2014 JRNL REFN ISSN 0006-2960 JRNL PMID 24625274 JRNL DOI 10.1021/BI500030P REMARK 2 REMARK 2 RESOLUTION. 0.95 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.6.4_486 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 0.95 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 34.30 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 93.9 REMARK 3 NUMBER OF REFLECTIONS : 97223 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.136 REMARK 3 R VALUE (WORKING SET) : 0.135 REMARK 3 FREE R VALUE : 0.146 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 4861 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 34.3263 - 2.0466 1.00 10265 546 0.1476 0.1547 REMARK 3 2 2.0466 - 1.6244 1.00 9878 547 0.1231 0.1326 REMARK 3 3 1.6244 - 1.4191 0.99 9818 470 0.1075 0.1213 REMARK 3 4 1.4191 - 1.2893 0.99 9724 504 0.1069 0.1192 REMARK 3 5 1.2893 - 1.1969 0.98 9570 548 0.1136 0.1336 REMARK 3 6 1.1969 - 1.1263 0.96 9420 490 0.1209 0.1357 REMARK 3 7 1.1263 - 1.0699 0.94 9104 496 0.1351 0.1510 REMARK 3 8 1.0699 - 1.0234 0.90 8821 422 0.1631 0.1832 REMARK 3 9 1.0234 - 0.9840 0.84 8071 450 0.1963 0.2093 REMARK 3 10 0.9840 - 0.9500 0.79 7691 388 0.2327 0.2435 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.00 REMARK 3 SHRINKAGE RADIUS : 0.89 REMARK 3 K_SOL : 0.39 REMARK 3 B_SOL : 33.55 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.070 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 12.200 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 8.57 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 12.09 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.39280 REMARK 3 B22 (A**2) : 0.67420 REMARK 3 B33 (A**2) : -0.28140 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.012 1454 REMARK 3 ANGLE : 1.456 2020 REMARK 3 CHIRALITY : 0.091 219 REMARK 3 PLANARITY : 0.010 264 REMARK 3 DIHEDRAL : 12.588 492 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4O6Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-JAN-14. REMARK 100 THE DEPOSITION ID IS D_1000084111. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-JUN-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 17-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : 1.0000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XSCALE REMARK 200 DATA SCALING SOFTWARE : SCALA 3.3.16, XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 97317 REMARK 200 RESOLUTION RANGE HIGH (A) : 0.950 REMARK 200 RESOLUTION RANGE LOW (A) : 50.519 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.1 REMARK 200 DATA REDUNDANCY : 9.300 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05500 REMARK 200 FOR THE DATA SET : 18.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 0.95 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 80.0 REMARK 200 DATA REDUNDANCY IN SHELL : 5.60 REMARK 200 R MERGE FOR SHELL (I) : 0.60100 REMARK 200 R SYM FOR SHELL (I) : 0.60100 REMARK 200 FOR SHELL : 1.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 3ELL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.08 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.16 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.6M AMMONIUM SULFATE, 100MM HEPES, REMARK 280 200MM NACL, PH 7.5, VAPOR DIFFUSION, TEMPERATURE 293K 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 17.21850 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 50.51850 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 23.36450 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 50.51850 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 17.21850 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 23.36450 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 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 ALA A 184 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 59 CD CE NZ 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 OD1 ASP A 64 O HOH A 352 1.98 REMARK 500 O HOH A 551 O HOH A 607 2.04 REMARK 500 O HOH A 364 O HOH A 612 2.13 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 478 O HOH A 518 4455 2.09 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 LEU A 77 -112.88 54.43 REMARK 500 LEU A 77 -115.89 58.26 REMARK 500 THR A 97 67.07 68.25 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 202 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 32 NE2 REMARK 620 2 HEM A 202 NA 90.7 REMARK 620 3 HEM A 202 NB 91.4 90.7 REMARK 620 4 HEM A 202 NC 89.6 179.5 89.6 REMARK 620 5 HEM A 202 ND 89.7 89.1 178.9 90.6 REMARK 620 6 FMT A 201 O2 178.1 90.3 90.2 89.4 88.7 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 FMT A 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 202 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4O6S RELATED DB: PDB REMARK 900 RELATED ID: 4O6T RELATED DB: PDB REMARK 900 RELATED ID: 4O6U RELATED DB: PDB DBREF 4O6Q A 1 184 UNP O69756 O69756_PSEAI 1 184 SEQADV 4O6Q ALA A 75 UNP O69756 TYR 75 ENGINEERED MUTATION SEQRES 1 A 184 MET SER ILE SER ILE SER TYR SER THR THR TYR SER GLY SEQRES 2 A 184 TRP THR VAL ALA ASP TYR LEU ALA ASP TRP SER ALA TYR SEQRES 3 A 184 PHE GLY ASP VAL ASN HIS ARG PRO GLY GLN VAL VAL ASP SEQRES 4 A 184 GLY SER ASN THR GLY GLY PHE ASN PRO GLY PRO PHE ASP SEQRES 5 A 184 GLY SER GLN TYR ALA LEU LYS SER THR ALA SER ASP ALA SEQRES 6 A 184 ALA PHE ILE ALA GLY GLY ASP LEU HIS ALA THR LEU PHE SEQRES 7 A 184 SER ASN PRO SER HIS THR LEU TRP GLY LYS LEU ASP SER SEQRES 8 A 184 ILE ALA LEU GLY ASP THR LEU THR GLY GLY ALA SER SER SEQRES 9 A 184 GLY GLY TYR ALA LEU ASP SER GLN GLU VAL SER PHE SER SEQRES 10 A 184 ASN LEU GLY LEU ASP SER PRO ILE ALA GLN GLY ARG ASP SEQRES 11 A 184 GLY THR VAL HIS LYS VAL VAL TYR GLY LEU MET SER GLY SEQRES 12 A 184 ASP SER SER ALA LEU GLN GLY GLN ILE ASP ALA LEU LEU SEQRES 13 A 184 LYS ALA VAL ASP PRO SER LEU SER ILE ASN SER THR PHE SEQRES 14 A 184 ASP GLN LEU ALA ALA ALA GLY VAL ALA HIS ALA THR PRO SEQRES 15 A 184 ALA ALA HET FMT A 201 3 HET HEM A 202 43 HETNAM FMT FORMIC ACID HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 FMT C H2 O2 FORMUL 3 HEM C34 H32 FE N4 O4 FORMUL 4 HOH *322(H2 O) HELIX 1 1 THR A 10 SER A 12 5 3 HELIX 2 2 THR A 15 GLY A 28 1 14 HELIX 3 3 ALA A 102 GLY A 105 5 4 HELIX 4 4 PRO A 124 ASP A 130 5 7 HELIX 5 5 GLY A 131 SER A 142 1 12 HELIX 6 6 SER A 145 ASP A 160 1 16 HELIX 7 7 THR A 168 ALA A 175 1 8 SHEET 1 A 5 GLY A 45 PRO A 48 0 SHEET 2 A 5 ASP A 52 LYS A 59 -1 O ALA A 57 N GLY A 45 SHEET 3 A 5 ALA A 65 ALA A 75 -1 O ALA A 69 N TYR A 56 SHEET 4 A 5 LEU A 85 GLY A 101 -1 O LYS A 88 N ASP A 72 SHEET 5 A 5 LEU A 121 SER A 123 -1 O SER A 123 N GLY A 87 SHEET 1 B 7 GLY A 45 PRO A 48 0 SHEET 2 B 7 ASP A 52 LYS A 59 -1 O ALA A 57 N GLY A 45 SHEET 3 B 7 ALA A 65 ALA A 75 -1 O ALA A 69 N TYR A 56 SHEET 4 B 7 LEU A 85 GLY A 101 -1 O LYS A 88 N ASP A 72 SHEET 5 B 7 GLY A 106 SER A 117 -1 O VAL A 114 N LEU A 94 SHEET 6 B 7 SER A 4 SER A 8 -1 N SER A 4 O SER A 117 SHEET 7 B 7 ALA A 178 THR A 181 1 O HIS A 179 N ILE A 5 LINK NE2 HIS A 32 FE HEM A 202 1555 1555 1.98 LINK O2 FMT A 201 FE HEM A 202 1555 1555 2.03 CISPEP 1 ASN A 47 PRO A 48 0 2.63 CISPEP 2 GLY A 49 PRO A 50 0 6.03 CISPEP 3 ASN A 80 PRO A 81 0 -6.34 CISPEP 4 ASN A 80 PRO A 81 0 -6.05 SITE 1 AC1 4 ALA A 75 LEU A 77 HIS A 83 HEM A 202 SITE 1 AC2 21 HIS A 32 PRO A 34 GLY A 35 THR A 43 SITE 2 AC2 21 LEU A 77 HIS A 83 LEU A 85 SER A 104 SITE 3 AC2 21 GLY A 105 ARG A 129 TYR A 138 MET A 141 SITE 4 AC2 21 HIS A 179 FMT A 201 HOH A 321 HOH A 356 SITE 5 AC2 21 HOH A 394 HOH A 411 HOH A 436 HOH A 459 SITE 6 AC2 21 HOH A 469 CRYST1 34.437 46.729 101.037 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 0.029039 0.000000 0.000000 0.00000 SCALE2 0.000000 0.021400 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009897 0.00000