HEADER OXYGEN STORAGE/TRANSPORT 28-MAR-02 1LA6 TITLE THE CRYSTAL STRUCTURE OF TREMATOMUS NEWNESI HEMOGLOBIN IN A PARTIAL TITLE 2 HEMICHROME STATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: HEMOGLOBIN ALPHA-1 CHAIN; COMPND 3 CHAIN: A; COMPND 4 MOL_ID: 2; COMPND 5 MOLECULE: HEMOGLOBIN BETA-1/2 CHAIN; COMPND 6 CHAIN: B SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TREMATOMUS NEWNESI; SOURCE 3 ORGANISM_COMMON: DUSKY NOTOTHEN; SOURCE 4 ORGANISM_TAXID: 35730; SOURCE 5 MOL_ID: 2; SOURCE 6 ORGANISM_SCIENTIFIC: TREMATOMUS NEWNESI; SOURCE 7 ORGANISM_COMMON: DUSKY NOTOTHEN; SOURCE 8 ORGANISM_TAXID: 35730 KEYWDS HEMICHROME, BISHISTIDINE COMPLEX, OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR A.RICCIO,L.VITAGLIANO,G.DI PRISCO,A.ZAGARI,L.MAZZARELLA REVDAT 4 20-NOV-24 1LA6 1 REMARK REVDAT 3 16-AUG-23 1LA6 1 REMARK LINK REVDAT 2 24-FEB-09 1LA6 1 VERSN REVDAT 1 31-JUL-02 1LA6 0 JRNL AUTH A.RICCIO,L.VITAGLIANO,G.DI PRISCO,A.ZAGARI,L.MAZZARELLA JRNL TITL THE CRYSTAL STRUCTURE OF A TETRAMERIC HEMOGLOBIN IN A JRNL TITL 2 PARTIAL HEMICHROME STATE JRNL REF PROC.NATL.ACAD.SCI.USA V. 99 9801 2002 JRNL REFN ISSN 0027-8424 JRNL PMID 12093902 JRNL DOI 10.1073/PNAS.132182099 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.RICCIO,L.VITAGLIANO,G.DI PRISCO,A.ZAGARI,L.MAZZARELLA REMARK 1 TITL LIGANDED AND UNLIGANDED FORMS OF ANTARCTIC FISH HAEMOGLOBINS REMARK 1 TITL 2 IN POLYETHYLENE GLYCOL: CRYSTALLIZATION OF AN R-STATE REMARK 1 TITL 3 HAEMICHROME INTERMEDIATE REMARK 1 REF ACTA CRYSTALLOGR. V. 57 1144 2001 REMARK 1 REFN ISSN 0365-110X REMARK 1 DOI 10.1107/S0907444901007739 REMARK 1 REFERENCE 2 REMARK 1 AUTH L.MAZZARELLA,R.D'AVINO,G.DI PRISCO,C.SAVINO,L.VITAGLIANO, REMARK 1 AUTH 2 P.C.E.MOODY,A.ZAGARI REMARK 1 TITL CRYSTAL STRUCTURE OF TREMATOMUS NEWNESI HAEMOGLOBIN RE-OPENS REMARK 1 TITL 2 THE ROOT EFFECT QUESTION REMARK 1 REF J.MOL.BIOL. V. 287 897 1999 REMARK 1 REFN ISSN 0022-2836 REMARK 1 DOI 10.1006/JMBI.1999.2632 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 12.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 23191 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 SET) : 0.179 REMARK 3 FREE R VALUE : 0.212 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 2280 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2136 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 88 REMARK 3 SOLVENT ATOMS : 69 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.450 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 19.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.440 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC 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 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1LA6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 01-APR-02. REMARK 100 THE DEPOSITION ID IS D_1000015788. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-MAR-00 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 7.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : ENRAF-NONIUS FR571 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MACSCIENCE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27020 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 12.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 92.8 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.07700 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.15 REMARK 200 COMPLETENESS FOR SHELL (%) : 87.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.35000 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: X-PLOR REMARK 200 STARTING MODEL: PDB ENTRY 1T1N REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 63.68 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.39 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: MPEG 5000, SODIUM ACETATE, PH 7.6, REMARK 280 FREE INTERFACE DIFFUSION, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 44.92650 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 44.09500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 44.92650 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 44.09500 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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A TETRAMER GENERATED FROM THE REMARK 300 DIMER IN THE ASYMMETRIC UNIT BY THE OPERATION: -X, Y, -Z 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: TETRAMERIC 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 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 SER B 43 REMARK 465 GLY B 44 REMARK 465 PHE B 45 REMARK 465 GLY B 46 REMARK 465 ASN B 47 REMARK 465 LEU B 48 REMARK 465 TYR B 49 REMARK 465 ASN B 50 REMARK 465 ALA B 51 REMARK 465 GLU B 52 REMARK 465 GLY B 53 REMARK 465 GLN B 144 REMARK 465 TYR B 145 REMARK 465 HIS B 146 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 76 86.64 -157.29 REMARK 500 SER B 93 -75.22 -77.21 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 143 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 88 NE2 REMARK 620 2 HEM A 143 NA 89.2 REMARK 620 3 HEM A 143 NB 87.9 89.8 REMARK 620 4 HEM A 143 NC 93.0 177.1 88.4 REMARK 620 5 HEM A 143 ND 93.5 91.0 178.4 90.8 REMARK 620 6 CMO A 144 C 168.9 101.3 88.4 76.5 90.1 REMARK 620 7 CMO A 144 O 164.4 106.4 90.7 71.4 87.8 5.6 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 147 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 63 NE2 REMARK 620 2 HEM B 147 NA 88.9 REMARK 620 3 HEM B 147 NB 104.5 86.9 REMARK 620 4 HEM B 147 NC 95.0 173.9 87.6 REMARK 620 5 HEM B 147 ND 82.6 93.9 172.9 91.3 REMARK 620 6 HIS B 92 NE2 165.1 82.3 87.1 94.9 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 HEM A 143 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CMO A 144 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 147 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1T1N RELATED DB: PDB REMARK 900 PDB-ID 1T1N CONTAINS THE SAME PROTEIN FULLY COMPLEXED WITH CO DBREF 1LA6 A 1 142 UNP P45718 HBA1_TRENE 1 142 DBREF 1LA6 B 1 146 UNP P45720 HBB_TRENE 1 146 SEQRES 1 A 143 ACE SER LEU SER ASP LYS ASP LYS ALA ALA VAL ARG ALA SEQRES 2 A 143 LEU TRP SER LYS ILE GLY LYS SER SER ASP ALA ILE GLY SEQRES 3 A 143 ASN ASP ALA LEU SER ARG MET ILE VAL VAL TYR PRO GLN SEQRES 4 A 143 THR LYS ILE TYR PHE SER HIS TRP PRO ASP VAL THR PRO SEQRES 5 A 143 GLY SER PRO ASN ILE LYS ALA HIS GLY LYS LYS VAL MET SEQRES 6 A 143 GLY GLY ILE ALA LEU ALA VAL SER LYS ILE ASP ASP LEU SEQRES 7 A 143 LYS THR GLY LEU MET GLU LEU SER GLU GLN HIS ALA TYR SEQRES 8 A 143 LYS LEU ARG VAL ASP PRO SER ASN PHE LYS ILE LEU ASN SEQRES 9 A 143 HIS CYS ILE LEU VAL VAL ILE SER THR MET PHE PRO LYS SEQRES 10 A 143 GLU PHE THR PRO GLU ALA HIS VAL SER LEU ASP LYS PHE SEQRES 11 A 143 LEU SER GLY VAL ALA LEU ALA LEU ALA GLU ARG TYR ARG SEQRES 1 B 146 VAL GLU TRP THR ASP LYS GLU ARG SER ILE ILE SER ASP SEQRES 2 B 146 ILE PHE SER HIS MET ASP TYR ASP ASP ILE GLY PRO LYS SEQRES 3 B 146 ALA LEU SER ARG CYS LEU VAL VAL TYR PRO TRP THR GLN SEQRES 4 B 146 ARG TYR PHE SER GLY PHE GLY ASN LEU TYR ASN ALA GLU SEQRES 5 B 146 GLY ILE MET SER ASN ALA ASN VAL ALA ALA HIS GLY ILE SEQRES 6 B 146 LYS VAL LEU HIS GLY LEU ASP ARG GLY MET LYS ASN MET SEQRES 7 B 146 ASP ASN ILE ALA ASP ALA TYR THR ASP LEU SER THR LEU SEQRES 8 B 146 HIS SER GLU LYS LEU HIS VAL ASP PRO ASP ASN PHE LYS SEQRES 9 B 146 LEU LEU SER ASP CYS ILE THR ILE VAL LEU ALA ALA LYS SEQRES 10 B 146 MET GLY HIS ALA PHE THR ALA GLU THR GLN GLY ALA PHE SEQRES 11 B 146 GLN LYS PHE LEU ALA ALA VAL VAL SER ALA LEU GLY LYS SEQRES 12 B 146 GLN TYR HIS HET ACE A 0 3 HET HEM A 143 43 HET CMO A 144 2 HET HEM B 147 43 HETNAM ACE ACETYL GROUP HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM CMO CARBON MONOXIDE HETSYN HEM HEME FORMUL 1 ACE C2 H4 O FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 CMO C O FORMUL 6 HOH *69(H2 O) HELIX 1 1 SER A 3 GLY A 18 1 16 HELIX 2 2 SER A 20 TYR A 36 1 17 HELIX 3 3 PRO A 37 SER A 44 5 8 HELIX 4 4 SER A 53 LYS A 73 1 21 HELIX 5 5 ASP A 76 LEU A 81 1 6 HELIX 6 6 LEU A 81 TYR A 90 1 10 HELIX 7 7 ASP A 95 SER A 97 5 3 HELIX 8 8 ASN A 98 PHE A 114 1 17 HELIX 9 9 THR A 119 GLU A 139 1 21 HELIX 10 10 ARG A 140 ARG A 142 5 3 HELIX 11 11 THR B 4 HIS B 17 1 14 HELIX 12 12 ASP B 19 TYR B 35 1 17 HELIX 13 13 PRO B 36 PHE B 42 5 7 HELIX 14 14 ASN B 57 ASN B 77 1 21 HELIX 15 15 ASN B 80 TYR B 85 1 6 HELIX 16 16 TYR B 85 LYS B 95 1 11 HELIX 17 17 PRO B 100 GLY B 119 1 20 HELIX 18 18 HIS B 120 PHE B 122 5 3 HELIX 19 19 THR B 123 LYS B 143 1 21 LINK C ACE A 0 N SER A 1 1555 1555 1.33 LINK NE2 HIS A 88 FE HEM A 143 1555 1555 2.06 LINK FE HEM A 143 C CMO A 144 1555 1555 1.87 LINK FE HEM A 143 O CMO A 144 1555 1555 2.98 LINK NE2 HIS B 63 FE HEM B 147 1555 1555 2.00 LINK NE2 HIS B 92 FE HEM B 147 1555 1555 2.00 SITE 1 AC1 13 TYR A 42 HIS A 45 HIS A 59 LYS A 62 SITE 2 AC1 13 GLN A 87 HIS A 88 LEU A 92 VAL A 94 SITE 3 AC1 13 ASN A 98 PHE A 99 LEU A 102 ASN A 103 SITE 4 AC1 13 CMO A 144 SITE 1 AC2 3 HIS A 59 VAL A 63 HEM A 143 SITE 1 AC3 11 TYR B 41 PHE B 42 HIS B 63 LYS B 66 SITE 2 AC3 11 LEU B 91 HIS B 92 LEU B 96 ASN B 102 SITE 3 AC3 11 PHE B 103 LEU B 141 HOH B 269 CRYST1 89.853 88.190 55.142 90.00 97.79 90.00 C 1 2 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 0.011130 0.000000 0.001520 0.00000 SCALE2 0.000000 0.011340 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018300 0.00000 HETATM 1 C ACE A 0 4.601 -16.686 -4.900 1.00 37.63 C HETATM 2 O ACE A 0 5.412 -16.416 -4.010 1.00 40.42 O HETATM 3 CH3 ACE A 0 3.912 -15.579 -5.692 1.00 37.55 C