HEADER TRANSPORT PROTEIN 04-JUN-13 4L20 TITLE CRYSTAL STRUCTURE OF CIMEX NITROPHORIN A21V MUTANT FERROUS NO COMPLEX COMPND MOL_ID: 1; COMPND 2 MOLECULE: SALIVARY NITROPHORIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 23-302; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CIMEX LECTULARIUS; SOURCE 3 ORGANISM_COMMON: BED BUG; SOURCE 4 ORGANISM_TAXID: 79782; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21DE3; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET17B KEYWDS BETA SANDWICH, FERROUS HEME, THIOLATE HEME LIGAND, S-NITROSOCYSTEINE, KEYWDS 2 TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR H.B.BADGANDI,A.WEICHSEL,W.R.MONTFORT REVDAT 3 20-NOV-24 4L20 1 REMARK REVDAT 2 20-SEP-23 4L20 1 REMARK SEQADV LINK REVDAT 1 04-JUN-14 4L20 0 JRNL AUTH H.B.BADGANDI,J.T.HAZZARD,A.WEICHSEL,G.TOLLIN,W.R.MONTFORT JRNL TITL PROXIMAL CYSTEINE PROTONATION IN CIMEX NITROPHORIN IS KEY TO JRNL TITL 2 EFFICIENT NO TRANSPORT AND RELEASE. JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.68 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.7.003 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.68 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 35.16 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.7 REMARK 3 NUMBER OF REFLECTIONS : 28675 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) : 0.178 REMARK 3 R VALUE (WORKING SET) : 0.176 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1528 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.68 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.72 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2121 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 100.0 REMARK 3 BIN R VALUE (WORKING SET) : 0.2380 REMARK 3 BIN FREE R VALUE SET COUNT : 97 REMARK 3 BIN FREE R VALUE : 0.2940 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2231 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 45 REMARK 3 SOLVENT ATOMS : 187 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 32.80 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.28 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.05000 REMARK 3 B22 (A**2) : -0.03000 REMARK 3 B33 (A**2) : 0.00000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -0.20000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.110 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.112 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.074 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.175 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.968 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.950 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2367 ; 0.020 ; 0.020 REMARK 3 BOND LENGTHS OTHERS (A): 2195 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3233 ; 1.933 ; 1.981 REMARK 3 BOND ANGLES OTHERS (DEGREES): 5076 ; 0.939 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 289 ; 6.970 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 110 ;38.910 ;25.227 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 409 ;14.572 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 9 ;15.932 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 358 ; 0.124 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2696 ; 0.011 ; 0.021 REMARK 3 GENERAL PLANES OTHERS (A): 543 ; 0.004 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 4L20 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-JUN-13. REMARK 100 THE DEPOSITION ID IS D_1000080080. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 23-APR-08 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9798 REMARK 200 MONOCHROMATOR : DIAMOND (111) DOUBLE CRYSTAL REMARK 200 OPTICS : BENT (SI)-MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 325 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR REMARK 200 DATA SCALING SOFTWARE : CRYSTALCLEAR REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 30208 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.680 REMARK 200 RESOLUTION RANGE LOW (A) : 40.730 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 5.240 REMARK 200 R MERGE (I) : 0.05500 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 13.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.68 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.74 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 5.20 REMARK 200 R MERGE FOR SHELL (I) : 0.27700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: REFMAC 5.7.003 REMARK 200 STARTING MODEL: 1NTF REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 41.48 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000 , PH 5.6, VAPOR DIFFUSION, REMARK 280 HANGING DROP, TEMPERATURE 298K 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 20.90700 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: 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 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 VAL A 21 124.43 -39.19 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 301 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 NO A 302 N REMARK 620 2 HEM A 301 NA 89.0 REMARK 620 3 HEM A 301 NB 93.6 89.6 REMARK 620 4 HEM A 301 NC 91.7 179.2 90.0 REMARK 620 5 HEM A 301 ND 87.2 91.2 178.9 89.2 REMARK 620 6 NO A 302 O 21.9 71.8 80.3 108.8 100.7 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 HEM A 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO A 302 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1NTF RELATED DB: PDB REMARK 900 WILDTYPE PROTEIN REMARK 900 RELATED ID: 1Y21 RELATED DB: PDB REMARK 900 WILDTYPE PROTEIN FERROUS NO COMPLEX REMARK 900 RELATED ID: 4L21 RELATED DB: PDB REMARK 900 RELATED ID: 4L1Y RELATED DB: PDB REMARK 900 RELATED ID: 4L1Z RELATED DB: PDB DBREF 4L20 A 3 282 UNP O76745 O76745_CIMLE 23 302 SEQADV 4L20 VAL A 21 UNP O76745 ALA 41 ENGINEERED MUTATION SEQRES 1 A 280 PRO PRO ALA GLN LEU SER VAL HIS THR VAL SER TRP ASN SEQRES 2 A 280 SER GLY HIS GLU ARG VAL PRO THR ASN LEU GLU GLU LEU SEQRES 3 A 280 LEU GLY LEU ASN SER GLY GLU THR PRO ASP VAL ILE ALA SEQRES 4 A 280 VAL ALA VAL GLN GLY PHE GLY PHE GLN THR ASP LYS PRO SEQRES 5 A 280 GLN GLN GLY PRO ALA SNC VAL LYS ASN PHE GLN SER LEU SEQRES 6 A 280 LEU THR SER LYS GLY TYR THR LYS LEU LYS ASN THR ILE SEQRES 7 A 280 THR GLU THR MET GLY LEU THR VAL TYR CYS LEU GLU LYS SEQRES 8 A 280 HIS LEU ASP GLN ASN THR LEU LYS ASN GLU THR ILE ILE SEQRES 9 A 280 VAL THR VAL ASP ASP GLN LYS LYS SER GLY GLY ILE VAL SEQRES 10 A 280 THR SER PHE THR ILE TYR ASN LYS ARG PHE SER PHE THR SEQRES 11 A 280 THR SER ARG MET SER ASP GLU ASP VAL THR SER THR ASN SEQRES 12 A 280 THR LYS TYR ALA TYR ASP THR ARG LEU ASP TYR SER LYS SEQRES 13 A 280 LYS ASP ASP PRO SER ASP PHE LEU PHE TRP ILE GLY ASP SEQRES 14 A 280 LEU ASN VAL ARG VAL GLU THR ASN ALA THR HIS ALA LYS SEQRES 15 A 280 SER LEU VAL ASP GLN ASN ASN ILE ASP GLY LEU MET ALA SEQRES 16 A 280 PHE ASP GLN LEU LYS LYS ALA LYS GLU GLN LYS LEU PHE SEQRES 17 A 280 ASP GLY TRP THR GLU PRO GLN VAL THR PHE LYS PRO THR SEQRES 18 A 280 TYR LYS PHE LYS PRO ASN THR ASP GLU TYR ASP LEU SER SEQRES 19 A 280 ALA THR PRO SER TRP THR ASP ARG ALA LEU TYR LYS SER SEQRES 20 A 280 GLY THR GLY LYS THR ILE GLN PRO LEU SER TYR ASN SER SEQRES 21 A 280 LEU THR ASN TYR LYS GLN THR GLU HIS ARG PRO VAL LEU SEQRES 22 A 280 ALA LYS PHE ARG VAL THR LEU MODRES 4L20 SNC A 60 CYS S-NITROSO-CYSTEINE HET SNC A 60 8 HET HEM A 301 43 HET NO A 302 2 HETNAM SNC S-NITROSO-CYSTEINE HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NO NITRIC OXIDE HETSYN HEM HEME HETSYN NO NITROGEN MONOXIDE FORMUL 1 SNC C3 H6 N2 O3 S FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 NO N O FORMUL 4 HOH *187(H2 O) HELIX 1 1 ASN A 24 LEU A 29 1 6 HELIX 2 2 GLN A 56 LYS A 71 1 16 HELIX 3 3 LYS A 93 LEU A 95 5 3 HELIX 4 4 ASP A 151 ASP A 155 5 5 HELIX 5 5 ASN A 179 GLN A 189 1 11 HELIX 6 6 ASN A 191 ALA A 197 1 7 HELIX 7 7 GLN A 200 GLN A 207 1 8 SHEET 1 A 6 TYR A 73 ILE A 80 0 SHEET 2 A 6 MET A 84 LEU A 91 -1 O CYS A 90 N THR A 74 SHEET 3 A 6 VAL A 39 GLY A 46 -1 N ILE A 40 O TYR A 89 SHEET 4 A 6 GLN A 6 GLY A 17 1 N VAL A 12 O ALA A 43 SHEET 5 A 6 VAL A 274 THR A 281 -1 O VAL A 280 N LEU A 7 SHEET 6 A 6 ILE A 255 SER A 262 -1 N GLN A 256 O ARG A 279 SHEET 1 B 5 GLU A 103 THR A 108 0 SHEET 2 B 5 GLY A 116 ILE A 124 -1 O SER A 121 N GLU A 103 SHEET 3 B 5 LYS A 127 ARG A 135 -1 O PHE A 129 N PHE A 122 SHEET 4 B 5 PHE A 165 ASP A 171 1 O ILE A 169 N THR A 132 SHEET 5 B 5 ASP A 243 LYS A 248 -1 O ARG A 244 N GLY A 170 LINK C ALA A 59 N SNC A 60 1555 1555 1.32 LINK C SNC A 60 N VAL A 61 1555 1555 1.33 LINK FE HEM A 301 N NO A 302 1555 1555 1.79 LINK FE HEM A 301 O NO A 302 1555 1555 2.56 CISPEP 1 TYR A 224 LYS A 225 0 -3.00 SITE 1 AC1 21 GLU A 19 ARG A 20 VAL A 44 GLY A 48 SITE 2 AC1 21 PHE A 49 ASP A 52 PRO A 54 GLY A 57 SITE 3 AC1 21 SNC A 60 VAL A 61 PHE A 64 GLN A 65 SITE 4 AC1 21 LYS A 75 ASN A 78 ILE A 80 THR A 87 SITE 5 AC1 21 TYR A 89 NO A 302 HOH A 509 HOH A 518 SITE 6 AC1 21 HOH A 587 SITE 1 AC2 2 VAL A 44 HEM A 301 CRYST1 48.963 41.814 65.241 90.00 94.91 90.00 P 1 21 1 2 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 0.020424 0.000000 0.001753 0.00000 SCALE2 0.000000 0.023915 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015384 0.00000