HEADER LIGAND BINDING PROTEIN 30-AUG-02 1ML7 TITLE CRYSTAL STRUCTURE OF NITROPHORIN 4 COMPLEXED WITH 4-IODOPYRAZOLE COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITROPHORIN 4; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: NP4; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RHODNIUS PROLIXUS; SOURCE 3 ORGANISM_TAXID: 13249; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS NO CARRIER, FERRIC HEME, IODOPYRAZOLE, LIPOCALIN, BETA BARREL, KEYWDS 2 CONFORMATIONAL CHANGE, LIGAND BINDING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR R.E.BERRY,X.D.DING,A.WEICHSEL,W.R.MONTFORT,F.A.WALKER REVDAT 5 11-OCT-17 1ML7 1 REMARK REVDAT 4 02-DEC-15 1ML7 1 ATOM VERSN REVDAT 3 24-FEB-09 1ML7 1 VERSN REVDAT 2 09-MAR-04 1ML7 1 JRNL REMARK REVDAT 1 20-SEP-02 1ML7 0 JRNL AUTH R.E.BERRY,X.D.DING,T.K.SHOKHIREVA,A.WEICHSEL,W.R.MONTFORT, JRNL AUTH 2 F.A.WALKER JRNL TITL AXIAL LIGAND COMPLEXES OF THE RHODNIUS NITROPHORINS: JRNL TITL 2 REDUCTION POTENTIALS, BINDING CONSTANTS, EPR SPECTRA, AND JRNL TITL 3 STRUCTURES OF THE 4-IODOPYRAZOLE AND IMIDAZOLE COMPLEXES OF JRNL TITL 4 NP4 JRNL REF J.BIOL.INORG.CHEM. V. 9 135 2004 JRNL REFN ISSN 0949-8257 JRNL PMID 14673714 JRNL DOI 10.1007/S00775-003-0505-0 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH S.A.ROBERTS,A.WEICHSEL,Y.QIU,J.A.SHELNUTT,F.A.WALKER, REMARK 1 AUTH 2 W.R.MONTFORT REMARK 1 TITL LIGAND-INDUCED HEME RUFFLING AND BENT NO GEOMETRY IN REMARK 1 TITL 2 ULTRA-HIGH-RESOLUTION STRUCTURES OF NITOPHORIN 4 REMARK 1 REF BIOCHEMISTRY V. 40 11327 2001 REMARK 1 REFN ISSN 0006-2960 REMARK 1 DOI 10.1021/BI0109257 REMARK 2 REMARK 2 RESOLUTION. 1.25 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-97 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.25 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.40 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.9 REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (NO CUTOFF). REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : 0.145 REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.145 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.194 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 2087 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 42458 REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F). REMARK 3 R VALUE (WORKING + TEST SET, F>4SIG(F)) : NULL REMARK 3 R VALUE (WORKING SET, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE (F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1428 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 57 REMARK 3 SOLVENT ATOMS : 244 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : NULL REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : NULL REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : NULL REMARK 3 NUMBER OF RESTRAINTS : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.020 REMARK 3 ANGLE DISTANCES (A) : 0.040 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : 0.100 REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.100 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : 0.020 REMARK 3 RIGID-BOND ADP COMPONENTS (A**2) : NULL REMARK 3 SIMILAR ADP COMPONENTS (A**2) : NULL REMARK 3 APPROXIMATELY ISOTROPIC ADPS (A**2) : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED: NULL REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH & HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1ML7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-SEP-02. REMARK 100 THE DEPOSITION ID IS D_1000016999. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 17-MAY-02 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL7-1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.080 REMARK 200 MONOCHROMATOR : CYCLINDRICALLY BENT TRIANGULAR REMARK 200 SI(111) ASYMMETRIC CUT REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR REMARK 200 DATA SCALING SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 42458 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.250 REMARK 200 RESOLUTION RANGE LOW (A) : 22.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.8 REMARK 200 DATA REDUNDANCY : 5.100 REMARK 200 R MERGE (I) : 0.05000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 21.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.25 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.29 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.70 REMARK 200 R MERGE FOR SHELL (I) : 0.15800 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 7.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: SHELXS REMARK 200 STARTING MODEL: PDB ENTRY 1IKJ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 36.99 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.95 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM PHOSPHATE, PH 7.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP AT 298K, TEMPERATURE 298.0K 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 35.20200 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.38150 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 35.20200 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 21.38150 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 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 207 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 208 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 266 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 432 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 446 LIES ON A SPECIAL POSITION. 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 OE1 GLU A 168 O HOH A 452 4547 2.06 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 TYR A 28 CB - CG - CD2 ANGL. DEV. = 6.5 DEGREES REMARK 500 TYR A 28 CB - CG - CD1 ANGL. DEV. = -5.8 DEGREES REMARK 500 ASP A 30 CB - CG - OD1 ANGL. DEV. = 8.1 DEGREES REMARK 500 ARG A 39 NE - CZ - NH1 ANGL. DEV. = 3.8 DEGREES REMARK 500 ARG A 39 NE - CZ - NH2 ANGL. DEV. = -5.2 DEGREES REMARK 500 CYS A 41 CA - CB - SG ANGL. DEV. = -15.0 DEGREES REMARK 500 CYS A 41 CA - CB - SG ANGL. DEV. = 14.6 DEGREES REMARK 500 TYR A 111 CB - CG - CD2 ANGL. DEV. = 4.8 DEGREES REMARK 500 TYR A 111 CB - CG - CD1 ANGL. DEV. = -5.1 DEGREES REMARK 500 CYS A 171 CA - CB - SG ANGL. DEV. = 9.2 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 HEV A 185 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 59 NE2 REMARK 620 2 HEV A 185 NA 89.0 REMARK 620 3 HEV A 185 NB 90.5 90.6 REMARK 620 4 HEV A 185 NC 89.6 177.1 92.0 REMARK 620 5 HEV A 185 ND 88.7 89.2 179.2 88.2 REMARK 620 6 PYZ A 186 N1 178.9 92.0 89.9 89.4 90.9 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 HEV A 185 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PYZ A 186 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PYZ A 187 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1IKJ RELATED DB: PDB REMARK 900 THE SAME PROTEIN COMPLEXED WITH IMIDAZOLE DBREF 1ML7 A 1 184 UNP Q94734 NP4_RHOPR 22 205 SEQRES 1 A 184 ALA CYS THR LYS ASN ALA ILE ALA GLN THR GLY PHE ASN SEQRES 2 A 184 LYS ASP LYS TYR PHE ASN GLY ASP VAL TRP TYR VAL THR SEQRES 3 A 184 ASP TYR LEU ASP LEU GLU PRO ASP ASP VAL PRO LYS ARG SEQRES 4 A 184 TYR CYS ALA ALA LEU ALA ALA GLY THR ALA SER GLY LYS SEQRES 5 A 184 LEU LYS GLU ALA LEU TYR HIS TYR ASP PRO LYS THR GLN SEQRES 6 A 184 ASP THR PHE TYR ASP VAL SER GLU LEU GLN VAL GLU SER SEQRES 7 A 184 LEU GLY LYS TYR THR ALA ASN PHE LYS LYS VAL ASP LYS SEQRES 8 A 184 ASN GLY ASN VAL LYS VAL ALA VAL THR ALA GLY ASN TYR SEQRES 9 A 184 TYR THR PHE THR VAL MET TYR ALA ASP ASP SER SER ALA SEQRES 10 A 184 LEU ILE HIS THR CYS LEU HIS LYS GLY ASN LYS ASP LEU SEQRES 11 A 184 GLY ASP LEU TYR ALA VAL LEU ASN ARG ASN LYS ASP ALA SEQRES 12 A 184 ALA ALA GLY ASP LYS VAL LYS SER ALA VAL SER ALA ALA SEQRES 13 A 184 THR LEU GLU PHE SER LYS PHE ILE SER THR LYS GLU ASN SEQRES 14 A 184 ASN CYS ALA TYR ASP ASN ASP SER LEU LYS SER LEU LEU SEQRES 15 A 184 THR LYS HET HEV A 185 45 HET PYZ A 186 6 HET PYZ A 187 6 HETNAM HEV 5,8-DIMETHYL-1,2,3,4-TETRAVINYLPORPHINE-6,7-DIPROPIONIC HETNAM 2 HEV ACID FERROUS COMPLEX HETNAM PYZ 4-IODOPYRAZOLE HETSYN HEV 1,3-DEDIMETHYL-1,3-DIVINYL HEME FORMUL 2 HEV C36 H32 FE N4 O4 FORMUL 3 PYZ 2(C3 H3 I N2) FORMUL 5 HOH *244(H2 O) HELIX 1 1 ASN A 13 PHE A 18 1 6 HELIX 2 2 GLY A 146 ALA A 156 1 11 HELIX 3 3 GLU A 159 PHE A 163 5 5 HELIX 4 4 ASP A 174 LEU A 182 1 9 SHEET 1 A10 ASN A 19 ASP A 30 0 SHEET 2 A10 CYS A 41 ALA A 49 -1 O ALA A 42 N VAL A 25 SHEET 3 A10 LYS A 52 TYR A 60 -1 O LYS A 52 N ALA A 49 SHEET 4 A10 THR A 67 SER A 78 -1 O PHE A 68 N HIS A 59 SHEET 5 A10 LYS A 81 VAL A 89 -1 O LYS A 81 N GLU A 77 SHEET 6 A10 ASN A 103 ALA A 112 -1 O ASN A 103 N PHE A 86 SHEET 7 A10 SER A 116 LYS A 125 -1 N LEU A 118 O TYR A 111 SHEET 8 A10 LEU A 133 ASN A 138 -1 O LEU A 133 N THR A 121 SHEET 9 A10 ASN A 19 ASP A 30 -1 N TYR A 24 O ASN A 138 SHEET 10 A10 ILE A 164 SER A 165 -1 N ILE A 164 O TYR A 28 SHEET 11 A10 LYS A 81 VAL A 89 0 SHEET 12 A10 VAL A 95 VAL A 97 -1 N LYS A 96 O LYS A 88 SSBOND 1 CYS A 2 CYS A 122 1555 1555 2.02 SSBOND 2 CYS A 41 CYS A 171 1555 1555 2.00 LINK NE2 HIS A 59 FE HEV A 185 1555 1555 2.00 LINK N1 PYZ A 186 FE HEV A 185 1555 1555 1.99 SITE 1 AC1 19 VAL A 25 TYR A 28 VAL A 36 TYR A 40 SITE 2 AC1 19 LEU A 44 LEU A 57 HIS A 59 ASP A 70 SITE 3 AC1 19 PHE A 86 LYS A 88 TYR A 105 PHE A 107 SITE 4 AC1 19 LEU A 123 LYS A 125 LYS A 128 LEU A 133 SITE 5 AC1 19 PYZ A 186 HOH A 215 HOH A 444 SITE 1 AC2 6 ASP A 35 LEU A 123 GLY A 131 LEU A 133 SITE 2 AC2 6 HEV A 185 HOH A 408 SITE 1 AC3 4 ASN A 85 ALA A 101 GLY A 102 TYR A 104 CRYST1 70.404 42.763 52.769 90.00 94.05 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 0.014204 0.000000 0.001005 0.00000 SCALE2 0.000000 0.023385 -0.000001 0.00000 SCALE3 0.000000 0.000000 0.018998 0.00000