4ATJ - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 19-APR-99 4ATJ

TITLE DISTAL HEME POCKET MUTANT (H42E) OF RECOMBINANT HORSERADISH TITLE 2 PEROXIDASE IN COMPLEX WITH BENZHYDROXAMIC ACID

COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (PEROXIDASE C1A); COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: HRP C, HRP C1A; COMPND 5 EC: 1.11.1.7; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES; COMPND 8 OTHER_DETAILS: CONTAINS HEME, TWO STRUCTURAL CALCIUM IONS, COMPND 9 AND BENZHYDROXAMIC ACID BOUND IN ACTIVE SITE

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ARMORACIA RUSTICANA; SOURCE 3 ORGANISM_TAXID: 3704; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562

KEYWDS OXIDOREDUCTASE, PEROXIDASE, HEME ENZYME, MUTANT

EXPDTA X-RAY DIFFRACTION

AUTHOR K.MENO,S.JENNINGS,A.T.SMITH,A.HENRIKSEN,M.GAJHEDE

REVDAT 2 24-FEB-09 4ATJ 1 VERSN REVDAT 1 02-OCT-02 4ATJ 0

JRNL AUTH K.MENO,S.JENNINGS,A.T.SMITH,A.HENRIKSEN,M.GAJHEDE JRNL TITL STRUCTURAL ANALYSIS OF THE TWO HORSERADISH JRNL TITL 2 PEROXIDASE CATALYTIC RESIDUE VARIANTS H42E AND JRNL TITL 3 R38S/H42E: IMPLICATIONS FOR THE CATALYTIC CYCLE. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 58 1803 2002 JRNL REFN ISSN 0907-4449 JRNL PMID 12351824 JRNL DOI 10.1107/S090744490201329X

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.HENRIKSEN,D.J.SCHULLER,K.MENO,K.G.WELINDER, REMARK 1 AUTH 2 A.T.SMITH,M.GAJHEDE REMARK 1 TITL STRUCTURAL INTERACTIONS BETWEEN HORSERADISH REMARK 1 TITL 2 PEROXIDASE C AND THE SUBSTRATEBENZHYDROXAMIC ACID REMARK 1 TITL 3 DETERMINED BY X-RAY CRYSTALLOGRAPHY REMARK 1 REF BIOCHEMISTRY V. 37 8054 1998 REMARK 1 REFN ISSN 0006-2960 REMARK 1 DOI 10.1021/BI980234J REMARK 1 REFERENCE 2 REMARK 1 AUTH M.GAJHEDE,D.J.SCHULLER,A.HENRIKSEN,A.T.SMITH, REMARK 1 AUTH 2 T.L.POULOS REMARK 1 TITL CRYSTAL STRUCTURE OF HORSERADISH PEROXIDASE C AT REMARK 1 TITL 2 2.15 A RESOLUTION REMARK 1 REF NAT.STRUCT.BIOL. V. 4 1032 1997 REMARK 1 REFN ISSN 1072-8368

REMARK 2 REMARK 2 RESOLUTION. 2.50 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 45.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 10000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.2 REMARK 3 NUMBER OF REFLECTIONS : 22747 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) : 0.162 REMARK 3 FREE R VALUE : 0.194 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.800 REMARK 3 FREE R VALUE TEST SET COUNT : 2235 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.004 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) : 2.50 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.54 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 92.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 970 REMARK 3 BIN R VALUE (WORKING SET) : 0.2240 REMARK 3 BIN FREE R VALUE : 0.2860 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 10.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 115 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.027 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4770 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 110 REMARK 3 SOLVENT ATOMS : 304 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 11.40 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.22 REMARK 3 ESD FROM SIGMAA (A) : 0.27 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.27 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.32 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.10 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.10 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.94 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 2.030 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 3.050 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 3.690 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.160 ; 2.500 REMARK 3 REMARK 3 NCS MODEL : CONSTRAINTS 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 : PROTEIN_REP_KM.PARAM REMARK 3 PARAMETER FILE 2 : PARAM19X_KM_CF_N.HEME REMARK 3 PARAMETER FILE 3 : PARAMETER_KM.ELEMENTS REMARK 3 PARAMETER FILE 4 : PARAM19.SOL REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX_KM.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH19X_KM_CF_N.HEME REMARK 3 TOPOLOGY FILE 3 : TOPH_NOCHARGE.MG REMARK 3 TOPOLOGY FILE 4 : TOPH19_KM.SOL REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED. THE REMARK 3 STRUCTURE WAS REFINED USING STRICT NON- CRYSTALLOGRAPHIC REMARK 3 SYMMETRY CONSTRAINTS.

REMARK 4 REMARK 4 4ATJ COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 20-APR-99. REMARK 100 THE RCSB ID CODE IS RCSB000885.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JUL-97 REMARK 200 TEMPERATURE (KELVIN) : 290 REMARK 200 PH : 6.5 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 : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 23291 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.500 REMARK 200 RESOLUTION RANGE LOW (A) : 45.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.2 REMARK 200 DATA REDUNDANCY : 2.600 REMARK 200 R MERGE (I) : 0.13200 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 7.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.50 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.54 REMARK 200 COMPLETENESS FOR SHELL (%) : 95.4 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : 0.39000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.000 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: PDB ENTRY 2ATJ REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.5

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 31.13500 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL

REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 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 308 CA C O CB OG REMARK 470 SER B 308 CA C O CB OG

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 A 442 O HOH B 441 2.09 REMARK 500 O HOH A 443 O HOH B 440 2.09 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 LEU B 138 NH2 ARG B 264 2646 2.16 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 CYS A 11 65.32 -168.16 REMARK 500 PHE A 61 149.39 -177.75 REMARK 500 SER A 73 -50.43 -144.19 REMARK 500 ARG A 93 45.12 37.92 REMARK 500 ASN A 186 80.66 -151.92 REMARK 500 ALA A 256 20.75 -75.03 REMARK 500 THR A 288 67.86 26.52 REMARK 500 ASN A 307 -25.84 104.70 REMARK 500 CYS B 11 65.36 -168.14 REMARK 500 PHE B 61 149.34 -177.78 REMARK 500 SER B 73 -50.44 -144.20 REMARK 500 ARG B 93 45.14 37.93 REMARK 500 ASN B 186 80.72 -151.92 REMARK 500 ALA B 256 20.77 -75.01 REMARK 500 THR B 288 67.82 26.57 REMARK 500 ASN B 307 -25.83 104.69 REMARK 500 REMARK 500 REMARK: NULL

REMARK 600 REMARK 600 HETEROGEN REMARK 600 THE CHARGE IS UNKNOWN SINCE IT IS POSITIONED IN THE ACTIVE REMARK 600 SITE, WHICH CHANGES THE NORMAL PKA. REMARK 600 REMARK 600 THE CHARGE OF 3+ REFERS TO THE FE ATOM. THE CARBOXYLIC REMARK 600 ACIDS AND THE NITROGENS WILL CONTRIBUTE SOME NEGATIVE REMARK 600 CHARGE TO THE OVERALL VALUE.

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 CA A 352 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 43 O REMARK 620 2 ASP A 43 OD1 77.5 REMARK 620 3 VAL A 46 O 86.4 163.5 REMARK 620 4 GLY A 48 O 74.3 92.2 87.3 REMARK 620 5 ASP A 50 OD1 145.1 83.3 112.6 77.7 REMARK 620 6 SER A 52 OG 130.4 92.7 94.6 155.3 78.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 350 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 170 NE2 REMARK 620 2 HOH A 365 O 178.5 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 351 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 171 O REMARK 620 2 THR A 171 OG1 70.8 REMARK 620 3 ASP A 222 OD2 89.2 89.9 REMARK 620 4 THR A 225 O 84.6 155.4 91.0 REMARK 620 5 THR A 225 OG1 149.6 139.1 85.9 65.5 REMARK 620 6 ILE A 228 O 87.9 90.7 176.7 87.1 95.7 REMARK 620 7 ASP A 230 OD1 140.3 70.3 98.3 133.8 70.1 85.0 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 352 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 43 O REMARK 620 2 ASP B 43 OD1 77.6 REMARK 620 3 VAL B 46 O 86.4 163.5 REMARK 620 4 GLY B 48 O 74.3 92.2 87.3 REMARK 620 5 ASP B 50 OD1 145.1 83.3 112.6 77.7 REMARK 620 6 SER B 52 OG 130.4 92.7 94.6 155.3 78.9 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 350 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 170 NE2 REMARK 620 2 HOH B 364 O 178.5 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA B 351 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR B 171 O REMARK 620 2 THR B 171 OG1 70.8 REMARK 620 3 ASP B 222 OD2 89.2 89.9 REMARK 620 4 THR B 225 O 84.6 155.4 90.9 REMARK 620 5 THR B 225 OG1 149.6 139.0 85.9 65.5 REMARK 620 6 ILE B 228 O 87.9 90.7 176.7 87.1 95.7 REMARK 620 7 ASP B 230 OD1 140.3 70.2 98.3 133.8 70.1 85.0 REMARK 620 N 1 2 3 4 5 6

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: BEN REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: BENZHYDROZAMIC ACID BINDING SITE. REMARK 800 SITE_IDENTIFIER: BEM REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: BENZHYDROZAMIC ACID BINDING SITE. REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 351 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 352 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 351 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA B 352 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 350 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BHO A 353 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 350 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BHO B 353

REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE N-TERMINAL METHIONINE ORIGINATES FROM THE E. COLI REMARK 999 EXPRESSION SYSTEM. RESIDUES 1 - 29 AND 339 - 353 REMARK 999 DESCRIBED IN SWS ARE PROPEPTIDES. REMARK 999 REMARK 999 THE FIRST RESIDUE IS NUMBERED ZERO SUCH THAT THE RESIDUE REMARK 999 NUMBERS CONFORMS WITH THE WILD TYPE REMARK 999 (PDB ENTRY 1ATJ AND 2ATJ).

DBREF 4ATJ A 0 308 UNP P00433 PER1A_ARMRU 30 338 DBREF 4ATJ B 0 308 UNP P00433 PER1A_ARMRU 30 338

SEQADV 4ATJ MET A 0 UNP P00433 ALA 30 EXPRESSION TAG SEQADV 4ATJ MET B 0 UNP P00433 ALA 30 EXPRESSION TAG SEQADV 4ATJ GLU A 42 UNP P00433 HIS 72 MUTATION SEQADV 4ATJ GLU B 42 UNP P00433 HIS 72 MUTATION

SEQRES 1 A 309 MET GLN LEU THR PRO THR PHE TYR ASP ASN SER CYS PRO SEQRES 2 A 309 ASN VAL SER ASN ILE VAL ARG ASP THR ILE VAL ASN GLU SEQRES 3 A 309 LEU ARG SER ASP PRO ARG ILE ALA ALA SER ILE LEU ARG SEQRES 4 A 309 LEU HIS PHE GLU ASP CYS PHE VAL ASN GLY CYS ASP ALA SEQRES 5 A 309 SER ILE LEU LEU ASP ASN THR THR SER PHE ARG THR GLU SEQRES 6 A 309 LYS ASP ALA PHE GLY ASN ALA ASN SER ALA ARG GLY PHE SEQRES 7 A 309 PRO VAL ILE ASP ARG MET LYS ALA ALA VAL GLU SER ALA SEQRES 8 A 309 CYS PRO ARG THR VAL SER CYS ALA ASP LEU LEU THR ILE SEQRES 9 A 309 ALA ALA GLN GLN SER VAL THR LEU ALA GLY GLY PRO SER SEQRES 10 A 309 TRP ARG VAL PRO LEU GLY ARG ARG ASP SER LEU GLN ALA SEQRES 11 A 309 PHE LEU ASP LEU ALA ASN ALA ASN LEU PRO ALA PRO PHE SEQRES 12 A 309 PHE THR LEU PRO GLN LEU LYS ASP SER PHE ARG ASN VAL SEQRES 13 A 309 GLY LEU ASN ARG SER SER ASP LEU VAL ALA LEU SER GLY SEQRES 14 A 309 GLY HIS THR PHE GLY LYS ASN GLN CYS ARG PHE ILE MET SEQRES 15 A 309 ASP ARG LEU TYR ASN PHE SER ASN THR GLY LEU PRO ASP SEQRES 16 A 309 PRO THR LEU ASN THR THR TYR LEU GLN THR LEU ARG GLY SEQRES 17 A 309 LEU CYS PRO LEU ASN GLY ASN LEU SER ALA LEU VAL ASP SEQRES 18 A 309 PHE ASP LEU ARG THR PRO THR ILE PHE ASP ASN LYS TYR SEQRES 19 A 309 TYR VAL ASN LEU GLU GLU GLN LYS GLY LEU ILE GLN SER SEQRES 20 A 309 ASP GLN GLU LEU PHE SER SER PRO ASN ALA THR ASP THR SEQRES 21 A 309 ILE PRO LEU VAL ARG SER PHE ALA ASN SER THR GLN THR SEQRES 22 A 309 PHE PHE ASN ALA PHE VAL GLU ALA MET ASP ARG MET GLY SEQRES 23 A 309 ASN ILE THR PRO LEU THR GLY THR GLN GLY GLN ILE ARG SEQRES 24 A 309 LEU ASN CYS ARG VAL VAL ASN SER ASN SER SEQRES 1 B 309 MET GLN LEU THR PRO THR PHE TYR ASP ASN SER CYS PRO SEQRES 2 B 309 ASN VAL SER ASN ILE VAL ARG ASP THR ILE VAL ASN GLU SEQRES 3 B 309 LEU ARG SER ASP PRO ARG ILE ALA ALA SER ILE LEU ARG SEQRES 4 B 309 LEU HIS PHE GLU ASP CYS PHE VAL ASN GLY CYS ASP ALA SEQRES 5 B 309 SER ILE LEU LEU ASP ASN THR THR SER PHE ARG THR GLU SEQRES 6 B 309 LYS ASP ALA PHE GLY ASN ALA ASN SER ALA ARG GLY PHE SEQRES 7 B 309 PRO VAL ILE ASP ARG MET LYS ALA ALA VAL GLU SER ALA SEQRES 8 B 309 CYS PRO ARG THR VAL SER CYS ALA ASP LEU LEU THR ILE SEQRES 9 B 309 ALA ALA GLN GLN SER VAL THR LEU ALA GLY GLY PRO SER SEQRES 10 B 309 TRP ARG VAL PRO LEU GLY ARG ARG ASP SER LEU GLN ALA SEQRES 11 B 309 PHE LEU ASP LEU ALA ASN ALA ASN LEU PRO ALA PRO PHE SEQRES 12 B 309 PHE THR LEU PRO GLN LEU LYS ASP SER PHE ARG ASN VAL SEQRES 13 B 309 GLY LEU ASN ARG SER SER ASP LEU VAL ALA LEU SER GLY SEQRES 14 B 309 GLY HIS THR PHE GLY LYS ASN GLN CYS ARG PHE ILE MET SEQRES 15 B 309 ASP ARG LEU TYR ASN PHE SER ASN THR GLY LEU PRO ASP SEQRES 16 B 309 PRO THR LEU ASN THR THR TYR LEU GLN THR LEU ARG GLY SEQRES 17 B 309 LEU CYS PRO LEU ASN GLY ASN LEU SER ALA LEU VAL ASP SEQRES 18 B 309 PHE ASP LEU ARG THR PRO THR ILE PHE ASP ASN LYS TYR SEQRES 19 B 309 TYR VAL ASN LEU GLU GLU GLN LYS GLY LEU ILE GLN SER SEQRES 20 B 309 ASP GLN GLU LEU PHE SER SER PRO ASN ALA THR ASP THR SEQRES 21 B 309 ILE PRO LEU VAL ARG SER PHE ALA ASN SER THR GLN THR SEQRES 22 B 309 PHE PHE ASN ALA PHE VAL GLU ALA MET ASP ARG MET GLY SEQRES 23 B 309 ASN ILE THR PRO LEU THR GLY THR GLN GLY GLN ILE ARG SEQRES 24 B 309 LEU ASN CYS ARG VAL VAL ASN SER ASN SER

HET CA A 351 1 HET CA A 352 1 HET CA B 351 1 HET CA B 352 1 HET HEM A 350 43 HET BHO A 353 10 HET HEM B 350 43 HET BHO B 353 10

HETNAM CA CALCIUM ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM BHO BENZHYDROXAMIC ACID

HETSYN HEM HEME

FORMUL 3 CA 4(CA 2+) FORMUL 7 HEM 2(C34 H32 FE N4 O4) FORMUL 8 BHO 2(C7 H7 N O2) FORMUL 11 HOH *304(H2 O)

HELIX 1 1 VAL A 14 SER A 28 1 15 HELIX 2 2 ILE A 32 CYS A 44 1 13 HELIX 3 3 SER A 52 LEU A 54 5 3 HELIX 4 4 GLU A 64 ASP A 66 5 3 HELIX 5 5 PHE A 77 ALA A 90 1 14 HELIX 6 6 CYS A 97 LEU A 111 1 15 HELIX 7 7 LEU A 131 ASN A 137 1 7 HELIX 8 8 LEU A 145 VAL A 155 1 11 HELIX 9 9 SER A 160 THR A 171 1 12 HELIX 10 10 CYS A 177 PHE A 179 5 3 HELIX 11 11 MET A 181 TYR A 185 1 5 HELIX 12 12 PHE A 187 ASN A 189 5 3 HELIX 13 13 THR A 199 LEU A 208 1 10 HELIX 14 14 ASN A 231 GLU A 239 5 9 HELIX 15 15 GLN A 245 SER A 252 1 8 HELIX 16 16 THR A 257 ASN A 268 1 12 HELIX 17 17 THR A 270 ASN A 286 1 17 HELIX 18 18 VAL B 14 SER B 28 1 15 HELIX 19 19 ILE B 32 CYS B 44 1 13 HELIX 20 20 SER B 52 LEU B 54 5 3 HELIX 21 21 GLU B 64 ASP B 66 5 3 HELIX 22 22 PHE B 77 ALA B 90 1 14 HELIX 23 23 CYS B 97 LEU B 111 1 15 HELIX 24 24 LEU B 131 ASN B 137 1 7 HELIX 25 25 LEU B 145 VAL B 155 1 11 HELIX 26 26 SER B 160 THR B 171 1 12 HELIX 27 27 CYS B 177 PHE B 179 5 3 HELIX 28 28 MET B 181 TYR B 185 1 5 HELIX 29 29 PHE B 187 ASN B 189 5 3 HELIX 30 30 THR B 199 LEU B 208 1 10 HELIX 31 31 ASN B 231 GLU B 239 5 9 HELIX 32 32 GLN B 245 SER B 252 1 8 HELIX 33 33 THR B 257 ASN B 268 1 12 HELIX 34 34 THR B 270 ASN B 286 1 17

SHEET 1 A 2 LYS A 174 GLN A 176 0 SHEET 2 A 2 LEU A 218 ASP A 220 -1 N VAL A 219 O ASN A 175 SHEET 1 B 2 LYS B 174 GLN B 176 0 SHEET 2 B 2 LEU B 218 ASP B 220 -1 N VAL B 219 O ASN B 175

SSBOND 1 CYS A 11 CYS A 91 1555 1555 2.02 SSBOND 2 CYS A 44 CYS A 49 1555 1555 2.02 SSBOND 3 CYS A 97 CYS A 301 1555 1555 2.03 SSBOND 4 CYS A 177 CYS A 209 1555 1555 2.02 SSBOND 5 CYS B 11 CYS B 91 1555 1555 2.02 SSBOND 6 CYS B 44 CYS B 49 1555 1555 2.02 SSBOND 7 CYS B 97 CYS B 301 1555 1555 2.03 SSBOND 8 CYS B 177 CYS B 209 1555 1555 2.02

LINK O ASP A 43 CA CA A 352 1555 1555 2.53 LINK OD1 ASP A 43 CA CA A 352 1555 1555 2.56 LINK O VAL A 46 CA CA A 352 1555 1555 2.49 LINK O GLY A 48 CA CA A 352 1555 1555 2.65 LINK OD1 ASP A 50 CA CA A 352 1555 1555 2.55 LINK OG SER A 52 CA CA A 352 1555 1555 2.63 LINK NE2 HIS A 170 FE HEM A 350 1555 1555 2.22 LINK O THR A 171 CA CA A 351 1555 1555 2.44 LINK OG1 THR A 171 CA CA A 351 1555 1555 2.67 LINK OD2 ASP A 222 CA CA A 351 1555 1555 2.46 LINK O THR A 225 CA CA A 351 1555 1555 2.51 LINK OG1 THR A 225 CA CA A 351 1555 1555 2.58 LINK O ILE A 228 CA CA A 351 1555 1555 2.48 LINK OD1 ASP A 230 CA CA A 351 1555 1555 2.60 LINK O ASP B 43 CA CA B 352 1555 1555 2.53 LINK OD1 ASP B 43 CA CA B 352 1555 1555 2.56 LINK O VAL B 46 CA CA B 352 1555 1555 2.49 LINK O GLY B 48 CA CA B 352 1555 1555 2.65 LINK OD1 ASP B 50 CA CA B 352 1555 1555 2.55 LINK OG SER B 52 CA CA B 352 1555 1555 2.63 LINK NE2 HIS B 170 FE HEM B 350 1555 1555 2.22 LINK O THR B 171 CA CA B 351 1555 1555 2.44 LINK OG1 THR B 171 CA CA B 351 1555 1555 2.67 LINK OD2 ASP B 222 CA CA B 351 1555 1555 2.46 LINK O THR B 225 CA CA B 351 1555 1555 2.51 LINK OG1 THR B 225 CA CA B 351 1555 1555 2.58 LINK O ILE B 228 CA CA B 351 1555 1555 2.48 LINK OD1 ASP B 230 CA CA B 351 1555 1555 2.60 LINK O1 BHO A 353 NH2 ARG A 38 1555 1555 2.86 LINK O2 BHO B 353 OE2 GLU B 42 1555 1555 2.72 LINK FE HEM A 350 O HOH A 365 1555 1555 2.86 LINK FE HEM B 350 O HOH B 364 1555 1555 2.86

SITE 1 BEN 8 ARG A 38 GLU A 42 PHE A 68 GLY A 69 SITE 2 BEN 8 PRO A 139 ALA A 140 PRO A 141 PHE A 179 SITE 1 BEM 8 ARG B 38 GLU B 42 PHE B 68 GLY B 69 SITE 2 BEM 8 PRO B 139 ALA B 140 PRO B 141 PHE B 179 SITE 1 AC1 5 THR A 171 ASP A 222 THR A 225 ILE A 228 SITE 2 AC1 5 ASP A 230 SITE 1 AC2 5 ASP A 43 VAL A 46 GLY A 48 ASP A 50 SITE 2 AC2 5 SER A 52 SITE 1 AC3 5 THR B 171 ASP B 222 THR B 225 ILE B 228 SITE 2 AC3 5 ASP B 230 SITE 1 AC4 5 ASP B 43 VAL B 46 GLY B 48 ASP B 50 SITE 2 AC4 5 SER B 52 SITE 1 AC5 26 ARG A 31 ALA A 34 SER A 35 LEU A 37 SITE 2 AC5 26 ARG A 38 PHE A 41 SER A 73 PRO A 139 SITE 3 AC5 26 ALA A 140 PRO A 141 LEU A 166 GLY A 169 SITE 4 AC5 26 HIS A 170 PHE A 172 GLY A 173 LYS A 174 SITE 5 AC5 26 ASN A 175 GLN A 176 PHE A 179 PHE A 221 SITE 6 AC5 26 SER A 246 BHO A 353 HOH A 365 HOH A 412 SITE 7 AC5 26 HOH A 440 HOH A 476 SITE 1 AC6 10 ARG A 38 PHE A 41 GLU A 42 PHE A 68 SITE 2 AC6 10 GLY A 69 PRO A 139 PRO A 141 PHE A 179 SITE 3 AC6 10 HEM A 350 HOH A 365 SITE 1 AC7 26 ARG B 31 ALA B 34 SER B 35 LEU B 37 SITE 2 AC7 26 ARG B 38 PHE B 41 SER B 73 PRO B 139 SITE 3 AC7 26 ALA B 140 PRO B 141 LEU B 166 GLY B 169 SITE 4 AC7 26 HIS B 170 PHE B 172 GLY B 173 LYS B 174 SITE 5 AC7 26 ASN B 175 GLN B 176 PHE B 179 PHE B 221 SITE 6 AC7 26 SER B 246 BHO B 353 HOH B 364 HOH B 411 SITE 7 AC7 26 HOH B 438 HOH B 474 SITE 1 AC8 10 ARG B 38 PHE B 41 GLU B 42 PHE B 68 SITE 2 AC8 10 GLY B 69 PRO B 139 PRO B 141 PHE B 179 SITE 3 AC8 10 HEM B 350 HOH B 364

CRYST1 74.930 62.270 78.230 90.00 104.27 90.00 P 1 21 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 0.013346 0.000000 0.003394 0.00000

SCALE2 0.000000 0.016059 0.000000 0.00000

SCALE3 0.000000 0.000000 0.013190 0.00000

MTRIX1 1 -1.000000 -0.006300 0.002600 18.06980 1

MTRIX2 1 0.006300 -1.000000 0.007200 29.62120 1

MTRIX3 1 0.002600 0.007200 1.000000 0.04090 1