1PA2 - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 18-MAY-99 1PA2

TITLE ARABIDOPSIS THALIANA PEROXIDASE A2

COMPND MOL_ID: 1; COMPND 2 MOLECULE: PEROXIDASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ATP A2; COMPND 5 EC: 1.11.1.7; COMPND 6 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ARABIDOPSIS THALIANA; SOURCE 3 ORGANISM_COMMON: THALE CRESS; SOURCE 4 ORGANISM_TAXID: 3702; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562

KEYWDS PEROXIDASE, OXIDOREDUCTASE

EXPDTA X-RAY DIFFRACTION

AUTHOR A.HENRIKSEN

REVDAT 3 13-JUL-11 1PA2 1 VERSN REVDAT 2 24-FEB-09 1PA2 1 VERSN REVDAT 1 15-NOV-00 1PA2 0

JRNL AUTH L.OSTERGAARD,K.TEILUM,O.MIRZA,O.MATTSSON,M.PETERSEN, JRNL AUTH 2 K.G.WELINDER,J.MUNDY,M.GAJHEDE,A.HENRIKSEN JRNL TITL ARABIDOPSIS ATP A2 PEROXIDASE. EXPRESSION AND JRNL TITL 2 HIGH-RESOLUTION STRUCTURE OF A PLANT PEROXIDASE WITH JRNL TITL 3 IMPLICATIONS FOR LIGNIFICATION. JRNL REF PLANT MOL.BIOL. V. 44 231 2000 JRNL REFN ISSN 0167-4412 JRNL PMID 11117266 JRNL DOI 10.1023/A:1006442618860

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH L.OSTERGAARD,A.K.ABELSKOV,O.MATTSSON,K.G.WELINDER REMARK 1 TITL STRUCTURE AND ORGAN SPECIFICITY OF AN ANIONIC PEROXIDASE REMARK 1 TITL 2 FROM ARABIDOPSIS THALIANA CELL SUSPENSION CULTURE REMARK 1 REF FEBS LETT. V. 398 243 1996 REMARK 1 REFN ISSN 0014-5793 REMARK 1 DOI 10.1016/S0014-5793(96)01244-6

REMARK 2 REMARK 2 RESOLUTION. 1.45 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : SHELXL-96 REMARK 3 AUTHORS : G.M.SHELDRICK REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.45 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 99.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.0 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) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : 0.148 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.189 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : 2259 REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 43009 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)) : 0.140 REMARK 3 FREE R VALUE (F>4SIG(F)) : 0.180 REMARK 3 FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT (F>4SIG(F)) : 2019 REMARK 3 TOTAL NUMBER OF REFLECTIONS (F>4SIG(F)) : 38159 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2249 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 46 REMARK 3 SOLVENT ATOMS : 471 REMARK 3 REMARK 3 MODEL REFINEMENT. REMARK 3 OCCUPANCY SUM OF NON-HYDROGEN ATOMS : 2775.00 REMARK 3 OCCUPANCY SUM OF HYDROGEN ATOMS : 2187.00 REMARK 3 NUMBER OF DISCRETELY DISORDERED RESIDUES : 29 REMARK 3 NUMBER OF LEAST-SQUARES PARAMETERS : 11562 REMARK 3 NUMBER OF RESTRAINTS : 9824 REMARK 3 REMARK 3 RMS DEVIATIONS FROM RESTRAINT TARGET VALUES. REMARK 3 BOND LENGTHS (A) : 0.009 REMARK 3 ANGLE DISTANCES (A) : 0.024 REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.008 REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : 0.051 REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : 0.053 REMARK 3 ANTI-BUMPING DISTANCE RESTRAINTS (A) : NULL 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: MOEWS & KRETSINGER, J.MOL.BIOL.91(1973)201-2 REMARK 3 REMARK 3 STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER REMARK 3 SPECIAL CASE: NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1PA2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-MAY-99. REMARK 100 THE RCSB ID CODE IS RCSB001082.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-MAY-98 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : MAX II REMARK 200 BEAMLINE : I711 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.970 REMARK 200 MONOCHROMATOR : SI(111) REMARK 200 OPTICS : VERTICALLY FOCUSING CYLINDRICAL REMARK 200 MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 49745 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.450 REMARK 200 RESOLUTION RANGE LOW (A) : 99.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 5.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05800 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 19.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.45 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.51 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.00 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.20200 REMARK 200 <I/SIGMA(I)> FOR SHELL : 8.400 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: 1ATJ REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.99 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.16 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.5

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 23.07800 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 40.22300 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.29850 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 40.22300 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.07800 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.29850 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 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: 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 ASN A 181 OE1 GLN A 244 1.88 REMARK 500 OD1 ASN A 78 O HOH A 681 2.07 REMARK 500 NZ LYS A 84 O VAL A 95 2.08 REMARK 500 O ASP A 57 O HOH A 682 2.09 REMARK 500 O HOH A 496 O HOH A 624 2.12 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 723 O HOH A 738 2465 2.13 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 ARG A 31 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 ARG A 38 NE - CZ - NH2 ANGL. DEV. = -4.2 DEGREES REMARK 500 ARG A 175 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 ARG A 296 NE - CZ - NH1 ANGL. DEV. = -3.8 DEGREES 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 SER A 73 -65.36 -152.31 REMARK 500 PHE A 184 -58.87 -128.42 REMARK 500 SER A 286 61.37 33.75 REMARK 500 REMARK 500 REMARK: NULL

REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 554 DISTANCE = 5.35 ANGSTROMS REMARK 525 HOH A 649 DISTANCE = 6.24 ANGSTROMS REMARK 525 HOH A 692 DISTANCE = 5.09 ANGSTROMS

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 306 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 169 NE2 REMARK 620 2 HEM A 306 NA 96.8 REMARK 620 3 HEM A 306 NB 91.9 89.5 REMARK 620 4 HEM A 306 NC 94.2 169.0 90.0 REMARK 620 5 HEM A 306 ND 92.9 91.2 175.0 88.4 REMARK 620 6 HOH A 605 O 176.0 80.9 84.8 88.0 90.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 307 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 46 O REMARK 620 2 GLY A 48 O 83.1 REMARK 620 3 ASP A 50 OD1 112.8 75.8 REMARK 620 4 SER A 52 OG 95.7 146.8 74.2 REMARK 620 5 HOH A 591 O 88.0 143.9 139.1 68.8 REMARK 620 6 ASP A 43 OD1 159.5 87.3 82.0 102.2 89.2 REMARK 620 7 ASP A 43 O 80.5 69.1 140.6 143.7 75.0 79.2 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 308 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 THR A 224 O REMARK 620 2 ASP A 229 OD1 140.4 REMARK 620 3 ALA A 227 O 95.1 81.3 REMARK 620 4 THR A 224 OG1 69.8 72.2 100.8 REMARK 620 5 ASP A 221 OD2 85.1 103.6 172.1 86.7 REMARK 620 6 THR A 170 OG1 152.7 66.9 89.1 135.8 87.1 REMARK 620 7 THR A 170 O 80.5 137.8 85.6 149.9 86.6 73.0 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 309 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 762 O REMARK 620 2 HOH A 749 O 91.3 REMARK 620 3 HOH A 748 O 92.3 85.5 REMARK 620 4 HOH A 563 O 95.0 97.8 172.0 REMARK 620 5 HOH A 483 O 173.3 95.1 90.4 82.0 REMARK 620 N 1 2 3 4

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 307 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 308 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 309 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 306

DBREF 1PA2 A 1 305 UNP Q42578 PER53_ARATH 1 305

SEQADV 1PA2 MET A 0 UNP Q42578 CLONING ARTIFACT

SEQRES 1 A 306 MET GLN LEU ASN ALA THR PHE TYR SER GLY THR CYS PRO SEQRES 2 A 306 ASN ALA SER ALA ILE VAL ARG SER THR ILE GLN GLN ALA SEQRES 3 A 306 LEU GLN SER ASP THR ARG ILE GLY ALA SER LEU ILE ARG SEQRES 4 A 306 LEU HIS PHE HIS ASP CYS PHE VAL ASN GLY CYS ASP ALA SEQRES 5 A 306 SER ILE LEU LEU ASP ASP THR GLY SER ILE GLN SER GLU SEQRES 6 A 306 LYS ASN ALA GLY PRO ASN VAL ASN SER ALA ARG GLY PHE SEQRES 7 A 306 ASN VAL VAL ASP ASN ILE LYS THR ALA LEU GLU ASN ALA SEQRES 8 A 306 CYS PRO GLY VAL VAL SER CYS SER ASP VAL LEU ALA LEU SEQRES 9 A 306 ALA SER GLU ALA SER VAL SER LEU ALA GLY GLY PRO SER SEQRES 10 A 306 TRP THR VAL LEU LEU GLY ARG ARG ASP SER LEU THR ALA SEQRES 11 A 306 ASN LEU ALA GLY ALA ASN SER SER ILE PRO SER PRO ILE SEQRES 12 A 306 GLU SER LEU SER ASN ILE THR PHE LYS PHE SER ALA VAL SEQRES 13 A 306 GLY LEU ASN THR ASN ASP LEU VAL ALA LEU SER GLY ALA SEQRES 14 A 306 HIS THR PHE GLY ARG ALA ARG CYS GLY VAL PHE ASN ASN SEQRES 15 A 306 ARG LEU PHE ASN PHE SER GLY THR GLY ASN PRO ASP PRO SEQRES 16 A 306 THR LEU ASN SER THR LEU LEU SER THR LEU GLN GLN LEU SEQRES 17 A 306 CYS PRO GLN ASN GLY SER ALA SER THR ILE THR ASN LEU SEQRES 18 A 306 ASP LEU SER THR PRO ASP ALA PHE ASP ASN ASN TYR PHE SEQRES 19 A 306 ALA ASN LEU GLN SER ASN ASP GLY LEU LEU GLN SER ASP SEQRES 20 A 306 GLN GLU LEU PHE SER THR THR GLY SER SER THR ILE ALA SEQRES 21 A 306 ILE VAL THR SER PHE ALA SER ASN GLN THR LEU PHE PHE SEQRES 22 A 306 GLN ALA PHE ALA GLN SER MET ILE ASN MET GLY ASN ILE SEQRES 23 A 306 SER PRO LEU THR GLY SER ASN GLY GLU ILE ARG LEU ASP SEQRES 24 A 306 CYS LYS LYS VAL ASN GLY SER

HET CA A 307 1 HET CA A 308 1 HET MG A 309 1 HET HEM A 306 43

HETNAM CA CALCIUM ION HETNAM MG MAGNESIUM ION HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE

HETSYN HEM HEME

FORMUL 2 CA 2(CA 2+) FORMUL 4 MG MG 2+ FORMUL 5 HEM C34 H32 FE N4 O4 FORMUL 6 HOH *471(H2 O)

HELIX 1 1 ASN A 13 GLN A 27 1 15 HELIX 2 2 ARG A 31 PHE A 45 1 15 HELIX 3 3 ALA A 51 LEU A 55 5 5 HELIX 4 4 SER A 63 ALA A 67 5 5 HELIX 5 5 GLY A 76 CYS A 91 1 16 HELIX 6 6 SER A 96 ALA A 112 1 17 HELIX 7 7 ASN A 130 ILE A 138 1 9 HELIX 8 8 SER A 144 VAL A 155 1 12 HELIX 9 9 ASN A 158 GLY A 167 1 10 HELIX 10 10 ALA A 168 PHE A 171 5 4 HELIX 11 11 GLY A 177 LEU A 183 5 7 HELIX 12 12 ASN A 185 THR A 189 5 5 HELIX 13 13 ASN A 197 CYS A 208 1 12 HELIX 14 14 ASN A 230 SER A 238 1 9 HELIX 15 15 LEU A 243 THR A 252 1 10 HELIX 16 16 SER A 256 ASN A 267 1 12 HELIX 17 17 ASN A 267 ASN A 284 1 18

SHEET 1 A 2 ARG A 173 ARG A 175 0 SHEET 2 A 2 ILE A 217 ASN A 219 -1 N THR A 218 O ALA A 174

SSBOND 1 CYS A 11 CYS A 91 1555 1555 2.03 SSBOND 2 CYS A 44 CYS A 49 1555 1555 2.06 SSBOND 3 CYS A 97 CYS A 299 1555 1555 2.07 SSBOND 4 CYS A 176 CYS A 208 1555 1555 2.00

LINK FE HEM A 306 NE2 HIS A 169 1555 1555 2.05 LINK FE HEM A 306 O HOH A 605 1555 1555 2.08 LINK CA CA A 307 O VAL A 46 1555 1555 2.25 LINK CA CA A 307 O GLY A 48 1555 1555 2.51 LINK CA CA A 307 OD1 ASP A 50 1555 1555 2.37 LINK CA CA A 307 OG SER A 52 1555 1555 2.46 LINK CA CA A 307 O HOH A 591 1555 1555 2.45 LINK CA CA A 307 OD1 ASP A 43 1555 1555 2.32 LINK CA CA A 307 O ASP A 43 1555 1555 2.43 LINK CA CA A 308 O THR A 224 1555 1555 2.45 LINK CA CA A 308 OD1 ASP A 229 1555 1555 2.46 LINK CA CA A 308 O ALA A 227 1555 1555 2.37 LINK CA CA A 308 OG1 THR A 224 1555 1555 2.43 LINK CA CA A 308 OD2 ASP A 221 1555 1555 2.28 LINK CA CA A 308 OG1 THR A 170 1555 1555 2.50 LINK CA CA A 308 O THR A 170 1555 1555 2.36 LINK MG MG A 309 O HOH A 762 1555 1555 2.05 LINK MG MG A 309 O HOH A 749 1555 1555 1.87 LINK MG MG A 309 O HOH A 748 1555 1555 2.17 LINK MG MG A 309 O HOH A 563 1555 1455 2.00 LINK MG MG A 309 O HOH A 483 1555 1455 2.37

SITE 1 AC1 6 ASP A 43 VAL A 46 GLY A 48 ASP A 50 SITE 2 AC1 6 SER A 52 HOH A 591 SITE 1 AC2 5 THR A 170 ASP A 221 THR A 224 ALA A 227 SITE 2 AC2 5 ASP A 229 SITE 1 AC3 5 HOH A 483 HOH A 563 HOH A 748 HOH A 749 SITE 2 AC3 5 HOH A 762 SITE 1 AC4 24 ARG A 31 ALA A 34 SER A 35 ARG A 38 SITE 2 AC4 24 PHE A 41 SER A 73 PRO A 139 SER A 140 SITE 3 AC4 24 PRO A 141 PHE A 152 LEU A 162 LEU A 165 SITE 4 AC4 24 SER A 166 ALA A 168 HIS A 169 GLY A 172 SITE 5 AC4 24 ARG A 173 ALA A 174 ARG A 175 SER A 245 SITE 6 AC4 24 HOH A 353 HOH A 356 HOH A 605 HOH A 633

CRYST1 46.156 74.597 80.446 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 0.021666 0.000000 0.000000 0.00000

SCALE2 0.000000 0.013405 0.000000 0.00000

SCALE3 0.000000 0.000000 0.012431 0.00000