1AC4 - Header Asymmetric Unit

HEADER OXIDOREDUCTASE 12-FEB-97 1AC4

TITLE VARIATION IN THE STRENGTH OF A CH TO O HYDROGEN BOND IN AN TITLE 2 ARTIFICIAL PROTEIN CAVITY (2,3,4-TRIMETHYL-1,3-THIAZOLE)

COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME C PEROXIDASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CCP/W191G; COMPND 5 EC: 1.11.1.5; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES; COMPND 8 OTHER_DETAILS: CRYSTAL FORM MKT

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE; SOURCE 3 ORGANISM_COMMON: BAKER'S YEAST; SOURCE 4 ORGANISM_TAXID: 4932; SOURCE 5 CELL_LINE: BL21; SOURCE 6 ORGANELLE: MITOCHONDRIA; SOURCE 7 GENE: CCP; SOURCE 8 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 10 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3); SOURCE 11 EXPRESSION_SYSTEM_CELLULAR_LOCATION: CYTOPLASM; SOURCE 12 EXPRESSION_SYSTEM_PLASMID: PT7CCP; SOURCE 13 EXPRESSION_SYSTEM_GENE: CCP (MKT)

KEYWDS OXIDOREDUCTASE, PEROXIDASE, TRANSIT PEPTIDE

EXPDTA X-RAY DIFFRACTION

AUTHOR R.A.MUSAH,G.M.JENSEN,S.W.BUNTE,R.ROSENFELD,D.E.MCREE, AUTHOR 2 D.B.GOODIN

REVDAT 3 24-FEB-09 1AC4 1 VERSN REVDAT 2 01-APR-03 1AC4 1 JRNL REVDAT 1 04-SEP-97 1AC4 0

JRNL AUTH M.M.FITZGERALD,R.A.MUSAH,D.E.MCREE,D.B.GOODIN JRNL TITL VARIATION IN STRENGTH OF AN UNCONVENTIONAL C-H TO JRNL TITL 2 O HYDROGEN BOND IN AN ENGINEERED PROTEIN CAVITY JRNL REF J.AM.CHEM.SOC. V. 119 626 1997 JRNL REFN ISSN 0002-7863

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.M.FITZGERALD,M.J.CHURCHILL,D.E.MCREE,D.B.GOODIN REMARK 1 TITL SMALL MOLECULE BINDING TO AN ARTIFICIALLY CREATED REMARK 1 TITL 2 CAVITY AT THE ACTIVE SITE OF CYTOCHROME C REMARK 1 TITL 3 PEROXIDASE REMARK 1 REF BIOCHEMISTRY V. 33 3807 1994 REMARK 1 REFN ISSN 0006-2960 REMARK 1 REFERENCE 2 REMARK 1 AUTH D.B.GOODIN,D.E.MCREE REMARK 1 TITL THE ASP-HIS-FE TRIAD OF CYTOCHROME C PEROXIDASE REMARK 1 TITL 2 CONTROLS THE REDUCTION POTENTIAL, ELECTRONIC REMARK 1 TITL 3 STRUCTURE, AND COUPLING OF THE TRYPTOPHAN FREE REMARK 1 TITL 4 RADICAL TO THE HEME REMARK 1 REF BIOCHEMISTRY V. 32 3313 1993 REMARK 1 REFN ISSN 0006-2960

REMARK 2 REMARK 2 RESOLUTION. 2.10 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : XTALVIEW REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 7.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 10000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.5000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 79.0 REMARK 3 NUMBER OF REFLECTIONS : 19099 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : NULL REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 2841 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 51 REMARK 3 SOLVENT ATOMS : 49 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) : NULL REMARK 3 BOND ANGLES (DEGREES) : NULL REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 1AC4 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JUN-96 REMARK 200 TEMPERATURE (KELVIN) : 290 REMARK 200 PH : 6.0 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XENGEN REMARK 200 DATA SCALING SOFTWARE : XENGEN REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 19477 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.0 REMARK 200 DATA REDUNDANCY : 1.800 REMARK 200 R MERGE (I) : 0.05500 REMARK 200 R SYM (I) : 0.04800 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 18.1600 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.03 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.19 REMARK 200 COMPLETENESS FOR SHELL (%) : 58.0 REMARK 200 DATA REDUNDANCY IN SHELL : 1.60 REMARK 200 R MERGE FOR SHELL (I) : 0.12000 REMARK 200 R SYM FOR SHELL (I) : 0.24000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.800 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: XTALVIEW REMARK 200 STARTING MODEL: PDB ENTRY 1CMQ REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 61.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% MPD, 40 MM PHOSPHATE PH 6.0. A REMARK 280 SINGLE CRYSTAL OF W191G WAS SOAKED IN 50MM 2,3,4- REMARK 280 TRIMETHYLTHIAZOLE IN 40% MPD AND 60 MM PHOSPHATE AT PH 4.5.

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 52.60000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 22.70000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 37.15000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 22.70000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 52.60000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 37.15000 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 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 MET A 1 REMARK 465 LYS A 2 REMARK 465 THR A 3

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 LYS A 12 NZ REMARK 470 LYS A 260 NZ

REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 HIS A 60 NE2 HIS A 60 CD2 -0.071 REMARK 500 HIS A 96 NE2 HIS A 96 CD2 -0.069 REMARK 500 HIS A 175 NE2 HIS A 175 CD2 -0.068 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 - NH1 ANGL. DEV. = 4.7 DEGREES REMARK 500 ARG A 31 NE - CZ - NH2 ANGL. DEV. = -6.6 DEGREES REMARK 500 ARG A 48 NE - CZ - NH1 ANGL. DEV. = 5.4 DEGREES REMARK 500 TRP A 51 CD1 - CG - CD2 ANGL. DEV. = 6.6 DEGREES REMARK 500 TRP A 51 CE2 - CD2 - CG ANGL. DEV. = -5.7 DEGREES REMARK 500 TRP A 57 CD1 - CG - CD2 ANGL. DEV. = 5.2 DEGREES REMARK 500 TRP A 57 CE2 - CD2 - CG ANGL. DEV. = -6.0 DEGREES REMARK 500 TRP A 101 CD1 - CG - CD2 ANGL. DEV. = 6.1 DEGREES REMARK 500 TRP A 101 CE2 - CD2 - CG ANGL. DEV. = -5.6 DEGREES REMARK 500 TRP A 126 CD1 - CG - CD2 ANGL. DEV. = 5.5 DEGREES REMARK 500 TRP A 126 CE2 - CD2 - CG ANGL. DEV. = -6.1 DEGREES REMARK 500 ARG A 127 NE - CZ - NH1 ANGL. DEV. = 4.2 DEGREES REMARK 500 ARG A 127 NE - CZ - NH2 ANGL. DEV. = -4.9 DEGREES REMARK 500 ARG A 143 NE - CZ - NH2 ANGL. DEV. = -4.7 DEGREES REMARK 500 MET A 163 CG - SD - CE ANGL. DEV. = -16.4 DEGREES REMARK 500 ASN A 162 CA - C - N ANGL. DEV. = -15.6 DEGREES REMARK 500 TRP A 211 CD1 - CG - CD2 ANGL. DEV. = 5.2 DEGREES REMARK 500 TRP A 211 CE2 - CD2 - CG ANGL. DEV. = -5.0 DEGREES REMARK 500 TRP A 223 CD1 - CG - CD2 ANGL. DEV. = 6.9 DEGREES REMARK 500 TRP A 223 CE2 - CD2 - CG ANGL. DEV. = -6.4 DEGREES REMARK 500 TYR A 229 CB - CG - CD2 ANGL. DEV. = -5.3 DEGREES REMARK 500 LYS A 278 CA - CB - CG ANGL. DEV. = -15.0 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 ASP A 33 45.61 -89.83 REMARK 500 ASN A 62 19.01 56.32 REMARK 500 ASP A 148 45.07 -83.11 REMARK 500 ASN A 162 66.55 10.85 REMARK 500 ASN A 196 26.21 -146.13 REMARK 500 ASN A 219 21.76 80.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A 72 0.08 SIDE_CHAIN 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 295 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 175 NE2 REMARK 620 2 HOH A 313 O 170.4 REMARK 620 N 1

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ACT REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: REMOVAL OF TRP 191 FORMS AN INTERNAL CAVITY REMARK 800 BELOW THE HEME RELATIVE TO THE ACTIVE SITE. REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 295 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TMT A 296

DBREF 1AC4 A 4 294 UNP P00431 CCPR_YEAST 71 361

SEQADV 1AC4 ILE A 53 UNP P00431 THR 120 SEE REMARK 999 SEQADV 1AC4 GLY A 152 UNP P00431 ASP 219 SEE REMARK 999 SEQADV 1AC4 GLY A 191 UNP P00431 TRP 258 ENGINEERED SEQADV 1AC4 ASP A 272 UNP P00431 ASN 339 SEE REMARK 999

SEQRES 1 A 294 MET LYS THR LEU VAL HIS VAL ALA SER VAL GLU LYS GLY SEQRES 2 A 294 ARG SER TYR GLU ASP PHE GLN LYS VAL TYR ASN ALA ILE SEQRES 3 A 294 ALA LEU LYS LEU ARG GLU ASP ASP GLU TYR ASP ASN TYR SEQRES 4 A 294 ILE GLY TYR GLY PRO VAL LEU VAL ARG LEU ALA TRP HIS SEQRES 5 A 294 ILE SER GLY THR TRP ASP LYS HIS ASP ASN THR GLY GLY SEQRES 6 A 294 SER TYR GLY GLY THR TYR ARG PHE LYS LYS GLU PHE ASN SEQRES 7 A 294 ASP PRO SER ASN ALA GLY LEU GLN ASN GLY PHE LYS PHE SEQRES 8 A 294 LEU GLU PRO ILE HIS LYS GLU PHE PRO TRP ILE SER SER SEQRES 9 A 294 GLY ASP LEU PHE SER LEU GLY GLY VAL THR ALA VAL GLN SEQRES 10 A 294 GLU MET GLN GLY PRO LYS ILE PRO TRP ARG CYS GLY ARG SEQRES 11 A 294 VAL ASP THR PRO GLU ASP THR THR PRO ASP ASN GLY ARG SEQRES 12 A 294 LEU PRO ASP ALA ASP LYS ASP ALA GLY TYR VAL ARG THR SEQRES 13 A 294 PHE PHE GLN ARG LEU ASN MET ASN ASP ARG GLU VAL VAL SEQRES 14 A 294 ALA LEU MET GLY ALA HIS ALA LEU GLY LYS THR HIS LEU SEQRES 15 A 294 LYS ASN SER GLY TYR GLU GLY PRO GLY GLY ALA ALA ASN SEQRES 16 A 294 ASN VAL PHE THR ASN GLU PHE TYR LEU ASN LEU LEU ASN SEQRES 17 A 294 GLU ASP TRP LYS LEU GLU LYS ASN ASP ALA ASN ASN GLU SEQRES 18 A 294 GLN TRP ASP SER LYS SER GLY TYR MET MET LEU PRO THR SEQRES 19 A 294 ASP TYR SER LEU ILE GLN ASP PRO LYS TYR LEU SER ILE SEQRES 20 A 294 VAL LYS GLU TYR ALA ASN ASP GLN ASP LYS PHE PHE LYS SEQRES 21 A 294 ASP PHE SER LYS ALA PHE GLU LYS LEU LEU GLU ASP GLY SEQRES 22 A 294 ILE THR PHE PRO LYS ASP ALA PRO SER PRO PHE ILE PHE SEQRES 23 A 294 LYS THR LEU GLU GLU GLN GLY LEU

HET HEM A 295 43 HET TMT A 296 8

HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM TMT 2,3,4-TRIMETHYL-1,3-THIAZOLE

HETSYN HEM HEME

FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 TMT C6 H10 N S 1+ FORMUL 4 HOH *49(H2 O)

HELIX 1 A SER A 15 ASP A 33 1 19 HELIX 2 B TYR A 42 SER A 54 1 13 HELIX 3 B1 PHE A 73 ASN A 78 1 6 HELIX 4 C GLY A 84 PHE A 99 1 16 HELIX 5 D SER A 103 MET A 119 1 17 HELIX 6 E ASP A 150 PHE A 158 1 9 HELIX 7 F ASN A 164 LEU A 177 1 14 HELIX 8 F1 HIS A 181 GLY A 186 1 6 HELIX 9 G GLU A 201 GLU A 209 1 9 HELIX 10 H LEU A 232 GLN A 240 1 9 HELIX 11 I ASP A 241 ASN A 253 1 13 HELIX 12 J GLN A 255 ASP A 272 1 18 HELIX 13 J1 THR A 288 GLY A 293 1 6

SHEET 1 A 2 TRP A 211 LYS A 215 0 SHEET 2 A 2 GLU A 221 SER A 225 -1 N ASP A 224 O LYS A 212

LINK FE HEM A 295 NE2 HIS A 175 1555 1555 2.00 LINK FE HEM A 295 O HOH A 313 1555 1555 2.02

SITE 1 ACT 3 ARG A 48 TRP A 51 HIS A 52 SITE 1 AC1 19 PRO A 44 VAL A 47 TRP A 51 PRO A 145 SITE 2 AC1 19 ASP A 146 LEU A 171 ALA A 174 HIS A 175 SITE 3 AC1 19 LEU A 177 GLY A 178 LYS A 179 HIS A 181 SITE 4 AC1 19 ASN A 184 SER A 185 TMT A 296 HOH A 302 SITE 5 AC1 19 HOH A 311 HOH A 313 HOH A 314 SITE 1 AC2 9 HIS A 175 LYS A 179 THR A 180 GLY A 191 SITE 2 AC2 9 MET A 230 LEU A 232 ASP A 235 HEM A 295 SITE 3 AC2 9 HOH A 308

CRYST1 105.200 74.300 45.400 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 0.009506 0.000000 0.000000 0.00000

SCALE2 0.000000 0.013459 0.000000 0.00000

SCALE3 0.000000 0.000000 0.022026 0.00000