PDB Short entry for 1PO5 HEADER OXIDOREDUCTASE 13-JUN-03 1PO5 TITLE STRUCTURE OF MAMMALIAN CYTOCHROME P450 2B4 COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450 2B4; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CYPIIB4, P450-LM2, ISOZYME 2, P450 TYPE B0; COMPND 5 EC: 1.14.14.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ORYCTOLAGUS CUNICULUS; SOURCE 3 ORGANISM_COMMON: RABBIT; SOURCE 4 ORGANISM_TAXID: 9986; SOURCE 5 GENE: 2B4; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: TOPP3; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PKK KEYWDS OXIDOREDUCTASE, MEMBRANE PROTEIN, CYP 2B4, CYP LM2, CYTOCHROME P450, KEYWDS 2 MONOOXYGENASE EXPDTA X-RAY DIFFRACTION AUTHOR E.E.SCOTT,Y.A.HE,M.R.WESTER,M.A.WHITE,C.C.CHIN,J.R.HALPERT, AUTHOR 2 E.F.JOHNSON,C.D.STOUT REVDAT 6 16-AUG-23 1PO5 1 REMARK REVDAT 5 27-OCT-21 1PO5 1 REMARK SEQADV LINK REVDAT 4 13-JUL-11 1PO5 1 VERSN REVDAT 3 24-FEB-09 1PO5 1 VERSN REVDAT 2 18-NOV-03 1PO5 1 JRNL REVDAT 1 07-OCT-03 1PO5 0 JRNL AUTH E.E.SCOTT,Y.A.HE,M.R.WESTER,M.A.WHITE,C.C.CHIN,J.R.HALPERT, JRNL AUTH 2 E.F.JOHNSON,C.D.STOUT JRNL TITL AN OPEN CONFORMATION OF MAMMALIAN CYTOCHROME P450 2B4 AT 1.6 JRNL TITL 2 A RESOLUTION JRNL REF PROC.NATL.ACAD.SCI.USA V. 100 13196 2003 JRNL REFN ISSN 0027-8424 JRNL PMID 14563924 JRNL DOI 10.1073/PNAS.2133986100 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH E.E.SCOTT,M.SPATZENEGGER,J.R.HALPERT REMARK 1 TITL A TRUNCATION OF 2B SUBFAMILY CYTOCHROMES P450 YIELDS REMARK 1 TITL 2 INCREASED EXPRESSION LEVELS, INCREASED SOLUBILITY, AND REMARK 1 TITL 3 DECREASED AGGREGATION WHILE RETAINING FUNCTION REMARK 1 REF ARCH.BIOCHEM.BIOPHYS. V. 395 57 2001 REMARK 1 REFN ISSN 0003-9861 REMARK 1 DOI 10.1006/ABBI.2001.2574 REMARK 2 REMARK 2 RESOLUTION. 1.60 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) : 1.60 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 21.70 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.5 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) : 0.217 REMARK 3 FREE R VALUE (NO CUTOFF) : 0.289 REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 57717 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 : 3732 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 43 REMARK 3 SOLVENT ATOMS : 261 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) : NULL REMARK 3 ANGLE DISTANCES (A) : NULL REMARK 3 SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL REMARK 3 DISTANCES FROM RESTRAINT PLANES (A) : NULL REMARK 3 ZERO CHIRAL VOLUMES (A**3) : NULL REMARK 3 NON-ZERO CHIRAL VOLUMES (A**3) : NULL 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: 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 1PO5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-JUN-03. REMARK 100 THE DEPOSITION ID IS D_1000019459. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-NOV-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.5 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) : 0.98 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA, CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 57717 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.600 REMARK 200 RESOLUTION RANGE LOW (A) : 21.700 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 200 DATA REDUNDANCY : 3.400 REMARK 200 R MERGE (I) : 0.05800 REMARK 200 R SYM (I) : 0.05800 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 11.4000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.64 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.8 REMARK 200 DATA REDUNDANCY IN SHELL : 3.00 REMARK 200 R MERGE FOR SHELL (I) : 0.59100 REMARK 200 R SYM FOR SHELL (I) : 0.59100 REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CCP4 REMARK 200 STARTING MODEL: PDB ENTRY 1N6B WITH NON-IDENTICAL RESIDUES REMARK 200 TRUNCATED AT C-BETA REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.96 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.02 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: ETHANOL, SODIUM CITRATE, PH 5.5, VAPOR REMARK 280 DIFFUSION, SITTING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 66.97500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 66.97500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 28.54500 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 57.10000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 28.54500 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 57.10000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 66.97500 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 28.54500 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 57.10000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 66.97500 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 28.54500 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 57.10000 REMARK 290 SMTRY3 8 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 11260 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 37390 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -102.0 KCAL/MOL 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 BIOMT1 2 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 114.20000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 133.95000 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 A9077 LIES ON A SPECIAL POSITION. 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 20 REMARK 465 ALA A 21 REMARK 465 LYS A 22 REMARK 465 LYS A 23 REMARK 465 THR A 24 REMARK 465 SER A 25 REMARK 465 SER A 26 REMARK 465 LYS A 27 REMARK 465 HIS A 493 REMARK 465 HIS A 494 REMARK 465 HIS A 495 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 VAL A 39 C - N - CA ANGL. DEV. = 17.4 DEGREES REMARK 500 ARG A 85 NE - CZ - NH1 ANGL. DEV. = 3.2 DEGREES REMARK 500 ARG A 85 NE - CZ - NH2 ANGL. DEV. = -3.3 DEGREES REMARK 500 ARG A 158 CD - NE - CZ ANGL. DEV. = 14.0 DEGREES REMARK 500 ARG A 197 NE - CZ - NH2 ANGL. DEV. = 3.0 DEGREES REMARK 500 ARG A 232 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 ARG A 262 NE - CZ - NH1 ANGL. DEV. = -3.4 DEGREES REMARK 500 ARG A 308 CD - NE - CZ ANGL. DEV. = 8.7 DEGREES REMARK 500 ARG A 434 NE - CZ - NH1 ANGL. DEV. = -4.5 DEGREES REMARK 500 ARG A 434 NE - CZ - NH2 ANGL. DEV. = 5.0 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 VAL A 39 -21.02 71.75 REMARK 500 GLN A 45 30.12 -97.57 REMARK 500 GLN A 91 52.87 -118.39 REMARK 500 ILE A 107 73.88 -66.50 REMARK 500 TYR A 111 -94.48 68.72 REMARK 500 VAL A 113 -17.28 172.79 REMARK 500 ILE A 114 84.33 41.37 REMARK 500 PHE A 115 42.12 -107.01 REMARK 500 ALA A 116 118.81 63.16 REMARK 500 ASN A 117 86.45 -29.59 REMARK 500 PHE A 206 3.77 86.84 REMARK 500 LEU A 208 58.53 -149.89 REMARK 500 HIS A 226 -62.59 -102.07 REMARK 500 ASP A 263 -177.39 -172.41 REMARK 500 THR A 300 -64.40 -105.44 REMARK 500 SER A 334 -113.70 -85.61 REMARK 500 HIS A 335 -22.67 45.88 REMARK 500 LYS A 384 130.31 -37.94 REMARK 500 SER A 430 -167.71 68.91 REMARK 500 ARG A 434 51.78 -106.65 REMARK 500 PRO A 472 109.11 -49.74 REMARK 500 GLU A 474 98.49 78.31 REMARK 500 SER A 475 19.57 45.09 REMARK 500 VAL A 477 134.29 178.66 REMARK 500 ASN A 479 -162.70 -54.73 REMARK 500 VAL A 480 110.84 91.96 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 500 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 226 NE2 REMARK 620 2 HEM A 500 NA 90.5 REMARK 620 3 HEM A 500 NB 86.9 90.3 REMARK 620 4 HEM A 500 NC 92.4 177.1 89.9 REMARK 620 5 HEM A 500 ND 91.9 89.5 178.8 90.4 REMARK 620 6 CYS A 436 SG 175.1 93.2 89.8 83.9 91.4 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 500 REMARK 999 REMARK 999 SEQUENCE REMARK 999 AUTHORS INFORMED THAT THE GENBANK SEQUENCE REMARK 999 IS THOUGHT TO CONTAIN A SEQUENCING ERROR AT REMARK 999 RESIDUE 221. DBREF 1PO5 A 20 491 UNP P00178 CP2B4_RABIT 1 491 SEQADV 1PO5 ALA A 21 UNP P00178 GLU 2 ENGINEERED MUTATION SEQADV 1PO5 A UNP P00178 PHE 3 DELETION SEQADV 1PO5 A UNP P00178 SER 4 DELETION SEQADV 1PO5 A UNP P00178 LEU 5 DELETION SEQADV 1PO5 A UNP P00178 LEU 6 DELETION SEQADV 1PO5 A UNP P00178 LEU 7 DELETION SEQADV 1PO5 A UNP P00178 LEU 8 DELETION SEQADV 1PO5 A UNP P00178 LEU 9 DELETION SEQADV 1PO5 A UNP P00178 ALA 10 DELETION SEQADV 1PO5 A UNP P00178 PHE 11 DELETION SEQADV 1PO5 A UNP P00178 LEU 12 DELETION SEQADV 1PO5 A UNP P00178 ALA 13 DELETION SEQADV 1PO5 A UNP P00178 GLY 14 DELETION SEQADV 1PO5 A UNP P00178 LEU 15 DELETION SEQADV 1PO5 A UNP P00178 LEU 16 DELETION SEQADV 1PO5 A UNP P00178 LEU 17 DELETION SEQADV 1PO5 A UNP P00178 LEU 18 DELETION SEQADV 1PO5 A UNP P00178 LEU 19 DELETION SEQADV 1PO5 A UNP P00178 PHE 20 DELETION SEQADV 1PO5 A UNP P00178 ARG 21 DELETION SEQADV 1PO5 LYS A 22 UNP P00178 GLY 22 ENGINEERED MUTATION SEQADV 1PO5 LYS A 23 UNP P00178 HIS 23 ENGINEERED MUTATION SEQADV 1PO5 THR A 24 UNP P00178 PRO 24 ENGINEERED MUTATION SEQADV 1PO5 SER A 25 UNP P00178 LYS 25 ENGINEERED MUTATION SEQADV 1PO5 SER A 26 UNP P00178 ALA 26 ENGINEERED MUTATION SEQADV 1PO5 LYS A 27 UNP P00178 HIS 27 ENGINEERED MUTATION SEQADV 1PO5 LYS A 29 UNP P00178 ARG 29 ENGINEERED MUTATION SEQADV 1PO5 SER A 221 UNP P00178 PRO 221 SEE REMARK 999 SEQADV 1PO5 HIS A 492 UNP P00178 EXPRESSION TAG SEQADV 1PO5 HIS A 493 UNP P00178 EXPRESSION TAG SEQADV 1PO5 HIS A 494 UNP P00178 EXPRESSION TAG SEQADV 1PO5 HIS A 495 UNP P00178 EXPRESSION TAG SEQRES 1 A 476 MET ALA LYS LYS THR SER SER LYS GLY LYS LEU PRO PRO SEQRES 2 A 476 GLY PRO SER PRO LEU PRO VAL LEU GLY ASN LEU LEU GLN SEQRES 3 A 476 MET ASP ARG LYS GLY LEU LEU ARG SER PHE LEU ARG LEU SEQRES 4 A 476 ARG GLU LYS TYR GLY ASP VAL PHE THR VAL TYR LEU GLY SEQRES 5 A 476 SER ARG PRO VAL VAL VAL LEU CYS GLY THR ASP ALA ILE SEQRES 6 A 476 ARG GLU ALA LEU VAL ASP GLN ALA GLU ALA PHE SER GLY SEQRES 7 A 476 ARG GLY LYS ILE ALA VAL VAL ASP PRO ILE PHE GLN GLY SEQRES 8 A 476 TYR GLY VAL ILE PHE ALA ASN GLY GLU ARG TRP ARG ALA SEQRES 9 A 476 LEU ARG ARG PHE SER LEU ALA THR MET ARG ASP PHE GLY SEQRES 10 A 476 MET GLY LYS ARG SER VAL GLU GLU ARG ILE GLN GLU GLU SEQRES 11 A 476 ALA ARG CYS LEU VAL GLU GLU LEU ARG LYS SER LYS GLY SEQRES 12 A 476 ALA LEU LEU ASP ASN THR LEU LEU PHE HIS SER ILE THR SEQRES 13 A 476 SER ASN ILE ILE CYS SER ILE VAL PHE GLY LYS ARG PHE SEQRES 14 A 476 ASP TYR LYS ASP PRO VAL PHE LEU ARG LEU LEU ASP LEU SEQRES 15 A 476 PHE PHE GLN SER PHE SER LEU ILE SER SER PHE SER SER SEQRES 16 A 476 GLN VAL PHE GLU LEU PHE SER GLY PHE LEU LYS HIS PHE SEQRES 17 A 476 PRO GLY THR HIS ARG GLN ILE TYR ARG ASN LEU GLN GLU SEQRES 18 A 476 ILE ASN THR PHE ILE GLY GLN SER VAL GLU LYS HIS ARG SEQRES 19 A 476 ALA THR LEU ASP PRO SER ASN PRO ARG ASP PHE ILE ASP SEQRES 20 A 476 VAL TYR LEU LEU ARG MET GLU LYS ASP LYS SER ASP PRO SEQRES 21 A 476 SER SER GLU PHE HIS HIS GLN ASN LEU ILE LEU THR VAL SEQRES 22 A 476 LEU SER LEU PHE PHE ALA GLY THR GLU THR THR SER THR SEQRES 23 A 476 THR LEU ARG TYR GLY PHE LEU LEU MET LEU LYS TYR PRO SEQRES 24 A 476 HIS VAL THR GLU ARG VAL GLN LYS GLU ILE GLU GLN VAL SEQRES 25 A 476 ILE GLY SER HIS ARG PRO PRO ALA LEU ASP ASP ARG ALA SEQRES 26 A 476 LYS MET PRO TYR THR ASP ALA VAL ILE HIS GLU ILE GLN SEQRES 27 A 476 ARG LEU GLY ASP LEU ILE PRO PHE GLY VAL PRO HIS THR SEQRES 28 A 476 VAL THR LYS ASP THR GLN PHE ARG GLY TYR VAL ILE PRO SEQRES 29 A 476 LYS ASN THR GLU VAL PHE PRO VAL LEU SER SER ALA LEU SEQRES 30 A 476 HIS ASP PRO ARG TYR PHE GLU THR PRO ASN THR PHE ASN SEQRES 31 A 476 PRO GLY HIS PHE LEU ASP ALA ASN GLY ALA LEU LYS ARG SEQRES 32 A 476 ASN GLU GLY PHE MET PRO PHE SER LEU GLY LYS ARG ILE SEQRES 33 A 476 CYS LEU GLY GLU GLY ILE ALA ARG THR GLU LEU PHE LEU SEQRES 34 A 476 PHE PHE THR THR ILE LEU GLN ASN PHE SER ILE ALA SER SEQRES 35 A 476 PRO VAL PRO PRO GLU ASP ILE ASP LEU THR PRO ARG GLU SEQRES 36 A 476 SER GLY VAL GLY ASN VAL PRO PRO SER TYR GLN ILE ARG SEQRES 37 A 476 PHE LEU ALA ARG HIS HIS HIS HIS HET HEM A 500 43 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 HOH *261(H2 O) HELIX 1 1 ASN A 42 MET A 46 5 5 HELIX 2 2 GLY A 50 GLY A 63 1 14 HELIX 3 3 GLY A 80 VAL A 89 1 10 HELIX 4 4 LYS A 100 ASP A 105 5 6 HELIX 5 5 ASN A 117 PHE A 135 1 19 HELIX 6 6 GLY A 138 SER A 160 1 23 HELIX 7 7 ASN A 167 GLY A 185 1 19 HELIX 8 8 ASP A 192 PHE A 206 1 15 HELIX 9 9 PHE A 212 PHE A 220 1 9 HELIX 10 10 PHE A 220 HIS A 226 1 7 HELIX 11 11 THR A 230 ALA A 254 1 25 HELIX 12 12 ASP A 263 LYS A 276 1 14 HELIX 13 13 SER A 281 TYR A 317 1 37 HELIX 14 14 TYR A 317 ILE A 332 1 16 HELIX 15 15 ALA A 339 LYS A 345 5 7 HELIX 16 16 MET A 346 ASP A 361 1 16 HELIX 17 17 VAL A 391 HIS A 397 1 7 HELIX 18 18 ASN A 409 LEU A 414 5 6 HELIX 19 19 GLY A 438 ASN A 456 1 19 HELIX 20 20 PRO A 464 ILE A 468 5 5 SHEET 1 A 5 VAL A 65 LEU A 70 0 SHEET 2 A 5 ARG A 73 LEU A 78 -1 O VAL A 77 N PHE A 66 SHEET 3 A 5 GLU A 387 PRO A 390 1 O PHE A 389 N LEU A 78 SHEET 4 A 5 HIS A 369 THR A 370 -1 N HIS A 369 O VAL A 388 SHEET 5 A 5 GLY A 97 ARG A 98 -1 N GLY A 97 O THR A 370 SHEET 1 B 2 THR A 375 PHE A 377 0 SHEET 2 B 2 TYR A 380 ILE A 382 -1 O ILE A 382 N THR A 375 SHEET 1 C 2 PHE A 457 ALA A 460 0 SHEET 2 C 2 ARG A 487 ALA A 490 -1 O LEU A 489 N SER A 458 LINK NE2 HIS A 226 FE HEM A 500 4566 1555 2.07 LINK SG CYS A 436 FE HEM A 500 1555 1555 2.28 CISPEP 1 PHE A 227 PRO A 228 0 2.67 CISPEP 2 VAL A 477 GLY A 478 0 8.31 SITE 1 AC1 21 ARG A 98 HIS A 226 PHE A 227 ALA A 298 SITE 2 AC1 21 GLY A 299 THR A 302 THR A 303 THR A 306 SITE 3 AC1 21 GLN A 357 VAL A 367 HIS A 369 LEU A 392 SITE 4 AC1 21 PRO A 428 PHE A 429 SER A 430 ARG A 434 SITE 5 AC1 21 CYS A 436 GLY A 438 HOH A9028 HOH A9033 SITE 6 AC1 21 HOH A9080 CRYST1 57.090 114.200 133.950 90.00 90.00 90.00 C 2 2 21 8 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 0.017516 0.000000 0.000000 0.00000 SCALE2 0.000000 0.008757 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007465 0.00000