PDB Short entry for 4EJJ HEADER OXIDOREDUCTASE 06-APR-12 4EJJ TITLE HUMAN CYTOCHROME P450 2A6 IN COMPLEX WITH NICOTINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYTOCHROME P450 2A6; COMPND 3 CHAIN: A, B, C, D; COMPND 4 FRAGMENT: UNP RESIDUES 30-494; COMPND 5 SYNONYM: CYPIIA6, COUMARIN 7-HYDROXYLASE, CYTOCHROME P450 IIA3, COMPND 6 CYTOCHROME P450(I); COMPND 7 EC: 1.14.14.1; COMPND 8 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: CYP2A3, CYP2A6; 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: PKK2A6DH KEYWDS CYTOCHROME P450 2A6, P450 2A6, HEME PROTEIN, MONOXYGENASE, DRUG KEYWDS 2 METABOLISM, XENOBIOTIC METABOLISM, ENDOPLASMIC RETICULUM, MEMBRANE, KEYWDS 3 OXIDOREDUCTASE EXPDTA X-RAY DIFFRACTION AUTHOR N.M.DEVORE,E.E.SCOTT REVDAT 4 13-SEP-23 4EJJ 1 REMARK SEQADV HETSYN LINK REVDAT 3 15-NOV-17 4EJJ 1 REMARK REVDAT 2 02-JAN-13 4EJJ 1 JRNL REVDAT 1 06-JUN-12 4EJJ 0 JRNL AUTH N.M.DEVORE,E.E.SCOTT JRNL TITL NICOTINE AND 4-(METHYLNITROSAMINO)-1-(3-PYRIDYL)-1-BUTANONE JRNL TITL 2 BINDING AND ACCESS CHANNEL IN HUMAN CYTOCHROME P450 2A6 AND JRNL TITL 3 2A13 ENZYMES. JRNL REF J.BIOL.CHEM. V. 287 26576 2012 JRNL REFN ISSN 0021-9258 JRNL PMID 22700965 JRNL DOI 10.1074/JBC.M112.372813 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 6.1.13 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 97.02 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 3 NUMBER OF REFLECTIONS : 100359 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 + TEST SET) : 0.206 REMARK 3 R VALUE (WORKING SET) : 0.203 REMARK 3 FREE R VALUE : 0.264 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 5273 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 15013 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 220 REMARK 3 SOLVENT ATOMS : 138 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 41.20 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) : 0.01000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.300 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.242 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.174 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 7.174 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : NULL ; NULL REMARK 3 ANGLE DISTANCE (A) : NULL ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 4EJJ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-APR-12. REMARK 100 THE DEPOSITION ID IS D_1000071697. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-JAN-12 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 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 MONOCHROMATOR REMARK 200 OPTICS : RH COATED FLAT MIRROR, TOROIDAL REMARK 200 FOCUSING MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 325 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 105683 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 97.020 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 3.900 REMARK 200 R MERGE (I) : 0.08000 REMARK 200 R SYM (I) : 0.09300 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 11.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.36 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 3.90 REMARK 200 R MERGE FOR SHELL (I) : 0.71200 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER MR REMARK 200 STARTING MODEL: CYP2A6 PDB ENTRY 2FDV REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.78 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 30% PEG 3350, 0.175 M TRIS, AND 0.2 M REMARK 280 AMMONIUM SULFATE, PH 8.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K 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 97.01900 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, 3, 4 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 350 REMARK 350 BIOMOLECULE: 3 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: C 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: 4 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: D 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 23 REMARK 465 ALA A 24 REMARK 465 LYS A 25 REMARK 465 LYS A 26 REMARK 465 THR A 27 REMARK 465 SER A 28 REMARK 465 SER A 29 REMARK 465 HIS A 495 REMARK 465 HIS A 496 REMARK 465 HIS A 497 REMARK 465 HIS A 498 REMARK 465 MET B 23 REMARK 465 ALA B 24 REMARK 465 LYS B 25 REMARK 465 LYS B 26 REMARK 465 THR B 27 REMARK 465 SER B 28 REMARK 465 SER B 29 REMARK 465 LYS B 30 REMARK 465 HIS B 495 REMARK 465 HIS B 496 REMARK 465 HIS B 497 REMARK 465 HIS B 498 REMARK 465 MET C 23 REMARK 465 ALA C 24 REMARK 465 LYS C 25 REMARK 465 LYS C 26 REMARK 465 THR C 27 REMARK 465 SER C 28 REMARK 465 SER C 29 REMARK 465 LYS C 30 REMARK 465 HIS C 495 REMARK 465 HIS C 496 REMARK 465 HIS C 497 REMARK 465 HIS C 498 REMARK 465 MET D 23 REMARK 465 ALA D 24 REMARK 465 LYS D 25 REMARK 465 LYS D 26 REMARK 465 THR D 27 REMARK 465 SER D 28 REMARK 465 SER D 29 REMARK 465 LYS D 30 REMARK 465 HIS D 495 REMARK 465 HIS D 496 REMARK 465 HIS D 497 REMARK 465 HIS D 498 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 PHE A 42 -59.62 71.36 REMARK 500 VAL A 92 -69.08 -100.33 REMARK 500 GLN A 94 50.41 -119.15 REMARK 500 ASP A 195 115.44 -13.40 REMARK 500 ILE A 366 77.38 -115.45 REMARK 500 SER A 369 -161.15 50.12 REMARK 500 SER A 433 -157.23 62.49 REMARK 500 ARG A 485 150.40 -48.99 REMARK 500 PHE B 42 -64.81 68.76 REMARK 500 GLN B 48 35.37 -99.24 REMARK 500 ALA B 90 -71.88 -74.89 REMARK 500 PRO B 261 -8.74 -59.81 REMARK 500 THR B 303 -63.99 -96.79 REMARK 500 ILE B 366 79.11 -115.66 REMARK 500 SER B 369 -158.83 57.39 REMARK 500 LYS B 387 135.18 -36.98 REMARK 500 ASN B 418 -152.75 -91.48 REMARK 500 SER B 433 -168.51 56.53 REMARK 500 LEU C 33 145.69 -30.17 REMARK 500 PHE C 42 -60.83 71.74 REMARK 500 GLN C 53 58.58 -146.64 REMARK 500 VAL C 181 -74.45 -62.71 REMARK 500 GLU C 277 7.44 -64.47 REMARK 500 THR C 303 -70.62 -96.47 REMARK 500 HIS C 320 78.07 -116.82 REMARK 500 MET C 349 71.68 -115.37 REMARK 500 SER C 369 -153.33 59.67 REMARK 500 ASP C 377 114.99 -38.45 REMARK 500 ASP C 382 -7.49 92.64 REMARK 500 LYS C 387 123.70 -31.06 REMARK 500 LYS C 425 151.61 -43.65 REMARK 500 VAL C 430 43.29 -145.95 REMARK 500 SER C 433 -175.63 70.00 REMARK 500 PRO C 468 -48.81 -29.81 REMARK 500 PHE D 42 -56.65 68.00 REMARK 500 PHE D 198 -72.06 -47.56 REMARK 500 THR D 303 -63.96 -94.63 REMARK 500 ASN D 338 -78.02 -74.89 REMARK 500 ILE D 366 79.79 -110.70 REMARK 500 SER D 369 -162.82 57.77 REMARK 500 ASP D 382 18.98 56.95 REMARK 500 LYS D 387 125.89 -33.81 REMARK 500 ASN D 418 -162.45 -69.96 REMARK 500 LYS D 420 1.54 -66.99 REMARK 500 SER D 433 -164.92 57.27 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 CYS A 439 SG REMARK 620 2 HEM A 500 NA 101.4 REMARK 620 3 HEM A 500 NB 90.2 88.8 REMARK 620 4 HEM A 500 NC 82.4 176.0 92.3 REMARK 620 5 HEM A 500 ND 93.2 91.2 176.5 87.5 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 500 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 439 SG REMARK 620 2 HEM B 500 NA 98.2 REMARK 620 3 HEM B 500 NB 87.9 86.7 REMARK 620 4 HEM B 500 NC 84.9 176.9 94.1 REMARK 620 5 HEM B 500 ND 93.3 92.6 178.6 86.6 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM C 500 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS C 439 SG REMARK 620 2 HEM C 500 NA 96.1 REMARK 620 3 HEM C 500 NB 90.6 92.4 REMARK 620 4 HEM C 500 NC 84.0 178.7 88.9 REMARK 620 5 HEM C 500 ND 90.3 88.0 179.0 90.7 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM D 502 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS D 439 SG REMARK 620 2 HEM D 502 NA 98.7 REMARK 620 3 HEM D 502 NB 88.5 88.1 REMARK 620 4 HEM D 502 NC 82.6 178.7 91.9 REMARK 620 5 HEM D 502 ND 92.7 91.6 178.7 88.3 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 HEM A 500 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCT A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 500 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCT B 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM C 500 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCT C 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCT D 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM D 502 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3T3R RELATED DB: PDB REMARK 900 HUMAN CYTOCHROME P450 2A6 IN COMPLEX WITH PILOCARPINE REMARK 900 RELATED ID: 3EBS RELATED DB: PDB REMARK 900 HUMAN CYTOCHROME P450 2A6 I208S/I300F/G301A/S369G IN COMPLEX WITH REMARK 900 PHENACETIN REMARK 900 RELATED ID: 2FDY RELATED DB: PDB REMARK 900 MICROSOMAL P450 2A6 WITH THE INHIBITOR ADRITHIOL BOUND REMARK 900 RELATED ID: 1Z11 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF HUMAN MICROSOMAL P450 2A6 WITH METHOXSALEN REMARK 900 BOUND REMARK 900 RELATED ID: 1Z10 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF HUMAN MICROSOMAL P450 2A6 WITH COUMARIN BOUND REMARK 900 RELATED ID: 2FDU RELATED DB: PDB REMARK 900 MICROSOMAL P450 2A6 WITH THE INHIBITOR N,N-DIMETHYL(5-(OYRIDIN-3-YL) REMARK 900 FURAN-2-YL)METHANAMINE BOUND REMARK 900 RELATED ID: 2FDV RELATED DB: PDB REMARK 900 MICROSOMAL P450 2A6 WITH THE INHIBITOR N-METHYL(5-(PYRIDIN-3-YL) REMARK 900 FURAN-2-YL)METHANAMINE BOUND REMARK 900 RELATED ID: 2PG7 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF HUMAN MICROSOMAL P450 2A6 N297Q/I300V REMARK 900 RELATED ID: 2PG6 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF HUMAN MICROSOMAL P450 2A6 L240C/N297Q REMARK 900 RELATED ID: 2PG5 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF HUMAN MICROSOMAL P450 2A6 N297Q REMARK 900 RELATED ID: 2FDW RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF HUMAN MICROSOMAL P450 2A6 WITH THE INHIBITOR REMARK 900 (5-(PYRIDIN-3-YL)FURAN-2-YL)METHANAMINE BOUND REMARK 900 RELATED ID: 4EJG RELATED DB: PDB REMARK 900 RELATED ID: 4EJH RELATED DB: PDB REMARK 900 RELATED ID: 4EJI RELATED DB: PDB REMARK 999 REMARK 999 SEQUENCE REMARK 999 AUTHORS STATE THAT THE AMINOACID AT REMARK 999 POSITION 392 OF THE UNIPROT ENTRY P11509 SHOULD BE A TYR 2 DBREF 4EJJ A 29 494 UNP P11509 CP2A6_HUMAN 30 495 DBREF 4EJJ B 29 494 UNP P11509 CP2A6_HUMAN 30 495 DBREF 4EJJ C 29 494 UNP P11509 CP2A6_HUMAN 30 495 DBREF 4EJJ D 29 494 UNP P11509 CP2A6_HUMAN 30 495 SEQADV 4EJJ MET A 23 UNP P11509 INITIATING METHIONINE SEQADV 4EJJ ALA A 24 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS A 25 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS A 26 UNP P11509 EXPRESSION TAG SEQADV 4EJJ THR A 27 UNP P11509 EXPRESSION TAG SEQADV 4EJJ SER A 28 UNP P11509 EXPRESSION TAG SEQADV 4EJJ TYR A 392 UNP P11509 PHE 393 SEE REMARK 999 SEQADV 4EJJ HIS A 495 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS A 496 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS A 497 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS A 498 UNP P11509 EXPRESSION TAG SEQADV 4EJJ MET B 23 UNP P11509 INITIATING METHIONINE SEQADV 4EJJ ALA B 24 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS B 25 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS B 26 UNP P11509 EXPRESSION TAG SEQADV 4EJJ THR B 27 UNP P11509 EXPRESSION TAG SEQADV 4EJJ SER B 28 UNP P11509 EXPRESSION TAG SEQADV 4EJJ TYR B 392 UNP P11509 PHE 393 SEE REMARK 999 SEQADV 4EJJ HIS B 495 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS B 496 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS B 497 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS B 498 UNP P11509 EXPRESSION TAG SEQADV 4EJJ MET C 23 UNP P11509 INITIATING METHIONINE SEQADV 4EJJ ALA C 24 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS C 25 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS C 26 UNP P11509 EXPRESSION TAG SEQADV 4EJJ THR C 27 UNP P11509 EXPRESSION TAG SEQADV 4EJJ SER C 28 UNP P11509 EXPRESSION TAG SEQADV 4EJJ TYR C 392 UNP P11509 PHE 393 SEE REMARK 999 SEQADV 4EJJ HIS C 495 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS C 496 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS C 497 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS C 498 UNP P11509 EXPRESSION TAG SEQADV 4EJJ MET D 23 UNP P11509 INITIATING METHIONINE SEQADV 4EJJ ALA D 24 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS D 25 UNP P11509 EXPRESSION TAG SEQADV 4EJJ LYS D 26 UNP P11509 EXPRESSION TAG SEQADV 4EJJ THR D 27 UNP P11509 EXPRESSION TAG SEQADV 4EJJ SER D 28 UNP P11509 EXPRESSION TAG SEQADV 4EJJ TYR D 392 UNP P11509 PHE 393 SEE REMARK 999 SEQADV 4EJJ HIS D 495 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS D 496 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS D 497 UNP P11509 EXPRESSION TAG SEQADV 4EJJ HIS D 498 UNP P11509 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 THR PRO LEU PRO PHE ILE GLY ASN TYR LEU GLN SEQRES 3 A 476 LEU ASN THR GLU GLN MET TYR ASN SER LEU MET LYS ILE SEQRES 4 A 476 SER GLU ARG TYR GLY PRO VAL PHE THR ILE HIS LEU GLY SEQRES 5 A 476 PRO ARG ARG VAL VAL VAL LEU CYS GLY HIS ASP ALA VAL SEQRES 6 A 476 ARG GLU ALA LEU VAL ASP GLN ALA GLU GLU PHE SER GLY SEQRES 7 A 476 ARG GLY GLU GLN ALA THR PHE ASP TRP VAL PHE LYS GLY SEQRES 8 A 476 TYR GLY VAL VAL PHE SER ASN GLY GLU ARG ALA LYS GLN SEQRES 9 A 476 LEU ARG ARG PHE SER ILE ALA THR LEU ARG ASP PHE GLY SEQRES 10 A 476 VAL GLY LYS ARG GLY ILE GLU GLU ARG ILE GLN GLU GLU SEQRES 11 A 476 ALA GLY PHE LEU ILE ASP ALA LEU ARG GLY THR GLY GLY SEQRES 12 A 476 ALA ASN ILE ASP PRO THR PHE PHE LEU SER ARG THR VAL SEQRES 13 A 476 SER ASN VAL ILE SER SER ILE VAL PHE GLY ASP ARG PHE SEQRES 14 A 476 ASP TYR LYS ASP LYS GLU PHE LEU SER LEU LEU ARG MET SEQRES 15 A 476 MET LEU GLY ILE PHE GLN PHE THR SER THR SER THR GLY SEQRES 16 A 476 GLN LEU TYR GLU MET PHE SER SER VAL MET LYS HIS LEU SEQRES 17 A 476 PRO GLY PRO GLN GLN GLN ALA PHE GLN LEU LEU GLN GLY SEQRES 18 A 476 LEU GLU ASP PHE ILE ALA LYS LYS VAL GLU HIS ASN GLN SEQRES 19 A 476 ARG THR LEU ASP PRO ASN SER PRO ARG ASP PHE ILE ASP SEQRES 20 A 476 SER PHE LEU ILE ARG MET GLN GLU GLU GLU LYS ASN PRO SEQRES 21 A 476 ASN THR GLU PHE TYR LEU LYS ASN LEU VAL MET THR THR SEQRES 22 A 476 LEU ASN LEU PHE ILE GLY GLY THR GLU THR VAL SER THR SEQRES 23 A 476 THR LEU ARG TYR GLY PHE LEU LEU LEU MET LYS HIS PRO SEQRES 24 A 476 GLU VAL GLU ALA LYS VAL HIS GLU GLU ILE ASP ARG VAL SEQRES 25 A 476 ILE GLY LYS ASN ARG GLN PRO LYS PHE GLU ASP ARG ALA SEQRES 26 A 476 LYS MET PRO TYR MET GLU ALA VAL ILE HIS GLU ILE GLN SEQRES 27 A 476 ARG PHE GLY ASP VAL ILE PRO MET SER LEU ALA ARG ARG SEQRES 28 A 476 VAL LYS LYS ASP THR LYS PHE ARG ASP PHE PHE LEU PRO SEQRES 29 A 476 LYS GLY THR GLU VAL TYR PRO MET LEU GLY SER VAL LEU SEQRES 30 A 476 ARG ASP PRO SER PHE PHE SER ASN PRO GLN ASP PHE ASN SEQRES 31 A 476 PRO GLN HIS PHE LEU ASN GLU LYS GLY GLN PHE LYS LYS SEQRES 32 A 476 SER ASP ALA PHE VAL PRO PHE SER ILE GLY LYS ARG ASN SEQRES 33 A 476 CYS PHE GLY GLU GLY LEU ALA ARG MET GLU LEU PHE LEU SEQRES 34 A 476 PHE PHE THR THR VAL MET GLN ASN PHE ARG LEU LYS SER SEQRES 35 A 476 SER GLN SER PRO LYS ASP ILE ASP VAL SER PRO LYS HIS SEQRES 36 A 476 VAL GLY PHE ALA THR ILE PRO ARG ASN TYR THR MET SER SEQRES 37 A 476 PHE LEU PRO ARG HIS HIS HIS HIS SEQRES 1 B 476 MET ALA LYS LYS THR SER SER LYS GLY LYS LEU PRO PRO SEQRES 2 B 476 GLY PRO THR PRO LEU PRO PHE ILE GLY ASN TYR LEU GLN SEQRES 3 B 476 LEU ASN THR GLU GLN MET TYR ASN SER LEU MET LYS ILE SEQRES 4 B 476 SER GLU ARG TYR GLY PRO VAL PHE THR ILE HIS LEU GLY SEQRES 5 B 476 PRO ARG ARG VAL VAL VAL LEU CYS GLY HIS ASP ALA VAL SEQRES 6 B 476 ARG GLU ALA LEU VAL ASP GLN ALA GLU GLU PHE SER GLY SEQRES 7 B 476 ARG GLY GLU GLN ALA THR PHE ASP TRP VAL PHE LYS GLY SEQRES 8 B 476 TYR GLY VAL VAL PHE SER ASN GLY GLU ARG ALA LYS GLN SEQRES 9 B 476 LEU ARG ARG PHE SER ILE ALA THR LEU ARG ASP PHE GLY SEQRES 10 B 476 VAL GLY LYS ARG GLY ILE GLU GLU ARG ILE GLN GLU GLU SEQRES 11 B 476 ALA GLY PHE LEU ILE ASP ALA LEU ARG GLY THR GLY GLY SEQRES 12 B 476 ALA ASN ILE ASP PRO THR PHE PHE LEU SER ARG THR VAL SEQRES 13 B 476 SER ASN VAL ILE SER SER ILE VAL PHE GLY ASP ARG PHE SEQRES 14 B 476 ASP TYR LYS ASP LYS GLU PHE LEU SER LEU LEU ARG MET SEQRES 15 B 476 MET LEU GLY ILE PHE GLN PHE THR SER THR SER THR GLY SEQRES 16 B 476 GLN LEU TYR GLU MET PHE SER SER VAL MET LYS HIS LEU SEQRES 17 B 476 PRO GLY PRO GLN GLN GLN ALA PHE GLN LEU LEU GLN GLY SEQRES 18 B 476 LEU GLU ASP PHE ILE ALA LYS LYS VAL GLU HIS ASN GLN SEQRES 19 B 476 ARG THR LEU ASP PRO ASN SER PRO ARG ASP PHE ILE ASP SEQRES 20 B 476 SER PHE LEU ILE ARG MET GLN GLU GLU GLU LYS ASN PRO SEQRES 21 B 476 ASN THR GLU PHE TYR LEU LYS ASN LEU VAL MET THR THR SEQRES 22 B 476 LEU ASN LEU PHE ILE GLY GLY THR GLU THR VAL SER THR SEQRES 23 B 476 THR LEU ARG TYR GLY PHE LEU LEU LEU MET LYS HIS PRO SEQRES 24 B 476 GLU VAL GLU ALA LYS VAL HIS GLU GLU ILE ASP ARG VAL SEQRES 25 B 476 ILE GLY LYS ASN ARG GLN PRO LYS PHE GLU ASP ARG ALA SEQRES 26 B 476 LYS MET PRO TYR MET GLU ALA VAL ILE HIS GLU ILE GLN SEQRES 27 B 476 ARG PHE GLY ASP VAL ILE PRO MET SER LEU ALA ARG ARG SEQRES 28 B 476 VAL LYS LYS ASP THR LYS PHE ARG ASP PHE PHE LEU PRO SEQRES 29 B 476 LYS GLY THR GLU VAL TYR PRO MET LEU GLY SER VAL LEU SEQRES 30 B 476 ARG ASP PRO SER PHE PHE SER ASN PRO GLN ASP PHE ASN SEQRES 31 B 476 PRO GLN HIS PHE LEU ASN GLU LYS GLY GLN PHE LYS LYS SEQRES 32 B 476 SER ASP ALA PHE VAL PRO PHE SER ILE GLY LYS ARG ASN SEQRES 33 B 476 CYS PHE GLY GLU GLY LEU ALA ARG MET GLU LEU PHE LEU SEQRES 34 B 476 PHE PHE THR THR VAL MET GLN ASN PHE ARG LEU LYS SER SEQRES 35 B 476 SER GLN SER PRO LYS ASP ILE ASP VAL SER PRO LYS HIS SEQRES 36 B 476 VAL GLY PHE ALA THR ILE PRO ARG ASN TYR THR MET SER SEQRES 37 B 476 PHE LEU PRO ARG HIS HIS HIS HIS SEQRES 1 C 476 MET ALA LYS LYS THR SER SER LYS GLY LYS LEU PRO PRO SEQRES 2 C 476 GLY PRO THR PRO LEU PRO PHE ILE GLY ASN TYR LEU GLN SEQRES 3 C 476 LEU ASN THR GLU GLN MET TYR ASN SER LEU MET LYS ILE SEQRES 4 C 476 SER GLU ARG TYR GLY PRO VAL PHE THR ILE HIS LEU GLY SEQRES 5 C 476 PRO ARG ARG VAL VAL VAL LEU CYS GLY HIS ASP ALA VAL SEQRES 6 C 476 ARG GLU ALA LEU VAL ASP GLN ALA GLU GLU PHE SER GLY SEQRES 7 C 476 ARG GLY GLU GLN ALA THR PHE ASP TRP VAL PHE LYS GLY SEQRES 8 C 476 TYR GLY VAL VAL PHE SER ASN GLY GLU ARG ALA LYS GLN SEQRES 9 C 476 LEU ARG ARG PHE SER ILE ALA THR LEU ARG ASP PHE GLY SEQRES 10 C 476 VAL GLY LYS ARG GLY ILE GLU GLU ARG ILE GLN GLU GLU SEQRES 11 C 476 ALA GLY PHE LEU ILE ASP ALA LEU ARG GLY THR GLY GLY SEQRES 12 C 476 ALA ASN ILE ASP PRO THR PHE PHE LEU SER ARG THR VAL SEQRES 13 C 476 SER ASN VAL ILE SER SER ILE VAL PHE GLY ASP ARG PHE SEQRES 14 C 476 ASP TYR LYS ASP LYS GLU PHE LEU SER LEU LEU ARG MET SEQRES 15 C 476 MET LEU GLY ILE PHE GLN PHE THR SER THR SER THR GLY SEQRES 16 C 476 GLN LEU TYR GLU MET PHE SER SER VAL MET LYS HIS LEU SEQRES 17 C 476 PRO GLY PRO GLN GLN GLN ALA PHE GLN LEU LEU GLN GLY SEQRES 18 C 476 LEU GLU ASP PHE ILE ALA LYS LYS VAL GLU HIS ASN GLN SEQRES 19 C 476 ARG THR LEU ASP PRO ASN SER PRO ARG ASP PHE ILE ASP SEQRES 20 C 476 SER PHE LEU ILE ARG MET GLN GLU GLU GLU LYS ASN PRO SEQRES 21 C 476 ASN THR GLU PHE TYR LEU LYS ASN LEU VAL MET THR THR SEQRES 22 C 476 LEU ASN LEU PHE ILE GLY GLY THR GLU THR VAL SER THR SEQRES 23 C 476 THR LEU ARG TYR GLY PHE LEU LEU LEU MET LYS HIS PRO SEQRES 24 C 476 GLU VAL GLU ALA LYS VAL HIS GLU GLU ILE ASP ARG VAL SEQRES 25 C 476 ILE GLY LYS ASN ARG GLN PRO LYS PHE GLU ASP ARG ALA SEQRES 26 C 476 LYS MET PRO TYR MET GLU ALA VAL ILE HIS GLU ILE GLN SEQRES 27 C 476 ARG PHE GLY ASP VAL ILE PRO MET SER LEU ALA ARG ARG SEQRES 28 C 476 VAL LYS LYS ASP THR LYS PHE ARG ASP PHE PHE LEU PRO SEQRES 29 C 476 LYS GLY THR GLU VAL TYR PRO MET LEU GLY SER VAL LEU SEQRES 30 C 476 ARG ASP PRO SER PHE PHE SER ASN PRO GLN ASP PHE ASN SEQRES 31 C 476 PRO GLN HIS PHE LEU ASN GLU LYS GLY GLN PHE LYS LYS SEQRES 32 C 476 SER ASP ALA PHE VAL PRO PHE SER ILE GLY LYS ARG ASN SEQRES 33 C 476 CYS PHE GLY GLU GLY LEU ALA ARG MET GLU LEU PHE LEU SEQRES 34 C 476 PHE PHE THR THR VAL MET GLN ASN PHE ARG LEU LYS SER SEQRES 35 C 476 SER GLN SER PRO LYS ASP ILE ASP VAL SER PRO LYS HIS SEQRES 36 C 476 VAL GLY PHE ALA THR ILE PRO ARG ASN TYR THR MET SER SEQRES 37 C 476 PHE LEU PRO ARG HIS HIS HIS HIS SEQRES 1 D 476 MET ALA LYS LYS THR SER SER LYS GLY LYS LEU PRO PRO SEQRES 2 D 476 GLY PRO THR PRO LEU PRO PHE ILE GLY ASN TYR LEU GLN SEQRES 3 D 476 LEU ASN THR GLU GLN MET TYR ASN SER LEU MET LYS ILE SEQRES 4 D 476 SER GLU ARG TYR GLY PRO VAL PHE THR ILE HIS LEU GLY SEQRES 5 D 476 PRO ARG ARG VAL VAL VAL LEU CYS GLY HIS ASP ALA VAL SEQRES 6 D 476 ARG GLU ALA LEU VAL ASP GLN ALA GLU GLU PHE SER GLY SEQRES 7 D 476 ARG GLY GLU GLN ALA THR PHE ASP TRP VAL PHE LYS GLY SEQRES 8 D 476 TYR GLY VAL VAL PHE SER ASN GLY GLU ARG ALA LYS GLN SEQRES 9 D 476 LEU ARG ARG PHE SER ILE ALA THR LEU ARG ASP PHE GLY SEQRES 10 D 476 VAL GLY LYS ARG GLY ILE GLU GLU ARG ILE GLN GLU GLU SEQRES 11 D 476 ALA GLY PHE LEU ILE ASP ALA LEU ARG GLY THR GLY GLY SEQRES 12 D 476 ALA ASN ILE ASP PRO THR PHE PHE LEU SER ARG THR VAL SEQRES 13 D 476 SER ASN VAL ILE SER SER ILE VAL PHE GLY ASP ARG PHE SEQRES 14 D 476 ASP TYR LYS ASP LYS GLU PHE LEU SER LEU LEU ARG MET SEQRES 15 D 476 MET LEU GLY ILE PHE GLN PHE THR SER THR SER THR GLY SEQRES 16 D 476 GLN LEU TYR GLU MET PHE SER SER VAL MET LYS HIS LEU SEQRES 17 D 476 PRO GLY PRO GLN GLN GLN ALA PHE GLN LEU LEU GLN GLY SEQRES 18 D 476 LEU GLU ASP PHE ILE ALA LYS LYS VAL GLU HIS ASN GLN SEQRES 19 D 476 ARG THR LEU ASP PRO ASN SER PRO ARG ASP PHE ILE ASP SEQRES 20 D 476 SER PHE LEU ILE ARG MET GLN GLU GLU GLU LYS ASN PRO SEQRES 21 D 476 ASN THR GLU PHE TYR LEU LYS ASN LEU VAL MET THR THR SEQRES 22 D 476 LEU ASN LEU PHE ILE GLY GLY THR GLU THR VAL SER THR SEQRES 23 D 476 THR LEU ARG TYR GLY PHE LEU LEU LEU MET LYS HIS PRO SEQRES 24 D 476 GLU VAL GLU ALA LYS VAL HIS GLU GLU ILE ASP ARG VAL SEQRES 25 D 476 ILE GLY LYS ASN ARG GLN PRO LYS PHE GLU ASP ARG ALA SEQRES 26 D 476 LYS MET PRO TYR MET GLU ALA VAL ILE HIS GLU ILE GLN SEQRES 27 D 476 ARG PHE GLY ASP VAL ILE PRO MET SER LEU ALA ARG ARG SEQRES 28 D 476 VAL LYS LYS ASP THR LYS PHE ARG ASP PHE PHE LEU PRO SEQRES 29 D 476 LYS GLY THR GLU VAL TYR PRO MET LEU GLY SER VAL LEU SEQRES 30 D 476 ARG ASP PRO SER PHE PHE SER ASN PRO GLN ASP PHE ASN SEQRES 31 D 476 PRO GLN HIS PHE LEU ASN GLU LYS GLY GLN PHE LYS LYS SEQRES 32 D 476 SER ASP ALA PHE VAL PRO PHE SER ILE GLY LYS ARG ASN SEQRES 33 D 476 CYS PHE GLY GLU GLY LEU ALA ARG MET GLU LEU PHE LEU SEQRES 34 D 476 PHE PHE THR THR VAL MET GLN ASN PHE ARG LEU LYS SER SEQRES 35 D 476 SER GLN SER PRO LYS ASP ILE ASP VAL SER PRO LYS HIS SEQRES 36 D 476 VAL GLY PHE ALA THR ILE PRO ARG ASN TYR THR MET SER SEQRES 37 D 476 PHE LEU PRO ARG HIS HIS HIS HIS HET HEM A 500 43 HET NCT A 501 12 HET HEM B 500 43 HET NCT B 501 12 HET HEM C 500 43 HET NCT C 501 12 HET NCT D 501 12 HET HEM D 502 43 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NCT (S)-3-(1-METHYLPYRROLIDIN-2-YL)PYRIDINE HETSYN HEM HEME HETSYN NCT (S)-(-)-NICOTINE; 3-[(2S)-1-METHYL-2-PYRROLIDINYL] HETSYN 2 NCT PYRIDINE FORMUL 5 HEM 4(C34 H32 FE N4 O4) FORMUL 6 NCT 4(C10 H14 N2) FORMUL 13 HOH *138(H2 O) HELIX 1 1 ASN A 45 LEU A 49 5 5 HELIX 2 2 GLN A 53 GLY A 66 1 14 HELIX 3 3 CYS A 82 VAL A 92 1 11 HELIX 4 4 GLN A 104 LYS A 112 1 9 HELIX 5 5 ASN A 120 PHE A 138 1 19 HELIX 6 6 LYS A 142 GLY A 162 1 21 HELIX 7 7 PRO A 170 GLY A 188 1 19 HELIX 8 8 ASP A 195 THR A 212 1 18 HELIX 9 9 THR A 214 LYS A 228 1 15 HELIX 10 10 GLY A 232 THR A 258 1 27 HELIX 11 11 ASP A 266 GLU A 278 1 13 HELIX 12 12 TYR A 287 HIS A 320 1 34 HELIX 13 13 HIS A 320 ILE A 335 1 16 HELIX 14 14 LYS A 342 LYS A 348 5 7 HELIX 15 15 MET A 349 ASP A 364 1 16 HELIX 16 16 MET A 394 ARG A 400 1 7 HELIX 17 17 ASN A 412 LEU A 417 5 6 HELIX 18 18 GLY A 441 ASN A 459 1 19 HELIX 19 19 SER A 467 ILE A 471 5 5 HELIX 20 20 ASN B 45 LEU B 49 5 5 HELIX 21 21 GLN B 53 GLY B 66 1 14 HELIX 22 22 CYS B 82 VAL B 92 1 11 HELIX 23 23 GLN B 104 LYS B 112 1 9 HELIX 24 24 ASN B 120 PHE B 138 1 19 HELIX 25 25 LYS B 142 GLY B 162 1 21 HELIX 26 26 PRO B 170 GLY B 188 1 19 HELIX 27 27 ASP B 195 THR B 212 1 18 HELIX 28 28 THR B 214 LYS B 228 1 15 HELIX 29 29 GLY B 232 ARG B 257 1 26 HELIX 30 30 ASP B 266 GLU B 277 1 12 HELIX 31 31 TYR B 287 HIS B 320 1 34 HELIX 32 32 HIS B 320 ILE B 335 1 16 HELIX 33 33 LYS B 342 LYS B 348 5 7 HELIX 34 34 MET B 349 ASP B 364 1 16 HELIX 35 35 MET B 394 ARG B 400 1 7 HELIX 36 36 ASN B 412 LEU B 417 5 6 HELIX 37 37 GLY B 441 PHE B 460 1 20 HELIX 38 38 ASN C 45 LEU C 49 5 5 HELIX 39 39 ASN C 50 GLU C 52 5 3 HELIX 40 40 GLN C 53 GLY C 66 1 14 HELIX 41 41 GLY C 83 VAL C 92 1 10 HELIX 42 42 GLN C 104 LYS C 112 1 9 HELIX 43 43 ASN C 120 PHE C 138 1 19 HELIX 44 44 LYS C 142 GLY C 162 1 21 HELIX 45 45 PRO C 170 GLY C 188 1 19 HELIX 46 46 ASP C 195 SER C 213 1 19 HELIX 47 47 THR C 214 LYS C 228 1 15 HELIX 48 48 GLY C 232 ARG C 257 1 26 HELIX 49 49 ASP C 266 GLU C 277 1 12 HELIX 50 50 TYR C 287 HIS C 320 1 34 HELIX 51 51 HIS C 320 GLY C 336 1 17 HELIX 52 52 LYS C 342 LYS C 348 5 7 HELIX 53 53 MET C 349 ASP C 364 1 16 HELIX 54 54 MET C 394 LEU C 399 1 6 HELIX 55 55 ASN C 412 LEU C 417 5 6 HELIX 56 56 GLY C 441 ASN C 459 1 19 HELIX 57 57 SER C 467 ILE C 471 5 5 HELIX 58 58 ASN D 45 LEU D 49 5 5 HELIX 59 59 ASN D 50 GLU D 52 5 3 HELIX 60 60 GLN D 53 GLY D 66 1 14 HELIX 61 61 GLY D 83 VAL D 92 1 10 HELIX 62 62 GLN D 104 LYS D 112 1 9 HELIX 63 63 ASN D 120 PHE D 138 1 19 HELIX 64 64 LYS D 142 GLY D 162 1 21 HELIX 65 65 ASP D 169 GLY D 188 1 20 HELIX 66 66 ASP D 195 SER D 213 1 19 HELIX 67 67 THR D 214 LYS D 228 1 15 HELIX 68 68 GLY D 232 THR D 258 1 27 HELIX 69 69 ASP D 266 GLU D 278 1 13 HELIX 70 70 TYR D 287 MET D 318 1 32 HELIX 71 71 HIS D 320 ILE D 335 1 16 HELIX 72 72 LYS D 342 ALA D 347 5 6 HELIX 73 73 MET D 349 ASP D 364 1 16 HELIX 74 74 MET D 394 ARG D 400 1 7 HELIX 75 75 ASN D 412 LEU D 417 5 6 HELIX 76 76 GLY D 441 PHE D 460 1 20 HELIX 77 77 SER D 467 ILE D 471 5 5 SHEET 1 A 5 VAL A 68 LEU A 73 0 SHEET 2 A 5 ARG A 76 LEU A 81 -1 O VAL A 78 N ILE A 71 SHEET 3 A 5 GLU A 390 PRO A 393 1 O GLU A 390 N VAL A 79 SHEET 4 A 5 ARG A 372 ARG A 373 -1 N ARG A 372 O VAL A 391 SHEET 5 A 5 GLY A 100 ARG A 101 -1 N GLY A 100 O ARG A 373 SHEET 1 B 2 THR A 378 PHE A 380 0 SHEET 2 B 2 PHE A 383 LEU A 385 -1 O LEU A 385 N THR A 378 SHEET 1 C 2 PHE A 460 SER A 464 0 SHEET 2 C 2 MET A 489 PRO A 493 -1 O LEU A 492 N ARG A 461 SHEET 1 D 2 PRO A 475 VAL A 478 0 SHEET 2 D 2 THR A 482 PRO A 484 -1 O ILE A 483 N HIS A 477 SHEET 1 E 5 VAL B 68 LEU B 73 0 SHEET 2 E 5 ARG B 76 LEU B 81 -1 O VAL B 78 N ILE B 71 SHEET 3 E 5 GLU B 390 PRO B 393 1 O GLU B 390 N VAL B 79 SHEET 4 E 5 ARG B 372 ARG B 373 -1 N ARG B 372 O VAL B 391 SHEET 5 E 5 GLY B 100 ARG B 101 -1 N GLY B 100 O ARG B 373 SHEET 1 F 2 THR B 378 PHE B 380 0 SHEET 2 F 2 PHE B 383 LEU B 385 -1 O LEU B 385 N THR B 378 SHEET 1 G 2 ARG B 461 SER B 464 0 SHEET 2 G 2 MET B 489 LEU B 492 -1 O LEU B 492 N ARG B 461 SHEET 1 H 2 PRO B 475 VAL B 478 0 SHEET 2 H 2 THR B 482 PRO B 484 -1 O ILE B 483 N LYS B 476 SHEET 1 I 5 VAL C 68 LEU C 73 0 SHEET 2 I 5 ARG C 76 LEU C 81 -1 O VAL C 78 N ILE C 71 SHEET 3 I 5 GLU C 390 PRO C 393 1 O TYR C 392 N VAL C 79 SHEET 4 I 5 ARG C 372 ARG C 373 -1 N ARG C 372 O VAL C 391 SHEET 5 I 5 GLY C 100 ARG C 101 -1 N GLY C 100 O ARG C 373 SHEET 1 J 2 THR C 378 PHE C 380 0 SHEET 2 J 2 PHE C 383 LEU C 385 -1 O LEU C 385 N THR C 378 SHEET 1 K 2 PHE C 460 SER C 464 0 SHEET 2 K 2 MET C 489 PRO C 493 -1 O LEU C 492 N ARG C 461 SHEET 1 L 2 PRO C 475 VAL C 478 0 SHEET 2 L 2 THR C 482 PRO C 484 -1 O ILE C 483 N HIS C 477 SHEET 1 M 5 VAL D 68 LEU D 73 0 SHEET 2 M 5 ARG D 76 LEU D 81 -1 O VAL D 78 N ILE D 71 SHEET 3 M 5 GLU D 390 PRO D 393 1 O GLU D 390 N VAL D 79 SHEET 4 M 5 ARG D 372 ARG D 373 -1 N ARG D 372 O VAL D 391 SHEET 5 M 5 GLY D 100 ARG D 101 -1 N GLY D 100 O ARG D 373 SHEET 1 N 2 THR D 378 PHE D 380 0 SHEET 2 N 2 PHE D 383 LEU D 385 -1 O LEU D 385 N THR D 378 SHEET 1 O 2 ARG D 461 SER D 464 0 SHEET 2 O 2 MET D 489 LEU D 492 -1 O LEU D 492 N ARG D 461 SHEET 1 P 2 PRO D 475 VAL D 478 0 SHEET 2 P 2 THR D 482 PRO D 484 -1 O ILE D 483 N HIS D 477 LINK SG CYS A 439 FE HEM A 500 1555 1555 2.36 LINK SG CYS B 439 FE HEM B 500 1555 1555 2.23 LINK SG CYS C 439 FE HEM C 500 1555 1555 2.39 LINK SG CYS D 439 FE HEM D 502 1555 1555 2.28 SITE 1 AC1 18 ARG A 101 VAL A 117 ARG A 128 GLY A 301 SITE 2 AC1 18 GLY A 302 THR A 305 ARG A 372 LEU A 395 SITE 3 AC1 18 PRO A 431 PHE A 432 SER A 433 ARG A 437 SITE 4 AC1 18 ASN A 438 CYS A 439 PHE A 440 GLY A 441 SITE 5 AC1 18 NCT A 501 HOH A 647 SITE 1 AC2 7 PHE A 107 PHE A 209 ASN A 297 GLY A 301 SITE 2 AC2 7 THR A 305 PHE A 480 HEM A 500 SITE 1 AC3 19 ARG B 101 VAL B 117 ARG B 128 GLY B 301 SITE 2 AC3 19 GLY B 302 THR B 305 GLN B 360 SER B 369 SITE 3 AC3 19 ARG B 372 LEU B 395 PRO B 431 PHE B 432 SITE 4 AC3 19 SER B 433 ILE B 434 ARG B 437 ASN B 438 SITE 5 AC3 19 CYS B 439 PHE B 440 NCT B 501 SITE 1 AC4 4 PHE B 107 ASN B 297 THR B 305 HEM B 500 SITE 1 AC5 19 ARG C 101 VAL C 117 ARG C 128 GLY C 301 SITE 2 AC5 19 GLY C 302 THR C 305 VAL C 306 THR C 309 SITE 3 AC5 19 LEU C 370 ARG C 372 LEU C 395 PRO C 431 SITE 4 AC5 19 PHE C 432 SER C 433 ARG C 437 ASN C 438 SITE 5 AC5 19 CYS C 439 PHE C 440 NCT C 501 SITE 1 AC6 5 PHE C 107 PHE C 209 ASN C 297 GLY C 301 SITE 2 AC6 5 HEM C 500 SITE 1 AC7 5 GLY D 301 THR D 305 LEU D 370 PHE D 480 SITE 2 AC7 5 HEM D 502 SITE 1 AC8 21 ARG D 101 VAL D 117 ARG D 128 GLY D 301 SITE 2 AC8 21 GLY D 302 THR D 305 VAL D 306 SER D 369 SITE 3 AC8 21 LEU D 370 ARG D 372 LEU D 395 PRO D 431 SITE 4 AC8 21 PHE D 432 SER D 433 ARG D 437 CYS D 439 SITE 5 AC8 21 PHE D 440 GLY D 441 ALA D 445 NCT D 501 SITE 6 AC8 21 HOH D 618 CRYST1 71.214 194.038 90.266 90.00 102.70 90.00 P 1 21 1 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 0.014042 0.000000 0.003165 0.00000 SCALE2 0.000000 0.005154 0.000000 0.00000 SCALE3 0.000000 0.000000 0.011356 0.00000