PDB Short entry for 2IAG HEADER ISOMERASE 08-SEP-06 2IAG TITLE CRYSTAL STRUCTURE OF HUMAN PROSTACYCLIN SYNTHASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROSTACYCLIN SYNTHASE; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: RESIDUES 23-500; COMPND 5 SYNONYM: PROSTAGLANDIN I2 SYNTHASE; COMPND 6 EC: 5.3.99.4; COMPND 7 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: PTGIS; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3), B834(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PCW; SOURCE 11 OTHER_DETAILS: PLASMID PCW WAS A GIFT FROM DR. AMY ROTH, UNIVERSITY SOURCE 12 OF OREGON. KEYWDS PROSTACYCLIN SYNTHASE, CLASS III CYTOCHORME P450, HEMOPROTEIN, KEYWDS 2 CYP8A1, ISOMERASE EXPDTA X-RAY DIFFRACTION AUTHOR C.-W.CHIANG,H.-C.YEH,L.-H.WANG,N.-L.CHAN REVDAT 4 13-MAR-24 2IAG 1 REMARK SEQADV LINK REVDAT 3 24-FEB-09 2IAG 1 VERSN REVDAT 2 28-NOV-06 2IAG 1 JRNL REVDAT 1 10-OCT-06 2IAG 0 JRNL AUTH C.-W.CHIANG,H.-C.YEH,L.-H.WANG,N.-L.CHAN JRNL TITL CRYSTAL STRUCTURE OF THE HUMAN PROSTACYCLIN SYNTHASE JRNL REF J.MOL.BIOL. V. 364 266 2006 JRNL REFN ISSN 0022-2836 JRNL PMID 17020766 JRNL DOI 10.1016/J.JMB.2006.09.039 REMARK 2 REMARK 2 RESOLUTION. 2.15 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.15 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 91.0 REMARK 3 NUMBER OF REFLECTIONS : 48702 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) : 0.204 REMARK 3 R VALUE (WORKING SET) : 0.201 REMARK 3 FREE R VALUE : 0.263 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 2601 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.15 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.21 REMARK 3 REFLECTION IN BIN (WORKING SET) : 3616 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 93.29 REMARK 3 BIN R VALUE (WORKING SET) : 0.2150 REMARK 3 BIN FREE R VALUE SET COUNT : 195 REMARK 3 BIN FREE R VALUE : 0.3180 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 7611 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 87 REMARK 3 SOLVENT ATOMS : 435 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 26.95 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.322 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.243 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.155 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.798 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.938 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.906 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 7915 ; 0.011 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 10757 ; 1.380 ; 2.001 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 935 ; 6.177 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 374 ;32.256 ;22.433 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 1325 ;17.588 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 74 ;18.433 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 1144 ; 0.095 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 6066 ; 0.005 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 3657 ; 0.205 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 5280 ; 0.304 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 480 ; 0.160 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 84 ; 0.192 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 25 ; 0.154 ; 0.200 REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): 4689 ; 0.642 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 7541 ; 1.213 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 3373 ; 1.961 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 3216 ; 2.987 ; 4.500 REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING REMARK 3 POSITIONS REMARK 4 REMARK 4 2IAG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 12-SEP-06. REMARK 100 THE DEPOSITION ID IS D_1000039339. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 29-JUN-06; 15-MAY-06 REMARK 200 TEMPERATURE (KELVIN) : 100; 100 REMARK 200 PH : 8.0 REMARK 200 NUMBER OF CRYSTALS USED : 2 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y; Y REMARK 200 RADIATION SOURCE : NSRRC; SPRING-8 REMARK 200 BEAMLINE : BL13B1; BL12B2 REMARK 200 X-RAY GENERATOR MODEL : NULL; NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M; M REMARK 200 WAVELENGTH OR RANGE (A) : 0.980127; 0.9537, 0.9793 REMARK 200 MONOCHROMATOR : NULL; NULL REMARK 200 OPTICS : NULL; NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD; CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315; ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 51322 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.150 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.9 REMARK 200 DATA REDUNDANCY : 2.800 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.06300 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 12.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.15 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.23 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.5 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.35000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 3.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 48.45 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.39 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: THE NATIVE RECOMBINANT PGIS (25 MG/ML REMARK 280 IN THE BUFFER CONTAINING 20 MM TRIS, PH 8.0 AND 150 MM NACL) WAS REMARK 280 FOUND TO CRYSTALLIZE SPONTANEOUSLY INTO NEEDLE CLUSTERS IN THE REMARK 280 EPPENDORF TUBE WHEN STORED AT 4 C FOR ABOUT A WEEK. A REMARK 280 COMBINATION OF MICROSEEDING TECHNIQUE AND THE HANGING-DROP VAPOR- REMARK 280 DIFFUSION METHOD WAS THEN USED TO IMPROVE CRYSTAL QUALITY. REMARK 280 SPECIFICALLY, SEED STOCK WAS PREPARED BY CRUSHING THESE INITIAL REMARK 280 PGIS NEEDLE CLUSTERS WITH THE SEED BEAD KIT (HAMPTON RESEARCH). REMARK 280 FOLLOWING FOUR 10-FOLD SERIAL DILUTIONS OF THE SEED STOCK USING REMARK 280 THE GEL FILTRATION BUFFER, 1 MICRO-L OF DILUTED SEEDS WAS ADDED REMARK 280 INTO A 10 MICRO-L DROP OF FRESHLY CONCENTRATED PGIS SAMPLE, AND REMARK 280 EQUILIBRATED AT 4 C AGAINST 450 MICRO-L OF THE GEL FILTRATION REMARK 280 BUFFER. HIGH QUALITY SINGLE CRYSTALS OF PGIS WERE MOST OFTEN REMARK 280 OBTAINED USING 100- OR 1000-FOLD DILUTED SEED STOCK, AND REACHED REMARK 280 SUITABLE SIZE (~ 0.05,0.05 ~ 0.1 MM3) WITHIN ONE WEEK., VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 277K 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 52.79800 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 300 REMARK: THERE ARE TWO PROSTACYCLIN SYNTHASE MOLECULES IN THE REMARK 300 ASYMMETRIC UNIT, BUT THE ENZYME SHOULD FUNCTION AS A MONOMER. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 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 ALA A 320 REMARK 465 GLU A 321 REMARK 465 GLN A 322 REMARK 465 PRO A 323 REMARK 465 VAL A 324 REMARK 465 SER A 325 REMARK 465 GLN A 326 REMARK 465 THR A 327 REMARK 465 HIS A 502 REMARK 465 HIS A 503 REMARK 465 HIS A 504 REMARK 465 GLN B 319 REMARK 465 ALA B 320 REMARK 465 GLU B 321 REMARK 465 GLN B 322 REMARK 465 PRO B 323 REMARK 465 VAL B 324 REMARK 465 SER B 325 REMARK 465 GLN B 326 REMARK 465 THR B 327 REMARK 465 THR B 328 REMARK 465 THR B 329 REMARK 465 LEU B 330 REMARK 465 HIS B 503 REMARK 465 HIS B 504 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 TRP A 39 -50.45 66.67 REMARK 500 ASP A 49 84.49 -156.20 REMARK 500 HIS A 130 -124.13 57.28 REMARK 500 ARG A 188 97.35 71.05 REMARK 500 ASN A 439 62.66 -109.61 REMARK 500 PRO B 38 133.65 -39.70 REMARK 500 TRP B 39 -52.19 67.41 REMARK 500 ASP B 49 85.08 -164.58 REMARK 500 HIS B 130 -126.26 56.37 REMARK 500 PRO B 187 -75.41 -41.05 REMARK 500 ARG B 188 94.38 85.85 REMARK 500 GLN B 332 -38.07 -33.05 REMARK 500 SER B 337 46.15 -142.44 REMARK 500 ASP B 477 99.55 -69.14 REMARK 500 HIS B 501 82.71 -43.43 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 LEU A 186 PRO A 187 130.64 REMARK 500 LEU B 186 PRO B 187 132.64 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 600 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS A 441 SG REMARK 620 2 HEM A 600 NA 97.9 REMARK 620 3 HEM A 600 NB 87.0 89.6 REMARK 620 4 HEM A 600 NC 88.4 173.7 90.2 REMARK 620 5 HEM A 600 ND 95.9 92.0 176.5 87.9 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 600 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 CYS B 441 SG REMARK 620 2 HEM B 600 NA 98.3 REMARK 620 3 HEM B 600 NB 90.2 91.7 REMARK 620 4 HEM B 600 NC 86.9 174.6 86.6 REMARK 620 5 HEM B 600 ND 95.2 90.1 174.1 91.0 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 HEM A 600 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 600 DBREF 2IAG A 23 500 UNP Q16647 PTGIS_HUMAN 23 500 DBREF 2IAG B 23 500 UNP Q16647 PTGIS_HUMAN 23 500 SEQADV 2IAG HIS A 501 UNP Q16647 EXPRESSION TAG SEQADV 2IAG HIS A 502 UNP Q16647 EXPRESSION TAG SEQADV 2IAG HIS A 503 UNP Q16647 EXPRESSION TAG SEQADV 2IAG HIS A 504 UNP Q16647 EXPRESSION TAG SEQADV 2IAG HIS B 501 UNP Q16647 EXPRESSION TAG SEQADV 2IAG HIS B 502 UNP Q16647 EXPRESSION TAG SEQADV 2IAG HIS B 503 UNP Q16647 EXPRESSION TAG SEQADV 2IAG HIS B 504 UNP Q16647 EXPRESSION TAG SEQRES 1 A 482 ARG THR ARG ARG PRO GLY GLU PRO PRO LEU ASP LEU GLY SEQRES 2 A 482 SER ILE PRO TRP LEU GLY TYR ALA LEU ASP PHE GLY LYS SEQRES 3 A 482 ASP ALA ALA SER PHE LEU THR ARG MET LYS GLU LYS HIS SEQRES 4 A 482 GLY ASP ILE PHE THR ILE LEU VAL GLY GLY ARG TYR VAL SEQRES 5 A 482 THR VAL LEU LEU ASP PRO HIS SER TYR ASP ALA VAL VAL SEQRES 6 A 482 TRP GLU PRO ARG THR ARG LEU ASP PHE HIS ALA TYR ALA SEQRES 7 A 482 ILE PHE LEU MET GLU ARG ILE PHE ASP VAL GLN LEU PRO SEQRES 8 A 482 HIS TYR SER PRO SER ASP GLU LYS ALA ARG MET LYS LEU SEQRES 9 A 482 THR LEU LEU HIS ARG GLU LEU GLN ALA LEU THR GLU ALA SEQRES 10 A 482 MET TYR THR ASN LEU HIS ALA VAL LEU LEU GLY ASP ALA SEQRES 11 A 482 THR GLU ALA GLY SER GLY TRP HIS GLU MET GLY LEU LEU SEQRES 12 A 482 ASP PHE SER TYR SER PHE LEU LEU ARG ALA GLY TYR LEU SEQRES 13 A 482 THR LEU TYR GLY ILE GLU ALA LEU PRO ARG THR HIS GLU SEQRES 14 A 482 SER GLN ALA GLN ASP ARG VAL HIS SER ALA ASP VAL PHE SEQRES 15 A 482 HIS THR PHE ARG GLN LEU ASP ARG LEU LEU PRO LYS LEU SEQRES 16 A 482 ALA ARG GLY SER LEU SER VAL GLY ASP LYS ASP HIS MET SEQRES 17 A 482 CYS SER VAL LYS SER ARG LEU TRP LYS LEU LEU SER PRO SEQRES 18 A 482 ALA ARG LEU ALA ARG ARG ALA HIS ARG SER LYS TRP LEU SEQRES 19 A 482 GLU SER TYR LEU LEU HIS LEU GLU GLU MET GLY VAL SER SEQRES 20 A 482 GLU GLU MET GLN ALA ARG ALA LEU VAL LEU GLN LEU TRP SEQRES 21 A 482 ALA THR GLN GLY ASN MET GLY PRO ALA ALA PHE TRP LEU SEQRES 22 A 482 LEU LEU PHE LEU LEU LYS ASN PRO GLU ALA LEU ALA ALA SEQRES 23 A 482 VAL ARG GLY GLU LEU GLU SER ILE LEU TRP GLN ALA GLU SEQRES 24 A 482 GLN PRO VAL SER GLN THR THR THR LEU PRO GLN LYS VAL SEQRES 25 A 482 LEU ASP SER THR PRO VAL LEU ASP SER VAL LEU SER GLU SEQRES 26 A 482 SER LEU ARG LEU THR ALA ALA PRO PHE ILE THR ARG GLU SEQRES 27 A 482 VAL VAL VAL ASP LEU ALA MET PRO MET ALA ASP GLY ARG SEQRES 28 A 482 GLU PHE ASN LEU ARG ARG GLY ASP ARG LEU LEU LEU PHE SEQRES 29 A 482 PRO PHE LEU SER PRO GLN ARG ASP PRO GLU ILE TYR THR SEQRES 30 A 482 ASP PRO GLU VAL PHE LYS TYR ASN ARG PHE LEU ASN PRO SEQRES 31 A 482 ASP GLY SER GLU LYS LYS ASP PHE TYR LYS ASP GLY LYS SEQRES 32 A 482 ARG LEU LYS ASN TYR ASN MET PRO TRP GLY ALA GLY HIS SEQRES 33 A 482 ASN HIS CYS LEU GLY ARG SER TYR ALA VAL ASN SER ILE SEQRES 34 A 482 LYS GLN PHE VAL PHE LEU VAL LEU VAL HIS LEU ASP LEU SEQRES 35 A 482 GLU LEU ILE ASN ALA ASP VAL GLU ILE PRO GLU PHE ASP SEQRES 36 A 482 LEU SER ARG TYR GLY PHE GLY LEU MET GLN PRO GLU HIS SEQRES 37 A 482 ASP VAL PRO VAL ARG TYR ARG ILE ARG PRO HIS HIS HIS SEQRES 38 A 482 HIS SEQRES 1 B 482 ARG THR ARG ARG PRO GLY GLU PRO PRO LEU ASP LEU GLY SEQRES 2 B 482 SER ILE PRO TRP LEU GLY TYR ALA LEU ASP PHE GLY LYS SEQRES 3 B 482 ASP ALA ALA SER PHE LEU THR ARG MET LYS GLU LYS HIS SEQRES 4 B 482 GLY ASP ILE PHE THR ILE LEU VAL GLY GLY ARG TYR VAL SEQRES 5 B 482 THR VAL LEU LEU ASP PRO HIS SER TYR ASP ALA VAL VAL SEQRES 6 B 482 TRP GLU PRO ARG THR ARG LEU ASP PHE HIS ALA TYR ALA SEQRES 7 B 482 ILE PHE LEU MET GLU ARG ILE PHE ASP VAL GLN LEU PRO SEQRES 8 B 482 HIS TYR SER PRO SER ASP GLU LYS ALA ARG MET LYS LEU SEQRES 9 B 482 THR LEU LEU HIS ARG GLU LEU GLN ALA LEU THR GLU ALA SEQRES 10 B 482 MET TYR THR ASN LEU HIS ALA VAL LEU LEU GLY ASP ALA SEQRES 11 B 482 THR GLU ALA GLY SER GLY TRP HIS GLU MET GLY LEU LEU SEQRES 12 B 482 ASP PHE SER TYR SER PHE LEU LEU ARG ALA GLY TYR LEU SEQRES 13 B 482 THR LEU TYR GLY ILE GLU ALA LEU PRO ARG THR HIS GLU SEQRES 14 B 482 SER GLN ALA GLN ASP ARG VAL HIS SER ALA ASP VAL PHE SEQRES 15 B 482 HIS THR PHE ARG GLN LEU ASP ARG LEU LEU PRO LYS LEU SEQRES 16 B 482 ALA ARG GLY SER LEU SER VAL GLY ASP LYS ASP HIS MET SEQRES 17 B 482 CYS SER VAL LYS SER ARG LEU TRP LYS LEU LEU SER PRO SEQRES 18 B 482 ALA ARG LEU ALA ARG ARG ALA HIS ARG SER LYS TRP LEU SEQRES 19 B 482 GLU SER TYR LEU LEU HIS LEU GLU GLU MET GLY VAL SER SEQRES 20 B 482 GLU GLU MET GLN ALA ARG ALA LEU VAL LEU GLN LEU TRP SEQRES 21 B 482 ALA THR GLN GLY ASN MET GLY PRO ALA ALA PHE TRP LEU SEQRES 22 B 482 LEU LEU PHE LEU LEU LYS ASN PRO GLU ALA LEU ALA ALA SEQRES 23 B 482 VAL ARG GLY GLU LEU GLU SER ILE LEU TRP GLN ALA GLU SEQRES 24 B 482 GLN PRO VAL SER GLN THR THR THR LEU PRO GLN LYS VAL SEQRES 25 B 482 LEU ASP SER THR PRO VAL LEU ASP SER VAL LEU SER GLU SEQRES 26 B 482 SER LEU ARG LEU THR ALA ALA PRO PHE ILE THR ARG GLU SEQRES 27 B 482 VAL VAL VAL ASP LEU ALA MET PRO MET ALA ASP GLY ARG SEQRES 28 B 482 GLU PHE ASN LEU ARG ARG GLY ASP ARG LEU LEU LEU PHE SEQRES 29 B 482 PRO PHE LEU SER PRO GLN ARG ASP PRO GLU ILE TYR THR SEQRES 30 B 482 ASP PRO GLU VAL PHE LYS TYR ASN ARG PHE LEU ASN PRO SEQRES 31 B 482 ASP GLY SER GLU LYS LYS ASP PHE TYR LYS ASP GLY LYS SEQRES 32 B 482 ARG LEU LYS ASN TYR ASN MET PRO TRP GLY ALA GLY HIS SEQRES 33 B 482 ASN HIS CYS LEU GLY ARG SER TYR ALA VAL ASN SER ILE SEQRES 34 B 482 LYS GLN PHE VAL PHE LEU VAL LEU VAL HIS LEU ASP LEU SEQRES 35 B 482 GLU LEU ILE ASN ALA ASP VAL GLU ILE PRO GLU PHE ASP SEQRES 36 B 482 LEU SER ARG TYR GLY PHE GLY LEU MET GLN PRO GLU HIS SEQRES 37 B 482 ASP VAL PRO VAL ARG TYR ARG ILE ARG PRO HIS HIS HIS SEQRES 38 B 482 HIS HET HEM A 600 43 HET NA B 701 1 HET HEM B 600 43 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NA SODIUM ION HETSYN HEM HEME FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 NA NA 1+ FORMUL 6 HOH *435(H2 O) HELIX 1 1 TYR A 42 ASP A 49 1 8 HELIX 2 2 ASP A 49 GLY A 62 1 14 HELIX 3 3 ASP A 79 SER A 82 5 4 HELIX 4 4 TYR A 83 TRP A 88 1 6 HELIX 5 5 PHE A 96 ASP A 109 1 14 HELIX 6 6 SER A 116 THR A 127 1 12 HELIX 7 7 LEU A 129 GLY A 156 1 28 HELIX 8 8 LEU A 164 GLY A 182 1 19 HELIX 9 9 THR A 189 LEU A 213 1 25 HELIX 10 10 LEU A 213 GLY A 220 1 8 HELIX 11 11 SER A 223 LEU A 241 1 19 HELIX 12 12 SER A 242 ALA A 247 1 6 HELIX 13 13 SER A 253 MET A 266 1 14 HELIX 14 14 SER A 269 GLY A 286 1 18 HELIX 15 15 ASN A 287 ASN A 302 1 16 HELIX 16 16 ASN A 302 TRP A 318 1 17 HELIX 17 17 PRO A 331 SER A 337 1 7 HELIX 18 18 THR A 338 ALA A 353 1 16 HELIX 19 19 GLY A 443 HIS A 461 1 19 HELIX 20 20 ASP A 477 TYR A 481 5 5 HELIX 21 21 TYR B 42 ASP B 49 1 8 HELIX 22 22 ASP B 49 GLY B 62 1 14 HELIX 23 23 ASP B 79 HIS B 81 5 3 HELIX 24 24 SER B 82 TRP B 88 1 7 HELIX 25 25 PHE B 96 ASP B 109 1 14 HELIX 26 26 SER B 116 THR B 127 1 12 HELIX 27 27 LEU B 129 GLY B 156 1 28 HELIX 28 28 LEU B 164 GLY B 182 1 19 HELIX 29 29 THR B 189 GLY B 220 1 32 HELIX 30 30 SER B 223 LEU B 241 1 19 HELIX 31 31 SER B 242 ARG B 248 1 7 HELIX 32 32 SER B 253 MET B 266 1 14 HELIX 33 33 SER B 269 GLY B 286 1 18 HELIX 34 34 ASN B 287 LYS B 301 1 15 HELIX 35 35 ASN B 302 TRP B 318 1 17 HELIX 36 36 GLN B 332 SER B 337 1 6 HELIX 37 37 THR B 338 ALA B 353 1 16 HELIX 38 38 ALA B 436 HIS B 440 5 5 HELIX 39 39 GLY B 443 HIS B 461 1 19 HELIX 40 40 ASP B 477 TYR B 481 5 5 SHEET 1 A 6 LEU A 32 ASP A 33 0 SHEET 2 A 6 ILE A 64 VAL A 69 1 O THR A 66 N ASP A 33 SHEET 3 A 6 ARG A 72 LEU A 77 -1 O VAL A 74 N ILE A 67 SHEET 4 A 6 ARG A 382 LEU A 385 1 O ARG A 382 N THR A 75 SHEET 5 A 6 ILE A 357 VAL A 361 -1 N ARG A 359 O LEU A 383 SHEET 6 A 6 LEU A 94 ASP A 95 -1 N ASP A 95 O GLU A 360 SHEET 1 B 3 HIS A 160 GLY A 163 0 SHEET 2 B 3 PRO A 493 ILE A 498 -1 O VAL A 494 N MET A 162 SHEET 3 B 3 LEU A 462 LEU A 466 -1 N GLU A 465 O ARG A 495 SHEET 1 C 2 LEU A 365 PRO A 368 0 SHEET 2 C 2 GLU A 374 LEU A 377 -1 O PHE A 375 N MET A 367 SHEET 1 D 2 TYR A 421 LYS A 422 0 SHEET 2 D 2 LYS A 425 ARG A 426 -1 O LYS A 425 N LYS A 422 SHEET 1 E 2 GLY A 435 ALA A 436 0 SHEET 2 E 2 ASN A 439 HIS A 440 -1 O ASN A 439 N ALA A 436 SHEET 1 F 6 LEU B 32 ASP B 33 0 SHEET 2 F 6 ILE B 64 VAL B 69 1 O THR B 66 N ASP B 33 SHEET 3 F 6 ARG B 72 LEU B 77 -1 O VAL B 76 N PHE B 65 SHEET 4 F 6 ARG B 382 LEU B 385 1 O ARG B 382 N THR B 75 SHEET 5 F 6 ILE B 357 VAL B 361 -1 N ARG B 359 O LEU B 383 SHEET 6 F 6 LEU B 94 ASP B 95 -1 N ASP B 95 O GLU B 360 SHEET 1 G 3 HIS B 160 GLY B 163 0 SHEET 2 G 3 PRO B 493 ILE B 498 -1 O VAL B 494 N MET B 162 SHEET 3 G 3 LEU B 462 LEU B 466 -1 N ASP B 463 O ARG B 497 SHEET 1 H 2 LEU B 365 PRO B 368 0 SHEET 2 H 2 GLU B 374 LEU B 377 -1 O PHE B 375 N MET B 367 SHEET 1 I 2 TYR B 421 LYS B 422 0 SHEET 2 I 2 LYS B 425 ARG B 426 -1 O LYS B 425 N LYS B 422 LINK SG CYS A 441 FE HEM A 600 1555 1555 2.53 LINK SG CYS B 441 FE HEM B 600 1555 1555 2.47 CISPEP 1 SER A 390 PRO A 391 0 11.39 CISPEP 2 SER B 390 PRO B 391 0 10.88 SITE 1 AC1 17 MET A 124 GLN A 280 ALA A 283 THR A 284 SITE 2 AC1 17 ASN A 287 PRO A 433 TRP A 434 GLY A 435 SITE 3 AC1 17 ASN A 439 CYS A 441 LEU A 442 GLY A 443 SITE 4 AC1 17 TYR A 446 ALA A 447 LEU A 485 HOH A 807 SITE 5 AC1 17 HOH A 812 SITE 1 AC2 19 LYS B 121 MET B 124 LEU B 128 ALA B 283 SITE 2 AC2 19 THR B 284 ASN B 287 MET B 288 PRO B 355 SITE 3 AC2 19 PRO B 433 TRP B 434 GLY B 435 ASN B 439 SITE 4 AC2 19 CYS B 441 LEU B 442 GLY B 443 ALA B 447 SITE 5 AC2 19 LEU B 485 HOH B 919 HOH B 921 CRYST1 67.733 105.596 73.950 90.00 92.01 90.00 P 1 21 1 4 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 0.014764 0.000000 0.000518 0.00000 SCALE2 0.000000 0.009470 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013531 0.00000