HEADER SIGNALING PROTEIN 06-MAY-16 5JRV TITLE CRYSTAL STRUCTURE OF FE(II) NO-BOUND H-NOX PROTEIN FROM C. TITLE 2 SUBTERRANEUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: METHYL-ACCEPTING CHEMOTAXIS PROTEIN; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: UNP RESIDUES 1-188; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CALDANAEROBACTER SUBTERRANEUS SUBSP. SOURCE 3 TENGCONGENSIS (STRAIN DSM 15242 / JCM 11007 / NBRC 100824 / MB4); SOURCE 4 ORGANISM_TAXID: 273068; SOURCE 5 STRAIN: DSM 15242 / JCM 11007 / NBRC 100824 / MB4; SOURCE 6 GENE: TAR4, TTE0680; SOURCE 7 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 9 EXPRESSION_SYSTEM_STRAIN: RP523 (DE3) KEYWDS HEME-BASED METHYL-ACCEPTING CHEMOTAXIS PROTEIN GAS BINDING SIGNALING KEYWDS 2 PROTEIN, SIGNALING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR J.BRUEGGER,C.HESPEN,C.M.PHILLIPS-PIRO,M.A.MARLETTA REVDAT 3 27-SEP-23 5JRV 1 REMARK LINK REVDAT 2 31-AUG-16 5JRV 1 JRNL REVDAT 1 06-JUL-16 5JRV 0 JRNL AUTH C.W.HESPEN,J.J.BRUEGGER,C.M.PHILLIPS-PIRO,M.A.MARLETTA JRNL TITL STRUCTURAL AND FUNCTIONAL EVIDENCE INDICATES SELECTIVE JRNL TITL 2 OXYGEN SIGNALING IN CALDANAEROBACTER SUBTERRANEUS H-NOX. JRNL REF ACS CHEM.BIOL. V. 11 2337 2016 JRNL REFN ESSN 1554-8937 JRNL PMID 27328180 JRNL DOI 10.1021/ACSCHEMBIO.6B00431 REMARK 2 REMARK 2 RESOLUTION. 1.95 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.10.1_2155: ???) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.95 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 49.98 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 32689 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.203 REMARK 3 R VALUE (WORKING SET) : 0.202 REMARK 3 FREE R VALUE : 0.231 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.850 REMARK 3 FREE R VALUE TEST SET COUNT : 1585 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 49.9957 - 4.3426 0.99 3023 156 0.1778 0.2092 REMARK 3 2 4.3426 - 3.4471 1.00 2941 123 0.1826 0.2016 REMARK 3 3 3.4471 - 3.0114 1.00 2818 171 0.2047 0.2385 REMARK 3 4 3.0114 - 2.7361 1.00 2868 139 0.2151 0.2455 REMARK 3 5 2.7361 - 2.5400 1.00 2821 146 0.2126 0.2324 REMARK 3 6 2.5400 - 2.3903 1.00 2791 158 0.2164 0.2490 REMARK 3 7 2.3903 - 2.2705 1.00 2806 148 0.2206 0.2429 REMARK 3 8 2.2705 - 2.1717 0.99 2800 139 0.2649 0.2858 REMARK 3 9 2.1717 - 2.0881 1.00 2822 142 0.2259 0.2873 REMARK 3 10 2.0881 - 2.0160 1.00 2783 141 0.2466 0.2525 REMARK 3 11 2.0160 - 1.9530 0.94 2631 122 0.2478 0.2930 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.200 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 23.180 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 37.50 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.004 3271 REMARK 3 ANGLE : 0.780 4410 REMARK 3 CHIRALITY : 0.044 452 REMARK 3 PLANARITY : 0.004 550 REMARK 3 DIHEDRAL : 14.947 1948 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 5JRV COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-MAY-16. REMARK 100 THE DEPOSITION ID IS D_1000221050. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-FEB-15 REMARK 200 TEMPERATURE (KELVIN) : 80 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ALS REMARK 200 BEAMLINE : 8.2.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.999919 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 32785 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.950 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 200 DATA REDUNDANCY : 6.800 REMARK 200 R MERGE (I) : 0.09300 REMARK 200 R SYM (I) : 0.08700 REMARK 200 FOR THE DATA SET : 14.9000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.95 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.02 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.43400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.670 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: 1U55 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.28 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: ANAEROBICALLY GROWN UNDER ARGON. 20 REMARK 280 MG/ML PROTEIN WITH WELL CONDITION OF 0.15 M NAI, 25% PEG3350., REMARK 280 VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X+1/2,Y+1/2,-Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 40.19250 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 63.81300 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 40.19250 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 63.81300 REMARK 290 SMTRY3 4 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 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 OG SER B 133 O2D HEM B 201 1.27 REMARK 500 NZ LYS B 186 O HOH B 301 1.88 REMARK 500 OE2 GLU B 47 O HOH B 302 1.97 REMARK 500 O HOH B 366 O HOH B 401 2.02 REMARK 500 OD1 ASP A 44 O HOH A 301 2.03 REMARK 500 O HOH A 389 O HOH A 418 2.04 REMARK 500 O HOH A 310 O HOH A 410 2.05 REMARK 500 O HOH B 322 O HOH B 430 2.08 REMARK 500 O HOH B 385 O HOH B 417 2.09 REMARK 500 NH1 ARG B 35 O HOH B 303 2.11 REMARK 500 NH2 ARG A 35 OE2 GLU A 41 2.11 REMARK 500 O HOH B 413 O HOH B 415 2.13 REMARK 500 O ARG B 35 O HOH B 304 2.13 REMARK 500 OE1 GLU A 65 O HOH A 302 2.16 REMARK 500 O HOH B 309 O HOH B 312 2.17 REMARK 500 O HOH A 398 O HOH A 421 2.19 REMARK 500 OE2 GLU A 128 O HOH A 303 2.19 REMARK 500 O HOH B 351 O HOH B 412 2.19 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 MET A 137 60.20 -104.85 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 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 102 NE2 REMARK 620 2 HEM A 201 NA 89.5 REMARK 620 3 HEM A 201 NB 86.2 92.5 REMARK 620 4 HEM A 201 NC 92.2 178.3 87.4 REMARK 620 5 HEM A 201 ND 88.1 87.1 174.3 93.1 REMARK 620 6 NO A 202 N 174.1 95.4 96.8 82.9 88.9 REMARK 620 7 NO A 202 O 157.0 68.1 99.3 110.3 85.9 27.4 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 102 NE2 REMARK 620 2 HEM B 201 NA 88.9 REMARK 620 3 HEM B 201 NB 89.1 91.0 REMARK 620 4 HEM B 201 NC 95.9 175.2 88.5 REMARK 620 5 HEM B 201 ND 88.6 87.5 177.3 93.1 REMARK 620 6 NO B 202 N 178.7 89.8 90.8 85.5 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 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue NO A 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue HEM B 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue NO B 202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue IOD B 203 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 5JRX RELATED DB: PDB REMARK 900 RELATED ID: 5JRU RELATED DB: PDB DBREF 5JRV A 1 188 UNP Q8RBX6 Q8RBX6_CALS4 1 188 DBREF 5JRV B 1 188 UNP Q8RBX6 Q8RBX6_CALS4 1 188 SEQRES 1 A 188 MET LYS GLY THR ILE VAL GLY THR TRP ILE LYS THR LEU SEQRES 2 A 188 ARG ASP LEU TYR GLY ASN ASP VAL VAL ASP GLU SER LEU SEQRES 3 A 188 LYS SER VAL GLY TRP GLU PRO ASP ARG VAL ILE THR PRO SEQRES 4 A 188 LEU GLU ASP ILE ASP ASP ASP GLU VAL ARG ARG ILE PHE SEQRES 5 A 188 ALA LYS VAL SER GLU LYS THR GLY LYS ASN VAL ASN GLU SEQRES 6 A 188 ILE TRP ARG GLU VAL GLY ARG GLN ASN ILE LYS THR PHE SEQRES 7 A 188 SER GLU TRP PHE PRO SER TYR PHE ALA GLY ARG ARG LEU SEQRES 8 A 188 VAL ASN PHE LEU MET MET MET ASP GLU VAL HIS LEU GLN SEQRES 9 A 188 LEU THR LYS MET ILE LYS GLY ALA THR PRO PRO ARG LEU SEQRES 10 A 188 ILE ALA LYS PRO VAL ALA LYS ASP ALA ILE GLU MET GLU SEQRES 11 A 188 TYR VAL SER LYS ARG LYS MET TYR ASP TYR PHE LEU GLY SEQRES 12 A 188 LEU ILE GLU GLY SER SER LYS PHE PHE LYS GLU GLU ILE SEQRES 13 A 188 SER VAL GLU GLU VAL GLU ARG GLY GLU LYS ASP GLY PHE SEQRES 14 A 188 SER ARG LEU LYS VAL ARG ILE LYS PHE LYS ASN PRO VAL SEQRES 15 A 188 PHE GLU TYR LYS LYS ASN SEQRES 1 B 188 MET LYS GLY THR ILE VAL GLY THR TRP ILE LYS THR LEU SEQRES 2 B 188 ARG ASP LEU TYR GLY ASN ASP VAL VAL ASP GLU SER LEU SEQRES 3 B 188 LYS SER VAL GLY TRP GLU PRO ASP ARG VAL ILE THR PRO SEQRES 4 B 188 LEU GLU ASP ILE ASP ASP ASP GLU VAL ARG ARG ILE PHE SEQRES 5 B 188 ALA LYS VAL SER GLU LYS THR GLY LYS ASN VAL ASN GLU SEQRES 6 B 188 ILE TRP ARG GLU VAL GLY ARG GLN ASN ILE LYS THR PHE SEQRES 7 B 188 SER GLU TRP PHE PRO SER TYR PHE ALA GLY ARG ARG LEU SEQRES 8 B 188 VAL ASN PHE LEU MET MET MET ASP GLU VAL HIS LEU GLN SEQRES 9 B 188 LEU THR LYS MET ILE LYS GLY ALA THR PRO PRO ARG LEU SEQRES 10 B 188 ILE ALA LYS PRO VAL ALA LYS ASP ALA ILE GLU MET GLU SEQRES 11 B 188 TYR VAL SER LYS ARG LYS MET TYR ASP TYR PHE LEU GLY SEQRES 12 B 188 LEU ILE GLU GLY SER SER LYS PHE PHE LYS GLU GLU ILE SEQRES 13 B 188 SER VAL GLU GLU VAL GLU ARG GLY GLU LYS ASP GLY PHE SEQRES 14 B 188 SER ARG LEU LYS VAL ARG ILE LYS PHE LYS ASN PRO VAL SEQRES 15 B 188 PHE GLU TYR LYS LYS ASN HET HEM A 201 43 HET NO A 202 2 HET HEM B 201 43 HET NO B 202 2 HET IOD B 203 1 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NO NITRIC OXIDE HETNAM IOD IODIDE ION HETSYN HEM HEME HETSYN NO NITROGEN MONOXIDE FORMUL 3 HEM 2(C34 H32 FE N4 O4) FORMUL 4 NO 2(N O) FORMUL 7 IOD I 1- FORMUL 8 HOH *271(H2 O) HELIX 1 AA1 LYS A 2 GLY A 18 1 17 HELIX 2 AA2 GLY A 18 VAL A 29 1 12 HELIX 3 AA3 ASP A 44 GLY A 60 1 17 HELIX 4 AA4 ASN A 62 PHE A 82 1 21 HELIX 5 AA5 PRO A 83 PHE A 86 5 4 HELIX 6 AA6 ARG A 90 MET A 97 1 8 HELIX 7 AA7 MET A 97 LYS A 107 1 11 HELIX 8 AA8 MET A 137 LYS A 153 1 17 HELIX 9 AA9 LYS B 2 GLY B 18 1 17 HELIX 10 AB1 GLY B 18 VAL B 29 1 12 HELIX 11 AB2 ASP B 44 GLY B 60 1 17 HELIX 12 AB3 ASN B 62 PHE B 82 1 21 HELIX 13 AB4 PRO B 83 PHE B 86 5 4 HELIX 14 AB5 ARG B 90 MET B 97 1 8 HELIX 15 AB6 MET B 97 LEU B 105 1 9 HELIX 16 AB7 MET B 137 LYS B 153 1 17 SHEET 1 AA1 4 ARG A 116 ALA A 123 0 SHEET 2 AA1 4 ALA A 126 SER A 133 -1 O VAL A 132 N ARG A 116 SHEET 3 AA1 4 PHE A 169 PHE A 178 -1 O SER A 170 N SER A 133 SHEET 4 AA1 4 ILE A 156 LYS A 166 -1 N LYS A 166 O PHE A 169 SHEET 1 AA2 4 ALA B 119 ALA B 123 0 SHEET 2 AA2 4 ALA B 126 SER B 133 -1 O GLU B 128 N LYS B 120 SHEET 3 AA2 4 PHE B 169 PHE B 178 -1 O ILE B 176 N ILE B 127 SHEET 4 AA2 4 ILE B 156 LYS B 166 -1 N GLU B 162 O LYS B 173 LINK NE2 HIS A 102 FE HEM A 201 1555 1555 2.00 LINK FE HEM A 201 N NO A 202 1555 1555 1.80 LINK FE HEM A 201 O NO A 202 1555 1555 2.78 LINK NE2 HIS B 102 FE HEM B 201 1555 1555 2.00 LINK FE HEM B 201 N NO B 202 1555 1555 1.80 CISPEP 1 PRO A 33 ASP A 34 0 3.43 SITE 1 AC1 21 MET A 1 LYS A 2 ILE A 5 PHE A 78 SITE 2 AC1 21 PHE A 86 PHE A 94 MET A 98 HIS A 102 SITE 3 AC1 21 LEU A 105 THR A 113 PRO A 114 LEU A 117 SITE 4 AC1 21 MET A 129 TYR A 131 SER A 133 ARG A 135 SITE 5 AC1 21 MET A 137 TYR A 140 LEU A 144 NO A 202 SITE 6 AC1 21 HOH A 312 SITE 1 AC2 4 ILE A 5 PHE A 78 TYR A 140 HEM A 201 SITE 1 AC3 21 LYS B 2 ILE B 5 PHE B 78 TYR B 85 SITE 2 AC3 21 MET B 98 HIS B 102 LEU B 105 THR B 113 SITE 3 AC3 21 PRO B 114 PRO B 115 MET B 129 TYR B 131 SITE 4 AC3 21 SER B 133 ARG B 135 MET B 137 PHE B 141 SITE 5 AC3 21 LEU B 144 ILE B 145 NO B 202 HOH B 366 SITE 6 AC3 21 HOH B 401 SITE 1 AC4 4 PHE B 78 TYR B 140 LEU B 144 HEM B 201 SITE 1 AC5 2 LYS B 2 THR B 4 CRYST1 80.385 127.626 42.937 90.00 90.00 90.00 P 21 21 2 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 0.012440 0.000000 0.000000 0.00000 SCALE2 0.000000 0.007835 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023290 0.00000