HEADER OXYGEN STORAGE/TRANSPORT 06-SEP-98 1BUW TITLE CRYSTAL STRUCTURE OF S-NITROSO-NITROSYL HUMAN HEMOGLOBIN A COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (HEMOGLOBIN); COMPND 3 CHAIN: A, C; COMPND 4 SYNONYM: S-NITROSO-NITROSYLHB; COMPND 5 OTHER_DETAILS: THE SULFHYDRYL GROUPS OF CYSTEINE 93 OF BETA SUBUNITS COMPND 6 ARE S-NITROSYLATED. THE HEME GROUPS ARE NITROSYLATED.; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: PROTEIN (HEMOGLOBIN); COMPND 9 CHAIN: B, D; COMPND 10 SYNONYM: S-NITROSO-NITROSYLHB; COMPND 11 OTHER_DETAILS: THE SULFHYDRYL GROUPS OF CYSTEINE 93 OF BETA SUBUNITS COMPND 12 ARE S-NITROSYLATED. THE HEME GROUPS ARE NITROSYLATED. SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 CELL: RED BLOOD CELL; SOURCE 6 OTHER_DETAILS: OUDATED BLOOD DRAWN FROM HEALTHY NON-SMOKER.; SOURCE 7 MOL_ID: 2; SOURCE 8 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 9 ORGANISM_COMMON: HUMAN; SOURCE 10 ORGANISM_TAXID: 9606; SOURCE 11 CELL: RED BLOOD CELL; SOURCE 12 OTHER_DETAILS: OUDATED BLOOD DRAWN FROM HEALTHY NON-SMOKER. KEYWDS OXYGEN TRANSPORT AND VASODILATION, OXYGEN STORAGE-TRANSPORT COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR N.-L.CHAN,P.H.ROGERS,A.ARNONE REVDAT 6 30-OCT-24 1BUW 1 REMARK REVDAT 5 09-AUG-23 1BUW 1 REMARK SEQADV LINK REVDAT 4 24-FEB-09 1BUW 1 VERSN REVDAT 3 01-APR-03 1BUW 1 JRNL REVDAT 2 29-DEC-99 1BUW 4 HEADER COMPND REMARK JRNL REVDAT 2 2 4 ATOM SOURCE SEQRES REVDAT 1 16-SEP-98 1BUW 0 JRNL AUTH N.L.CHAN,P.H.ROGERS,A.ARNONE JRNL TITL CRYSTAL STRUCTURE OF THE S-NITROSO FORM OF LIGANDED HUMAN JRNL TITL 2 HEMOGLOBIN. JRNL REF BIOCHEMISTRY V. 37 16459 1998 JRNL REFN ISSN 0006-2960 JRNL PMID 9843411 JRNL DOI 10.1021/BI9816711 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.0 REMARK 3 NUMBER OF REFLECTIONS : 55671 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : EVERY 10TH REFLECTION REMARK 3 R VALUE (WORKING SET) : 0.184 REMARK 3 FREE R VALUE : 0.244 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 5063 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4342 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 180 REMARK 3 SOLVENT ATOMS : 196 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : NULL REMARK 3 B22 (A**2) : NULL REMARK 3 B33 (A**2) : NULL REMARK 3 B12 (A**2) : NULL REMARK 3 B13 (A**2) : NULL REMARK 3 B23 (A**2) : NULL REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.010 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PARAM19X.PRO REMARK 3 PARAMETER FILE 2 : PARAM19X.HEME REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPH19X.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH19X.HEME REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1BUW COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB. REMARK 100 THE DEPOSITION ID IS D_1000008326. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-APR-97 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 5.8 REMARK 200 NUMBER OF CRYSTALS USED : 3 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SDMS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 55671 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.770 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.0 REMARK 200 DATA REDUNDANCY : 4.900 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.07000 REMARK 200 FOR THE DATA SET : 17.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.77 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 77.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.50 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.25000 REMARK 200 FOR SHELL : 2.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER REMARK 200 SOFTWARE USED: X-PLOR REMARK 200 STARTING MODEL: PDB ENTRY 1BBB REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.06 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.40 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1% PROTEIN 100 MM SODIUM CACODYLATE, REMARK 280 PH 5.8 16% PEG 6000 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 REMARK 290 4555 X+1/2,-Y+1/2,-Z REMARK 290 REMARK 290 WHERE NNN -> OPERATOR NUMBER REMARK 290 MMM -> TRANSLATION VECTOR REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY REMARK 290 RELATED MOLECULES. REMARK 290 SMTRY1 1 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 1 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 1 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 2 -1.000000 0.000000 0.000000 48.55000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 30.55000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 50.60000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 30.55000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 48.55000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 50.60000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 11150 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 23570 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -118.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, 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 400 REMARK 400 COMPOUND REMARK 400 THIS STRUCTURE PROVIDES THE FIRST DIRECT VISUALIZATION OF REMARK 400 AN S-NITROSYLATED PROTEIN. 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 TYR B 145 REMARK 465 HIS B 146 REMARK 465 TYR D 145 REMARK 465 HIS D 146 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 ARG A 31 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 ARG B 30 NE - CZ - NH1 ANGL. DEV. = 4.1 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 ASP A 75 49.31 -146.20 REMARK 500 ASN B 80 53.26 -141.60 REMARK 500 HIS C 45 30.87 -99.91 REMARK 500 HIS C 72 32.18 -140.76 REMARK 500 ASP C 75 54.61 -147.92 REMARK 500 SNC D 93 -70.29 -81.96 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG C 92 0.14 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM A 142 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 87 NE2 REMARK 620 2 HEM A 142 NA 85.8 REMARK 620 3 HEM A 142 NB 89.6 90.0 REMARK 620 4 HEM A 142 NC 90.3 176.0 89.5 REMARK 620 5 HEM A 142 ND 88.1 89.1 177.5 91.3 REMARK 620 6 NO A 143 N 176.0 95.2 94.3 88.8 88.1 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM B 147 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 92 NE2 REMARK 620 2 HEM B 147 NA 85.4 REMARK 620 3 HEM B 147 NB 90.8 89.1 REMARK 620 4 HEM B 147 NC 89.1 174.4 89.9 REMARK 620 5 HEM B 147 ND 85.8 91.4 176.5 89.3 REMARK 620 6 NO B 148 N 161.0 95.7 108.2 89.9 75.2 REMARK 620 7 NO B 148 O 166.2 108.4 89.0 77.1 94.2 23.0 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM C 142 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS C 87 NE2 REMARK 620 2 HEM C 142 NA 84.5 REMARK 620 3 HEM C 142 NB 87.6 89.2 REMARK 620 4 HEM C 142 NC 91.1 175.5 90.9 REMARK 620 5 HEM C 142 ND 88.6 89.7 176.2 89.9 REMARK 620 6 NO C 143 N 172.9 90.4 97.2 94.0 86.5 REMARK 620 7 NO C 143 O 165.9 109.3 89.5 75.2 94.3 20.4 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 HEM D 147 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS D 92 NE2 REMARK 620 2 HEM D 147 NA 86.6 REMARK 620 3 HEM D 147 NB 89.4 90.9 REMARK 620 4 HEM D 147 NC 89.7 176.1 90.0 REMARK 620 5 HEM D 147 ND 87.8 89.2 177.1 89.8 REMARK 620 6 NO D 148 N 175.3 89.7 87.8 94.2 95.1 REMARK 620 7 NO D 148 O 163.9 109.3 93.2 74.4 89.5 20.5 REMARK 620 N 1 2 3 4 5 6 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 142 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO A 143 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM B 147 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO B 148 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM C 142 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO C 143 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM D 147 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO D 148 DBREF 1BUW A 1 141 UNP P69905 HBA_HUMAN 1 141 DBREF 1BUW B 1 146 UNP P02023 HBB_HUMAN 1 146 DBREF 1BUW C 1 141 UNP P69905 HBA_HUMAN 1 141 DBREF 1BUW D 1 146 UNP P02023 HBB_HUMAN 1 146 SEQADV 1BUW SNC B 93 UNP P02023 CYS 93 MODIFIED RESIDUE SEQADV 1BUW SNC D 93 UNP P02023 CYS 93 MODIFIED RESIDUE SEQRES 1 A 141 VAL LEU SER PRO ALA ASP LYS THR ASN VAL LYS ALA ALA SEQRES 2 A 141 TRP GLY LYS VAL GLY ALA HIS ALA GLY GLU TYR GLY ALA SEQRES 3 A 141 GLU ALA LEU GLU ARG MET PHE LEU SER PHE PRO THR THR SEQRES 4 A 141 LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER SEQRES 5 A 141 ALA GLN VAL LYS GLY HIS GLY LYS LYS VAL ALA ASP ALA SEQRES 6 A 141 LEU THR ASN ALA VAL ALA HIS VAL ASP ASP MET PRO ASN SEQRES 7 A 141 ALA LEU SER ALA LEU SER ASP LEU HIS ALA HIS LYS LEU SEQRES 8 A 141 ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS CYS SEQRES 9 A 141 LEU LEU VAL THR LEU ALA ALA HIS LEU PRO ALA GLU PHE SEQRES 10 A 141 THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA SEQRES 11 A 141 SER VAL SER THR VAL LEU THR SER LYS TYR ARG SEQRES 1 B 146 VAL HIS LEU THR PRO GLU GLU LYS SER ALA VAL THR ALA SEQRES 2 B 146 LEU TRP GLY LYS VAL ASN VAL ASP GLU VAL GLY GLY GLU SEQRES 3 B 146 ALA LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN SEQRES 4 B 146 ARG PHE PHE GLU SER PHE GLY ASP LEU SER THR PRO ASP SEQRES 5 B 146 ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS SEQRES 6 B 146 LYS VAL LEU GLY ALA PHE SER ASP GLY LEU ALA HIS LEU SEQRES 7 B 146 ASP ASN LEU LYS GLY THR PHE ALA THR LEU SER GLU LEU SEQRES 8 B 146 HIS SNC ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE ARG SEQRES 9 B 146 LEU LEU GLY ASN VAL LEU VAL CYS VAL LEU ALA HIS HIS SEQRES 10 B 146 PHE GLY LYS GLU PHE THR PRO PRO VAL GLN ALA ALA TYR SEQRES 11 B 146 GLN LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS SEQRES 12 B 146 LYS TYR HIS SEQRES 1 C 141 VAL LEU SER PRO ALA ASP LYS THR ASN VAL LYS ALA ALA SEQRES 2 C 141 TRP GLY LYS VAL GLY ALA HIS ALA GLY GLU TYR GLY ALA SEQRES 3 C 141 GLU ALA LEU GLU ARG MET PHE LEU SER PHE PRO THR THR SEQRES 4 C 141 LYS THR TYR PHE PRO HIS PHE ASP LEU SER HIS GLY SER SEQRES 5 C 141 ALA GLN VAL LYS GLY HIS GLY LYS LYS VAL ALA ASP ALA SEQRES 6 C 141 LEU THR ASN ALA VAL ALA HIS VAL ASP ASP MET PRO ASN SEQRES 7 C 141 ALA LEU SER ALA LEU SER ASP LEU HIS ALA HIS LYS LEU SEQRES 8 C 141 ARG VAL ASP PRO VAL ASN PHE LYS LEU LEU SER HIS CYS SEQRES 9 C 141 LEU LEU VAL THR LEU ALA ALA HIS LEU PRO ALA GLU PHE SEQRES 10 C 141 THR PRO ALA VAL HIS ALA SER LEU ASP LYS PHE LEU ALA SEQRES 11 C 141 SER VAL SER THR VAL LEU THR SER LYS TYR ARG SEQRES 1 D 146 VAL HIS LEU THR PRO GLU GLU LYS SER ALA VAL THR ALA SEQRES 2 D 146 LEU TRP GLY LYS VAL ASN VAL ASP GLU VAL GLY GLY GLU SEQRES 3 D 146 ALA LEU GLY ARG LEU LEU VAL VAL TYR PRO TRP THR GLN SEQRES 4 D 146 ARG PHE PHE GLU SER PHE GLY ASP LEU SER THR PRO ASP SEQRES 5 D 146 ALA VAL MET GLY ASN PRO LYS VAL LYS ALA HIS GLY LYS SEQRES 6 D 146 LYS VAL LEU GLY ALA PHE SER ASP GLY LEU ALA HIS LEU SEQRES 7 D 146 ASP ASN LEU LYS GLY THR PHE ALA THR LEU SER GLU LEU SEQRES 8 D 146 HIS SNC ASP LYS LEU HIS VAL ASP PRO GLU ASN PHE ARG SEQRES 9 D 146 LEU LEU GLY ASN VAL LEU VAL CYS VAL LEU ALA HIS HIS SEQRES 10 D 146 PHE GLY LYS GLU PHE THR PRO PRO VAL GLN ALA ALA TYR SEQRES 11 D 146 GLN LYS VAL VAL ALA GLY VAL ALA ASN ALA LEU ALA HIS SEQRES 12 D 146 LYS TYR HIS MODRES 1BUW SNC B 93 CYS S-NITROSO-CYSTEINE MODRES 1BUW SNC D 93 CYS S-NITROSO-CYSTEINE HET SNC B 93 8 HET SNC D 93 8 HET HEM A 142 43 HET NO A 143 2 HET HEM B 147 43 HET NO B 148 2 HET HEM C 142 43 HET NO C 143 2 HET HEM D 147 43 HET NO D 148 2 HETNAM SNC S-NITROSO-CYSTEINE HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NO NITRIC OXIDE HETSYN HEM HEME HETSYN NO NITROGEN MONOXIDE FORMUL 2 SNC 2(C3 H6 N2 O3 S) FORMUL 5 HEM 4(C34 H32 FE N4 O4) FORMUL 6 NO 4(N O) FORMUL 13 HOH *196(H2 O) HELIX 1 1 PRO A 4 SER A 35 1 32 HELIX 2 2 PRO A 37 PHE A 43 5 7 HELIX 3 3 ALA A 53 HIS A 72 1 20 HELIX 4 4 MET A 76 ALA A 79 1 4 HELIX 5 5 SER A 81 ALA A 88 1 8 HELIX 6 6 PRO A 95 HIS A 112 5 18 HELIX 7 7 PRO A 119 THR A 137 1 19 HELIX 8 8 PRO B 5 LYS B 17 1 13 HELIX 9 9 VAL B 23 VAL B 34 1 12 HELIX 10 10 PRO B 36 PHE B 45 5 10 HELIX 11 11 PRO B 51 GLY B 56 1 6 HELIX 12 12 PRO B 58 ALA B 76 1 19 HELIX 13 13 LEU B 78 THR B 84 5 7 HELIX 14 14 ALA B 86 LEU B 96 1 11 HELIX 15 15 PRO B 100 GLU B 121 5 22 HELIX 16 16 PRO B 124 LEU B 141 1 18 HELIX 17 17 PRO C 4 SER C 35 1 32 HELIX 18 18 PRO C 37 TYR C 42 5 6 HELIX 19 19 ALA C 53 ALA C 79 1 27 HELIX 20 20 SER C 81 ALA C 88 1 8 HELIX 21 21 PRO C 95 HIS C 112 5 18 HELIX 22 22 PRO C 119 LEU C 136 1 18 HELIX 23 23 PRO D 5 LYS D 17 1 13 HELIX 24 24 VAL D 23 VAL D 34 1 12 HELIX 25 25 PRO D 36 PHE D 41 5 6 HELIX 26 26 GLU D 43 PHE D 45 5 3 HELIX 27 27 PRO D 51 GLY D 56 1 6 HELIX 28 28 PRO D 58 HIS D 77 1 20 HELIX 29 29 LEU D 81 THR D 84 1 4 HELIX 30 30 ALA D 86 LYS D 95 1 10 HELIX 31 31 PRO D 100 GLU D 121 5 22 HELIX 32 32 PRO D 124 ALA D 142 1 19 LINK C HIS B 92 N SNC B 93 1555 1555 1.32 LINK C SNC B 93 N ASP B 94 1555 1555 1.31 LINK C HIS D 92 N SNC D 93 1555 1555 1.31 LINK C SNC D 93 N ASP D 94 1555 1555 1.31 LINK NE2 HIS A 87 FE HEM A 142 1555 1555 2.26 LINK FE HEM A 142 N NO A 143 1555 1555 1.75 LINK NE2 HIS B 92 FE HEM B 147 1555 1555 2.29 LINK FE HEM B 147 N NO B 148 1555 1555 1.75 LINK FE HEM B 147 O NO B 148 1555 1555 2.50 LINK NE2 HIS C 87 FE HEM C 142 1555 1555 2.29 LINK FE HEM C 142 N NO C 143 1555 1555 1.76 LINK FE HEM C 142 O NO C 143 1555 1555 2.60 LINK NE2 HIS D 92 FE HEM D 147 1555 1555 2.27 LINK FE HEM D 147 N NO D 148 1555 1555 1.73 LINK FE HEM D 147 O NO D 148 1555 1555 2.55 SITE 1 AC1 14 TYR A 42 PHE A 43 HIS A 45 HIS A 58 SITE 2 AC1 14 LYS A 61 LEU A 86 HIS A 87 LEU A 91 SITE 3 AC1 14 VAL A 93 ASN A 97 PHE A 98 LEU A 101 SITE 4 AC1 14 LEU A 136 NO A 143 SITE 1 AC2 3 HIS A 58 VAL A 62 HEM A 142 SITE 1 AC3 13 THR B 38 PHE B 41 PHE B 42 HIS B 63 SITE 2 AC3 13 LYS B 66 PHE B 71 LEU B 91 HIS B 92 SITE 3 AC3 13 LEU B 96 ASN B 102 LEU B 106 LEU B 141 SITE 4 AC3 13 NO B 148 SITE 1 AC4 3 HIS B 63 VAL B 67 HEM B 147 SITE 1 AC5 14 TYR C 42 PHE C 43 HIS C 58 LYS C 61 SITE 2 AC5 14 LEU C 86 HIS C 87 LEU C 91 VAL C 93 SITE 3 AC5 14 ASN C 97 PHE C 98 LEU C 101 LEU C 136 SITE 4 AC5 14 NO C 143 HOH C 275 SITE 1 AC6 3 HIS C 58 VAL C 62 HEM C 142 SITE 1 AC7 14 THR D 38 PHE D 41 PHE D 42 HIS D 63 SITE 2 AC7 14 LYS D 66 PHE D 71 LEU D 88 HIS D 92 SITE 3 AC7 14 LEU D 96 VAL D 98 ASN D 102 LEU D 106 SITE 4 AC7 14 LEU D 141 NO D 148 SITE 1 AC8 4 PHE D 42 HIS D 63 VAL D 67 HEM D 147 CRYST1 97.100 101.200 61.100 90.00 90.00 90.00 P 21 21 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 0.010299 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009881 0.000000 0.00000 SCALE3 0.000000 0.000000 0.016367 0.00000 MTRIX1 1 0.202601 -0.326635 0.923181 39.80348 1 MTRIX2 1 -0.333979 -0.909257 -0.248414 43.16976 1 MTRIX3 1 0.920549 -0.257994 -0.293305 33.84707 1