HEADER TRANSPORT PROTEIN 28-OCT-05 2EU7 TITLE CRYSTAL STRUCTURE OF D1A MUTANT OF NITROPHORIN 2 COMPLEXED WITH TITLE 2 AMMONIA COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITROPHORIN 2; COMPND 3 CHAIN: X; COMPND 4 FRAGMENT: RESIDUES 25-202; COMPND 5 SYNONYM: NP2, PROLIXIN-S; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RHODNIUS PROLIXUS; SOURCE 3 ORGANISM_TAXID: 13249; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET-24A KEYWDS BETA BARREL, LIPOCALIN, FERRIC HEME, MUTANT, TRANSPORT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR A.WEICHSEL,W.R.MONTFORT REVDAT 4 23-AUG-23 2EU7 1 REMARK REVDAT 3 20-OCT-21 2EU7 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 2EU7 1 VERSN REVDAT 1 10-OCT-06 2EU7 0 JRNL AUTH A.WEICHSEL,R.E.BERRY,F.A.WALKER,W.R.MONTFORT JRNL TITL CRYSTAL STRUCTURES, LIGAND INDUCED CONFORMATIONAL CHANGE AND JRNL TITL 2 HEME DEFORMATION IN COMPLEXES OF NITROPHORIN 2, A NITRIC JRNL TITL 3 OXIDE TRANSPORT PROTEIN FROM RHODNIUS PROLIXUS JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.F.ANDERSEN,W.R.MONTFORT REMARK 1 TITL THE CRYSTAL STRUCTURE OF NITROPHORIN 2. A TRIFUNCTIONAL REMARK 1 TITL 2 ANTIHEMOSTATIC PROTEIN FROM THE SALIVA OF RHODNIUS PROLIXUS REMARK 1 REF J.BIOL.CHEM. V. 275 30496 2000 REMARK 1 REFN ISSN 0021-9258 REMARK 1 PMID 10884386 REMARK 1 DOI 10.1074/JBC.M002857200 REMARK 2 REMARK 2 RESOLUTION. 1.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0003 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) : 1.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 88.3 REMARK 3 NUMBER OF REFLECTIONS : 45095 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) : 0.179 REMARK 3 R VALUE (WORKING SET) : 0.177 REMARK 3 FREE R VALUE : 0.215 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 2426 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) : 1.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.23 REMARK 3 REFLECTION IN BIN (WORKING SET) : 3527 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.57 REMARK 3 BIN R VALUE (WORKING SET) : 0.1910 REMARK 3 BIN FREE R VALUE SET COUNT : 205 REMARK 3 BIN FREE R VALUE : 0.2280 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1400 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 44 REMARK 3 SOLVENT ATOMS : 238 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.00 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 13.40 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : -0.02000 REMARK 3 B33 (A**2) : 0.03000 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): 0.054 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.053 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.028 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.288 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.937 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.908 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1508 ; 0.021 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 1273 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2059 ; 2.083 ; 2.048 REMARK 3 BOND ANGLES OTHERS (DEGREES): 3004 ; 0.908 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 186 ; 7.510 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 63 ;32.633 ;30.952 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 261 ;13.448 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 2 ; 7.734 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 218 ; 0.133 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1684 ; 0.015 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 269 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 270 ; 0.244 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 1291 ; 0.183 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 730 ; 0.183 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): 923 ; 0.095 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 162 ; 0.175 ; 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): 14 ; 0.201 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 36 ; 0.270 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 30 ; 0.153 ; 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): 1198 ; 2.635 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 375 ; 0.987 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1470 ; 2.947 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 782 ; 3.970 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 587 ; 4.710 ; 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): 3505 ; 2.003 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 239 ;10.540 ; 3.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 2740 ; 5.084 ; 3.000 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 : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 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 2EU7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-NOV-05. REMARK 100 THE DEPOSITION ID IS D_1000035097. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-MAR-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 14-BM-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9000 REMARK 200 MONOCHROMATOR : BENT GE(111) REMARK 200 OPTICS : BENT SI-MIRROR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDISPLAYF REMARK 200 DATA SCALING SOFTWARE : D*TREK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 47640 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.200 REMARK 200 RESOLUTION RANGE LOW (A) : 6.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.5 REMARK 200 DATA REDUNDANCY : 8.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.14000 REMARK 200 FOR THE DATA SET : 9.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.24 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.1 REMARK 200 DATA REDUNDANCY IN SHELL : 9.40 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.24000 REMARK 200 FOR SHELL : 2.900 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 1EUO REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.32 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.13 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1MM PROTEIN, 3.2M AMMONIUM PHOSPHATE, REMARK 280 100MM TRIS HCL, PH 7.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K 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 19.88500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 62.65000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 19.88500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 62.65000 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: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: X 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH X 245 LIES ON A SPECIAL POSITION. REMARK 375 HOH X 357 LIES ON A SPECIAL POSITION. REMARK 375 HOH X 404 LIES ON A SPECIAL POSITION. REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 TYR X 104 CD1 TYR X 104 CE1 -0.097 REMARK 500 REMARK 500 REMARK: NULL 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 CYS X 2 CA - CB - SG ANGL. DEV. = 7.4 DEGREES REMARK 500 ARG X 45 NE - CZ - NH2 ANGL. DEV. = -3.5 DEGREES REMARK 500 CYS X 170 CA - CB - SG ANGL. DEV. = -14.3 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 X 31 71.97 -155.57 REMARK 500 LYS X 127 128.14 -172.92 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 GLY X 125 SER X 126 148.28 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 X 201 FE REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS X 57 NE2 REMARK 620 2 HEM X 201 NA 94.0 REMARK 620 3 HEM X 201 NB 92.3 88.7 REMARK 620 4 HEM X 201 NC 89.9 176.1 91.0 REMARK 620 5 HEM X 201 ND 89.0 90.1 178.2 90.2 REMARK 620 6 NH3 X 202 N 176.5 88.6 90.2 87.5 88.6 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 X 201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NH3 X 202 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2A3F RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF NITROPHORIN 2 AQUA COMPLEX REMARK 900 RELATED ID: 2ASN RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF D1A MUTANT OF NITROPHORIN 2 COMPLEXED WITH REMARK 900 IMIDAZOLE DBREF 2EU7 X 1 179 UNP Q26241 NP2_RHOPR 24 202 SEQADV 2EU7 ALA X 1 UNP Q26241 ASP 24 ENGINEERED MUTATION SEQRES 1 X 179 ALA CYS SER THR ASN ILE SER PRO LYS GLN GLY LEU ASP SEQRES 2 X 179 LYS ALA LYS TYR PHE SER GLY LYS TRP TYR VAL THR HIS SEQRES 3 X 179 PHE LEU ASP LYS ASP PRO GLN VAL THR ASP GLN TYR CYS SEQRES 4 X 179 SER SER PHE THR PRO ARG GLU SER ASP GLY THR VAL LYS SEQRES 5 X 179 GLU ALA LEU TYR HIS TYR ASN ALA ASN LYS LYS THR SER SEQRES 6 X 179 PHE TYR ASN ILE GLY GLU GLY LYS LEU GLU SER SER GLY SEQRES 7 X 179 LEU GLN TYR THR ALA LYS TYR LYS THR VAL ASP LYS LYS SEQRES 8 X 179 LYS ALA VAL LEU LYS GLU ALA ASP GLU LYS ASN SER TYR SEQRES 9 X 179 THR LEU THR VAL LEU GLU ALA ASP ASP SER SER ALA LEU SEQRES 10 X 179 VAL HIS ILE CYS LEU ARG GLU GLY SER LYS ASP LEU GLY SEQRES 11 X 179 ASP LEU TYR THR VAL LEU THR HIS GLN LYS ASP ALA GLU SEQRES 12 X 179 PRO SER ALA LYS VAL LYS SER ALA VAL THR GLN ALA GLY SEQRES 13 X 179 LEU GLN LEU SER GLN PHE VAL GLY THR LYS ASP LEU GLY SEQRES 14 X 179 CYS GLN TYR ASP ASP GLN PHE THR SER LEU HET HEM X 201 43 HET NH3 X 202 1 HETNAM HEM PROTOPORPHYRIN IX CONTAINING FE HETNAM NH3 AMMONIA HETSYN HEM HEME FORMUL 2 HEM C34 H32 FE N4 O4 FORMUL 3 NH3 H3 N FORMUL 4 HOH *238(H2 O) HELIX 1 1 ASP X 13 PHE X 18 1 6 HELIX 2 2 SER X 145 ALA X 155 1 11 HELIX 3 3 GLN X 158 PHE X 162 5 5 HELIX 4 4 ASP X 173 LEU X 179 1 7 SHEET 1 A 7 VAL X 94 LYS X 96 0 SHEET 2 A 7 GLN X 80 VAL X 88 -1 N THR X 87 O LEU X 95 SHEET 3 A 7 SER X 65 LEU X 74 -1 N GLU X 71 O LYS X 84 SHEET 4 A 7 THR X 50 ASN X 59 -1 N VAL X 51 O GLY X 72 SHEET 5 A 7 TYR X 38 SER X 47 -1 N CYS X 39 O TYR X 58 SHEET 6 A 7 TRP X 22 ASP X 29 -1 N TRP X 22 O PHE X 42 SHEET 7 A 7 VAL X 163 GLY X 164 -1 O VAL X 163 N PHE X 27 SHEET 1 B 7 VAL X 94 LYS X 96 0 SHEET 2 B 7 GLN X 80 VAL X 88 -1 N THR X 87 O LEU X 95 SHEET 3 B 7 SER X 103 ALA X 111 -1 O TYR X 104 N ALA X 83 SHEET 4 B 7 SER X 115 ARG X 123 -1 O ARG X 123 N SER X 103 SHEET 5 B 7 LEU X 132 THR X 137 -1 O LEU X 136 N ALA X 116 SHEET 6 B 7 TRP X 22 ASP X 29 -1 N HIS X 26 O VAL X 135 SHEET 7 B 7 VAL X 163 GLY X 164 -1 O VAL X 163 N PHE X 27 SSBOND 1 CYS X 2 CYS X 121 1555 1555 2.04 SSBOND 2 CYS X 39 CYS X 170 1555 1555 2.05 LINK NE2 HIS X 57 FE HEM X 201 1555 1555 2.01 LINK FE HEM X 201 N NH3 X 202 1555 1555 2.05 SITE 1 AC1 20 VAL X 24 PHE X 27 VAL X 34 TYR X 38 SITE 2 AC1 20 SER X 40 GLU X 53 LEU X 55 HIS X 57 SITE 3 AC1 20 PHE X 66 ASN X 68 TYR X 85 THR X 87 SITE 4 AC1 20 TYR X 104 ILE X 120 LEU X 122 NH3 X 202 SITE 5 AC1 20 HOH X 223 HOH X 252 HOH X 338 HOH X 406 SITE 1 AC2 2 LEU X 132 HEM X 201 CRYST1 39.770 125.300 34.080 90.00 90.00 90.00 P 21 21 2 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 0.025145 0.000000 0.000000 0.00000 SCALE2 0.000000 0.007981 0.000000 0.00000 SCALE3 0.000000 0.000000 0.029343 0.00000