HEADER TRANSFERASE 22-OCT-08 3EZH TITLE CRYSTAL STRUCTURE OF THE E. COLI HISTIDINE KINASE NARX SENSOR DOMAIN TITLE 2 IN COMPLEX WITH NITRATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: NITRATE/NITRITE SENSOR PROTEIN NARX; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: UNP RESIDUES 38-151; COMPND 5 EC: 2.7.13.3; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI K12; SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K-12; SOURCE 5 GENE: B1222, JW1213, NARR, NARX; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET22B+ KEYWDS HISTIDINE KINASE, SENSOR DOMAIN, SENSOR PROTEIN, FOUR-HELIX BUNDLE, KEYWDS 2 NITRATE SENSOR, SELENOMETHIONYL MAD, SIGNAL TRANSDUCTION, CELL INNER KEYWDS 3 MEMBRANE, CELL MEMBRANE, KINASE, MEMBRANE, NITRATE ASSIMILATION, KEYWDS 4 PHOSPHOPROTEIN, TRANSFERASE, TRANSMEMBRANE, TWO-COMPONENT REGULATORY KEYWDS 5 SYSTEM EXPDTA X-RAY DIFFRACTION AUTHOR J.CHEUNG,W.A.HENDRICKSON REVDAT 5 27-DEC-23 3EZH 1 REMARK REVDAT 4 30-JUN-21 3EZH 1 REMARK SEQADV LINK REVDAT 3 25-OCT-17 3EZH 1 REMARK REVDAT 2 24-FEB-09 3EZH 1 JRNL REVDAT 1 23-DEC-08 3EZH 0 JRNL AUTH J.CHEUNG,W.A.HENDRICKSON JRNL TITL STRUCTURAL ANALYSIS OF LIGAND STIMULATION OF THE HISTIDINE JRNL TITL 2 KINASE NARX. JRNL REF STRUCTURE V. 17 190 2009 JRNL REFN ISSN 0969-2126 JRNL PMID 19217390 JRNL DOI 10.1016/J.STR.2008.12.013 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 24.94 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1720149.375 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 97.9 REMARK 3 NUMBER OF REFLECTIONS : 27155 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 SET) : 0.217 REMARK 3 FREE R VALUE : 0.258 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1355 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.007 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.81 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 91.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3966 REMARK 3 BIN R VALUE (WORKING SET) : 0.2700 REMARK 3 BIN FREE R VALUE : 0.3430 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.80 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 202 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.024 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1754 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 4 REMARK 3 SOLVENT ATOMS : 255 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 32.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.23000 REMARK 3 B22 (A**2) : 5.23000 REMARK 3 B33 (A**2) : -10.45000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : 0.16 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.26 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.19 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.017 REMARK 3 BOND ANGLES (DEGREES) : 1.700 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 18.90 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.230 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 2.520 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 3.220 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 4.780 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 6.700 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.30 REMARK 3 BSOL : 64.20 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : NO3_XPLOR_PAR.TXT REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : NO3_XPLOR_TOP.TXT REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 3EZH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-OCT-08. REMARK 100 THE DEPOSITION ID IS D_1000049956. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-SEP-00 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 : NSLS REMARK 200 BEAMLINE : X4A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9673, 0.9786, 0.9794, 0.9904 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 27197 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.4 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.04600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 20.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.25000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SOLVE, DM REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.22 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.29 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM PHOSPHATE, PH 8.5, VAPOR REMARK 280 DIFFUSION, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 77.62850 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 27.88000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 27.88000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 116.44275 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 27.88000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 27.88000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 38.81425 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 27.88000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 27.88000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 116.44275 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 27.88000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 27.88000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 38.81425 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 77.62850 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2170 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11290 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -4.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 6160 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20760 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -29.0 KCAL/MOL 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 BIOMT1 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 77.62850 REMARK 350 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 3 0.000000 1.000000 0.000000 -27.88000 REMARK 350 BIOMT2 3 -1.000000 0.000000 0.000000 27.88000 REMARK 350 BIOMT3 3 0.000000 0.000000 1.000000 38.81425 REMARK 350 BIOMT1 4 1.000000 0.000000 0.000000 -27.88000 REMARK 350 BIOMT2 4 0.000000 -1.000000 0.000000 27.88000 REMARK 350 BIOMT3 4 0.000000 0.000000 -1.000000 38.81425 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 GLN A 38 REMARK 465 GLY A 39 REMARK 465 VAL A 40 REMARK 465 GLN A 41 REMARK 465 GLU A 156 REMARK 465 HIS A 157 REMARK 465 HIS A 158 REMARK 465 HIS A 159 REMARK 465 HIS A 160 REMARK 465 HIS A 161 REMARK 465 HIS A 162 REMARK 465 GLN B 38 REMARK 465 GLY B 39 REMARK 465 VAL B 40 REMARK 465 GLN B 41 REMARK 465 LEU B 155 REMARK 465 GLU B 156 REMARK 465 HIS B 157 REMARK 465 HIS B 158 REMARK 465 HIS B 159 REMARK 465 HIS B 160 REMARK 465 HIS B 161 REMARK 465 HIS B 162 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 O THR A 151 O ALA A 153 2.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 NE2 GLN A 118 NE2 GLN A 118 7555 1.91 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 GLU A 109 -56.05 -136.94 REMARK 500 GLU A 109 -59.31 -134.29 REMARK 500 ALA A 154 -58.02 57.87 REMARK 500 GLU B 109 -50.46 -129.70 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NO3 A 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3EZI RELATED DB: PDB REMARK 900 E. COLI NARX SENSOR DOMAIN DBREF 3EZH A 38 151 UNP P0AFA2 NARX_ECOLI 38 151 DBREF 3EZH B 38 151 UNP P0AFA2 NARX_ECOLI 38 151 SEQADV 3EZH ALA A 152 UNP P0AFA2 EXPRESSION TAG SEQADV 3EZH ALA A 153 UNP P0AFA2 EXPRESSION TAG SEQADV 3EZH ALA A 154 UNP P0AFA2 EXPRESSION TAG SEQADV 3EZH LEU A 155 UNP P0AFA2 EXPRESSION TAG SEQADV 3EZH ALA B 152 UNP P0AFA2 EXPRESSION TAG SEQADV 3EZH ALA B 153 UNP P0AFA2 EXPRESSION TAG SEQADV 3EZH ALA B 154 UNP P0AFA2 EXPRESSION TAG SEQADV 3EZH LEU B 155 UNP P0AFA2 EXPRESSION TAG SEQRES 1 A 125 GLN GLY VAL GLN GLY SER ALA HIS ALA ILE ASN LYS ALA SEQRES 2 A 125 GLY SER LEU ARG MSE GLN SER TYR ARG LEU LEU ALA ALA SEQRES 3 A 125 VAL PRO LEU SER GLU LYS ASP LYS PRO LEU ILE LYS GLU SEQRES 4 A 125 MSE GLU GLN THR ALA PHE SER ALA GLU LEU THR ARG ALA SEQRES 5 A 125 ALA GLU ARG ASP GLY GLN LEU ALA GLN LEU GLN GLY LEU SEQRES 6 A 125 GLN ASP TYR TRP ARG ASN GLU LEU ILE PRO ALA LEU MSE SEQRES 7 A 125 ARG ALA GLN ASN ARG GLU THR VAL SER ALA ASP VAL SER SEQRES 8 A 125 GLN PHE VAL ALA GLY LEU ASP GLN LEU VAL SER GLY PHE SEQRES 9 A 125 ASP ARG THR THR GLU MSE ARG ILE GLU THR ALA ALA ALA SEQRES 10 A 125 LEU GLU HIS HIS HIS HIS HIS HIS SEQRES 1 B 125 GLN GLY VAL GLN GLY SER ALA HIS ALA ILE ASN LYS ALA SEQRES 2 B 125 GLY SER LEU ARG MSE GLN SER TYR ARG LEU LEU ALA ALA SEQRES 3 B 125 VAL PRO LEU SER GLU LYS ASP LYS PRO LEU ILE LYS GLU SEQRES 4 B 125 MSE GLU GLN THR ALA PHE SER ALA GLU LEU THR ARG ALA SEQRES 5 B 125 ALA GLU ARG ASP GLY GLN LEU ALA GLN LEU GLN GLY LEU SEQRES 6 B 125 GLN ASP TYR TRP ARG ASN GLU LEU ILE PRO ALA LEU MSE SEQRES 7 B 125 ARG ALA GLN ASN ARG GLU THR VAL SER ALA ASP VAL SER SEQRES 8 B 125 GLN PHE VAL ALA GLY LEU ASP GLN LEU VAL SER GLY PHE SEQRES 9 B 125 ASP ARG THR THR GLU MSE ARG ILE GLU THR ALA ALA ALA SEQRES 10 B 125 LEU GLU HIS HIS HIS HIS HIS HIS MODRES 3EZH MSE A 55 MET SELENOMETHIONINE MODRES 3EZH MSE A 77 MET SELENOMETHIONINE MODRES 3EZH MSE A 115 MET SELENOMETHIONINE MODRES 3EZH MSE A 147 MET SELENOMETHIONINE MODRES 3EZH MSE B 55 MET SELENOMETHIONINE MODRES 3EZH MSE B 77 MET SELENOMETHIONINE MODRES 3EZH MSE B 115 MET SELENOMETHIONINE MODRES 3EZH MSE B 147 MET SELENOMETHIONINE HET MSE A 55 8 HET MSE A 77 8 HET MSE A 115 16 HET MSE A 147 16 HET MSE B 55 8 HET MSE B 77 8 HET MSE B 115 8 HET MSE B 147 16 HET NO3 A 1 4 HETNAM MSE SELENOMETHIONINE HETNAM NO3 NITRATE ION FORMUL 1 MSE 8(C5 H11 N O2 SE) FORMUL 3 NO3 N O3 1- FORMUL 4 HOH *255(H2 O) HELIX 1 1 GLY A 42 ALA A 63 1 22 HELIX 2 2 SER A 67 LYS A 69 5 3 HELIX 3 3 ASP A 70 PHE A 82 1 13 HELIX 4 4 SER A 83 GLY A 94 1 12 HELIX 5 5 GLN A 95 GLU A 109 1 15 HELIX 6 6 GLU A 109 ALA A 117 1 9 HELIX 7 7 ASN A 119 THR A 122 5 4 HELIX 8 8 VAL A 123 THR A 151 1 29 HELIX 9 9 GLY B 42 ALA B 62 1 21 HELIX 10 10 SER B 67 LYS B 69 5 3 HELIX 11 11 ASP B 70 PHE B 82 1 13 HELIX 12 12 SER B 83 GLY B 94 1 12 HELIX 13 13 GLN B 95 GLU B 109 1 15 HELIX 14 14 GLU B 109 ALA B 117 1 9 HELIX 15 15 ASN B 119 THR B 122 5 4 HELIX 16 16 VAL B 123 ALA B 154 1 32 LINK C ARG A 54 N MSE A 55 1555 1555 1.33 LINK C MSE A 55 N GLN A 56 1555 1555 1.35 LINK C GLU A 76 N MSE A 77 1555 1555 1.33 LINK C MSE A 77 N GLU A 78 1555 1555 1.32 LINK C LEU A 114 N AMSE A 115 1555 1555 1.33 LINK C LEU A 114 N BMSE A 115 1555 1555 1.31 LINK C AMSE A 115 N ARG A 116 1555 1555 1.33 LINK C BMSE A 115 N ARG A 116 1555 1555 1.32 LINK C GLU A 146 N AMSE A 147 1555 1555 1.33 LINK C GLU A 146 N BMSE A 147 1555 1555 1.33 LINK C AMSE A 147 N ARG A 148 1555 1555 1.33 LINK C BMSE A 147 N ARG A 148 1555 1555 1.33 LINK C ARG B 54 N MSE B 55 1555 1555 1.34 LINK C MSE B 55 N GLN B 56 1555 1555 1.35 LINK C GLU B 76 N MSE B 77 1555 1555 1.34 LINK C MSE B 77 N GLU B 78 1555 1555 1.33 LINK C LEU B 114 N MSE B 115 1555 1555 1.33 LINK C MSE B 115 N ARG B 116 1555 1555 1.32 LINK C GLU B 146 N AMSE B 147 1555 1555 1.33 LINK C GLU B 146 N BMSE B 147 1555 1555 1.33 LINK C AMSE B 147 N ARG B 148 1555 1555 1.33 LINK C BMSE B 147 N ARG B 148 1555 1555 1.32 CISPEP 1 VAL A 64 PRO A 65 0 -0.29 CISPEP 2 VAL B 64 PRO B 65 0 -0.42 SITE 1 AC1 8 GLY A 51 SER A 52 ARG A 54 MSE A 55 SITE 2 AC1 8 GLY B 51 SER B 52 ARG B 54 MSE B 55 CRYST1 55.760 55.760 155.257 90.00 90.00 90.00 P 43 21 2 16 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 0.017934 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017934 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006441 0.00000