HEADER TRANSCRIPTION 17-JAN-12 4AF5 TITLE STRUCTURE OF THE C. GLUTAMICUM ACNR CRYSTAL FORM I COMPND MOL_ID: 1; COMPND 2 MOLECULE: HTH-TYPE TRANSCRIPTIONAL REPRESSOR ACNR COMPND 2; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: ACNR; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: CORYNEBACTERIUM GLUTAMICUM; SOURCE 3 ORGANISM_TAXID: 1718; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS TRANSCRIPTION, ACONITASE, TETR REPRESSOR EXPDTA X-RAY DIFFRACTION AUTHOR J.GARCIA-NAFRIA,M.BAUMGART,J.P.TURKENBURG,A.J.WILKINSON,M.BOTT, AUTHOR 2 K.S.WILSON REVDAT 4 20-DEC-23 4AF5 1 REMARK LINK REVDAT 3 19-JUN-13 4AF5 1 JRNL REVDAT 2 01-MAY-13 4AF5 1 AUTHOR JRNL REVDAT 1 23-JAN-13 4AF5 0 JRNL AUTH J.GARCIA-NAFRIA,M.BAUMGART,J.P.TURKENBURG,A.J.WILKINSON, JRNL AUTH 2 M.BOTT,K.S.WILSON JRNL TITL CRYSTAL AND SOLUTION STUDIES REVEAL THAT THE TRANSCRIPTIONAL JRNL TITL 2 REGULATOR ACNR OF CORYNEBACTERIUM GLUTAMICUM IS REGULATED BY JRNL TITL 3 CITRATE:MG2+ BINDING TO A NON-CANONICAL POCKET. JRNL REF J.BIOL.CHEM. V. 288 15800 2013 JRNL REFN ISSN 0021-9258 JRNL PMID 23589369 JRNL DOI 10.1074/JBC.M113.462440 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.GARCIA-NAFRIA,M.BAUMGART,M.BOTT,A.J.WILKINSON,K.S.WILSON REMARK 1 TITL THE CORYNEBACTERIUM GLUTAMICUM ACONITASE REPRESSOR: REMARK 1 TITL 2 SCRATCHING AROUND FOR CRYSTALS. REMARK 1 REF ACTA CRYSTALLOGR.,SECT.F V. 66 1074 2010 REMARK 1 REFN ESSN 1744-3091 REMARK 1 PMID 20823530 REMARK 1 DOI 10.1107/S1744309110029015 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.6.0119 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) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 73.20 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 98.9 REMARK 3 NUMBER OF REFLECTIONS : 14286 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) : 0.196 REMARK 3 R VALUE (WORKING SET) : 0.194 REMARK 3 FREE R VALUE : 0.246 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 756 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) : 1.90 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.95 REMARK 3 REFLECTION IN BIN (WORKING SET) : 911 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.59 REMARK 3 BIN R VALUE (WORKING SET) : 0.2230 REMARK 3 BIN FREE R VALUE SET COUNT : 64 REMARK 3 BIN FREE R VALUE : 0.2640 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1383 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 14 REMARK 3 SOLVENT ATOMS : 102 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.79 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.30000 REMARK 3 B22 (A**2) : -0.06000 REMARK 3 B33 (A**2) : -0.25000 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): 0.162 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.156 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.093 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.081 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.940 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.910 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1436 ; 0.019 ; 0.019 REMARK 3 BOND LENGTHS OTHERS (A): 1015 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 1936 ; 1.956 ; 1.967 REMARK 3 BOND ANGLES OTHERS (DEGREES): 2436 ; 1.039 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 179 ; 5.532 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 74 ;34.132 ;22.432 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 262 ;14.785 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 20 ;16.922 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 215 ; 0.297 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1614 ; 0.008 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 318 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL 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 : 1.20 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. U VALUES REFINED INDIVIDUALLY. REMARK 4 REMARK 4 4AF5 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 17-JAN-12. REMARK 100 THE DEPOSITION ID IS D_1290050966. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 18-FEB-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : ID29 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0332 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315R REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15067 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.900 REMARK 200 RESOLUTION RANGE LOW (A) : 31.310 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 200 DATA REDUNDANCY : 6.000 REMARK 200 R MERGE (I) : 0.13000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 10.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.9 REMARK 200 DATA REDUNDANCY IN SHELL : 6.20 REMARK 200 R MERGE FOR SHELL (I) : 0.66000 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: PDB ENTRY 4AC6 REMARK 200 REMARK 200 REMARK: NONE REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.90 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.34 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1 M AMMONIUM PHOSPHATE; 100 MM SODIUM REMARK 280 CITRATE PH 4 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 17.32000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 36.36500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 17.32000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 36.36500 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 4190 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 16480 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -39.3 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 -1.000000 0.000000 0.000000 -34.64000 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 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 GLY A -1 REMARK 465 HIS A 0 REMARK 465 MET A 1 REMARK 465 SER A 2 REMARK 465 VAL A 3 REMARK 465 ALA A 4 REMARK 465 ALA A 5 REMARK 465 GLY A 6 REMARK 465 ASP A 7 REMARK 465 LYS A 8 REMARK 465 PRO A 9 REMARK 465 THR A 10 REMARK 465 ASN A 11 REMARK 465 SER A 12 REMARK 465 ARG A 187 REMARK 465 ASP A 188 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 GLU A 30 CG CD OE1 OE2 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 MG A1187 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 181 OE2 REMARK 620 2 GLU A 181 OE2 26.9 REMARK 620 3 CIT A1188 O5 161.8 166.9 REMARK 620 4 CIT A1188 O7 88.2 107.0 74.6 REMARK 620 5 CIT A1188 O1 97.9 82.0 85.5 81.3 REMARK 620 6 HOH A2040 O 78.4 97.7 95.3 89.8 170.4 REMARK 620 7 HOH A2042 O 107.6 86.0 90.2 162.8 89.7 99.8 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 MG A 1187 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CIT A 1188 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4AC6 RELATED DB: PDB REMARK 900 CORYNEBACTERIUM GLUTAMICUM ACNR AU DERIVATIVE STRUCTURE REMARK 900 RELATED ID: 4ACI RELATED DB: PDB REMARK 900 STRUCTURE OF THE C. GLUTAMICUM ACNR CRYSTAL FORM II DBREF 4AF5 A 1 188 UNP Q8NQ97 ACNR_CORGL 1 188 SEQADV 4AF5 GLY A -1 UNP Q8NQ97 EXPRESSION TAG SEQADV 4AF5 HIS A 0 UNP Q8NQ97 EXPRESSION TAG SEQRES 1 A 190 GLY HIS MET SER VAL ALA ALA GLY ASP LYS PRO THR ASN SEQRES 2 A 190 SER ARG GLN GLU ILE LEU GLU GLY ALA ARG ARG CYS PHE SEQRES 3 A 190 ALA GLU HIS GLY TYR GLU GLY ALA THR VAL ARG ARG LEU SEQRES 4 A 190 GLU GLU ALA THR GLY LYS SER ARG GLY ALA ILE PHE HIS SEQRES 5 A 190 HIS PHE GLY ASP LYS GLU ASN LEU PHE LEU ALA LEU ALA SEQRES 6 A 190 ARG GLU ASP ALA ALA ARG MET ALA GLU VAL VAL SER GLU SEQRES 7 A 190 ASN GLY LEU VAL GLU VAL MET ARG GLY MET LEU GLU ASP SEQRES 8 A 190 PRO GLU ARG TYR ASP TRP MET SER VAL ARG LEU GLU ILE SEQRES 9 A 190 SER LYS GLN LEU ARG THR ASP PRO VAL PHE ARG ALA LYS SEQRES 10 A 190 TRP ILE ASP HIS GLN SER VAL LEU ASP GLU ALA VAL ARG SEQRES 11 A 190 VAL ARG LEU SER ARG ASN VAL ASP LYS GLY GLN MET ARG SEQRES 12 A 190 THR ASP VAL PRO ILE GLU VAL LEU HIS THR PHE LEU GLU SEQRES 13 A 190 THR VAL LEU ASP GLY PHE ILE SER ARG LEU ALA THR GLY SEQRES 14 A 190 ALA SER THR GLU GLY LEU SER GLU VAL LEU ASP LEU VAL SEQRES 15 A 190 GLU GLY THR VAL ARG LYS ARG ASP HET MG A1187 1 HET CIT A1188 13 HETNAM MG MAGNESIUM ION HETNAM CIT CITRIC ACID FORMUL 2 MG MG 2+ FORMUL 3 CIT C6 H8 O7 FORMUL 4 HOH *102(H2 O) HELIX 1 1 ARG A 13 GLY A 28 1 16 HELIX 2 2 THR A 33 GLY A 42 1 10 HELIX 3 3 SER A 44 GLY A 53 1 10 HELIX 4 4 ASP A 54 GLY A 78 1 25 HELIX 5 5 GLY A 78 ASP A 89 1 12 HELIX 6 6 ARG A 92 ILE A 102 1 11 HELIX 7 7 ILE A 102 ASP A 109 1 8 HELIX 8 8 ASP A 109 GLN A 120 1 12 HELIX 9 9 GLN A 120 LYS A 137 1 18 HELIX 10 10 PRO A 145 THR A 166 1 22 HELIX 11 11 GLY A 172 ARG A 185 1 14 LINK OE2AGLU A 181 MG MG A1187 1555 1555 2.22 LINK OE2BGLU A 181 MG MG A1187 1555 1555 2.04 LINK MG MG A1187 O5 CIT A1188 1555 1555 2.06 LINK MG MG A1187 O7 CIT A1188 1555 1555 2.08 LINK MG MG A1187 O1 CIT A1188 1555 1555 2.04 LINK MG MG A1187 O HOH A2040 1555 1555 1.88 LINK MG MG A1187 O HOH A2042 1555 1555 2.07 SITE 1 AC1 5 ASN A 77 GLU A 181 CIT A1188 HOH A2040 SITE 2 AC1 5 HOH A2042 SITE 1 AC2 13 ASN A 77 GLY A 78 LEU A 79 VAL A 80 SITE 2 AC2 13 ARG A 130 ASN A 134 LEU A 153 GLU A 181 SITE 3 AC2 13 ARG A 185 MG A1187 HOH A2040 HOH A2042 SITE 4 AC2 13 HOH A2043 CRYST1 34.640 72.730 73.200 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 0.028868 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013749 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013661 0.00000