PDB Short entry for 6J80 HEADER HYDROLASE/DNA 18-JAN-19 6J80 TITLE HUMAN MITOCHONDRIAL OLIGORIBONUCLEASE IN COMPLEX WITH POLY-DT DNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: OLIGORIBONUCLEASE, MITOCHONDRIAL; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: DNA (5'-D(P*TP*TP*TP*TP*TP*TP*T)-3'); COMPND 8 CHAIN: C; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 6 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 8 MOL_ID: 2; SOURCE 9 SYNTHETIC: YES; SOURCE 10 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT; SOURCE 11 ORGANISM_TAXID: 32630 KEYWDS EXORIBONUCLEASE, MITOCHONRIAL OLIGORIBONUCLEASE, HYDROLASE, KEYWDS 2 HYDROLASE-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR L.Y.CHU,S.AGRAWAL,H.S.YUAN REVDAT 2 22-NOV-23 6J80 1 REMARK LINK REVDAT 1 28-AUG-19 6J80 0 JRNL AUTH L.Y.CHU,S.AGRAWAL,Y.P.CHEN,W.Z.YANG,H.S.YUAN JRNL TITL STRUCTURAL INSIGHTS INTO NANORNA DEGRADATION BY HUMAN REXO2. JRNL REF RNA V. 25 737 2019 JRNL REFN ESSN 1469-9001 JRNL PMID 30926754 JRNL DOI 10.1261/RNA.070557.119 REMARK 2 REMARK 2 RESOLUTION. 1.81 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.13_2998 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.81 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 26.12 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.3 REMARK 3 NUMBER OF REFLECTIONS : 45179 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.194 REMARK 3 R VALUE (WORKING SET) : 0.193 REMARK 3 FREE R VALUE : 0.213 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.430 REMARK 3 FREE R VALUE TEST SET COUNT : 2000 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 26.1181 - 4.3612 0.98 3122 145 0.1788 0.1927 REMARK 3 2 4.3612 - 3.4642 1.00 3133 145 0.1684 0.1849 REMARK 3 3 3.4642 - 3.0270 1.00 3088 143 0.1858 0.2121 REMARK 3 4 3.0270 - 2.7506 1.00 3119 144 0.1942 0.2081 REMARK 3 5 2.7506 - 2.5536 1.00 3087 143 0.2049 0.2113 REMARK 3 6 2.5536 - 2.4032 1.00 3118 145 0.2079 0.2299 REMARK 3 7 2.4032 - 2.2829 1.00 3102 143 0.2026 0.2270 REMARK 3 8 2.2829 - 2.1836 1.00 3082 143 0.2073 0.2317 REMARK 3 9 2.1836 - 2.0995 1.00 3089 144 0.1981 0.2123 REMARK 3 10 2.0995 - 2.0271 1.00 3126 144 0.1935 0.2344 REMARK 3 11 2.0271 - 1.9638 1.00 3081 142 0.2025 0.2430 REMARK 3 12 1.9638 - 1.9076 1.00 3054 143 0.2381 0.2890 REMARK 3 13 1.9076 - 1.8574 0.99 3092 142 0.2319 0.2145 REMARK 3 14 1.8574 - 1.8121 0.93 2886 134 0.2225 0.2290 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL 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) : 0.150 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.060 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.75 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 24.94 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 : NULL NULL REMARK 3 ANGLE : NULL NULL REMARK 3 CHIRALITY : NULL NULL REMARK 3 PLANARITY : NULL NULL REMARK 3 DIHEDRAL : NULL NULL 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 6J80 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 30-JAN-19. REMARK 100 THE DEPOSITION ID IS D_1300010603. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-JUL-16 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : NSRRC REMARK 200 BEAMLINE : BL15A1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RAYONIX MX300HE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 45376 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.810 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 (%) : 99.4 REMARK 200 DATA REDUNDANCY : 3.600 REMARK 200 R MERGE (I) : 0.02700 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 38.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.81 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.84 REMARK 200 COMPLETENESS FOR SHELL (%) : 93.7 REMARK 200 DATA REDUNDANCY IN SHELL : 3.20 REMARK 200 R MERGE FOR SHELL (I) : 0.28600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: 2IGI REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 62.05 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.90 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M AMMONIUM CITRATE DIBASIC, 20% REMARK 280 W/V PEG 3350, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298.15K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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 65.03950 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 44.20150 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 65.03950 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 44.20150 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: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 5610 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14370 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -38.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C 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 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 ALA A 36 REMARK 465 ALA A 37 REMARK 465 MET A 50 REMARK 465 THR A 51 REMARK 465 GLY A 52 REMARK 465 LEU A 53 REMARK 465 ASP A 54 REMARK 465 ILE A 55 REMARK 465 GLU A 56 REMARK 465 LYS A 57 REMARK 465 ASP A 58 REMARK 465 GLN A 59 REMARK 465 ASP A 87 REMARK 465 GLU A 88 REMARK 465 LEU A 89 REMARK 465 LEU A 90 REMARK 465 ASP A 91 REMARK 465 SER A 92 REMARK 465 MET A 93 REMARK 465 SER A 94 REMARK 465 ASP A 95 REMARK 465 TRP A 96 REMARK 465 CYS A 97 REMARK 465 LYS A 98 REMARK 465 GLU A 99 REMARK 465 HIS A 100 REMARK 465 HIS A 101 REMARK 465 GLY A 102 REMARK 465 LYS A 103 REMARK 465 SER A 104 REMARK 465 GLY A 105 REMARK 465 LEU A 106 REMARK 465 THR A 107 REMARK 465 LYS A 108 REMARK 465 ALA A 109 REMARK 465 VAL A 110 REMARK 465 LYS A 111 REMARK 465 GLU A 112 REMARK 465 SER A 113 REMARK 465 LYS A 189 REMARK 465 LYS A 190 REMARK 465 ALA A 191 REMARK 465 ALA A 192 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 DT C 6 C3' C1' C7 REMARK 480 DT C 7 C5' C4' C3' N1 C5 REMARK 480 DT C 8 P C2' C2 C4 C5 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 DT C 7 O4' - C1' - N1 ANGL. DEV. = 2.1 DEGREES 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 MG B 302 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU B 49 OE2 REMARK 620 2 HOH B 462 O 130.9 REMARK 620 3 DT C 10 OP1 108.4 112.8 REMARK 620 N 1 2 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue CIT B 301 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG B 302 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for residue MG B 303 DBREF 6J80 A 38 216 UNP Q9Y3B8 ORN_HUMAN 38 216 DBREF 6J80 B 38 216 UNP Q9Y3B8 ORN_HUMAN 38 216 DBREF 6J80 C 4 10 PDB 6J80 6J80 4 10 SEQADV 6J80 ALA A 36 UNP Q9Y3B8 EXPRESSION TAG SEQADV 6J80 ALA A 37 UNP Q9Y3B8 EXPRESSION TAG SEQADV 6J80 ALA A 199 UNP Q9Y3B8 ASP 199 ENGINEERED MUTATION SEQADV 6J80 ALA B 36 UNP Q9Y3B8 EXPRESSION TAG SEQADV 6J80 ALA B 37 UNP Q9Y3B8 EXPRESSION TAG SEQADV 6J80 ALA B 199 UNP Q9Y3B8 ASP 199 ENGINEERED MUTATION SEQRES 1 A 181 ALA ALA SER MET ALA GLN ARG MET VAL TRP VAL ASP LEU SEQRES 2 A 181 GLU MET THR GLY LEU ASP ILE GLU LYS ASP GLN ILE ILE SEQRES 3 A 181 GLU MET ALA CYS LEU ILE THR ASP SER ASP LEU ASN ILE SEQRES 4 A 181 LEU ALA GLU GLY PRO ASN LEU ILE ILE LYS GLN PRO ASP SEQRES 5 A 181 GLU LEU LEU ASP SER MET SER ASP TRP CYS LYS GLU HIS SEQRES 6 A 181 HIS GLY LYS SER GLY LEU THR LYS ALA VAL LYS GLU SER SEQRES 7 A 181 THR ILE THR LEU GLN GLN ALA GLU TYR GLU PHE LEU SER SEQRES 8 A 181 PHE VAL ARG GLN GLN THR PRO PRO GLY LEU CYS PRO LEU SEQRES 9 A 181 ALA GLY ASN SER VAL HIS GLU ASP LYS LYS PHE LEU ASP SEQRES 10 A 181 LYS TYR MET PRO GLN PHE MET LYS HIS LEU HIS TYR ARG SEQRES 11 A 181 ILE ILE ASP VAL SER THR VAL LYS GLU LEU CYS ARG ARG SEQRES 12 A 181 TRP TYR PRO GLU GLU TYR GLU PHE ALA PRO LYS LYS ALA SEQRES 13 A 181 ALA SER HIS ARG ALA LEU ASP ALA ILE SER GLU SER ILE SEQRES 14 A 181 LYS GLU LEU GLN PHE TYR ARG ASN ASN ILE PHE LYS SEQRES 1 B 181 ALA ALA SER MET ALA GLN ARG MET VAL TRP VAL ASP LEU SEQRES 2 B 181 GLU MET THR GLY LEU ASP ILE GLU LYS ASP GLN ILE ILE SEQRES 3 B 181 GLU MET ALA CYS LEU ILE THR ASP SER ASP LEU ASN ILE SEQRES 4 B 181 LEU ALA GLU GLY PRO ASN LEU ILE ILE LYS GLN PRO ASP SEQRES 5 B 181 GLU LEU LEU ASP SER MET SER ASP TRP CYS LYS GLU HIS SEQRES 6 B 181 HIS GLY LYS SER GLY LEU THR LYS ALA VAL LYS GLU SER SEQRES 7 B 181 THR ILE THR LEU GLN GLN ALA GLU TYR GLU PHE LEU SER SEQRES 8 B 181 PHE VAL ARG GLN GLN THR PRO PRO GLY LEU CYS PRO LEU SEQRES 9 B 181 ALA GLY ASN SER VAL HIS GLU ASP LYS LYS PHE LEU ASP SEQRES 10 B 181 LYS TYR MET PRO GLN PHE MET LYS HIS LEU HIS TYR ARG SEQRES 11 B 181 ILE ILE ASP VAL SER THR VAL LYS GLU LEU CYS ARG ARG SEQRES 12 B 181 TRP TYR PRO GLU GLU TYR GLU PHE ALA PRO LYS LYS ALA SEQRES 13 B 181 ALA SER HIS ARG ALA LEU ASP ALA ILE SER GLU SER ILE SEQRES 14 B 181 LYS GLU LEU GLN PHE TYR ARG ASN ASN ILE PHE LYS SEQRES 1 C 7 DT DT DT DT DT DT DT HET CIT B 301 13 HET MG B 302 1 HET MG B 303 1 HETNAM CIT CITRIC ACID HETNAM MG MAGNESIUM ION FORMUL 4 CIT C6 H8 O7 FORMUL 5 MG 2(MG 2+) FORMUL 7 HOH *201(H2 O) HELIX 1 AA1 THR A 116 THR A 132 1 17 HELIX 2 AA2 VAL A 144 MET A 155 1 12 HELIX 3 AA3 MET A 155 HIS A 161 1 7 HELIX 4 AA4 VAL A 169 TYR A 180 1 12 HELIX 5 AA5 TYR A 180 GLU A 185 1 6 HELIX 6 AA6 ARG A 195 PHE A 215 1 21 HELIX 7 AA7 ALA B 37 GLN B 41 1 5 HELIX 8 AA8 PRO B 86 SER B 92 1 7 HELIX 9 AA9 SER B 94 SER B 104 1 11 HELIX 10 AB1 GLY B 105 SER B 113 1 9 HELIX 11 AB2 THR B 116 THR B 132 1 17 HELIX 12 AB3 VAL B 144 MET B 155 1 12 HELIX 13 AB4 MET B 155 HIS B 161 1 7 HELIX 14 AB5 VAL B 169 TYR B 180 1 12 HELIX 15 AB6 TYR B 180 GLU B 185 1 6 HELIX 16 AB7 ARG B 195 PHE B 215 1 21 SHEET 1 AA1 5 ILE A 74 ILE A 83 0 SHEET 2 AA1 5 ILE A 61 THR A 68 -1 N ILE A 67 O LEU A 75 SHEET 3 AA1 5 MET A 43 GLU A 49 -1 N TRP A 45 O LEU A 66 SHEET 4 AA1 5 LEU A 139 GLY A 141 1 O ALA A 140 N VAL A 44 SHEET 5 AA1 5 ILE A 166 ASP A 168 1 O ILE A 167 N LEU A 139 SHEET 1 AA2 5 ILE B 74 ILE B 82 0 SHEET 2 AA2 5 ILE B 60 THR B 68 -1 N ILE B 67 O ALA B 76 SHEET 3 AA2 5 MET B 43 MET B 50 -1 N GLU B 49 O ILE B 61 SHEET 4 AA2 5 LEU B 139 GLY B 141 1 O ALA B 140 N VAL B 44 SHEET 5 AA2 5 ILE B 166 ASP B 168 1 O ILE B 167 N LEU B 139 LINK OE2 GLU B 49 MG MG B 302 1555 1555 2.50 LINK MG MG B 302 O HOH B 462 1555 1555 2.80 LINK MG MG B 302 OP1 DT C 10 1555 1555 2.67 LINK MG MG B 303 O HOH C 107 1555 1555 2.76 SITE 1 AC1 3 GLU B 99 HIS B 100 DT C 8 SITE 1 AC2 4 GLU B 49 HIS B 194 HOH B 462 DT C 10 SITE 1 AC3 4 ASP B 47 DT C 9 DT C 10 HOH C 107 CRYST1 130.079 88.403 45.939 90.00 105.36 90.00 C 1 2 1 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 0.007688 0.000000 0.002111 0.00000 SCALE2 0.000000 0.011312 0.000000 0.00000 SCALE3 0.000000 0.000000 0.022574 0.00000