HEADER RNA 12-APR-21 7ELP TITLE CRYSTAL STRUCTURE OF XANTHINE RIBOSWITCH WITH XANTHINE, IRIDIUM TITLE 2 HEXAMMINE SOAK COMPND MOL_ID: 1; COMPND 2 MOLECULE: NMT1_IR(46-MER); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: IDEONELLA SP. B508-1; SOURCE 3 ORGANISM_TAXID: 137716; SOURCE 4 EXPRESSION_SYSTEM: IN VITRO TRANSCRIPTION VECTOR PT7-TP(DELTAI); SOURCE 5 EXPRESSION_SYSTEM_TAXID: 905931 KEYWDS RNA, RIBOSWITCH, XANTHINE EXPDTA X-RAY DIFFRACTION AUTHOR X.C.XU,A.M.REN REVDAT 2 21-JUL-21 7ELP 1 JRNL REVDAT 1 30-JUN-21 7ELP 0 JRNL AUTH X.XU,M.EGGER,H.CHEN,K.BARTOSIK,R.MICURA,A.REN JRNL TITL INSIGHTS INTO XANTHINE RIBOSWITCH STRUCTURE AND METAL JRNL TITL 2 ION-MEDIATED LIGAND RECOGNITION. JRNL REF NUCLEIC ACIDS RES. V. 49 7139 2021 JRNL REFN ESSN 1362-4962 JRNL PMID 34125892 JRNL DOI 10.1093/NAR/GKAB486 REMARK 2 REMARK 2 RESOLUTION. 2.79 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.18.2_3874 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 : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.79 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 39.73 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 3 NUMBER OF REFLECTIONS : 15338 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.218 REMARK 3 R VALUE (WORKING SET) : 0.215 REMARK 3 FREE R VALUE : 0.274 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.270 REMARK 3 FREE R VALUE TEST SET COUNT : 808 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 39.7300 - 5.0600 0.98 2400 135 0.1904 0.2202 REMARK 3 2 5.0600 - 4.0200 1.00 2439 126 0.2113 0.2882 REMARK 3 3 4.0200 - 3.5100 1.00 2492 126 0.2101 0.3115 REMARK 3 4 3.5100 - 3.1900 1.00 2401 148 0.2575 0.3144 REMARK 3 5 3.1900 - 2.9600 1.00 2448 143 0.2322 0.3185 REMARK 3 6 2.9600 - 2.7900 0.96 2350 130 0.3780 0.4821 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL 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) : 0.420 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 39.610 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 84.65 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 7ELP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 13-APR-21. REMARK 100 THE DEPOSITION ID IS D_1300021255. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-JUL-20 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 : SSRF REMARK 200 BEAMLINE : BL19U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.102 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15338 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.790 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 (%) : 99.8 REMARK 200 DATA REDUNDANCY : 12.50 REMARK 200 R MERGE (I) : 0.13500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 4.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.90 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.2 REMARK 200 DATA REDUNDANCY IN SHELL : 11.60 REMARK 200 R MERGE FOR SHELL (I) : 1.22700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD REMARK 200 SOFTWARE USED: AUTOSOL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.32 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.75 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M MES, PH 6.0, 0.2 M CALCIUM REMARK 280 ACETATE, 10% (V/V) ISOPROPANOL, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 289K 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 39.73250 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 50.09600 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 39.73250 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 50.09600 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: 3330 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 15780 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -129.0 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 APPLY THE FOLLOWING TO CHAINS: B REMARK 350 BIOMT1 2 1.000000 0.000000 0.000000 79.46500 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 80.53400 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 P G B 2 O3' GTP B 101 1.31 REMARK 500 O HOH A 203 O HOH A 221 2.00 REMARK 500 O HOH B 209 O HOH B 214 2.00 REMARK 500 OP2 G A 2 O3' GTP A 101 2.06 REMARK 500 O HOH B 215 O HOH B 220 2.07 REMARK 500 OP2 G B 23 O HOH B 201 2.07 REMARK 500 O HOH B 207 O HOH B 219 2.08 REMARK 500 O HOH A 220 O HOH A 227 2.09 REMARK 500 O HOH B 214 O HOH B 236 2.09 REMARK 500 O6 G A 28 O HOH A 201 2.09 REMARK 500 O HOH A 222 O HOH A 246 2.10 REMARK 500 OP1 G B 2 O3' GTP B 101 2.10 REMARK 500 O HOH B 217 O HOH B 226 2.11 REMARK 500 O HOH B 209 O HOH B 224 2.11 REMARK 500 O HOH B 214 O HOH B 224 2.11 REMARK 500 O HOH B 216 O HOH B 218 2.12 REMARK 500 O5' G B 2 O3' GTP B 101 2.12 REMARK 500 O HOH A 212 O HOH A 245 2.12 REMARK 500 O HOH A 236 O HOH A 241 2.13 REMARK 500 O HOH A 217 O HOH A 239 2.13 REMARK 500 O HOH A 207 O HOH A 226 2.14 REMARK 500 O HOH A 204 O HOH A 210 2.14 REMARK 500 O HOH B 215 O HOH B 223 2.16 REMARK 500 OP1 A A 9 O HOH A 202 2.17 REMARK 500 O HOH A 237 O HOH A 245 2.17 REMARK 500 OP1 C A 34 O HOH A 203 2.17 REMARK 500 O HOH B 201 O HOH B 203 2.18 REMARK 500 O HOH B 213 O HOH B 220 2.19 REMARK 500 O HOH B 224 O HOH B 236 2.19 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 O HOH A 247 O HOH B 228 1657 1.94 REMARK 500 O HOH A 202 O HOH A 225 2655 2.04 REMARK 500 O HOH A 202 O HOH A 202 2655 2.10 REMARK 500 O HOH A 236 O HOH B 216 1657 2.15 REMARK 500 O HOH A 205 O HOH B 211 4554 2.17 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 A 108 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 6 O2' REMARK 620 2 G A 7 OP1 80.5 REMARK 620 3 C A 33 OP1 131.5 98.8 REMARK 620 4 HOH A 211 O 71.2 78.4 61.4 REMARK 620 5 HOH A 218 O 153.7 89.9 26.1 83.0 REMARK 620 6 HOH A 228 O 97.6 154.3 63.3 76.8 80.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 105 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 G A 7 OP2 REMARK 620 2 XAN A 104 O6 105.8 REMARK 620 3 HOH A 204 O 96.5 117.4 REMARK 620 4 HOH A 210 O 166.4 76.8 70.9 REMARK 620 5 HOH A 214 O 122.6 87.1 127.0 70.6 REMARK 620 6 HOH A 216 O 88.7 160.9 72.0 92.1 74.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 107 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 C A 33 O3' REMARK 620 2 C A 34 OP1 45.9 REMARK 620 3 C A 34 OP2 56.8 47.8 REMARK 620 4 G A 36 OP1 77.2 32.0 65.7 REMARK 620 5 HOH A 203 O 57.8 11.9 50.5 20.8 REMARK 620 6 HOH A 215 O 83.4 45.0 86.1 21.1 37.0 REMARK 620 7 HOH A 221 O 56.2 21.3 68.8 25.6 20.4 27.5 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 106 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 38 OP2 REMARK 620 2 HOH A 206 O 100.7 REMARK 620 3 HOH A 213 O 119.2 94.7 REMARK 620 4 HOH A 220 O 89.6 111.4 137.1 REMARK 620 5 HOH A 223 O 84.6 174.6 83.3 67.4 REMARK 620 6 HOH A 227 O 148.9 94.8 85.7 59.6 80.0 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 109 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 205 O REMARK 620 2 HOH A 230 O 74.4 REMARK 620 3 HOH A 234 O 65.4 97.7 REMARK 620 4 HOH A 235 O 90.0 78.1 155.2 REMARK 620 5 HOH A 240 O 116.7 132.4 56.1 142.3 REMARK 620 6 HOH B 211 O 68.7 141.0 78.3 89.6 77.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 110 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 208 O REMARK 620 2 HOH A 229 O 75.0 REMARK 620 3 HOH A 231 O 56.2 63.0 REMARK 620 4 HOH A 242 O 75.7 71.2 119.4 REMARK 620 5 HOH A 243 O 134.2 113.0 168.9 66.1 REMARK 620 6 HOH A 244 O 106.2 48.5 57.5 114.3 111.8 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 111 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 222 O REMARK 620 2 HOH A 232 O 58.2 REMARK 620 3 HOH A 246 O 46.5 47.6 REMARK 620 4 HOH A 248 O 105.9 64.0 61.0 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 112 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 209 O REMARK 620 2 HOH A 241 O 65.6 REMARK 620 3 HOH A 247 O 101.5 66.5 REMARK 620 4 HOH B 222 O 168.1 108.9 66.7 REMARK 620 5 HOH B 228 O 113.9 50.1 43.1 59.1 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 113 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 209 O REMARK 620 2 HOH A 212 O 102.0 REMARK 620 3 HOH A 237 O 74.5 70.9 REMARK 620 4 HOH A 241 O 50.0 146.3 82.1 REMARK 620 5 HOH A 245 O 125.1 48.9 53.5 126.4 REMARK 620 6 HOH B 217 O 153.4 61.8 115.0 151.4 61.9 REMARK 620 7 HOH B 222 O 91.4 115.0 165.7 87.4 140.4 78.6 REMARK 620 8 HOH B 226 O 137.0 111.4 91.4 88.4 67.0 69.3 98.0 REMARK 620 9 HOH B 228 O 88.9 164.3 123.5 48.9 132.0 103.7 52.8 65.2 REMARK 620 N 1 2 3 4 5 6 7 8 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 114 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 217 O REMARK 620 2 HOH A 236 O 66.9 REMARK 620 3 HOH A 237 O 61.1 93.6 REMARK 620 4 HOH A 239 O 58.7 119.2 83.0 REMARK 620 5 HOH B 201 O 155.6 130.2 125.3 97.4 REMARK 620 6 HOH B 216 O 116.0 59.5 147.1 125.3 72.2 REMARK 620 7 HOH B 218 O 78.3 69.5 139.4 74.9 91.5 52.7 REMARK 620 8 HOH B 226 O 127.3 100.4 69.6 133.0 71.4 95.3 147.7 REMARK 620 N 1 2 3 4 5 6 7 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 115 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 224 O REMARK 620 2 HOH A 239 O 69.5 REMARK 620 3 HOH B 201 O 164.0 101.4 REMARK 620 4 HOH B 203 O 132.7 140.5 47.6 REMARK 620 5 HOH B 225 O 64.5 62.3 123.9 150.6 REMARK 620 6 HOH B 227 O 72.4 140.8 113.2 66.2 108.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 116 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 207 O REMARK 620 2 HOH A 226 O 61.8 REMARK 620 3 HOH A 233 O 70.2 87.4 REMARK 620 4 HOH A 238 O 129.1 95.3 63.5 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 106 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 245 O REMARK 620 2 HOH B 203 O 108.5 REMARK 620 3 HOH B 205 O 116.4 108.1 REMARK 620 4 HOH B 227 O 152.5 96.5 63.9 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 105 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 G B 7 OP2 REMARK 620 2 XAN B 103 O6 107.1 REMARK 620 3 HOH B 208 O 70.6 86.1 REMARK 620 4 HOH B 210 O 87.1 145.8 69.2 REMARK 620 5 HOH B 212 O 96.2 78.6 155.9 131.8 REMARK 620 6 HOH B 221 O 143.8 77.3 73.9 73.5 119.6 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 104 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A B 38 OP2 REMARK 620 2 HOH B 213 O 76.8 REMARK 620 3 HOH B 215 O 94.7 70.4 REMARK 620 4 HOH B 220 O 133.0 59.2 57.2 REMARK 620 5 HOH B 223 O 132.9 128.2 66.5 73.7 REMARK 620 6 HOH B 232 O 120.8 87.1 132.5 75.3 101.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG B 107 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH B 209 O REMARK 620 2 HOH B 214 O 59.5 REMARK 620 3 HOH B 233 O 160.0 115.2 REMARK 620 4 HOH B 235 O 49.6 95.7 116.4 REMARK 620 5 HOH B 236 O 80.0 61.7 80.9 66.6 REMARK 620 N 1 2 3 4 DBREF 7ELP A 2 46 PDB 7ELP 7ELP 2 46 DBREF 7ELP B 2 46 PDB 7ELP 7ELP 2 46 SEQRES 1 A 45 G A G U A G A A G C G U U SEQRES 2 A 45 C A G C G G C C G A A A G SEQRES 3 A 45 G C C G C C C G G A A A U SEQRES 4 A 45 U G C U C C SEQRES 1 B 45 G A G U A G A A G C G U U SEQRES 2 B 45 C A G C G G C C G A A A G SEQRES 3 B 45 G C C G C C C G G A A A U SEQRES 4 B 45 U G C U C C HET GTP A 101 32 HET IR A 102 1 HET IR A 103 1 HET XAN A 104 11 HET MG A 105 1 HET MG A 106 1 HET MG A 107 1 HET MG A 108 1 HET MG A 109 1 HET MG A 110 1 HET MG A 111 1 HET MG A 112 1 HET MG A 113 1 HET MG A 114 1 HET MG A 115 1 HET MG A 116 1 HET GTP B 101 32 HET IR B 102 1 HET XAN B 103 11 HET MG B 104 1 HET MG B 105 1 HET MG B 106 1 HET MG B 107 1 HETNAM GTP GUANOSINE-5'-TRIPHOSPHATE HETNAM IR IRIDIUM ION HETNAM XAN XANTHINE HETNAM MG MAGNESIUM ION FORMUL 3 GTP 2(C10 H16 N5 O14 P3) FORMUL 4 IR 3(IR 4+) FORMUL 6 XAN 2(C5 H4 N4 O2) FORMUL 7 MG 16(MG 2+) FORMUL 26 HOH *85(H2 O) LINK P G A 2 O3' GTP A 101 1555 1555 1.68 LINK O2' A A 6 MG MG A 108 1555 1555 2.47 LINK OP2 G A 7 MG MG A 105 1555 1555 1.92 LINK OP1 G A 7 MG MG A 108 1555 1555 1.95 LINK O3' C A 33 MG MG A 107 1555 2655 2.72 LINK OP1 C A 33 MG MG A 108 1555 2655 2.07 LINK OP1 C A 34 MG MG A 107 1555 1555 2.09 LINK OP2 C A 34 MG MG A 107 1555 2655 2.45 LINK OP1 G A 36 MG MG A 107 1555 1555 2.21 LINK OP2 A A 38 MG MG A 106 1555 1555 1.97 LINK O6 XAN A 104 MG MG A 105 1555 1555 2.15 LINK MG MG A 105 O HOH A 204 1555 1555 1.76 LINK MG MG A 105 O HOH A 210 1555 1555 1.92 LINK MG MG A 105 O HOH A 214 1555 1555 2.47 LINK MG MG A 105 O HOH A 216 1555 1555 2.14 LINK MG MG A 106 O HOH A 206 1555 1555 2.35 LINK MG MG A 106 O HOH A 213 1555 1555 1.93 LINK MG MG A 106 O HOH A 220 1555 1555 1.95 LINK MG MG A 106 O HOH A 223 1555 1555 2.29 LINK MG MG A 106 O HOH A 227 1555 1555 2.23 LINK MG MG A 107 O HOH A 203 1555 1555 1.73 LINK MG MG A 107 O HOH A 215 1555 2655 1.73 LINK MG MG A 107 O HOH A 221 1555 1555 2.28 LINK MG MG A 108 O HOH A 211 1555 1555 2.13 LINK MG MG A 108 O HOH A 218 1555 2655 1.98 LINK MG MG A 108 O HOH A 228 1555 2655 1.79 LINK MG MG A 109 O HOH A 205 1555 1555 2.02 LINK MG MG A 109 O HOH A 230 1555 1555 2.31 LINK MG MG A 109 O HOH A 234 1555 1555 2.76 LINK MG MG A 109 O HOH A 235 1555 1555 2.66 LINK MG MG A 109 O HOH A 240 1555 1555 2.39 LINK MG MG A 109 O HOH B 211 1555 4554 1.82 LINK MG MG A 110 O HOH A 208 1555 1555 2.40 LINK MG MG A 110 O HOH A 229 1555 1555 2.88 LINK MG MG A 110 O HOH A 231 1555 1555 2.29 LINK MG MG A 110 O HOH A 242 1555 1555 2.45 LINK MG MG A 110 O HOH A 243 1555 1555 2.06 LINK MG MG A 110 O HOH A 244 1555 1555 2.47 LINK MG MG A 111 O HOH A 222 1555 1555 2.32 LINK MG MG A 111 O HOH A 232 1555 1555 2.57 LINK MG MG A 111 O HOH A 246 1555 1555 2.85 LINK MG MG A 111 O HOH A 248 1555 1555 2.66 LINK MG MG A 112 O HOH A 209 1555 1555 1.96 LINK MG MG A 112 O HOH A 241 1555 1555 2.19 LINK MG MG A 112 O HOH A 247 1555 1555 1.88 LINK MG MG A 112 O HOH B 222 1555 1657 2.13 LINK MG MG A 112 O HOH B 228 1555 1657 2.83 LINK MG MG A 113 O HOH A 209 1555 1555 2.90 LINK MG MG A 113 O HOH A 212 1555 1555 2.59 LINK MG MG A 113 O HOH A 237 1555 1555 2.25 LINK MG MG A 113 O HOH A 241 1555 1555 2.27 LINK MG MG A 113 O HOH A 245 1555 1555 2.53 LINK MG MG A 113 O HOH B 217 1555 1657 1.98 LINK MG MG A 113 O HOH B 222 1555 1657 2.79 LINK MG MG A 113 O HOH B 226 1555 1657 1.70 LINK MG MG A 113 O HOH B 228 1555 1657 2.88 LINK MG MG A 114 O HOH A 217 1555 1555 2.33 LINK MG MG A 114 O HOH A 236 1555 1555 2.01 LINK MG MG A 114 O HOH A 237 1555 1555 2.77 LINK MG MG A 114 O HOH A 239 1555 1555 1.98 LINK MG MG A 114 O HOH B 201 1555 1657 2.91 LINK MG MG A 114 O HOH B 216 1555 1657 2.30 LINK MG MG A 114 O HOH B 218 1555 1657 2.47 LINK MG MG A 114 O HOH B 226 1555 1657 2.15 LINK MG MG A 115 O HOH A 224 1555 1555 2.43 LINK MG MG A 115 O HOH A 239 1555 1555 1.93 LINK MG MG A 115 O HOH B 201 1555 1657 2.83 LINK MG MG A 115 O HOH B 203 1555 1657 2.54 LINK MG MG A 115 O HOH B 225 1555 1657 2.88 LINK MG MG A 115 O HOH B 227 1555 1657 2.80 LINK MG MG A 116 O HOH A 207 1555 1555 2.22 LINK MG MG A 116 O HOH A 226 1555 1555 1.91 LINK MG MG A 116 O HOH A 233 1555 1555 2.31 LINK MG MG A 116 O HOH A 238 1555 1555 1.97 LINK O HOH A 245 MG MG B 106 1453 1555 2.90 LINK OP2 G B 7 MG MG B 105 1555 1555 2.02 LINK OP2 A B 38 MG MG B 104 1555 1555 2.28 LINK O6 XAN B 103 MG MG B 105 1555 1555 2.78 LINK MG MG B 104 O HOH B 213 1555 1555 2.13 LINK MG MG B 104 O HOH B 215 1555 1555 1.98 LINK MG MG B 104 O HOH B 220 1555 1555 2.30 LINK MG MG B 104 O HOH B 223 1555 1555 1.96 LINK MG MG B 104 O HOH B 232 1555 1555 2.28 LINK MG MG B 105 O HOH B 208 1555 1555 2.38 LINK MG MG B 105 O HOH B 210 1555 1555 1.89 LINK MG MG B 105 O HOH B 212 1555 1555 2.68 LINK MG MG B 105 O HOH B 221 1555 1555 2.28 LINK MG MG B 106 O HOH B 203 1555 1555 1.82 LINK MG MG B 106 O HOH B 205 1555 1555 2.16 LINK MG MG B 106 O HOH B 227 1555 1555 2.10 LINK MG MG B 107 O HOH B 209 1555 1555 2.01 LINK MG MG B 107 O HOH B 214 1555 1555 2.02 LINK MG MG B 107 O HOH B 233 1555 1555 2.13 LINK MG MG B 107 O HOH B 235 1555 1555 2.98 LINK MG MG B 107 O HOH B 236 1555 1555 2.05 CRYST1 79.465 100.192 40.267 90.00 90.00 90.00 P 21 21 2 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 0.012584 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009981 0.000000 0.00000 SCALE3 0.000000 0.000000 0.024834 0.00000