PDB Short entry for 1R3G HEADER DNA 01-OCT-03 1R3G TITLE 1.16A X-RAY STRUCTURE OF THE SYNTHETIC DNA FRAGMENT WITH THE TITLE 2 INCORPORATED 2'-O-[(2-GUANIDINIUM)ETHYL]-5-METHYLURIDINE RESIDUES COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5'-D(*GP*CP*GP*TP*AP*(GMU)P*AP*CP*GP*C)-3'); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES KEYWDS DNA EXPDTA X-RAY DIFFRACTION AUTHOR T.P.PRAKASH,A.PUSCHL,E.LESNIK,V.TERESHKO,M.EGLI,M.MANOHARAN REVDAT 5 14-FEB-24 1R3G 1 REMARK LINK REVDAT 4 07-JUL-09 1R3G 1 REMARK REVDAT 3 24-FEB-09 1R3G 1 VERSN REVDAT 2 08-JUN-04 1R3G 1 JRNL REVDAT 1 21-OCT-03 1R3G 0 JRNL AUTH T.P.PRAKASH,E.LESNIK,V.MOHAN,V.TERESHKO,M.EGLI,M.MANOHARAN JRNL TITL 2'-O-[2-(GUANIDINIUM)ETHYL]-MODIFIED OLIGONUCLEOTIDES: JRNL TITL 2 STABILIZING EFFECT ON DUPLEX AND TRIPLEX STRUCTURES. JRNL REF ORG.LETT. V. 6 1971 2004 JRNL REFN ISSN 1523-7060 JRNL PMID 15176796 JRNL DOI 10.1021/OL0493249 REMARK 2 REMARK 2 RESOLUTION. 1.16 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.1.9999 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) : 1.16 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 20.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 3 NUMBER OF REFLECTIONS : 16535 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) : 0.134 REMARK 3 R VALUE (WORKING SET) : 0.132 REMARK 3 FREE R VALUE : 0.174 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 891 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) : 1.16 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.19 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1136 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.1800 REMARK 3 BIN FREE R VALUE SET COUNT : 69 REMARK 3 BIN FREE R VALUE : 0.2460 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 0 REMARK 3 NUCLEIC ACID ATOMS : 418 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 153 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 16.67 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.29000 REMARK 3 B22 (A**2) : 0.15000 REMARK 3 B33 (A**2) : -0.44000 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): 0.035 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.039 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.023 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.117 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.984 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.974 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 466 ; 0.020 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): 194 ; 0.009 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 716 ; 1.982 ; 2.112 REMARK 3 BOND ANGLES OTHERS (DEGREES): 486 ; 1.267 ; 2.004 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 80 ; 0.107 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 216 ; 0.031 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 70 ; 0.179 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 200 ; 0.239 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): 81 ; 0.074 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 117 ; 0.347 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): 1 ; 0.000 ; 0.200 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): 5 ; 0.248 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 44 ; 0.182 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 15 ; 0.298 ; 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): 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): 668 ; 3.047 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 712 ; 3.930 ; 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): 668 ; 2.209 ; 3.000 REMARK 3 SPHERICITY; FREE ATOMS (A**2): 92 ;11.381 ; 3.000 REMARK 3 SPHERICITY; BONDED ATOMS (A**2): 418 ; 7.752 ; 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 : 1 REMARK 3 REMARK 3 TLS GROUP : 1 REMARK 3 NUMBER OF COMPONENTS GROUP : 1 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 1 B 351 REMARK 3 ORIGIN FOR THE GROUP (A): 3.1610 1.9710 11.2670 REMARK 3 T TENSOR REMARK 3 T11: -0.0094 T22: 0.0022 REMARK 3 T33: -0.0094 T12: -0.0076 REMARK 3 T13: 0.0030 T23: 0.0063 REMARK 3 L TENSOR REMARK 3 L11: 0.0216 L22: 1.7930 REMARK 3 L33: 0.9385 L12: -0.0828 REMARK 3 L13: 0.0694 L23: 0.7607 REMARK 3 S TENSOR REMARK 3 S11: 0.0287 S12: 0.0480 S13: -0.0098 REMARK 3 S21: 0.0730 S22: -0.0280 S23: -0.0443 REMARK 3 S31: 0.0465 S32: 0.0023 S33: -0.0008 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 1R3G COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-OCT-03. REMARK 100 THE DEPOSITION ID IS D_1000020389. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-JAN-99 REMARK 200 TEMPERATURE (KELVIN) : 100.0 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 5ID-B REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.000 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 17426 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.160 REMARK 200 RESOLUTION RANGE LOW (A) : 19.500 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.4 REMARK 200 DATA REDUNDANCY : 5.000 REMARK 200 R MERGE (I) : 0.06000 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL 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: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 34.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.88 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: VAPOR DIFFUSION, HANGING DROP REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 12.55550 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 22.77900 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 21.57550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 22.77900 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 12.55550 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 21.57550 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 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 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 HOH A 238 O HOH A 267 2.15 REMARK 500 REMARK 500 REMARK: NULL 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 DC B 12 P DC B 12 O5' -0.060 REMARK 500 DC B 12 O3' DC B 12 C3' -0.074 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 DC A 10 O4' - C4' - C3' ANGL. DEV. = -2.4 DEGREES REMARK 500 DG B 11 O4' - C1' - N9 ANGL. DEV. = 7.0 DEGREES REMARK 500 DG B 11 C8 - N9 - C4 ANGL. DEV. = -3.3 DEGREES REMARK 500 DT B 14 C4' - C3' - C2' ANGL. DEV. = -4.8 DEGREES REMARK 500 DA B 15 N1 - C2 - N3 ANGL. DEV. = -3.6 DEGREES REMARK 500 DG B 19 O4' - C1' - N9 ANGL. DEV. = 1.9 DEGREES REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 DG B 19 0.06 SIDE CHAIN 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 101 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 102 O REMARK 620 2 HOH A 104 O 96.9 REMARK 620 3 HOH A 105 O 79.4 172.1 REMARK 620 4 HOH A 106 O 86.6 100.9 72.0 REMARK 620 5 HOH B 103 O 168.6 89.3 93.2 82.8 REMARK 620 6 HOH B 107 O 97.9 89.2 98.2 168.4 91.7 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 MG A 101 DBREF 1R3G A 1 10 PDB 1R3G 1R3G 1 10 DBREF 1R3G B 11 20 PDB 1R3G 1R3G 11 20 SEQRES 1 A 10 DG DC DG DT DA GMU DA DC DG DC SEQRES 1 B 10 DG DC DG DT DA GMU DA DC DG DC MODRES 1R3G GMU A 6 DU MODRES 1R3G GMU B 16 DU HET GMU A 6 27 HET GMU B 16 27 HET MG A 101 1 HETNAM GMU 2'-O-[(2-GUANIDINIUM)ETHYL]-5-METHYLURIDINE 5'- HETNAM 2 GMU MONOPHOSPHATE HETNAM MG MAGNESIUM ION FORMUL 1 GMU 2(C13 H24 N5 O9 P) FORMUL 3 MG MG 2+ FORMUL 4 HOH *153(H2 O) LINK O3' DA A 5 P GMU A 6 1555 1555 1.61 LINK O3' GMU A 6 P DA A 7 1555 1555 1.62 LINK O3' DA B 15 P GMU B 16 1555 1555 1.61 LINK O3' GMU B 16 P DA B 17 1555 1555 1.60 LINK MG MG A 101 O HOH A 102 1555 1555 1.94 LINK MG MG A 101 O HOH A 104 1555 1555 2.24 LINK MG MG A 101 O HOH A 105 1555 1555 1.97 LINK MG MG A 101 O HOH A 106 1555 1555 2.21 LINK MG MG A 101 O HOH B 103 1555 1555 1.96 LINK MG MG A 101 O HOH B 107 1555 1555 1.94 SITE 1 AC1 6 HOH A 102 HOH A 104 HOH A 105 HOH A 106 SITE 2 AC1 6 HOH B 103 HOH B 107 CRYST1 25.111 43.151 45.558 90.00 90.00 90.00 P 21 21 21 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 0.039823 0.000000 0.000000 0.00000 SCALE2 0.000000 0.023174 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021950 0.00000