HEADER RNA 07-JUN-10 3ND4 TITLE WATSON-CRICK 16-MER DSRNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5'-R(*AP*GP*AP*GP*AP*AP*GP*AP*UP*CP*UP*UP*CP*UP*CP*U)-3'; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 OTHER_DETAILS: CONTROL FOR U-HELIX RNA SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: CHEMICALLY SYNTHESIZED KEYWDS DOUBLE-STRANDED RNA, RNA, 16 BASE PAIR RNA EXPDTA X-RAY DIFFRACTION AUTHOR B.H.MOOERS,A.SINGH REVDAT 2 30-NOV-11 3ND4 1 JRNL REVDAT 1 21-SEP-11 3ND4 0 JRNL AUTH B.H.MOOERS,A.SINGH JRNL TITL THE CRYSTAL STRUCTURE OF AN OLIGO(U):PRE-MRNA DUPLEX FROM A JRNL TITL 2 TRYPANOSOME RNA EDITING SUBSTRATE. JRNL REF RNA V. 17 1870 2011 JRNL REFN ISSN 1355-8382 JRNL PMID 21878548 JRNL DOI 10.1261/RNA.2880311 REMARK 2 REMARK 2 RESOLUTION. 1.52 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.6.1_357) REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VICENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE- REMARK 3 : KUNSTLEVE,LI-WEI HUNG,ROBERT IMMORMINO, REMARK 3 : TOM IOERGER,AIRLIE MCCOY,ERIK MCKEE,NIGEL REMARK 3 : MORIARTY,REETAL PAI,RANDY READ,JANE REMARK 3 : RICHARDSON,DAVID RICHARDSON,TOD ROMO,JIM REMARK 3 : SACCHETTINI,NICHOLAS SAUTER,JACOB SMITH, REMARK 3 : LAURENT STORONI,TOM TERWILLIGER,PETER REMARK 3 : ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : ML REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.52 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 18.39 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.370 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.4 REMARK 3 NUMBER OF REFLECTIONS : 6412 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.176 REMARK 3 R VALUE (WORKING SET) : 0.172 REMARK 3 FREE R VALUE : 0.214 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.010 REMARK 3 FREE R VALUE TEST SET COUNT : 642 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 18.3910 - 2.6040 1.00 1222 137 0.1640 0.1830 REMARK 3 2 2.6040 - 2.0680 1.00 1154 127 0.1760 0.2370 REMARK 3 3 2.0680 - 1.8070 1.00 1161 129 0.1750 0.2450 REMARK 3 4 1.8070 - 1.6420 1.00 1125 126 0.1730 0.2280 REMARK 3 5 1.6420 - 1.5240 0.98 1108 123 0.1820 0.2340 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 : 0.46 REMARK 3 B_SOL : 41.55 REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.180 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : NULL REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 17.26 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.03100 REMARK 3 B22 (A**2) : 0.03100 REMARK 3 B33 (A**2) : -0.06200 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 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 : 0.018 383 REMARK 3 ANGLE : 1.614 591 REMARK 3 CHIRALITY : 0.074 79 REMARK 3 PLANARITY : 0.021 16 REMARK 3 DIHEDRAL : 12.291 188 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 3ND4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-JUN-10. REMARK 100 THE RCSB ID CODE IS RCSB059678. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-NOV-08 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RUH3R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : VARIMAX-HF CONFOCAL OPTICAL REMARK 200 SYSTEM REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XSCALE REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 6419 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.524 REMARK 200 RESOLUTION RANGE LOW (A) : 18.390 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.5 REMARK 200 DATA REDUNDANCY : 7.300 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.04100 REMARK 200 FOR THE DATA SET : 26.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.52 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.61 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.1 REMARK 200 DATA REDUNDANCY IN SHELL : 4.60 REMARK 200 R MERGE FOR SHELL (I) : 0.15800 REMARK 200 R SYM FOR SHELL (I) : 0.15800 REMARK 200 FOR SHELL : 4.700 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 37.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.98 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 15 MM MGCL2, 10 MM SPERMINE, 2M REMARK 280 LITHIUM SULFATE, PH 6.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z REMARK 290 3555 -X+Y,-X,Z REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z REMARK 290 6555 -X,-X+Y,-Z REMARK 290 7555 X+2/3,Y+1/3,Z+1/3 REMARK 290 8555 -Y+2/3,X-Y+1/3,Z+1/3 REMARK 290 9555 -X+Y+2/3,-X+1/3,Z+1/3 REMARK 290 10555 Y+2/3,X+1/3,-Z+1/3 REMARK 290 11555 X-Y+2/3,-Y+1/3,-Z+1/3 REMARK 290 12555 -X+2/3,-X+Y+1/3,-Z+1/3 REMARK 290 13555 X+1/3,Y+2/3,Z+2/3 REMARK 290 14555 -Y+1/3,X-Y+2/3,Z+2/3 REMARK 290 15555 -X+Y+1/3,-X+2/3,Z+2/3 REMARK 290 16555 Y+1/3,X+2/3,-Z+2/3 REMARK 290 17555 X-Y+1/3,-Y+2/3,-Z+2/3 REMARK 290 18555 -X+1/3,-X+Y+2/3,-Z+2/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 7 1.000000 0.000000 0.000000 20.54700 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 11.86282 REMARK 290 SMTRY3 7 0.000000 0.000000 1.000000 41.23000 REMARK 290 SMTRY1 8 -0.500000 -0.866025 0.000000 20.54700 REMARK 290 SMTRY2 8 0.866025 -0.500000 0.000000 11.86282 REMARK 290 SMTRY3 8 0.000000 0.000000 1.000000 41.23000 REMARK 290 SMTRY1 9 -0.500000 0.866025 0.000000 20.54700 REMARK 290 SMTRY2 9 -0.866025 -0.500000 0.000000 11.86282 REMARK 290 SMTRY3 9 0.000000 0.000000 1.000000 41.23000 REMARK 290 SMTRY1 10 -0.500000 0.866025 0.000000 20.54700 REMARK 290 SMTRY2 10 0.866025 0.500000 0.000000 11.86282 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 41.23000 REMARK 290 SMTRY1 11 1.000000 0.000000 0.000000 20.54700 REMARK 290 SMTRY2 11 0.000000 -1.000000 0.000000 11.86282 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 41.23000 REMARK 290 SMTRY1 12 -0.500000 -0.866025 0.000000 20.54700 REMARK 290 SMTRY2 12 -0.866025 0.500000 0.000000 11.86282 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 41.23000 REMARK 290 SMTRY1 13 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 13 0.000000 1.000000 0.000000 23.72563 REMARK 290 SMTRY3 13 0.000000 0.000000 1.000000 82.46000 REMARK 290 SMTRY1 14 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 14 0.866025 -0.500000 0.000000 23.72563 REMARK 290 SMTRY3 14 0.000000 0.000000 1.000000 82.46000 REMARK 290 SMTRY1 15 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 15 -0.866025 -0.500000 0.000000 23.72563 REMARK 290 SMTRY3 15 0.000000 0.000000 1.000000 82.46000 REMARK 290 SMTRY1 16 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 16 0.866025 0.500000 0.000000 23.72563 REMARK 290 SMTRY3 16 0.000000 0.000000 -1.000000 82.46000 REMARK 290 SMTRY1 17 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 17 0.000000 -1.000000 0.000000 23.72563 REMARK 290 SMTRY3 17 0.000000 0.000000 -1.000000 82.46000 REMARK 290 SMTRY1 18 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 18 -0.866025 0.500000 0.000000 23.72563 REMARK 290 SMTRY3 18 0.000000 0.000000 -1.000000 82.46000 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: 1680 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 5890 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -24.0 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 -0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 MG MG A 17 LIES ON A SPECIAL POSITION. REMARK 375 K K A 18 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 24 LIES ON A SPECIAL POSITION. REMARK 375 HOH A 25 LIES ON A SPECIAL POSITION. 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 HO2' C A 15 HO2' C A 15 18654 1.22 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 A A 1 N1 - C2 - N3 ANGL. DEV. = 3.0 DEGREES REMARK 500 A A 1 C2 - N3 - C4 ANGL. DEV. = -3.7 DEGREES REMARK 500 G A 4 N1 - C6 - O6 ANGL. DEV. = 3.7 DEGREES REMARK 500 U A 11 N1 - C2 - O2 ANGL. DEV. = -4.3 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 NA A 19 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 219 O REMARK 620 2 HOH A 519 O 94.4 REMARK 620 3 HOH A 319 O 96.8 83.0 REMARK 620 4 HOH A 119 O 174.6 81.1 79.7 REMARK 620 5 HOH A 419 O 96.6 84.5 162.3 86.1 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 17 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 G A 7 OP1 REMARK 620 2 HOH A 117 O 82.6 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 18 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 A A 6 O2' REMARK 620 2 A A 6 O3' 55.8 REMARK 620 3 G A 7 OP1 95.4 45.7 REMARK 620 4 G A 7 O5' 60.6 43.4 43.5 REMARK 620 N 1 2 3 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 17 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 18 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 19 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3ND3 RELATED DB: PDB DBREF 3ND4 A 1 16 PDB 3ND4 3ND4 1 16 SEQRES 1 A 16 A G A G A A G A U C U U C SEQRES 2 A 16 U C U HET MG A 17 1 HET K A 18 1 HET NA A 19 1 HETNAM MG MAGNESIUM ION HETNAM K POTASSIUM ION HETNAM NA SODIUM ION FORMUL 2 MG MG 2+ FORMUL 3 K K 1+ FORMUL 4 NA NA 1+ FORMUL 5 HOH *95(H2 O) LINK NA NA A 19 O HOH A 219 1555 1555 2.16 LINK OP1 G A 7 MG MG A 17 1555 1555 2.17 LINK MG MG A 17 O HOH A 117 1555 1555 2.21 LINK NA NA A 19 O HOH A 519 1555 1555 2.24 LINK NA NA A 19 O HOH A 319 1555 1555 2.39 LINK NA NA A 19 O HOH A 119 1555 1555 2.56 LINK NA NA A 19 O HOH A 419 1555 1555 2.62 LINK O2' A A 6 K K A 18 1555 1555 2.83 LINK O3' A A 6 K K A 18 1555 1555 3.04 LINK OP1 G A 7 K K A 18 1555 1555 3.26 LINK O5' G A 7 K K A 18 1555 1555 3.47 SITE 1 AC1 3 G A 7 K A 18 HOH A 117 SITE 1 AC2 3 A A 6 G A 7 MG A 17 SITE 1 AC3 6 A A 3 HOH A 119 HOH A 219 HOH A 319 SITE 2 AC3 6 HOH A 419 HOH A 519 CRYST1 41.094 41.094 123.690 90.00 90.00 120.00 H 3 2 18 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 0.024334 0.014050 0.000000 0.00000 SCALE2 0.000000 0.028099 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008085 0.00000 MASTER 356 0 3 0 0 0 4 6 0 0 0 2 END