3GVN - Header Asymmetric Unit

HEADER RNA 31-MAR-09 3GVN

TITLE THE 1.2 ANGSTROEM CRYSTAL STRUCTURE OF AN E.COLI TRNASER TITLE 2 ACCEPTOR STEM MICROHELIX REVEALS TWO MAGNESIUM BINDING TITLE 3 SITES

COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5'-R(*GP*GP*UP*GP*AP*GP*G)-3'; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TRNASER ACCEPTOR STEM MICROHELIX (RS-1661); COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: 5'-R(*CP*CP*UP*CP*AP*CP*C)-3'; COMPND 8 CHAIN: B; COMPND 9 SYNONYM: TRNASER ACCEPTOR STEM MICROHELIX (RS-1661); COMPND 10 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: THIS SEQUENCE OCCURS NATURALLY IN E.COLI.; SOURCE 4 MOL_ID: 2; SOURCE 5 SYNTHETIC: YES; SOURCE 6 OTHER_DETAILS: THIS SEQUENCE OCCURS NATURALLY IN E.COLI.

KEYWDS TRNASER/SERYL-TRNA-SYNTHETASE, TRNA ACCEPTOR STEM KEYWDS 2 MICROHELIX, X-RAY STRUCTURE, IDENTITY ELEMENTS, RNA KEYWDS 3 HYDRATION, MAGNESIUM BINDING SITES

EXPDTA X-RAY DIFFRACTION

AUTHOR A.EICHERT,J.P.FURSTE,A.SCHREIBER,M.PERBANDT,C.BETZEL, AUTHOR 2 V.A.ERDMANN,C.FORSTER

REVDAT 1 28-JUL-09 3GVN 0

JRNL AUTH A.EICHERT,J.P.FURSTE,A.SCHREIBER,M.PERBANDT, JRNL AUTH 2 C.BETZEL,V.A.ERDMANN,C.FORSTER JRNL TITL THE 1.2A CRYSTAL STRUCTURE OF AN E. COLI JRNL TITL 2 TRNASER)ACCEPTOR STEM MICROHELIX REVEALS TWO JRNL TITL 3 MAGNESIUM BINDING SITES. JRNL REF BIOCHEM.BIOPHYS.RES.COMMUN. V. 386 368 2009 JRNL REFN ISSN 0006-291X JRNL PMID 19527687 JRNL DOI 10.1016/J.BBRC.2009.06.048

REMARK 1

REMARK 2 REMARK 2 RESOLUTION. 1.20 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.0 REMARK 3 AUTHORS : MURSHUDOV,VAGIN,DODSON REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 120.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 3 NUMBER OF REFLECTIONS : 12806 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) : NULL REMARK 3 R VALUE (WORKING SET) : 0.190 REMARK 3 FREE R VALUE : 0.201 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 4550 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 REFLECTION IN BIN (WORKING SET) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE SET COUNT : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 0 REMARK 3 NUCLEIC ACID ATOMS : 293 REMARK 3 HETEROGEN ATOMS : 2 REMARK 3 SOLVENT ATOMS : 97 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): NULL REMARK 3 ESU BASED ON FREE R VALUE (A): NULL REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : NULL REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): NULL ; NULL ; NULL REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL 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): NULL ; NULL ; NULL REMARK 3 GENERAL PLANES REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL 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 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED 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 : NULL REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : NULL REMARK 3 ION PROBE RADIUS : NULL REMARK 3 SHRINKAGE RADIUS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 3GVN COMPLIES WITH FORMAT V. 3.20, 01-DEC-08

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 03-APR-09. REMARK 100 THE RCSB ID CODE IS RCSB052363.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-NOV-08 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ELETTRA REMARK 200 BEAMLINE : 5.2R 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 : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12806 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.200 REMARK 200 RESOLUTION RANGE LOW (A) : 120.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 7.100 REMARK 200 R MERGE (I) : 0.07400 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 18.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.22 REMARK 200 COMPLETENESS FOR SHELL (%) : 99.1 REMARK 200 DATA REDUNDANCY IN SHELL : 8.60 REMARK 200 R MERGE FOR SHELL (I) : 0.15400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.800 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: 2V6W REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.79 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.31 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 10% (V/V) MPD, 40MM SODIUM REMARK 280 CACODYLATE, 20MM COBALT HEXAMINE, 80MM SODIUM CHLORIDE, 20MM REMARK 280 MAGNESIUM CHLORIDE, PH 5.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 294K

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 17.89650 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 19.56300 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 17.89650 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 19.56300 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: 700 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 2770 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -3.0 KCAL/MOL 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: 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 G A 1 C2 G A 1 N3 0.109 REMARK 500 G A 1 C5 G A 1 N7 0.082 REMARK 500 G A 1 C8 G A 1 N9 -0.045 REMARK 500 G A 2 C2 G A 2 N3 0.135 REMARK 500 G A 2 C4 G A 2 C5 0.072 REMARK 500 G A 2 C5 G A 2 N7 0.133 REMARK 500 G A 2 N7 G A 2 C8 0.042 REMARK 500 G A 2 O3' U A 3 P -0.095 REMARK 500 G A 4 C2 G A 4 N3 0.115 REMARK 500 G A 4 C4 G A 4 C5 0.080 REMARK 500 G A 4 C5 G A 4 N7 0.126 REMARK 500 G A 4 N7 G A 4 C8 0.045 REMARK 500 G A 6 C2 G A 6 N3 0.122 REMARK 500 G A 6 C4 G A 6 C5 0.066 REMARK 500 G A 6 C5 G A 6 C6 -0.065 REMARK 500 G A 6 C5 G A 6 N7 0.164 REMARK 500 G A 6 N7 G A 6 C8 0.046 REMARK 500 G A 6 C2 G A 6 N2 0.062 REMARK 500 G A 7 C2 G A 7 N3 0.158 REMARK 500 G A 7 N3 G A 7 C4 -0.043 REMARK 500 G A 7 C5 G A 7 N7 0.139 REMARK 500 G A 7 N7 G A 7 C8 0.104 REMARK 500 C B 66 N3 C B 66 C4 -0.054 REMARK 500 C B 66 C4 C B 66 C5 -0.061 REMARK 500 C B 67 C2 C B 67 N3 0.075 REMARK 500 C B 67 N3 C B 67 C4 -0.063 REMARK 500 U B 68 P U B 68 OP2 -0.107 REMARK 500 C B 69 C4 C B 69 N4 0.062 REMARK 500 C B 69 N1 C B 69 C6 -0.046 REMARK 500 C B 69 C2 C B 69 N3 0.058 REMARK 500 C B 69 N3 C B 69 C4 -0.091 REMARK 500 C B 69 C4 C B 69 C5 -0.075 REMARK 500 C B 71 N3 C B 71 C4 -0.059 REMARK 500 C B 71 C4 C B 71 C5 -0.117 REMARK 500 C B 72 N3 C B 72 C4 -0.066 REMARK 500 C B 72 C4 C B 72 C5 -0.059 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 G A 1 C6 - N1 - C2 ANGL. DEV. = -7.5 DEGREES REMARK 500 G A 1 N1 - C2 - N3 ANGL. DEV. = 4.5 DEGREES REMARK 500 G A 1 C2 - N3 - C4 ANGL. DEV. = -3.7 DEGREES REMARK 500 G A 1 C4 - C5 - N7 ANGL. DEV. = -3.9 DEGREES REMARK 500 G A 1 N1 - C2 - N2 ANGL. DEV. = -6.6 DEGREES REMARK 500 G A 1 C5 - C6 - O6 ANGL. DEV. = -4.0 DEGREES REMARK 500 G A 2 C6 - N1 - C2 ANGL. DEV. = -5.2 DEGREES REMARK 500 G A 2 N1 - C2 - N3 ANGL. DEV. = 5.0 DEGREES REMARK 500 G A 2 C4 - C5 - C6 ANGL. DEV. = 4.2 DEGREES REMARK 500 G A 2 C4 - C5 - N7 ANGL. DEV. = -4.3 DEGREES REMARK 500 G A 2 C8 - N9 - C4 ANGL. DEV. = 2.7 DEGREES REMARK 500 G A 2 N1 - C2 - N2 ANGL. DEV. = -7.2 DEGREES REMARK 500 U A 3 O5' - P - OP2 ANGL. DEV. = -6.4 DEGREES REMARK 500 G A 4 C2 - N3 - C4 ANGL. DEV. = -6.0 DEGREES REMARK 500 G A 4 N3 - C4 - C5 ANGL. DEV. = 3.2 DEGREES REMARK 500 G A 4 C4 - C5 - N7 ANGL. DEV. = -3.0 DEGREES REMARK 500 G A 4 C8 - N9 - C4 ANGL. DEV. = 6.7 DEGREES REMARK 500 G A 4 N1 - C6 - O6 ANGL. DEV. = 5.6 DEGREES REMARK 500 G A 4 C5 - C6 - O6 ANGL. DEV. = -5.5 DEGREES REMARK 500 G A 6 C2 - N3 - C4 ANGL. DEV. = -4.0 DEGREES REMARK 500 G A 6 C4 - C5 - N7 ANGL. DEV. = -4.8 DEGREES REMARK 500 G A 6 C5 - N7 - C8 ANGL. DEV. = -3.7 DEGREES REMARK 500 G A 6 N7 - C8 - N9 ANGL. DEV. = 3.7 DEGREES REMARK 500 G A 6 N9 - C4 - C5 ANGL. DEV. = 2.6 DEGREES REMARK 500 G A 6 N1 - C6 - O6 ANGL. DEV. = 4.5 DEGREES REMARK 500 G A 6 C5 - C6 - O6 ANGL. DEV. = -6.6 DEGREES REMARK 500 G A 7 C6 - N1 - C2 ANGL. DEV. = -7.1 DEGREES REMARK 500 G A 7 N1 - C2 - N3 ANGL. DEV. = 3.9 DEGREES REMARK 500 G A 7 C4 - C5 - C6 ANGL. DEV. = 4.6 DEGREES REMARK 500 G A 7 C8 - N9 - C4 ANGL. DEV. = 2.8 DEGREES REMARK 500 G A 7 N9 - C4 - C5 ANGL. DEV. = 2.5 DEGREES REMARK 500 C B 66 N1 - C2 - N3 ANGL. DEV. = -6.0 DEGREES REMARK 500 C B 66 C2 - N3 - C4 ANGL. DEV. = 5.2 DEGREES REMARK 500 C B 67 C6 - N1 - C2 ANGL. DEV. = -7.5 DEGREES REMARK 500 C B 67 C2 - N3 - C4 ANGL. DEV. = 9.2 DEGREES REMARK 500 C B 67 N3 - C4 - C5 ANGL. DEV. = -12.0 DEGREES REMARK 500 C B 67 C4 - C5 - C6 ANGL. DEV. = 7.0 DEGREES REMARK 500 C B 67 C5 - C6 - N1 ANGL. DEV. = 3.4 DEGREES REMARK 500 C B 67 N3 - C4 - N4 ANGL. DEV. = 5.6 DEGREES REMARK 500 C B 67 C5 - C4 - N4 ANGL. DEV. = 6.3 DEGREES REMARK 500 C B 69 C6 - N1 - C2 ANGL. DEV. = -4.4 DEGREES REMARK 500 C B 69 C2 - N3 - C4 ANGL. DEV. = 3.0 DEGREES REMARK 500 C B 69 N3 - C4 - C5 ANGL. DEV. = -8.4 DEGREES REMARK 500 C B 69 C4 - C5 - C6 ANGL. DEV. = 12.5 DEGREES REMARK 500 C B 69 C5 - C6 - N1 ANGL. DEV. = -3.7 DEGREES REMARK 500 C B 69 C5 - C4 - N4 ANGL. DEV. = 10.7 DEGREES REMARK 500 A B 70 C5 - N7 - C8 ANGL. DEV. = 3.1 DEGREES REMARK 500 A B 70 N7 - C8 - N9 ANGL. DEV. = -3.8 DEGREES REMARK 500 C B 71 C6 - N1 - C2 ANGL. DEV. = -4.8 DEGREES REMARK 500 C B 71 C2 - N3 - C4 ANGL. DEV. = 4.6 DEGREES REMARK 500 REMARK 500 THIS ENTRY HAS 54 ANGLE DEVIATIONS. 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 8 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 14 O REMARK 620 2 HOH A 77 O 93.1 REMARK 620 3 HOH A 94 O 90.9 89.1 REMARK 620 4 HOH A 12 O 92.3 174.5 90.9 REMARK 620 5 HOH A 96 O 174.9 91.8 90.6 82.8 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 9 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 21 O REMARK 620 2 HOH A 16 O 91.0 REMARK 620 3 HOH A 15 O 175.6 93.4 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 MG A 8 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 9

REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2V6W RELATED DB: PDB REMARK 900 TRNASER ISOACCEPTOR REMARK 900 RELATED ID: 1SER RELATED DB: PDB REMARK 900 TRNASER ISOACCEPTOR COMPLEXED WITH CORRESPONDING AMINOACYL- REMARK 900 TRNA-SYNTHETASE

DBREF 3GVN A 1 7 PDB 3GVN 3GVN 1 7 DBREF 3GVN B 66 72 PDB 3GVN 3GVN 66 72

SEQRES 1 A 7 G G U G A G G SEQRES 1 B 7 C C U C A C C

HET MG A 8 1 HET MG A 9 1

HETNAM MG MAGNESIUM ION

FORMUL 3 MG 2(MG 2+) FORMUL 5 HOH *97(H2 O)

LINK MG MG A 8 O HOH A 14 1555 1555 2.05 LINK MG MG A 8 O HOH A 77 1555 1555 2.11 LINK MG MG A 8 O HOH A 94 1555 1555 2.18 LINK MG MG A 8 O HOH A 12 1555 1555 2.04 LINK MG MG A 8 O HOH A 96 1555 1555 2.10 LINK MG MG A 9 O HOH A 21 1555 1555 2.10 LINK MG MG A 9 O HOH A 16 1555 1555 2.08 LINK MG MG A 9 O HOH A 15 1555 1555 2.14

SITE 1 AC1 5 HOH A 12 HOH A 14 HOH A 77 HOH A 94 SITE 2 AC1 5 HOH A 96 SITE 1 AC2 7 HOH A 15 HOH A 16 HOH A 21 HOH A 40 SITE 2 AC2 7 HOH B 2 HOH B 46 A B 70

CRYST1 35.793 39.126 31.367 90.00 111.08 90.00 C 1 2 1 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 0.027938 0.000000 0.010769 0.00000

SCALE2 0.000000 0.025558 0.000000 0.00000

SCALE3 0.000000 0.000000 0.034167 0.00000