HEADER REPLICATION INHIBITOR/DNA 15-MAY-02 1LRR TITLE CRYSTAL STRUCTURE OF E. COLI SEQA COMPLEXED WITH HEMIMETHYLATED DNA COMPND MOL_ID: 1; COMPND 2 MOLECULE: 5'-D(*CP*AP*CP*CP*GP*AP*TP*CP*GP*AP*CP*T)-3'; COMPND 3 CHAIN: B, E; COMPND 4 ENGINEERED: YES; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: 5'-D(*AP*GP*TP*CP*GP*(6MA)P*TP*CP*GP*GP*TP*G)-3'; COMPND 7 CHAIN: C, F; COMPND 8 ENGINEERED: YES; COMPND 9 MOL_ID: 3; COMPND 10 MOLECULE: SEQA PROTEIN; COMPND 11 CHAIN: A, D; COMPND 12 FRAGMENT: RESIDUES 51-181; COMPND 13 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES; SOURCE 3 OTHER_DETAILS: SYNTHETIC OLIGONUCLOTIDE; SOURCE 4 MOL_ID: 2; SOURCE 5 SYNTHETIC: YES; SOURCE 6 OTHER_DETAILS: SYNTHETIC OLIGONUCLOTIDE; SOURCE 7 MOL_ID: 3; SOURCE 8 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 9 ORGANISM_TAXID: 562; SOURCE 10 GENE: SEQA; SOURCE 11 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 12 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 13 EXPRESSION_SYSTEM_STRAIN: BL834(DE3); SOURCE 14 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 15 EXPRESSION_SYSTEM_PLASMID: PET11A KEYWDS PROTEIN-DNA COMPLEX, REPLICATION, METHYLATED GATC, REPLICATION KEYWDS 2 INHIBITOR-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR A.GUARNE,Q.ZHAO,R.GUIRLANDO,W.YANG REVDAT 5 03-APR-24 1LRR 1 REMARK REVDAT 4 14-FEB-24 1LRR 1 LINK REVDAT 3 29-MAY-13 1LRR 1 HETATM VERSN REVDAT 2 24-FEB-09 1LRR 1 VERSN REVDAT 1 11-DEC-02 1LRR 0 JRNL AUTH A.GUARNE,Q.ZHAO,R.GUIRLANDO,W.YANG JRNL TITL INSIGHTS INTO NEGATIVE MODULATION OF E. COLI REPLICATION JRNL TITL 2 INITIATION FROM THE STRUCTURE OF SEQA-HEMIMETHYLATED DNA JRNL TITL 3 COMPLEX JRNL REF NAT.STRUCT.BIOL. V. 9 839 2002 JRNL REFN ISSN 1072-8368 JRNL PMID 12379844 REMARK 2 REMARK 2 RESOLUTION. 2.65 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.65 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 23.91 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.2 REMARK 3 NUMBER OF REFLECTIONS : 16158 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 SET) : 0.248 REMARK 3 FREE R VALUE : 0.278 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 6.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1110 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 8 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.65 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.77 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.90 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1857 REMARK 3 BIN R VALUE (WORKING SET) : 0.4980 REMARK 3 BIN FREE R VALUE : 0.5210 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 7.20 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 144 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.043 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1884 REMARK 3 NUCLEIC ACID ATOMS : 974 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 37 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 71.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 62.11 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.74000 REMARK 3 B22 (A**2) : -0.74000 REMARK 3 B33 (A**2) : 1.47000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.41 REMARK 3 ESD FROM SIGMAA (A) : 0.38 REMARK 3 LOW RESOLUTION CUTOFF (A) : 3.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.44 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.58 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.300 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : CNS BULK SOLVENT MODEL USED REMARK 3 KSOL : 0.30 REMARK 3 BSOL : 39.10 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : DNA-RNA_REP.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : DNA-RNA.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1LRR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-JUN-02. REMARK 100 THE DEPOSITION ID IS D_1000016225. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-APR-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NI FILTER REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16187 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.650 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 3.200 REMARK 200 R MERGE (I) : 0.08700 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 14.6000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.65 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.70 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.5 REMARK 200 DATA REDUNDANCY IN SHELL : 2.90 REMARK 200 R MERGE FOR SHELL (I) : 0.35500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.300 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: SEQA-C REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.60 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.07 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4000, LITHIUM SULPHATE, TRIS-HCL, REMARK 280 PH 8.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 42 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 -Y,X,Z+1/2 REMARK 290 4555 Y,-X,Z+1/2 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 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 24.53900 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 24.53900 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 APPLY THE FOLLOWING TO CHAINS: B, C, 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: E, F, D 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 VAL A 51 REMARK 465 ALA A 52 REMARK 465 SER A 53 REMARK 465 PRO A 54 REMARK 465 ALA A 55 REMARK 465 ILE A 56 REMARK 465 VAL A 57 REMARK 465 GLU A 58 REMARK 465 ALA A 59 REMARK 465 LYS A 60 REMARK 465 PRO A 61 REMARK 465 VAL A 62 REMARK 465 LYS A 63 REMARK 465 VAL D 51 REMARK 465 ALA D 52 REMARK 465 SER D 53 REMARK 465 PRO D 54 REMARK 465 ALA D 55 REMARK 465 ILE D 56 REMARK 465 VAL D 57 REMARK 465 GLU D 58 REMARK 465 ALA D 59 REMARK 465 LYS D 60 REMARK 465 PRO D 61 REMARK 465 VAL D 62 REMARK 465 LYS D 63 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 OP1 DT C 3 O HOH C 40 2.12 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 ASP A 102 95.56 -165.81 REMARK 500 ASN A 133 -90.50 -60.96 REMARK 500 ASP D 102 81.87 -170.47 REMARK 500 GLN D 134 33.08 -89.19 REMARK 500 REMARK 500 REMARK: NULL DBREF 1LRR A 51 181 UNP P36658 SEQA_ECOLI 51 181 DBREF 1LRR D 51 181 UNP P36658 SEQA_ECOLI 51 181 DBREF 1LRR B 1 12 PDB 1LRR 1LRR 1 12 DBREF 1LRR C 1 12 PDB 1LRR 1LRR 1 12 DBREF 1LRR E 1 12 PDB 1LRR 1LRR 1 12 DBREF 1LRR F 1 12 PDB 1LRR 1LRR 1 12 SEQRES 1 B 12 DC DA DC DC DG DA DT DC DG DA DC DT SEQRES 1 C 12 DA DG DT DC DG 6MA DT DC DG DG DT DG SEQRES 1 E 12 DC DA DC DC DG DA DT DC DG DA DC DT SEQRES 1 F 12 DA DG DT DC DG 6MA DT DC DG DG DT DG SEQRES 1 A 131 VAL ALA SER PRO ALA ILE VAL GLU ALA LYS PRO VAL LYS SEQRES 2 A 131 THR ILE LYS ASP LYS VAL ARG ALA MET ARG GLU LEU LEU SEQRES 3 A 131 LEU SER ASP GLU TYR ALA GLU GLN LYS ARG ALA VAL ASN SEQRES 4 A 131 ARG PHE MET LEU LEU LEU SER THR LEU TYR SER LEU ASP SEQRES 5 A 131 ALA GLN ALA PHE ALA GLU ALA THR GLU SER LEU HIS GLY SEQRES 6 A 131 ARG THR ARG VAL TYR PHE ALA ALA ASP GLU GLN THR LEU SEQRES 7 A 131 LEU LYS ASN GLY ASN GLN THR LYS PRO LYS HIS VAL PRO SEQRES 8 A 131 GLY THR PRO TYR TRP VAL ILE THR ASN THR ASN THR GLY SEQRES 9 A 131 ARG LYS CYS SER MET ILE GLU HIS ILE MET GLN SER MET SEQRES 10 A 131 GLN PHE PRO ALA GLU LEU ILE GLU LYS VAL CYS GLY THR SEQRES 11 A 131 ILE SEQRES 1 D 131 VAL ALA SER PRO ALA ILE VAL GLU ALA LYS PRO VAL LYS SEQRES 2 D 131 THR ILE LYS ASP LYS VAL ARG ALA MET ARG GLU LEU LEU SEQRES 3 D 131 LEU SER ASP GLU TYR ALA GLU GLN LYS ARG ALA VAL ASN SEQRES 4 D 131 ARG PHE MET LEU LEU LEU SER THR LEU TYR SER LEU ASP SEQRES 5 D 131 ALA GLN ALA PHE ALA GLU ALA THR GLU SER LEU HIS GLY SEQRES 6 D 131 ARG THR ARG VAL TYR PHE ALA ALA ASP GLU GLN THR LEU SEQRES 7 D 131 LEU LYS ASN GLY ASN GLN THR LYS PRO LYS HIS VAL PRO SEQRES 8 D 131 GLY THR PRO TYR TRP VAL ILE THR ASN THR ASN THR GLY SEQRES 9 D 131 ARG LYS CYS SER MET ILE GLU HIS ILE MET GLN SER MET SEQRES 10 D 131 GLN PHE PRO ALA GLU LEU ILE GLU LYS VAL CYS GLY THR SEQRES 11 D 131 ILE MODRES 1LRR 6MA C 6 A MODRES 1LRR 6MA F 6 A HET 6MA C 6 22 HET 6MA F 6 22 HETNAM 6MA N6-METHYL-DEOXY-ADENOSINE-5'-MONOPHOSPHATE FORMUL 2 6MA 2(C11 H16 N5 O6 P) FORMUL 7 HOH *37(H2 O) HELIX 1 1 THR A 64 SER A 78 1 15 HELIX 2 2 SER A 78 GLN A 84 1 7 HELIX 3 3 ARG A 86 ASP A 102 1 17 HELIX 4 4 ASP A 102 SER A 112 1 11 HELIX 5 5 ASP A 124 GLY A 132 1 9 HELIX 6 6 ASN A 152 MET A 167 1 16 HELIX 7 7 PRO A 170 GLY A 179 1 10 HELIX 8 8 THR D 64 SER D 78 1 15 HELIX 9 9 SER D 78 GLU D 83 1 6 HELIX 10 10 ARG D 86 ASP D 102 1 17 HELIX 11 11 ASP D 102 SER D 112 1 11 HELIX 12 12 ASP D 124 ASN D 131 1 8 HELIX 13 13 ASN D 152 MET D 167 1 16 HELIX 14 14 PRO D 170 GLY D 179 1 10 SHEET 1 A 3 PHE A 121 ALA A 122 0 SHEET 2 A 3 TRP A 146 VAL A 147 -1 O TRP A 146 N ALA A 122 SHEET 3 A 3 LYS A 138 HIS A 139 -1 N LYS A 138 O VAL A 147 SHEET 1 B 3 PHE D 121 ALA D 122 0 SHEET 2 B 3 TRP D 146 VAL D 147 -1 O TRP D 146 N ALA D 122 SHEET 3 B 3 LYS D 138 HIS D 139 -1 N LYS D 138 O VAL D 147 LINK O3' DG C 5 P 6MA C 6 1555 1555 1.58 LINK O3' 6MA C 6 P DT C 7 1555 1555 1.61 LINK O3' DG F 5 P 6MA F 6 1555 1555 1.59 LINK O3' 6MA F 6 P DT F 7 1555 1555 1.61 CRYST1 106.493 106.493 49.078 90.00 90.00 90.00 P 42 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 0.009390 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009390 0.000000 0.00000 SCALE3 0.000000 0.000000 0.020376 0.00000