HEADER TRANSCRIPTION/DNA 19-DEC-12 4IHX TITLE CRYSTAL STRUCTURE OF FIS BOUND TO 27 BP 2-AMINOPURINE SUBSTITUTED DNA TITLE 2 F28-2AP (AAATTTGTTTGA2T2TTGAGCAAATTT) COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA-BINDING PROTEIN FIS; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: FACTOR FOR INVERSION STIMULATION; COMPND 5 ENGINEERED: YES; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: 27-BP DNA STRAND A; COMPND 8 CHAIN: C; COMPND 9 ENGINEERED: YES; COMPND 10 MOL_ID: 3; COMPND 11 MOLECULE: 27-BP DNA STRAND B; COMPND 12 CHAIN: D; COMPND 13 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K-12; SOURCE 5 GENE: ECDH1ME8569_3147, ECDH1_0445, FIS; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET11A; SOURCE 11 MOL_ID: 2; SOURCE 12 SYNTHETIC: YES; SOURCE 13 MOL_ID: 3; SOURCE 14 SYNTHETIC: YES KEYWDS PROTEIN-DNA COMPLEX, HTH DOMAIN, MINOR GROOVE COMPRESSION, DNA KEYWDS 2 BENDING, INDIRECT RECOGNITION, TRANSCRIPTION-DNA COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR S.P.HANCOCK,D.CASCIO,R.C.JOHNSON REVDAT 3 31-JUL-13 4IHX 1 JRNL REVDAT 2 22-MAY-13 4IHX 1 JRNL REVDAT 1 01-MAY-13 4IHX 0 JRNL AUTH S.P.HANCOCK,T.GHANE,D.CASCIO,R.ROHS,R.DI FELICE,R.C.JOHNSON JRNL TITL CONTROL OF DNA MINOR GROOVE WIDTH AND FIS PROTEIN BINDING BY JRNL TITL 2 THE PURINE 2-AMINO GROUP. JRNL REF NUCLEIC ACIDS RES. V. 41 6750 2013 JRNL REFN ISSN 0305-1048 JRNL PMID 23661683 JRNL DOI 10.1093/NAR/GKT357 REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (PHENIX.REFINE: 1.8.1_1168) 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) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 78.72 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 15528 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.220 REMARK 3 R VALUE (WORKING SET) : 0.216 REMARK 3 FREE R VALUE : 0.259 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.020 REMARK 3 FREE R VALUE TEST SET COUNT : 1556 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 78.7536 - 6.2260 0.98 1377 155 0.1891 0.2231 REMARK 3 2 6.2260 - 4.9420 0.98 1300 145 0.2199 0.2439 REMARK 3 3 4.9420 - 4.3174 0.99 1265 140 0.1881 0.2384 REMARK 3 4 4.3174 - 3.9226 0.97 1241 139 0.2080 0.2425 REMARK 3 5 3.9226 - 3.6415 0.99 1295 143 0.2169 0.2812 REMARK 3 6 3.6415 - 3.4268 1.00 1266 141 0.2255 0.2878 REMARK 3 7 3.4268 - 3.2552 1.00 1260 141 0.2281 0.2755 REMARK 3 8 3.2552 - 3.1135 0.98 1232 136 0.2555 0.3105 REMARK 3 9 3.1135 - 2.9936 0.98 1248 139 0.2790 0.3217 REMARK 3 10 2.9936 - 2.8903 0.99 1214 135 0.2971 0.3663 REMARK 3 11 2.8903 - 2.8000 1.00 1274 142 0.3157 0.3458 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) : 0.340 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 30.090 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 78.61 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 41.05 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 : 0.010 2755 REMARK 3 ANGLE : 1.483 3942 REMARK 3 CHIRALITY : 0.072 450 REMARK 3 PLANARITY : 0.004 320 REMARK 3 DIHEDRAL : 27.610 1116 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 4IHX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-JAN-13. REMARK 100 THE RCSB ID CODE IS RCSB076773. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-OCT-12 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 24-ID-C REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97910 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL SI(111) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M-F REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15566 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.0 REMARK 200 DATA REDUNDANCY : 5.810 REMARK 200 R MERGE (I) : 0.06100 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 16.4500 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) : 2.87 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.95400 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 2.030 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: PDB ENTRY 3IV5 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 68.38 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.89 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M SODIUM CITRATE, 0.1 M TRIS-HCL, REMARK 280 PH 8.5, 36% PEG400, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE REMARK 280 277K 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 21.56000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 77.01000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 45.79500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 77.01000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.56000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 45.79500 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 10710 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 18450 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -54.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, 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 MET A 1 REMARK 465 PHE A 2 REMARK 465 GLU A 3 REMARK 465 GLN A 4 REMARK 465 ARG A 5 REMARK 465 VAL A 6 REMARK 465 ASN A 7 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 DA C 1 C4' - C3' - C2' ANGL. DEV. = -5.8 DEGREES REMARK 500 DA C 1 C3' - C2' - C1' ANGL. DEV. = -5.9 DEGREES REMARK 500 DA C 1 O4' - C1' - N9 ANGL. DEV. = 3.2 DEGREES REMARK 500 DT C 8 O4' - C4' - C3' ANGL. DEV. = -2.6 DEGREES REMARK 500 DT C 8 O4' - C1' - N1 ANGL. DEV. = 2.2 DEGREES REMARK 500 DT C 9 O4' - C1' - N1 ANGL. DEV. = 2.1 DEGREES REMARK 500 DT C 10 O4' - C1' - N1 ANGL. DEV. = 5.5 DEGREES REMARK 500 DG C 11 O4' - C1' - N9 ANGL. DEV. = 2.3 DEGREES REMARK 500 DT C 17 O4' - C1' - N1 ANGL. DEV. = 2.0 DEGREES REMARK 500 DG C 20 C1' - O4' - C4' ANGL. DEV. = -6.3 DEGREES REMARK 500 DG C 20 O4' - C1' - N9 ANGL. DEV. = 4.7 DEGREES REMARK 500 DA D 1 O4' - C4' - C3' ANGL. DEV. = -2.4 DEGREES REMARK 500 DA D 1 C4' - C3' - C2' ANGL. DEV. = -5.8 DEGREES REMARK 500 DA D 1 C3' - C2' - C1' ANGL. DEV. = -7.1 DEGREES REMARK 500 DC D 8 O4' - C4' - C3' ANGL. DEV. = -4.0 DEGREES REMARK 500 DC D 10 C1' - O4' - C4' ANGL. DEV. = -6.1 DEGREES REMARK 500 DC D 10 O4' - C1' - N1 ANGL. DEV. = 3.4 DEGREES REMARK 500 DA D 11 O4' - C1' - N9 ANGL. DEV. = 3.8 DEGREES REMARK 500 DA D 12 C3' - C2' - C1' ANGL. DEV. = -4.9 DEGREES REMARK 500 DA D 12 O4' - C1' - N9 ANGL. DEV. = 2.1 DEGREES REMARK 500 DT D 13 O4' - C1' - N1 ANGL. DEV. = 2.3 DEGREES REMARK 500 DT D 16 C5 - C4 - O4 ANGL. DEV. = -4.2 DEGREES REMARK 500 DA D 19 O5' - C5' - C4' ANGL. DEV. = -5.3 DEGREES REMARK 500 DT D 25 O4' - C1' - N1 ANGL. DEV. = 5.6 DEGREES 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 ASN A 48 -37.52 -133.17 REMARK 500 ASP A 49 58.31 -140.48 REMARK 500 ASN A 73 93.26 -66.68 REMARK 500 SER B 18 0.59 -64.57 REMARK 500 GLN B 41 6.37 -66.23 REMARK 500 GLN B 45 -177.69 -69.30 REMARK 500 ASN B 48 12.50 -143.54 REMARK 500 ASP B 49 45.28 -152.57 REMARK 500 REMARK 500 REMARK: NULL REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 4IHV RELATED DB: PDB REMARK 900 RELATED ID: 4IHW RELATED DB: PDB REMARK 900 RELATED ID: 4IHY RELATED DB: PDB DBREF 4IHX A 1 98 UNP C9QXL3 C9QXL3_ECOD1 1 98 DBREF 4IHX B 1 98 UNP C9QXL3 C9QXL3_ECOD1 1 98 DBREF 4IHX C 1 27 PDB 4IHX 4IHX 1 27 DBREF 4IHX D 1 27 PDB 4IHX 4IHX 1 27 SEQRES 1 A 98 MET PHE GLU GLN ARG VAL ASN SER ASP VAL LEU THR VAL SEQRES 2 A 98 SER THR VAL ASN SER GLN ASP GLN VAL THR GLN LYS PRO SEQRES 3 A 98 LEU ARG ASP SER VAL LYS GLN ALA LEU LYS ASN TYR PHE SEQRES 4 A 98 ALA GLN LEU ASN GLY GLN ASP VAL ASN ASP LEU TYR GLU SEQRES 5 A 98 LEU VAL LEU ALA GLU VAL GLU GLN PRO LEU LEU ASP MET SEQRES 6 A 98 VAL MET GLN TYR THR ARG GLY ASN GLN THR ARG ALA ALA SEQRES 7 A 98 LEU MET MET GLY ILE ASN ARG GLY THR LEU ARG LYS LYS SEQRES 8 A 98 LEU LYS LYS TYR GLY MET ASN SEQRES 1 B 98 MET PHE GLU GLN ARG VAL ASN SER ASP VAL LEU THR VAL SEQRES 2 B 98 SER THR VAL ASN SER GLN ASP GLN VAL THR GLN LYS PRO SEQRES 3 B 98 LEU ARG ASP SER VAL LYS GLN ALA LEU LYS ASN TYR PHE SEQRES 4 B 98 ALA GLN LEU ASN GLY GLN ASP VAL ASN ASP LEU TYR GLU SEQRES 5 B 98 LEU VAL LEU ALA GLU VAL GLU GLN PRO LEU LEU ASP MET SEQRES 6 B 98 VAL MET GLN TYR THR ARG GLY ASN GLN THR ARG ALA ALA SEQRES 7 B 98 LEU MET MET GLY ILE ASN ARG GLY THR LEU ARG LYS LYS SEQRES 8 B 98 LEU LYS LYS TYR GLY MET ASN SEQRES 1 C 27 DA DA DA DT DT DT DG DT DT DT DG DA 2PR SEQRES 2 C 27 DT 2PR DT DT DG DA DG DC DA DA DA DT DT SEQRES 3 C 27 DT SEQRES 1 D 27 DA DA DA DT DT DT DG DC DT DC DA DA DT SEQRES 2 D 27 2PR DT DT DC DA DA DA DC DA DA DA DT DT SEQRES 3 D 27 DT MODRES 4IHX 2PR C 13 DG MODRES 4IHX 2PR C 15 DG MODRES 4IHX 2PR D 14 DG HET 2PR C 13 21 HET 2PR C 15 21 HET 2PR D 14 21 HETNAM 2PR 2-AMINO-9-[2-DEOXYRIBOFURANOSYL]-9H-PURINE-5'- HETNAM 2 2PR MONOPHOSPHATE HETSYN 2PR 2-AMINOPURINE-2'-DEOXYRIBO-5'-MONOPHOSPHATE FORMUL 3 2PR 3(C10 H14 N5 O6 P) HELIX 1 1 LEU A 27 LEU A 42 1 16 HELIX 2 2 ASP A 49 THR A 70 1 22 HELIX 3 3 ASN A 73 GLY A 82 1 10 HELIX 4 4 ASN A 84 TYR A 95 1 12 HELIX 5 5 VAL B 6 VAL B 10 5 5 HELIX 6 6 LEU B 27 GLN B 41 1 15 HELIX 7 7 ASP B 49 ARG B 71 1 23 HELIX 8 8 ASN B 73 GLY B 82 1 10 HELIX 9 9 ASN B 84 TYR B 95 1 12 SHEET 1 A 2 THR A 12 VAL A 16 0 SHEET 2 A 2 VAL A 22 PRO A 26 -1 O LYS A 25 N VAL A 13 SHEET 1 B 2 THR B 12 VAL B 16 0 SHEET 2 B 2 VAL B 22 PRO B 26 -1 O THR B 23 N THR B 15 LINK O3' DA C 12 P 2PR C 13 1555 1555 1.61 LINK O3' 2PR C 13 P DT C 14 1555 1555 1.61 LINK O3' DT C 14 P 2PR C 15 1555 1555 1.61 LINK O3' 2PR C 15 P DT C 16 1555 1555 1.61 LINK O3' DT D 13 P 2PR D 14 1555 1555 1.61 LINK O3' 2PR D 14 P DT D 15 1555 1555 1.61 CISPEP 1 ASN B 43 GLY B 44 0 -2.06 CRYST1 43.120 91.590 154.020 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 0.023191 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010918 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006493 0.00000 MASTER 290 0 3 9 4 0 0 6 0 0 0 22 END