HEADER DEOXYRIBONUCLEIC ACID 13-JUN-99 1CQB OBSLTE 20-MAR-00 1CQB 1EKH TITLE D(TTGGCCAA)2 COMPLEXED WITH CHROMOMYCIN AND COBALT(II) COMPND MOL_ID: 1; COMPND 2 MOLECULE: DNA (5'-D(*TP*TP*GP*GP*CP*CP*AP*A)-3'); COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES; COMPND 5 OTHER_DETAILS: TWO MOLECULES OF THE DRUG CHROMOMYCIN A3 COMPND 6 (1GL-2GL-DXB-DDA-DDA-1AR, CHAINS C, AND D) ARE BOUND IN COMPND 7 THE MINOR GROOVE SOURCE MOL_ID: 1; SOURCE 2 SYNTHETIC: YES KEYWDS DNA-DRUG INTERACTION, PARAMAGNETIC NMR, HYPERFINE SHIFTS, KEYWDS 2 DNA STRUCTURE EXPDTA NMR, 6 STRUCTURES AUTHOR K.TU,M.GOCHIN REVDAT 2 20-MAR-00 1CQB 1 OBSLTE REVDAT 1 14-OCT-99 1CQB 0 JRNL AUTH K.TU,M.GOCHIN JRNL TITL STRUCTURE DETERMINATION BY RESTRAINED MOLECULAR JRNL TITL 2 DYNAMICS USING NMR PSEUDOCONTACT SHIFTS AS JRNL TITL 3 EXPERIMENTALLY DETERMINED CONSTRAINTS JRNL REF J.AM.CHEM.SOC. V. 121 9276 1999 JRNL REFN ASTM JACSAT US ISSN 0002-7863 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. NOT APPLICABLE. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REFINEMENT DETAILS CAN BE FOUND IN REMARK 3 THE JRNL CITATION ABOVE REMARK 4 REMARK 4 1CQB COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-JUN-1999. REMARK 100 THE RCSB ID CODE IS RCSB001178. REMARK 105 REMARK 105 THE PROTEIN DATA BANK HAS ADOPTED THE SACCHARIDE CHEMISTS REMARK 105 NOMENCLATURE FOR ATOMS OF THE DEOXYRIBOSE/RIBOSE MOIETY REMARK 105 RATHER THAN THAT OF THE NUCLEOSIDE CHEMISTS. THE RING REMARK 105 OXYGEN ATOM IS LABELLED O4* INSTEAD OF O1*. REMARK 210 REMARK 210 EXPERIMENTAL DETAILS REMARK 210 EXPERIMENT TYPE : NMR REMARK 210 TEMPERATURE (KELVIN) : 298 REMARK 210 PH : 6.5 REMARK 210 IONIC STRENGTH : 100MM NACL REMARK 210 PRESSURE : 1 ATM REMARK 210 SAMPLE CONTENTS : D2O, 90% H2O, 10% D2O REMARK 210 REMARK 210 NMR EXPERIMENTS CONDUCTED : NOESY, COSY, TOCSY REMARK 210 SPECTROMETER FIELD STRENGTH : 500 MHZ REMARK 210 SPECTROMETER MODEL : OMEGA500 REMARK 210 SPECTROMETER MANUFACTURER : GE REMARK 210 REMARK 210 STRUCTURE DETERMINATION. REMARK 210 SOFTWARE USED : X-PLOR REMARK 210 METHOD USED : SIMULATED ANNEALING REMARK 210 REMARK 210 CONFORMERS, NUMBER CALCULATED : 100 REMARK 210 CONFORMERS, NUMBER SUBMITTED : 6 REMARK 210 CONFORMERS, SELECTION CRITERIA : MINIMIZED AVERAGED REMARK 210 COORDINATES FROM 6 RUNS REMARK 210 REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : NULL REMARK 210 REMARK 210 REMARK: THE STRUCTURE WAS DETERMINED USING PSEUDOCONTACT SHIFTS REMARK 210 IN THE NMR SPECTRUM. PSEUDOCONTACT SHIFTS WERE MEASURED AS THE REMARK 210 DIFFERENCE IN THE CHEMICAL SHIFT BETWEEN THE CO(II) COMPLEX REMARK 210 AND THE ZN(II) COMPLEX. IN MODELS 1-3, ONLY SHIFTS WERE USED; REMARK 210 IN MODELS 4-6 SHIFTS + NOE'S WERE USED IN REFINEMENT. REMARK 215 REMARK 215 NMR STUDY REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION REMARK 215 NMR DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE THAT REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON REMARK 215 THESE RECORDS ARE MEANINGLESS. SEQRES 1 A 8 T T G G C C A A SEQRES 1 B 8 T T G G C C A A HET 1GL C 21 24 HET 2GL C 22 24 HET 1AR C 24 29 HET DDA C 25 19 HET DDA C 26 19 HET 1GL D 31 24 HET 2GL D 32 24 HET 1AR D 34 29 HET DDA D 35 19 HET DDA D 36 19 HET CO 41 1 HET DXB C 23 49 HET DXB D 33 49 HETNAM 1GL 4-O-METHYL-2,6-DIDEOXY-ALPHA-D-GALACTO-HEXOPYRANOSE HETNAM 2GL 4-O-ACETYL-2,6-DIDEOXY-ALPHA-D-GALACTO-HEXOPYRANOSE HETNAM 1AR 4-O-ACETYL-2,6-DIDEOXY-3-C-METHYL-ALPHA-L-ARABINO- HETNAM 2 1AR HEXOPYRANOSE HETNAM DDA 2,6-DIDEOXY-BETA-D-GLUCOSE HETNAM CO COBALT (II) ION HETNAM DXB 1,2-HYDRO-1-OXY-3,4-HYDRO-3-(1-METHOXY-2-OXY-3,4- HETNAM 2 DXB DIHYDROXYPENTYL)-8,9-DIHYDROXY-7-METHYL-ANTHRACENE HETSYN DDA 2,6-DIDEOXY-BETA-D-MANNOSE FORMUL 3 1GL 2(C7 H14 O4) FORMUL 3 2GL 2(C8 H14 O5) FORMUL 4 1AR 2(C9 H16 O5) FORMUL 4 DDA 4(C6 H12 O4) FORMUL 7 CO CO 2+ FORMUL 8 DXB 2(C21 H24 O7) LINK C6 DXB C 23 O1 2GL C 22 LINK C2 DXB C 23 O1 DDA C 26 LINK C6 DXB D 33 O1 2GL D 32 LINK C2 DXB D 33 O1 DDA D 36 LINK O1 1GL C 21 C3 2GL C 22 LINK O1 1AR C 24 C3 DDA C 25 LINK O1 DDA C 25 C3 DDA C 26 LINK O1 1GL D 31 C3 2GL D 32 LINK O1 1AR D 34 C3 DDA D 35 LINK O1 DDA D 35 C3 DDA D 36 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 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 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000 MODEL 1