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- PDB-216d: CRYSTAL STRUCTURES OF THE B-FORM DNA-RNA CHIMER (5'-D(*IP*)-R(*CP... -

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Basic information

Entry
Database: PDB / ID: 216d
TitleCRYSTAL STRUCTURES OF THE B-FORM DNA-RNA CHIMER (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3') COMPLEXED WITH DISTAMYCIN
ComponentsDNA/RNA (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3')
KeywordsDNA-RNA HYBRID / B-DNA/RNA / DOUBLE HELIX / COMPLEXED WITH DRUG / MODIFIED
Function / homologyDISTAMYCIN A / DNA/RNA hybrid
Function and homology information
MethodX-RAY DIFFRACTION / Resolution: 1.73 Å
AuthorsChen, X. / Ramakrishnan, B. / Sundaralingam, M.
CitationJournal: Nat.Struct.Biol. / Year: 1995
Title: Crystal structures of B-form DNA-RNA chimers complexed with distamycin.
Authors: Chen, X. / Ramakrishnan, B. / Sundaralingam, M.
History
DepositionJul 18, 1995Deposition site: BNL / Processing site: NDB
Revision 1.0Jan 29, 1996Provider: repository / Type: Initial release
Revision 1.1May 22, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 14, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr2_auth_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: DNA/RNA (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)2,8903
Polymers2,3851
Non-polymers5062
Water77543
1
A: DNA/RNA (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3')
hetero molecules

A: DNA/RNA (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)5,7816
Polymers4,7692
Non-polymers1,0124
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_555x,-y,-z+1/21
Unit cell
Length a, b, c (Å)27.920, 27.920, 57.700
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number91
Space group name H-MP4122

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Components

#1: DNA/RNA hybrid DNA/RNA (5'-D(*IP*)-R(*CP*)-D(*IP*CP*IP*CP*IP*C)-3')


Mass: 2384.537 Da / Num. of mol.: 1 / Source method: obtained synthetically
#2: Chemical ChemComp-DMY / DISTAMYCIN A / DISTAMYCIN / STALLIMYCIN / Distamycin


Mass: 481.508 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C22H27N9O4 / Comment: antibiotic*YM
#3: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 43 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.25 Å3/Da / Density % sol: 45.38 %
Crystal growMethod: vapor diffusion, hanging drop / pH: 7 / Details: pH 7.00, VAPOR DIFFUSION, HANGING DROP / Temp details: ROOM TEMPERATURE
Components of the solutions
IDNameCrystal-IDSol-ID
1WATER11
2MPD11
3NA CACODYLATE11
4MGCL211
5WATER12
6MPD12
Crystal grow
*PLUS
pH: 7
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
11 mMDNA1drop
220 mMsodium cacodylate1drop
31 mMdistamycin A hydrochloride1drop
420 mMmagnesium chloride1drop
52.5 %(v/v)MPD1drop
660 %1reservoir

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Data collection

Diffraction sourceSource: ROTATING ANODE
DetectorType: SIEMENS / Detector: AREA DETECTOR
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthRelative weight: 1
ReflectionHighest resolution: 1.73 Å / Num. all: 10170 / Num. obs: 2556 / Observed criterion σ(F): 2
Reflection
*PLUS
Highest resolution: 1.73 Å / % possible obs: 95 % / Observed criterion σ(F): 2 / Num. measured all: 10170

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Processing

SoftwareName: X-PLOR / Classification: refinement
RefinementResolution: 1.73→8 Å / σ(F): 2
RfactorNum. reflection% reflection
Rwork0.152 --
obs0.152 2219 95 %
Refine Biso
ClassRefine-IDDetailsTreatment
ALL ATOMSX-RAY DIFFRACTIONTRisotropic
ALL WATERSX-RAY DIFFRACTIONTRisotropic
Refinement stepCycle: LAST / Resolution: 1.73→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms0 158 36 43 237
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.011
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg3.7
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Refinement
*PLUS
Highest resolution: 1.73 Å / Lowest resolution: 8 Å / σ(F): 2
Solvent computation
*PLUS
Displacement parameters
*PLUS

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