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- PDB-1fmq: Cyclo-butyl-bis-furamidine complexed with dCGCGAATTCGCG -

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Basic information

Entry
Database: PDB / ID: 1fmq
TitleCyclo-butyl-bis-furamidine complexed with dCGCGAATTCGCG
Components5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3'
KeywordsDNA / DNA-drug minor groove complex
Function / homologyChem-D34 / DNA / DNA (> 10)
Function and homology information
MethodX-RAY DIFFRACTION / Resolution: 2 Å
AuthorsSimpson, I.J. / Lee, M. / Kumar, A. / Boykin, D.W. / Neidle, S.
CitationJournal: Bioorg.Med.Chem.Lett. / Year: 2000
Title: DNA minor groove interactions and the biological activity of 2,5-bis-[4-(N-alkylamidino)phenyl] furans
Authors: Simpson, I.J. / Lee, M. / Kumar, A. / Boykin, D.W. / Neidle, S.
History
DepositionAug 18, 2000Deposition site: NDB / Processing site: NDB
Revision 1.0Sep 11, 2000Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 4, 2017Group: Refinement description / Category: software
Revision 1.4Feb 7, 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: 5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3'
B: 5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3'
hetero molecules


Theoretical massNumber of molelcules
Total (without water)7,7684
Polymers7,3272
Non-polymers4412
Water1,74797
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)24.86, 40.71, 66.44
Angle α, β, γ (deg.)90., 90., 90.
Int Tables number19
Cell settingorthorhombic
Space group name H-MP212121

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Components

#1: DNA chain 5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3'


Mass: 3663.392 Da / Num. of mol.: 2 / Source method: obtained synthetically
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-D34 / 2,5-BIS{[4-(N-CYCLOBUTYLDIAMINOMETHYL)PHENYL]}FURAN


Mass: 416.558 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C26H32N4O
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 97 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.2 Å3/Da / Density % sol: 44.05 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop / pH: 7
Details: MgCl2 2ul 125mM, Spermine 1ul 7.5 mM, Oligonucleotide 2ul 2mM, Drug 2ul 2mM, MPD 3ul 27% v/v, VAPOR DIFFUSION, SITTING DROP, temperature 291K
Components of the solutions
IDNameCrystal-IDSol-ID
1MgCl211
2Spermine11
3MPD11
4MPD12
Crystal grow
*PLUS
Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDCrystal-ID
11
21
31
41

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Data collection

DiffractionMean temperature: 291 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418
DetectorType: RIGAKU RAXIS IIC / Detector: IMAGE PLATE
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2→10 Å / Num. obs: 4992 / % possible obs: 95.4 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 1 / Redundancy: 5 % / Rmerge(I) obs: 0.045

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Processing

Software
NameClassification
SCALEPACKdata scaling
X-PLORmodel building
SHELXrefinement
X-PLORphasing
SHELXL-97refinement
RefinementResolution: 2→8 Å / Cross valid method: THROUGHOUT / σ(F): 2 / Stereochemistry target values: Parkinson et al.
RfactorNum. reflection% reflectionSelection details
Rfree0.209 250 5 %random
all0.193 ---
obs0.188 4992 95.4 %-
Refinement stepCycle: LAST / Resolution: 2→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms0 486 38 91 615
Software
*PLUS
Name: SHELX / Classification: refinement
Refinement
*PLUS
Highest resolution: 2 Å / Lowest resolution: 8 Å / σ(F): 2 / % reflection Rfree: 5 % / Rfactor Rwork: 0.188
Solvent computation
*PLUS
Displacement parameters
*PLUS

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