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- PDB-5dxv: Crystal structure of Rethreaded DHFR -

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Basic information

Entry
Database: PDB / ID: 5dxv
TitleCrystal structure of Rethreaded DHFR
Componentsrethreaded DHFR
KeywordsDE NOVO PROTEIN / Protein design
Function / homologyDihydrofolate Reductase, subunit A / Dihydrofolate Reductase, subunit A / 3-Layer(aba) Sandwich / Alpha Beta / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / DI(HYDROXYETHYL)ETHER
Function and homology information
Biological speciessynthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.55 Å
AuthorsFaham, S.
CitationJournal: Sci Rep / Year: 2016
Title: Protein rethreading: A novel approach to protein design.
Authors: Agah, S. / Poulos, S. / Yu, A. / Kucharska, I. / Faham, S.
History
DepositionSep 24, 2015Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 8, 2016Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: rethreaded DHFR
B: rethreaded DHFR
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,8239
Polymers35,6722
Non-polymers1,1517
Water2,756153
1
A: rethreaded DHFR
hetero molecules


Theoretical massNumber of molelcules
Total (without water)18,7835
Polymers17,8361
Non-polymers9474
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: rethreaded DHFR
hetero molecules


Theoretical massNumber of molelcules
Total (without water)18,0404
Polymers17,8361
Non-polymers2043
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)44.817, 120.054, 111.187
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Space group name H-MC2221
Components on special symmetry positions
IDModelComponents
11A-361-

HOH

21A-379-

HOH

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein rethreaded DHFR


Mass: 17836.078 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)

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Non-polymers , 5 types, 160 molecules

#2: Chemical ChemComp-NAP / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE


Mass: 743.405 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H28N7O17P3
#3: Chemical ChemComp-PEG / DI(HYDROXYETHYL)ETHER


Mass: 106.120 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C4H10O3
#4: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C2H6O2
#5: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 153 / 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: 2.1 Å3/Da / Density % sol: 41.33 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / Details: 1.0M LiCl2, 0.1M Sodium acetate, and 30% PEG 6000

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Data collection

DiffractionMean temperature: 103 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 22-ID / Wavelength: 1 Å
DetectorType: MARMOSAIC 300 mm CCD / Detector: CCD / Date: Jun 14, 2015
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.55→30 Å / Num. obs: 40229 / % possible obs: 91.4 % / Redundancy: 5.8 % / Net I/σ(I): 24.9

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Processing

Software
NameVersionClassification
REFMAC5.7.0029refinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing
RefinementResolution: 1.55→30 Å / Cor.coef. Fo:Fc: 0.968 / Cor.coef. Fo:Fc free: 0.954 / SU B: 1.735 / SU ML: 0.063 / Cross valid method: THROUGHOUT / ESU R: 0.091 / ESU R Free: 0.09 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.21433 2025 5 %RANDOM
Rwork0.18485 ---
obs0.1864 38173 91.37 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 31.648 Å2
Baniso -1Baniso -2Baniso -3
1--0.51 Å20 Å2-0 Å2
2---2.26 Å2-0 Å2
3---2.77 Å2
Refinement stepCycle: 1 / Resolution: 1.55→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2312 0 72 153 2537
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0240.0192450
X-RAY DIFFRACTIONr_bond_other_d0.0030.022255
X-RAY DIFFRACTIONr_angle_refined_deg2.2841.9783334
X-RAY DIFFRACTIONr_angle_other_deg1.00535187
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.7355293
X-RAY DIFFRACTIONr_dihedral_angle_2_deg28.1323.571112
X-RAY DIFFRACTIONr_dihedral_angle_3_deg12.80315366
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.5961517
X-RAY DIFFRACTIONr_chiral_restr0.1390.2360
X-RAY DIFFRACTIONr_gen_planes_refined0.0120.0212716
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02562
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.55→1.59 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.292 86 -
Rwork0.239 1541 -
obs--50.97 %

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