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- PDB-1vc9: Crystal Structure of a T.thermophilus HB8 Ap6A hydrolase E50Q mut... -

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Basic information

Entry
Database: PDB / ID: 1vc9
TitleCrystal Structure of a T.thermophilus HB8 Ap6A hydrolase E50Q mutant-Mg2+-ATP complex
ComponentsNdx1
KeywordsHYDROLASE / Nudix protein / diadenosine polyphosphate / Ap6A / Thermus thermophilus HB8 / RIKEN Structural Genomics/Proteomics Initiative / RSGI / Structural Genomics
Function / homology
Function and homology information


AMP biosynthetic process / bis(5'-nucleosyl)-tetraphosphatase (asymmetrical) activity / diadenosine hexaphosphate hydrolase (ATP-forming) / ATP biosynthetic process / hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides / ATP binding / metal ion binding
Similarity search - Function
NUDIX hydrolase / NUDIX hydrolase, conserved site / Nudix box signature. / Nucleoside Triphosphate Pyrophosphohydrolase / Nucleoside Triphosphate Pyrophosphohydrolase / NUDIX domain / Nudix hydrolase domain profile. / NUDIX hydrolase domain / NUDIX hydrolase-like domain superfamily / Alpha-Beta Complex / Alpha Beta
Similarity search - Domain/homology
ADENOSINE-5'-TRIPHOSPHATE / Diadenosine hexaphosphate hydrolase
Similarity search - Component
Biological speciesThermus thermophilus (bacteria)
MethodX-RAY DIFFRACTION / MAD / Resolution: 2.3 Å
AuthorsIwai, T. / Nakagawa, N. / Kuramitsu, S. / Masui, R. / RIKEN Structural Genomics/Proteomics Initiative (RSGI)
CitationJournal: To be Published
Title: Crystal Structure of Nudix Protein Ndx1 from Thermus thermophilus HB8 in binary complex with diadenosine hexaphosphate
Authors: Iwai, T. / Nakagawa, N. / Kuramitsu, S. / Masui, R.
History
DepositionMar 5, 2004Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Apr 26, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Source and taxonomy / Version format compliance
Revision 1.3Nov 10, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / 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_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Dec 27, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Ndx1
B: Ndx1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,4095
Polymers28,3712
Non-polymers1,0393
Water2,144119
1
A: Ndx1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)14,7173
Polymers14,1851
Non-polymers5312
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: Ndx1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)14,6922
Polymers14,1851
Non-polymers5071
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)47.900, 55.121, 113.869
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Ndx1 / MutT/nudix family protein


Mass: 14185.270 Da / Num. of mol.: 2 / Mutation: E50Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Thermus thermophilus (bacteria) / Strain: HB8 / Gene: ndx1 / Plasmid: PET11A / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: Q75UV1
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Comment: ATP, energy-carrying molecule*YM
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 119 / 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: 2.46 Å3/Da / Density % sol: 49.57 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 8.5
Details: 0.1M Tris-HCl, 5mM MgCl2, 0.2M NaCl, 25%(w/v) PEG 3350, 4mM Ap6A, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 8.5

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU FR-E / Wavelength: 1.5418, 0.9792, 0.9798, 0.9819
DetectorType: RIGAKU RAXIS VII / Detector: IMAGE PLATE / Date: Nov 24, 2003
RadiationProtocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
IDWavelength (Å)Relative weight
11.54181
20.97921
30.97981
40.98191
ReflectionResolution: 2.3→50 Å / Num. obs: 14008 / % possible obs: 99.7 % / Biso Wilson estimate: 31.1 Å2 / Rmerge(I) obs: 0.041 / Net I/σ(I): 45.5
Reflection shellResolution: 2.3→2.38 Å / Rmerge(I) obs: 0.132 / Mean I/σ(I) obs: 19.7 / % possible all: 99.6

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Processing

Software
NameVersionClassification
CNS1.1refinement
DENZOdata reduction
SCALEPACKdata scaling
MLPHAREphasing
RefinementMethod to determine structure: MAD / Resolution: 2.3→19.8 Å / Rfactor Rfree error: 0.007 / Data cutoff high absF: 965132.28 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.252 1399 10.1 %RANDOM
Rwork0.216 ---
obs0.216 13799 99 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 29.6479 Å2 / ksol: 0.338706 e/Å3
Displacement parametersBiso mean: 34.5 Å2
Baniso -1Baniso -2Baniso -3
1-12.69 Å20 Å20 Å2
2--2.3 Å20 Å2
3----14.98 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.36 Å0.29 Å
Luzzati d res low-5 Å
Luzzati sigma a0.34 Å0.22 Å
Refinement stepCycle: LAST / Resolution: 2.3→19.8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2002 0 63 119 2184
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d22.8
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.92
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
LS refinement shellResolution: 2.3→2.44 Å / Rfactor Rfree error: 0.02 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.303 239 10.8 %
Rwork0.242 1964 -
obs--98.1 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2ATP.PARAMATP.TOP
X-RAY DIFFRACTION3WATER_REP.PARAMWATER_REP.TOP
X-RAY DIFFRACTION4ION.PARAMION.TOP

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