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- PDB-1uj2: Crystal structure of human uridine-cytidine kinase 2 complexed wi... -

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Basic information

Entry
Database: PDB / ID: 1uj2
TitleCrystal structure of human uridine-cytidine kinase 2 complexed with products, CMP and ADP
ComponentsUridine-cytidine kinase 2
KeywordsTRANSFERASE / ALPHA/BETA MONONUCLEOTIDE-BINDING HOLD
Function / homology
Function and homology information


uridine/cytidine kinase / CTP salvage / uridine kinase activity / Pyrimidine salvage / cytidine kinase activity / UMP salvage / cellular response to oxygen levels / feeding behavior / response to axon injury / ATP binding ...uridine/cytidine kinase / CTP salvage / uridine kinase activity / Pyrimidine salvage / cytidine kinase activity / UMP salvage / cellular response to oxygen levels / feeding behavior / response to axon injury / ATP binding / identical protein binding / cytoplasm / cytosol
Similarity search - Function
Uridine kinase-like / Phosphoribulokinase/uridine kinase / Phosphoribulokinase / Uridine kinase family / P-loop containing nucleotide triphosphate hydrolases / Rossmann fold / P-loop containing nucleoside triphosphate hydrolase / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / CYTIDINE-5'-MONOPHOSPHATE / Uridine-cytidine kinase 2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsSuzuki, N.N. / Koizumi, K. / Fukushima, M. / Matsuda, A. / Inagaki, F.
Citation
Journal: STRUCTURE / Year: 2004
Title: Structural basis for the specificity, catalysis, and regulation of human uridine-cytidine kinase
Authors: Suzuki, N.N. / Koizumi, K. / Fukushima, M. / Matsuda, A. / Inagaki, F.
#1: Journal: ACTA CRYSTALLOGR.,SECT.D / Year: 2003
Title: Crystallization and preliminary X-ray analysis of human uridine-cytidine kinase 2
Authors: Suzuki, N.N. / Koizumi, K. / Fukushima, M. / Matsuda, A. / Inagaki, F.
History
DepositionJul 25, 2003Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0May 4, 2004Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 25, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / 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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Uridine-cytidine kinase 2
B: Uridine-cytidine kinase 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)58,0758
Polymers56,5262
Non-polymers1,5496
Water7,999444
1
A: Uridine-cytidine kinase 2
B: Uridine-cytidine kinase 2
hetero molecules

A: Uridine-cytidine kinase 2
B: Uridine-cytidine kinase 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)116,15116
Polymers113,0524
Non-polymers3,09912
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_557-x,y,-z+21
Unit cell
Length a, b, c (Å)89.022, 109.714, 64.845
Angle α, β, γ (deg.)90.00, 95.32, 90.00
Int Tables number5
Space group name H-MC121
DetailsThe biological assembly is a tetramer generated from the dimer in the asymmetric unit by the operations: -x, y, 2-z.

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Components

#1: Protein Uridine-cytidine kinase 2 / URIDINE-CYTIDINE KINASE


Mass: 28262.994 Da / Num. of mol.: 2 / Fragment: residues 1-250
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Plasmid: pGEX-6P / Species (production host): Escherichia coli / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 / References: UniProt: Q9BZX2, uridine/cytidine kinase
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-C5P / CYTIDINE-5'-MONOPHOSPHATE


Mass: 323.197 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C9H14N3O8P
#4: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 444 / 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: 2

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Sample preparation

CrystalDensity Matthews: 2.86 Å3/Da / Density % sol: 56.71 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7
Details: PEG8000, calsium acetate, Tris, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293.0K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Nov 17, 2002
RadiationMonochromator: confocal mirror / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.8→100 Å / Num. all: 56389 / Num. obs: 56389 / % possible obs: 98.3 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Biso Wilson estimate: 29.4 Å2 / Rmerge(I) obs: 0.046 / Net I/σ(I): 32.8
Reflection shellResolution: 1.8→1.86 Å / Rmerge(I) obs: 0.313 / Mean I/σ(I) obs: 1.6 / % possible all: 94.3

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Processing

Software
NameVersionClassification
CNS1.1refinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1UDW

1udw


Resolution: 1.8→30.4 Å / Rfactor Rfree error: 0.003 / Data cutoff high absF: 406606.81 / 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
Rfree0.217 5537 10.2 %RANDOM
Rwork0.19 ---
all0.193 54460 --
obs0.19 54460 94.9 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 51.7186 Å2 / ksol: 0.329967 e/Å3
Displacement parametersBiso mean: 34.6 Å2
Baniso -1Baniso -2Baniso -3
1-1.13 Å20 Å2-1.45 Å2
2--0.44 Å20 Å2
3----1.57 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.24 Å0.21 Å
Luzzati d res low-5 Å
Luzzati sigma a0.21 Å0.19 Å
Refinement stepCycle: LAST / Resolution: 1.8→30.4 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3390 0 98 444 3932
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.008
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_deg1.2
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d22.3
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.8
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.321.5
X-RAY DIFFRACTIONc_mcangle_it1.982
X-RAY DIFFRACTIONc_scbond_it2.22
X-RAY DIFFRACTIONc_scangle_it3.292.5
LS refinement shellResolution: 1.8→1.91 Å / Rfactor Rfree error: 0.012 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.322 780 9.8 %
Rwork0.302 7174 -
obs--83.5 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2DNA-RNA_REP.PARAMDNA-RNA.TOP
X-RAY DIFFRACTION3WATER_REP.PARAMWATER.TOP
X-RAY DIFFRACTION4ION.PARAMION.TOP
X-RAY DIFFRACTION5CMPADP3.PARAMCMPADP.TOP

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