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- PDB-1n5x: Xanthine Dehydrogenase from Bovine Milk with Inhibitor TEI-6720 Bound -

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Basic information

Entry
Database: PDB / ID: 1n5x
TitleXanthine Dehydrogenase from Bovine Milk with Inhibitor TEI-6720 Bound
ComponentsXanthine Dehydrogenase
KeywordsOXIDOREDUCTASE / Molybdopterin / TEI-6720 / Flavoprotein / FAD / Iron-Sulfur Center / Fe2/S2 Center
Function / homology
Function and homology information


xanthine dehydrogenase complex / xanthine dehydrogenase / xanthine oxidase / xanthine oxidase activity / xanthine catabolic process / xanthine dehydrogenase activity / molybdenum ion binding / molybdopterin cofactor binding / FAD binding / 2 iron, 2 sulfur cluster binding ...xanthine dehydrogenase complex / xanthine dehydrogenase / xanthine oxidase / xanthine oxidase activity / xanthine catabolic process / xanthine dehydrogenase activity / molybdenum ion binding / molybdopterin cofactor binding / FAD binding / 2 iron, 2 sulfur cluster binding / peroxisome / flavin adenine dinucleotide binding / iron ion binding / protein homodimerization activity / extracellular space
Similarity search - Function
Xanthine dehydrogenase, small subunit / Oxidoreductase, molybdopterin binding site / Eukaryotic molybdopterin oxidoreductases signature. / Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead / CO dehydrogenase flavoprotein, C-terminal domain / Aldehyde Oxidoreductase; domain 4 / Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain / [2Fe-2S]-binding domain / CO dehydrogenase flavoprotein C-terminal domain / Molybdopterin dehydrogenase, FAD-binding ...Xanthine dehydrogenase, small subunit / Oxidoreductase, molybdopterin binding site / Eukaryotic molybdopterin oxidoreductases signature. / Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead / CO dehydrogenase flavoprotein, C-terminal domain / Aldehyde Oxidoreductase; domain 4 / Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain / [2Fe-2S]-binding domain / CO dehydrogenase flavoprotein C-terminal domain / Molybdopterin dehydrogenase, FAD-binding / CO dehydrogenase flavoprotein, C-terminal / CO dehydrogenase flavoprotein, C-terminal domain superfamily / FAD binding domain in molybdopterin dehydrogenase / CO dehydrogenase flavoprotein C-terminal domain / Aldehyde oxidase/xanthine dehydrogenase / Aldehyde oxidase and xanthine dehydrogenase, a/b hammerhead domain / Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead / [2Fe-2S]-binding / Aldehyde oxidase/xanthine dehydrogenase, first molybdopterin binding domain / Aldehyde oxidase/xanthine dehydrogenase, a/b hammerhead superfamily / [2Fe-2S]-binding domain superfamily / Aldehyde oxidase/xanthine dehydrogenase, molybdopterin binding domain superfamily / Aldehyde oxidase/xanthine dehydrogenase, second molybdopterin binding domain / [2Fe-2S] binding domain / Molybdopterin cofactor-binding domain / Molybdopterin cofactor-binding domain / Aldehyde oxidase and xanthine dehydrogenase, a/b hammerhead domain / Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase, domain 2 / Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase; domain 2 / Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase; domain 3 - #10 / Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase; domain 3 / FAD-binding, type PCMH, subdomain 1 / Aldehyde Oxidoreductase; domain 3 / 2Fe-2S ferredoxin, iron-sulphur binding site / 2Fe-2S ferredoxin-type iron-sulfur binding region signature. / FAD-binding domain, PCMH-type / PCMH-type FAD-binding domain profile. / Beta-grasp domain / 2Fe-2S iron-sulfur cluster binding domain / FAD-binding, type PCMH, subdomain 2 / FAD-binding, type PCMH-like superfamily / Enolase-like; domain 1 / Beta-grasp domain superfamily / 2Fe-2S ferredoxin-type iron-sulfur binding domain profile. / 2Fe-2S ferredoxin-type iron-sulfur binding domain / 2Fe-2S ferredoxin-like superfamily / Ubiquitin-like (UB roll) / DNA polymerase; domain 1 / Roll / Alpha-Beta Complex / 2-Layer Sandwich / Orthogonal Bundle / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
FLAVIN-ADENINE DINUCLEOTIDE / FE2/S2 (INORGANIC) CLUSTER / DIOXOTHIOMOLYBDENUM(VI) ION / Chem-MTE / Chem-TEI / Xanthine dehydrogenase/oxidase
Similarity search - Component
Biological speciesBos taurus (cattle)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.8 Å
AuthorsOkamoto, K. / Eger, B.T. / Nishino, T. / Kondo, S. / Pai, E.F. / Nishino, T.
Citation
Journal: J.BIOL.CHEM. / Year: 2003
Title: An Extremely Potent Inhibitor of Xanthine Oxidoreductase: Crystal Structure of the Enzyme-Inhibitor Complex and Mechanism of Inhibition
Authors: Okamoto, K. / Eger, B.T. / Nishino, T. / Kondo, S. / Pai, E.F. / Nishino, T.
#1: Journal: EUR.J.PHARMACOL. / Year: 1993
Title: Hypouricemic effect of the novel xanthine oxidase inhibitor, TEI-6720, in rodents
Authors: Osada, Y. / Tsuchimoto, M. / Fukushima, H. / Takahashi, K. / Kondo, S. / Hasegawa, M. / Komoriya, K.
History
DepositionNov 7, 2002Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Mar 18, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 28, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3May 8, 2013Group: Other
Revision 1.4Oct 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_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.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_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_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

Downloads & links

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Assembly

Deposited unit
A: Xanthine Dehydrogenase
B: Xanthine Dehydrogenase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)297,74414
Polymers293,7242
Non-polymers4,02012
Water00
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area13180 Å2
ΔGint-140 kcal/mol
Surface area86920 Å2
MethodPISA
Unit cell
Length a, b, c (Å)168.269, 124.659, 147.325
Angle α, β, γ (deg.)90.00, 90.99, 90.00
Int Tables number5
Space group name H-MC121
Noncrystallographic symmetry (NCS)NCS oper:
IDCodeMatrixVector
1given(1), (1), (1)
2given(0.9967, -0.0361, 0.07273), (-0.03614, -0.99935, -0.0008), (0.07272, -0.00183, -0.99735)0.6172, 162.88963, 64.69322

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein Xanthine Dehydrogenase


Mass: 146861.953 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / Secretion: milk / References: UniProt: P80457, 1.1.1.204

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Non-polymers , 5 types, 12 molecules

#2: Chemical
ChemComp-FES / FE2/S2 (INORGANIC) CLUSTER


Mass: 175.820 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Fe2S2
#3: Chemical ChemComp-MTE / PHOSPHONIC ACIDMONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,7,8A,9,10,10A-HEXAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL)ESTER


Mass: 395.352 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H14N5O6PS2
#4: Chemical ChemComp-MOS / DIOXOTHIOMOLYBDENUM(VI) ION


Mass: 161.012 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: HMoO2S
#5: Chemical ChemComp-FAD / FLAVIN-ADENINE DINUCLEOTIDE


Mass: 785.550 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C27H33N9O15P2 / Comment: FAD*YM
#6: Chemical ChemComp-TEI / 2-(3-CYANO-4-ISOBUTOXY-PHENYL)-4-METHYL-5-THIAZOLE-CARBOXYLIC ACID


Mass: 316.375 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C16H16N2O3S / Comment: medication*YM

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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: 2.63 Å3/Da / Density % sol: 53.21 %
Crystal growTemperature: 293 K / Method: batch slide
Details: PEG4000, DTT, Glycerol, Batch Slide, temperature 293K
Crystal grow
*PLUS
Temperature: 20 ℃ / Method: unknown
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
17.5 mg/mlenzyme11
250 mMpotassium phosphate12pH6.5
35 mMdithiothreitol12
41 mMsalicylate12
50.2 mMEDTA12
630 %glycerol12
70.5 mMTEI-672012
86-10 %(w/v)PEG400012

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL40B2 / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 4r / Detector: CCD / Date: Mar 22, 2002
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.8→20 Å / Num. all: 78047 / Num. obs: 74031 / % possible obs: 99.1 % / Observed criterion σ(I): -3 / Redundancy: 3.24 % / Biso Wilson estimate: 21 Å2 / Rmerge(I) obs: 0.111 / Rsym value: 0.111 / Net I/σ(I): 9.59
Reflection shellResolution: 2.8→2.85 Å / Redundancy: 2.84 % / Rmerge(I) obs: 0.442 / Mean I/σ(I) obs: 2.17 / Num. unique all: 3646 / Rsym value: 0.442 / % possible all: 98.2
Reflection
*PLUS
Lowest resolution: 20 Å / % possible obs: 99 % / Rmerge(I) obs: 0.116
Reflection shell
*PLUS
Highest resolution: 2.8 Å / % possible obs: 98.3 % / Rmerge(I) obs: 0.438 / Mean I/σ(I) obs: 2.2

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Processing

Software
NameVersionClassification
HKL-2000data collection
SCALEPACKdata scaling
EPMRphasing
CNS1refinement
HKL-2000data reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB 1FO4

1fo4


Resolution: 2.8→20 Å / Isotropic thermal model: isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber / Details: STRICT NCS WAS USED THROUGHOUT
RfactorNum. reflection% reflectionSelection details
Rfree0.275 2827 -RESOLUTION SHELLS-RANDOM
Rwork0.244 ---
all-74710 --
obs-70003 93.7 %-
Displacement parametersBiso mean: 21 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.46 Å0.39 Å
Luzzati d res low-5 Å
Luzzati sigma a0.62 Å0.55 Å
Refinement stepCycle: LAST / Resolution: 2.8→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms20046 0 222 0 20268
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.01
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_dihedral_angle_d23.4
X-RAY DIFFRACTIONc_improper_angle_d0.89
Refine LS restraints NCSNCS model details: STRICT NCS
LS refinement shellResolution: 2.8→2.85 Å / Rfactor Rfree error: 0.038
RfactorNum. reflection% reflection
Rfree0.427 125 -
Rwork0.365 --
obs-2982 71 %
Refinement
*PLUS
Highest resolution: 2.8 Å / Lowest resolution: 20 Å / Rfactor obs: 0.244
Solvent computation
*PLUS
Displacement parameters
*PLUS
Biso mean: 21 Å2
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg23.4
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.89
LS refinement shell
*PLUS
Highest resolution: 2.8 Å

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