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- PDB-2qkn: Crystal structure of Maize cytokinin oxidase/dehydrogenase comple... -

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Basic information

Entry
Database: PDB / ID: 2qkn
TitleCrystal structure of Maize cytokinin oxidase/dehydrogenase complexed with phenylurea inhibitor CPPU
ComponentsCytokinin dehydrogenase 1
KeywordsOXIDOREDUCTASE / CYTOKININ OXIDASE/DESHYDROGENASE / FLAVOPROTEIN / FAD / PHENYL-UREA INHIBITOR
Function / homology
Function and homology information


cytokinin dehydrogenase / cytokinin dehydrogenase activity / cytokinin metabolic process / FAD binding / oxidoreductase activity / extracellular region
Similarity search - Function
Cytokinin dehydrogenase 1, FAD/cytokinin binding domain / Cytokinin dehydrogenase 1, FAD and cytokinin binding / FAD-linked oxidases, C-terminal domain / Cytokinin dehydrogenase, C-terminal domain superfamily / Oxygen oxidoreductase covalent FAD-binding site / Oxygen oxidoreductases covalent FAD-binding site. / FAD-linked oxidase-like, C-terminal / Vanillyl-alcohol Oxidase; Chain A, domain 3 / Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase, domain 2 / Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase; domain 2 ...Cytokinin dehydrogenase 1, FAD/cytokinin binding domain / Cytokinin dehydrogenase 1, FAD and cytokinin binding / FAD-linked oxidases, C-terminal domain / Cytokinin dehydrogenase, C-terminal domain superfamily / Oxygen oxidoreductase covalent FAD-binding site / Oxygen oxidoreductases covalent FAD-binding site. / FAD-linked oxidase-like, C-terminal / Vanillyl-alcohol Oxidase; Chain A, domain 3 / 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 linked oxidase, N-terminal / FAD binding domain / FAD-binding, type PCMH, subdomain 1 / FAD-binding domain, PCMH-type / PCMH-type FAD-binding domain profile. / FAD-binding, type PCMH, subdomain 2 / FAD-binding, type PCMH-like superfamily / 2-Layer Sandwich / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
1-(2-chloropyridin-4-yl)-3-phenylurea / FLAVIN-ADENINE DINUCLEOTIDE / Cytokinin dehydrogenase 1
Similarity search - Component
Biological speciesZea mays (maize)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.15 Å
AuthorsBriozzo, P.
CitationJournal: Biochimie / Year: 2010
Title: Phenyl- and benzylurea cytokinins as competitive inhibitors of cytokinin oxidase/dehydrogenase: a structural study.
Authors: Kopecny, D. / Briozzo, P. / Popelkova, H. / Sebela, M. / Koncitikova, R. / Spichal, L. / Nisler, J. / Madzak, C. / Frebort, I. / Laloue, M. / Houba-Herin, N.
History
DepositionJul 11, 2007Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 1, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / struct_asym / struct_conn / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_entity_id / _atom_site.occupancy / _chem_comp.name / _chem_comp.type / _pdbx_entity_nonpoly.entity_id / _pdbx_entity_nonpoly.name / _pdbx_struct_assembly_gen.asym_id_list / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _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_asym_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_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Aug 30, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Cytokinin dehydrogenase 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)58,44610
Polymers55,3571
Non-polymers3,0899
Water5,314295
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)249.544, 50.523, 51.257
Angle α, β, γ (deg.)90.00, 94.01, 90.00
Int Tables number5
Space group name H-MC121

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Cytokinin dehydrogenase 1 / E.C.1.5.99.12 / Cytokinin oxidase 1 / CKO 1 / COX 1 / ZmCKX / cytokinin oxidase/dehydrogenase


Mass: 55357.184 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Zea mays (maize) / Gene: CKX1 / Variant: Nobilis / Plasmid: pINA6703 / Production host: Yarrowia lipolytica (yeast) / References: UniProt: Q9T0N8, cytokinin dehydrogenase

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Sugars , 2 types, 5 molecules

#2: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#3: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 4 types, 299 molecules

#4: Chemical ChemComp-FAD / FLAVIN-ADENINE DINUCLEOTIDE


Mass: 785.550 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H33N9O15P2 / Comment: FAD*YM
#5: Chemical ChemComp-245 / 1-(2-chloropyridin-4-yl)-3-phenylurea


Mass: 247.680 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C12H10ClN3O
#6: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 295 / 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: 2.91 Å3/Da / Density % sol: 57.73 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7
Details: 15.5% PEG 1500, 0.5% n-octyl beta-D-glucoside, Tris-HCl, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: BM30A / Wavelength: 0.98 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Dec 11, 2004
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98 Å / Relative weight: 1
ReflectionResolution: 2.15→30 Å / Num. all: 32292 / Num. obs: 32292 / Observed criterion σ(I): 2
Reflection shellResolution: 2.15→2.2 Å / Redundancy: 10.2 % / Mean I/σ(I) obs: 3.7 / Num. unique all: 32292 / Rsym value: 0.266 / % possible all: 86.9

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Processing

Software
NameVersionClassification
MOLREPphasing
CNS1.1refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1W1O

1w1o


Resolution: 2.15→30 Å / Cross valid method: thorough
RfactorNum. reflection% reflectionSelection details
Rfree0.231 3229 -random
Rwork0.191 ---
obs-32292 10 %-
Refinement stepCycle: LAST / Resolution: 2.15→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3784 0 205 295 4284
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.062
X-RAY DIFFRACTIONc_angle_deg1.3
LS refinement shellResolution: 2.15→2.16 Å
RfactorNum. reflection
Rfree0.2976 56
Rwork0.2707 -
obs-580

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