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- PDB-4eet: Crystal structure of iLOV -

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Basic information

Entry
Database: PDB / ID: 4eet
TitleCrystal structure of iLOV
ComponentsPhototropin-2
KeywordsSIGNALING PROTEIN / flavoprotein / LOV / Blue light photoreceptor
Function / homology
Function and homology information


chloroplast relocation / negative regulation of anion channel activity by blue light / phototropism / stomatal movement / response to blue light / blue light photoreceptor activity / plastid / circadian rhythm / FMN binding / kinase activity ...chloroplast relocation / negative regulation of anion channel activity by blue light / phototropism / stomatal movement / response to blue light / blue light photoreceptor activity / plastid / circadian rhythm / FMN binding / kinase activity / protein autophosphorylation / non-specific serine/threonine protein kinase / protein serine kinase activity / protein serine/threonine kinase activity / Golgi apparatus / ATP binding / membrane / identical protein binding / plasma membrane
Similarity search - Function
PAS-associated, C-terminal / PAC domain profile. / PAS domain / PAC motif / Motif C-terminal to PAS motifs (likely to contribute to PAS structural domain) / PAS domain / Beta-Lactamase / PAS domain / PAS repeat profile. / PAS domain ...PAS-associated, C-terminal / PAC domain profile. / PAS domain / PAC motif / Motif C-terminal to PAS motifs (likely to contribute to PAS structural domain) / PAS domain / Beta-Lactamase / PAS domain / PAS repeat profile. / PAS domain / PAS domain superfamily / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Protein kinase domain / Serine/Threonine protein kinases, catalytic domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
FLAVIN MONONUCLEOTIDE / Phototropin-2
Similarity search - Component
Biological speciesArabidopsis thaliana (thale cress)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.2 Å
AuthorsHitomi, K. / Christie, J.M. / Arvai, A.S. / Hartfield, K.A. / Pratt, A.J. / Tainer, J.A. / Getzoff, E.D.
CitationJournal: J.Biol.Chem. / Year: 2012
Title: Structural Tuning of the Fluorescent Protein iLOV for Improved Photostability.
Authors: Christie, J.M. / Hitomi, K. / Arvai, A.S. / Hartfield, K.A. / Mettlen, M. / Pratt, A.J. / Tainer, J.A. / Getzoff, E.D.
History
DepositionMar 28, 2012Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 16, 2012Provider: repository / Type: Initial release
Revision 1.1Jun 6, 2012Group: Database references
Revision 1.2Jul 11, 2012Group: Database references
Revision 1.3Sep 13, 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 / 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 / _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
B: Phototropin-2
D: Phototropin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)27,4704
Polymers26,5582
Non-polymers9132
Water3,963220
1
D: Phototropin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)13,7352
Polymers13,2791
Non-polymers4561
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: Phototropin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)13,7352
Polymers13,2791
Non-polymers4561
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)46.474, 46.474, 207.284
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212
Components on special symmetry positions
IDModelComponents
11D-687-

HOH

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Components

#1: Protein Phototropin-2 / / Defective in chloroplast avoidance protein 1 / Non-phototropic hypocotyl 1-like protein 1 / AtKin7 ...Defective in chloroplast avoidance protein 1 / Non-phototropic hypocotyl 1-like protein 1 / AtKin7 / NPH1-like protein 1


Mass: 13278.843 Da / Num. of mol.: 2 / Fragment: LOV DOMAIN (UNP Residues 385-496)
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Arabidopsis thaliana (thale cress) / Gene: PHOT2, CAV1, KIN7, NPL1, At5g58140, K21L19.6 / Production host: Escherichia coli (E. coli)
References: UniProt: P93025, non-specific serine/threonine protein kinase
#2: Chemical ChemComp-FMN / FLAVIN MONONUCLEOTIDE / RIBOFLAVIN MONOPHOSPHATE / Flavin mononucleotide


Mass: 456.344 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C17H21N4O9P
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 220 / 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: 2.11 Å3/Da / Density % sol: 41.63 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 5.5
Details: 25% PEG 3350, 5% PEG 400, 0.1M sodium acetate, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 12.3.1 / Wavelength: 1.115922 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Apr 15, 2009
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.115922 Å / Relative weight: 1
ReflectionResolution: 1.2→50 Å / Num. all: 72567 / Num. obs: 72377

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Processing

Software
NameVersionClassification
HKL-2000data collection
PHASESphasing
REFMAC5.5.0102refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 4EES

4ees


Resolution: 1.2→50 Å / Cor.coef. Fo:Fc: 0.965 / Cor.coef. Fo:Fc free: 0.963 / SU B: 0.646 / SU ML: 0.03 / Cross valid method: THROUGHOUT / ESU R: 0.046 / ESU R Free: 0.045 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.21146 3648 5 %RANDOM
Rwork0.2011 ---
obs0.20162 68718 99.74 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 18.692 Å2
Baniso -1Baniso -2Baniso -3
1-0.56 Å20 Å2-0 Å2
2--0.56 Å2-0 Å2
3----1.13 Å2
Refinement stepCycle: LAST / Resolution: 1.2→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1788 0 62 220 2070
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0070.0221906
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.1571.9992588
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.1015220
X-RAY DIFFRACTIONr_dihedral_angle_2_deg26.98724.231104
X-RAY DIFFRACTIONr_dihedral_angle_3_deg10.82815333
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.5741518
X-RAY DIFFRACTIONr_chiral_restr0.080.2276
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.0211465
X-RAY DIFFRACTIONr_gen_planes_other
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_it0.6571.51090
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.26121772
X-RAY DIFFRACTIONr_scbond_it1.7233816
X-RAY DIFFRACTIONr_scangle_it2.8394.5814
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.2→1.231 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.305 235 -
Rwork0.314 4864 -
obs--96.96 %

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