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- PDB-4nxb: Crystal structure of iLOV-I486(2LT) at pH 7.0 -

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Basic information

Entry
Database: PDB / ID: 4nxb
TitleCrystal structure of iLOV-I486(2LT) at pH 7.0
ComponentsPhototropin-2
KeywordsFLAVOPROTEIN / FLUORESCENT PROTEIN / FMN Binding
Function / homology
Function and homology information


chloroplast relocation / phototropism / stomatal movement / blue light photoreceptor activity / response to blue light / plastid / circadian rhythm / kinase activity / FMN binding / protein autophosphorylation ...chloroplast relocation / phototropism / stomatal movement / blue light photoreceptor activity / response to blue light / plastid / circadian rhythm / kinase activity / FMN binding / protein autophosphorylation / non-specific serine/threonine protein kinase / protein serine kinase activity / protein serine/threonine kinase activity / Golgi apparatus / ATP binding / identical protein binding / membrane / plasma membrane
Similarity search - Function
PAS domain / PAS-associated, C-terminal / PAC domain profile. / 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 / PAS-associated, C-terminal / PAC domain profile. / 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 / MOLECULAR REPLACEMENT / Resolution: 2.561 Å
AuthorsWang, J. / Li, J. / Liu, X.
CitationJournal: J.Am.Chem.Soc. / Year: 2014
Title: Significant expansion of fluorescent protein sensing ability through the genetic incorporation of superior photo-induced electron-transfer quenchers.
Authors: Liu, X. / Jiang, L. / Li, J. / Wang, L. / Yu, Y. / Zhou, Q. / Lv, X. / Gong, W. / Lu, Y. / Wang, J.
History
DepositionDec 9, 2013Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Sep 24, 2014Provider: repository / Type: Initial release
Revision 1.1Aug 24, 2022Group: Database references / Derived calculations
Category: citation / database_2 ...citation / database_2 / struct_conn / struct_ref_seq_dif / struct_site
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.title / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.2Nov 8, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Phototropin-2
B: Phototropin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)28,8524
Polymers27,9392
Non-polymers9132
Water59433
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)33.978, 37.696, 53.968
Angle α, β, γ (deg.)83.88, 78.35, 80.40
Int Tables number1
Space group name H-MP1

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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: 13969.408 Da / Num. of mol.: 2 / Fragment: LOV DOMAIN, UNP Residues 388-496 / Mutation: S394T, S409G, I452T, F470L, M475V, I486Y
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


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


Mass: 18.015 Da / Num. of mol.: 33 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsRESIDUES C426A IS MUTAGENESIS ACCORDING TO DATABASE P93025.

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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: 2.38 Å3/Da / Density % sol: 48.37 %
Crystal growMethod: vapor diffusion, sitting drop / Details: VAPOR DIFFUSION, SITTING DROP

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Data collection

DiffractionMean temperature: 200 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU MICROMAX-007 HF / Wavelength: 1.5418 Å
DetectorType: RIGAKU Saturn 944HG / Detector: CCD / Date: Jan 3, 2013
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.55→50 Å / Num. all: 7944 / Num. obs: 7658 / % possible obs: 96.4 % / Observed criterion σ(F): 1 / Observed criterion σ(I): 1
Reflection shellResolution: 2.55→2.59 Å / Redundancy: 1.9 % / Num. unique all: 383 / % possible all: 94.6

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Processing

Software
NameVersionClassification
HKL-2000data collection
MLPHAREphasing
PHENIX(phenix.refine: 1.8.1_1168)refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4EES

4ees


Resolution: 2.561→31.455 Å / Occupancy max: 1 / Occupancy min: 1 / FOM work R set: 0.8043 / SU ML: 0.31 / σ(F): 1.99 / Phase error: 27.18 / Stereochemistry target values: ML
RfactorNum. reflection% reflectionSelection details
Rfree0.2354 293 4.44 %RANDOM
Rwork0.2216 ---
all0.2229 8300 --
obs0.2223 6605 79.57 %-
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 45.31 Å2 / Biso mean: 22.7171 Å2 / Biso min: 9.49 Å2
Refinement stepCycle: LAST / Resolution: 2.561→31.455 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1757 0 62 33 1852
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0041858
X-RAY DIFFRACTIONf_angle_d0.9332525
X-RAY DIFFRACTIONf_dihedral_angle_d20.991703
X-RAY DIFFRACTIONf_chiral_restr0.061265
X-RAY DIFFRACTIONf_plane_restr0.004323
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 2

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection Rwork% reflection obs (%)
2.5605-3.22550.28631250.2494244362
3.2255-31.45720.21621680.2111386997
Refinement TLS params.Method: refined / Origin x: -2.7877 Å / Origin y: -4.4979 Å / Origin z: -10.0653 Å
111213212223313233
T0.0986 Å2-0.0025 Å20.0115 Å2-0.0898 Å20.0116 Å2--0.1162 Å2
L0.7856 °2-0.0406 °20.0042 °2-0.4299 °20.0303 °2--0.953 °2
S-0.0469 Å °-0.0237 Å °0.0125 Å °-0.0415 Å °0.0064 Å °0.0468 Å °-0.0426 Å °0.0531 Å °0.0211 Å °
Refinement TLS groupSelection details: ALL

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