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- PDB-6yxc: Structure of Chloroflexus aggregans flavin based fluorescent prot... -

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Basic information

Entry
Database: PDB / ID: 6yxc
TitleStructure of Chloroflexus aggregans flavin based fluorescent protein (CagFbFP) Q148R variant
ComponentsMulti-sensor hybrid histidine kinase
KeywordsFLUORESCENT PROTEIN / LOV domain
Function / homology
Function and homology information


phosphorelay sensor kinase activity / histidine kinase / ATP binding / plasma membrane
Similarity search - Function
PAS fold-4 / PAS fold / Hpt domain / Histidine-containing phosphotransfer (HPt) domain profile. / Signal transduction histidine kinase, phosphotransfer (Hpt) domain / PAS fold-3 / HPT domain superfamily / PAS fold / Histidine kinase/HSP90-like ATPase / PAS domain ...PAS fold-4 / PAS fold / Hpt domain / Histidine-containing phosphotransfer (HPt) domain profile. / Signal transduction histidine kinase, phosphotransfer (Hpt) domain / PAS fold-3 / HPT domain superfamily / PAS fold / Histidine kinase/HSP90-like ATPase / PAS domain / PAS-associated, C-terminal / PAC domain profile. / His Kinase A (phospho-acceptor) domain / His Kinase A (phosphoacceptor) domain / Signal transduction histidine kinase, dimerisation/phosphoacceptor domain / PAC motif / Motif C-terminal to PAS motifs (likely to contribute to PAS structural domain) / Signal transduction histidine kinase-related protein, C-terminal / Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily / Histidine kinase domain / Histidine kinase domain profile. / Response regulator receiver domain / cheY-homologous receiver domain / Signal transduction response regulator, receiver domain / Response regulatory domain profile. / CheY-like superfamily / PAS domain / PAS repeat profile. / Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase / PAS domain / PAS domain superfamily / Histidine kinase-like ATPases / Histidine kinase/HSP90-like ATPase superfamily
Similarity search - Domain/homology
FLAVIN MONONUCLEOTIDE / Circadian input-output histidine kinase CikA
Similarity search - Component
Biological speciesChloroflexus aggregans (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.65 Å
AuthorsRemeeva, A. / Nazarenko, V. / Kovalev, K. / Gushchin, I.
Funding support Russian Federation, 1items
OrganizationGrant numberCountry
Russian Science Foundation18-74-00092 Russian Federation
Citation
Journal: Proteins / Year: 2021
Title: Insights into the mechanisms of light-oxygen-voltage domain color tuning from a set of high-resolution X-ray structures.
Authors: Remeeva, A. / Nazarenko, V.V. / Kovalev, K. / Goncharov, I.M. / Yudenko, A. / Astashkin, R. / Gordeliy, V. / Gushchin, I.
#1: Journal: Biorxiv / Year: 2021
Title: Insights into the mechanisms of LOV domain color tuning from a set of high-resolution X-ray structures
Authors: Remeeva, A. / Nazarenko, V.V. / Kovalev, K. / Goncharov, I. / Yudenko, A. / Astashkin, R. / Gordeliy, V. / Gushchin, I.
History
DepositionApr 30, 2020Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 21, 2021Provider: repository / Type: Initial release
Revision 1.1Jan 24, 2024Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / citation / database_2 / pdbx_initial_refinement_model
Item: _citation.journal_id_ISSN / _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: Multi-sensor hybrid histidine kinase
B: Multi-sensor hybrid histidine kinase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)25,7965
Polymers24,8602
Non-polymers9363
Water3,765209
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: SAXS
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3400 Å2
ΔGint-39 kcal/mol
Surface area9900 Å2
MethodPISA
Unit cell
Length a, b, c (Å)57.419, 110.169, 38.963
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number18
Space group name H-MP21212
Components on special symmetry positions
IDModelComponents
11B-374-

HOH

21B-387-

HOH

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Components

#1: Protein Multi-sensor hybrid histidine kinase


Mass: 12429.947 Da / Num. of mol.: 2 / Mutation: Q148R
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Chloroflexus aggregans (strain MD-66 / DSM 9485) (bacteria)
Strain: MD-66 / DSM 9485 / Gene: Cagg_3753 / Production host: Escherichia coli (E. coli) / References: UniProt: B8GAY9
#2: Chemical ChemComp-FMN / FLAVIN MONONUCLEOTIDE / RIBOFLAVIN MONOPHOSPHATE


Mass: 456.344 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C17H21N4O9P
#3: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 209 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestN

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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: 2.48 Å3/Da / Density % sol: 50.38 %
Crystal growTemperature: 295 K / Method: vapor diffusion, sitting drop
Details: 0.12M hexanediol, 0.12M butanol, 0.12M 1,2-propanediol, 0.12M propanol, 0.12M butanediol, 0.12M 1,3-propanediol, 0.1M MES, 0.1M Imid, pH 6.5, 20%PEG500, 10% PEG20000

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID23-1 / Wavelength: 0.9184 Å
DetectorType: DECTRIS PILATUS 6M-F / Detector: PIXEL / Date: Jun 7, 2018
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9184 Å / Relative weight: 1
ReflectionResolution: 1.632→39.78 Å / Num. obs: 22625 / % possible obs: 71.7 % / Redundancy: 6.4 % / CC1/2: 1 / Net I/σ(I): 16.7
Reflection shellResolution: 1.632→1.76 Å / Redundancy: 6.5 % / Mean I/σ(I) obs: 2.4 / Num. unique obs: 1131 / CC1/2: 0.746 / % possible all: 18

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Processing

Software
NameVersionClassification
Aimless0.7.4data scaling
REFMAC5.8.0238refinement
PDB_EXTRACT3.25data extraction
XDSdata reduction
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6rhf

6rhf


Resolution: 1.65→39.78 Å / Cor.coef. Fo:Fc: 0.961 / Cor.coef. Fo:Fc free: 0.948 / SU B: 2.396 / SU ML: 0.079 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.131 / ESU R Free: 0.121
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2117 1138 5.2 %RANDOM
Rwork0.1822 ---
obs0.1838 20790 71.57 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso max: 76.88 Å2 / Biso mean: 25.248 Å2 / Biso min: 6.44 Å2
Baniso -1Baniso -2Baniso -3
1--0.36 Å2-0 Å2-0 Å2
2--0.07 Å2-0 Å2
3---0.29 Å2
Refinement stepCycle: final / Resolution: 1.65→39.78 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1570 0 63 211 1844
Biso mean--19.48 36.04 -
Num. residues----207
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0030.0131744
X-RAY DIFFRACTIONr_bond_other_d00.0171579
X-RAY DIFFRACTIONr_angle_refined_deg1.2181.7072399
X-RAY DIFFRACTIONr_angle_other_deg1.2091.6023645
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.675226
X-RAY DIFFRACTIONr_dihedral_angle_2_deg30.79821.2100
X-RAY DIFFRACTIONr_dihedral_angle_3_deg10.55815247
X-RAY DIFFRACTIONr_dihedral_angle_4_deg13.3781518
X-RAY DIFFRACTIONr_chiral_restr0.0390.2235
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.022020
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02382
LS refinement shellResolution: 1.65→1.691 Å / Rfactor Rfree error: 0
RfactorNum. reflection% reflection
Rfree0.331 11 -
Rwork0.256 260 -
obs--11.99 %

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