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- PDB-3ajh: Crystal structure of PcyA V225D-biliverdin XIII alpha complex -

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Basic information

Entry
Database: PDB / ID: 3ajh
TitleCrystal structure of PcyA V225D-biliverdin XIII alpha complex
ComponentsPhycocyanobilin:ferredoxin oxidoreductase
KeywordsOXIDOREDUCTASE / alpha/beta/alpha sandwich
Function / homology
Function and homology information


phycocyanobilin:ferredoxin oxidoreductase / phycocyanobilin:ferredoxin oxidoreductase activity / phytochromobilin biosynthetic process / cobalt ion binding
Similarity search - Function
Phycocyanobilin:ferredoxin oxidoreductase / oxygen-dependent coproporphyrinogen oxidase - #20 / Ferredoxin-dependent bilin reductase / Ferredoxin-dependent bilin reductase / oxygen-dependent coproporphyrinogen oxidase / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Chem-BL3 / Phycocyanobilin:ferredoxin oxidoreductase
Similarity search - Component
Biological speciesSynechocystis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / 3AJG / Resolution: 2.25 Å
AuthorsWada, K. / Hagiwara, Y. / Fukuyama, K.
CitationJournal: Biochem.Biophys.Res.Commun. / Year: 2010
Title: One residue substitution in PcyA leads to unexpected changes in tetrapyrrole substrate binding.
Authors: Wada, K. / Hagiwara, Y. / Yutani, Y. / Fukuyama, K.
History
DepositionJun 5, 2010Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Mar 16, 2011Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Mar 13, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / entity / pdbx_entity_nonpoly / struct_ref_seq_dif / struct_site
Item: _chem_comp.name / _database_2.pdbx_DOI ..._chem_comp.name / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _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
A: Phycocyanobilin:ferredoxin oxidoreductase
B: Phycocyanobilin:ferredoxin oxidoreductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)57,5104
Polymers56,3442
Non-polymers1,1652
Water2,414134
1
A: Phycocyanobilin:ferredoxin oxidoreductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)28,7552
Polymers28,1721
Non-polymers5831
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: Phycocyanobilin:ferredoxin oxidoreductase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)28,7552
Polymers28,1721
Non-polymers5831
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)74.611, 74.605, 84.627
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Phycocyanobilin:ferredoxin oxidoreductase


Mass: 28172.113 Da / Num. of mol.: 2 / Fragment: V225D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Synechocystis (bacteria) / Strain: PCC 6803 / Gene: pcyA, slr0116 / Plasmid: pET21a / Production host: Escherichia coli (E. coli) / Strain (production host): C41(DE3)
References: UniProt: Q55891, phycocyanobilin:ferredoxin oxidoreductase
#2: Chemical ChemComp-BL3 / 3-[2-[(Z)-[3-(2-carboxyethyl)-5-[(Z)-(3-ethenyl-4-methyl-5-oxo-pyrrol-2-ylidene)methyl]-4-methyl-pyrrol-2-ylidene]methy l]-5-[(Z)-(3-ethenyl-4-methyl-5-oxo-pyrrol-2-ylidene)methyl]-4-methyl-1H-pyrrol-3-yl]propanoic acid / BILIVERDIN XIII ALPHA


Mass: 582.646 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C33H34N4O6
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 134 / 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: 2.09 Å3/Da / Density % sol: 41.15 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 4
Details: 0.8-1.0M NaH2PO4, 1.0-1.2M K2HPO4, 100mM sodium acetate, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL41XU / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Dec 11, 2009
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.25→50 Å / Num. all: 23018 / Num. obs: 23018 / % possible obs: 98.5 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 7.4 % / Biso Wilson estimate: 29.2 Å2 / Rmerge(I) obs: 0.046 / Net I/σ(I): 18.5
Reflection shellResolution: 2.25→2.29 Å / Redundancy: 7.4 % / Rmerge(I) obs: 0.31 / Num. unique all: 1118 / % possible all: 99.6

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Processing

Software
NameVersionClassification
HKL-2000data collection
MOLREPphasing
CNS1.2refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: 3AJG / Resolution: 2.25→27.98 Å / Rfactor Rfree error: 0.009 / Data cutoff high absF: 281864.72 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber / Details: BULK SOLVENT MODEL USED
RfactorNum. reflection% reflectionSelection details
Rfree0.289 1087 4.8 %RANDOM
Rwork0.251 ---
all0.252 ---
obs0.251 22542 97.9 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 50.9269 Å2 / ksol: 0.35 e/Å3
Displacement parametersBiso mean: 55.4 Å2
Baniso -1Baniso -2Baniso -3
1-7.62 Å20 Å20 Å2
2--2.95 Å20 Å2
3----10.57 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.41 Å0.33 Å
Luzzati d res low-5 Å
Luzzati sigma a0.34 Å0.27 Å
Refinement stepCycle: LAST / Resolution: 2.25→27.98 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3844 0 86 134 4064
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.009
X-RAY DIFFRACTIONc_angle_deg2.1
X-RAY DIFFRACTIONc_dihedral_angle_d24.3
X-RAY DIFFRACTIONc_improper_angle_d1.35
LS refinement shellResolution: 2.25→2.39 Å / Rfactor Rfree error: 0.031 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.386 153 4.3 %
Rwork0.319 3377 -
obs--94.2 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2dna-rna_rep.paramdna-rna.top
X-RAY DIFFRACTION3water_rep.paramwater.top
X-RAY DIFFRACTION4ion.paramion.top
X-RAY DIFFRACTION5V13.paramBV13.top

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