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- PDB-3a5a: Crystal structure of a hemoglobin component V from Propsilocerus ... -

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Basic information

Entry
Database: PDB / ID: 3a5a
TitleCrystal structure of a hemoglobin component V from Propsilocerus akamusi (pH5.6 coordinates)
ComponentsHemoglobin V
KeywordsOXYGEN TRANSPORT / hemoglobin / insect / Diptera / Propsilocerus akamusi / midge larva / Heme / Transport
Function / homology
Function and homology information


oxygen carrier activity / oxygen binding / heme binding / metal ion binding
Similarity search - Function
Myoglobin-like, M family globin domain / Globin/Protoglobin / Globins / Globin domain profile. / Globin-like / Globin / Globin / Globin-like superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Hemoglobin V
Similarity search - Component
Biological speciesTokunagayusurika akamusi (insect)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.83 Å
AuthorsKuwada, T. / Hasegawa, T. / Takagi, T. / Shishikura, F.
CitationJournal: Acta Crystallogr.,Sect.D / Year: 2010
Title: pH-dependent structural changes in haemoglobin component V from the midge larva Propsilocerus akamusi (Orthocladiinae, Diptera)
Authors: Kuwada, T. / Hasegawa, T. / Takagi, T. / Sato, I. / Shishikura, F.
History
DepositionAug 5, 2009Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Feb 9, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Nov 1, 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_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.3Oct 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Hemoglobin V
hetero molecules


Theoretical massNumber of molelcules
Total (without water)17,8362
Polymers17,2191
Non-polymers6161
Water4,648258
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)65.490, 75.170, 33.610
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212
Components on special symmetry positions
IDModelComponents
11A-203-

HOH

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Components

#1: Protein Hemoglobin V


Mass: 17219.344 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Tokunagayusurika akamusi (insect) / Tissue: larval hemolymph / References: UniProt: Q7M422
#2: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 258 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 2.4 Å3/Da / Density % sol: 48.8 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5.6
Details: PEG3350, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU ULTRAX 18 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Apr 2, 2008
RadiationMonochromator: confocal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.83→49.38 Å / Num. obs: 15190 / % possible obs: 99.5 % / Redundancy: 13.5 % / Biso Wilson estimate: 16.3 Å2 / Rmerge(I) obs: 0.047
Reflection shellResolution: 1.83→1.9 Å / Redundancy: 13.48 % / Rmerge(I) obs: 0.15 / Mean I/σ(I) obs: 12.5 / % possible all: 100

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Processing

Software
NameVersionClassification
CrystalCleardata collection
CNX2005refinement
CrystalCleardata reduction
CrystalCleardata scaling
CNX2005phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1X3K
Resolution: 1.83→37.59 Å / Rfactor Rfree error: 0.008 / Data cutoff high absF: 1025466.36 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.205 747 4.9 %RANDOM
Rwork0.189 ---
obs0.19 15092 98.7 %-
all-15189 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 52.6324 Å2 / ksol: 0.368895 e/Å3
Displacement parametersBiso mean: 16.3 Å2
Baniso -1Baniso -2Baniso -3
1--1.36 Å20 Å20 Å2
2--0.18 Å20 Å2
3---1.18 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.22 Å0.19 Å
Luzzati d res low-5 Å
Luzzati sigma a0.18 Å0.11 Å
Refinement stepCycle: LAST / Resolution: 1.83→37.59 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1213 0 43 258 1514
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.011
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.3
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d18.3
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.19
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.411.5
X-RAY DIFFRACTIONc_mcangle_it2.152
X-RAY DIFFRACTIONc_scbond_it2.862
X-RAY DIFFRACTIONc_scangle_it3.992.5
LS refinement shellResolution: 1.83→1.94 Å / Rfactor Rfree error: 0.027 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.305 125 5 %
Rwork0.254 2373 -
obs--100 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2water_rep.paramwater.top
X-RAY DIFFRACTION3ion.paramion.top
X-RAY DIFFRACTION4PaV-heme.paramPaV-heme.top

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