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- PDB-3uco: Coccomyxa beta-carbonic anhydrase in complex with iodide -

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Basic information

Entry
Database: PDB / ID: 3uco
TitleCoccomyxa beta-carbonic anhydrase in complex with iodide
ComponentsCarbonic anhydrase
KeywordsLYASE/LYASE INHIBITOR / alpha/beta / strand exchange / LYASE-LYASE INHIBITOR complex
Function / homology
Function and homology information


carbon utilization / carbonic anhydrase / carbonate dehydratase activity / zinc ion binding
Similarity search - Function
Prokaryotic-type carbonic anhydrases signature 1. / Carbonic anhydrase, prokaryotic-like, conserved site / Beta-carbonic Anhydrase; Chain A / Carbonic anhydrase / Carbonic anhydrase / Carbonic anhydrase superfamily / Carbonic anhydrase / Carbonic anhydrase / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
IODIDE ION / Carbonic anhydrase
Similarity search - Component
Biological speciesCoccomyxa sp. PA (plant)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.5 Å
AuthorsHuang, S. / Hainzl, T. / Sauer-Eriksson, A.E.
CitationJournal: Plos One / Year: 2011
Title: Structural studies of [beta]-carbonic anhydrase from the green alga Coccomyxa: inhibitor complexes with anions and acetazolamide.
Authors: Huang, S. / Hainzl, T. / Grundstrom, C. / Forsman, C. / Samuelsson, G. / Sauer-Eriksson, A.E.
History
DepositionOct 27, 2011Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 23, 2011Provider: repository / Type: Initial release
Revision 1.1Mar 28, 2012Group: Database references
Revision 1.2Jul 17, 2019Group: Data collection / Refinement description / Category: software
Item: _software.classification / _software.name / _software.version

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Carbonic anhydrase
B: Carbonic anhydrase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)49,9627
Polymers49,4512
Non-polymers5125
Water2,720151
1
A: Carbonic anhydrase
B: Carbonic anhydrase
hetero molecules

A: Carbonic anhydrase
B: Carbonic anhydrase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)99,92414
Polymers98,9014
Non-polymers1,02310
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation7_556y,x,-z+11
Buried area21150 Å2
ΔGint-278 kcal/mol
Surface area31380 Å2
MethodPISA
Unit cell
Length a, b, c (Å)75.478, 75.478, 222.405
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number96
Space group name H-MP43212

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Components

#1: Protein Carbonic anhydrase /


Mass: 24725.305 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Coccomyxa sp. PA (plant) / Plasmid: pMAL-c2 / Production host: Escherichia coli (E. coli) / References: UniProt: Q96554, carbonic anhydrase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-IOD / IODIDE ION / Iodide


Mass: 126.904 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: I
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 151 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 3.2 Å3/Da / Density % sol: 61.6 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop / pH: 7.2
Details: 1.6-2.3 M sodium/potassium phosphate, 50 mM sodium iodide, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 291K

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Data collection

DiffractionMean temperature: 293 K
Diffraction sourceSource: ROTATING ANODE / Type: ENRAF-NONIUS FR591 / Wavelength: 1.5418 Å
DetectorType: MAC Science DIP-2030 / Detector: IMAGE PLATE / Date: Dec 5, 2000
RadiationMonochromator: Ni FILTER, Pt MIRRORS / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.5→20 Å / Num. all: 22929 / Num. obs: 22929 / % possible obs: 98.6 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Rsym value: 0.091
Reflection shellResolution: 2.5→2.59 Å / Rsym value: 0.436 / % possible all: 99.7

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Processing

Software
NameVersionClassification
REFMAC5.5.0110refinement
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3UCJ

3ucj


Resolution: 2.5→19.94 Å / Cor.coef. Fo:Fc: 0.973 / Cor.coef. Fo:Fc free: 0.954 / SU B: 6.776 / SU ML: 0.15 / Cross valid method: THROUGHOUT / ESU R: 0.269 / ESU R Free: 0.217 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2106 1130 5 %RANDOM
Rwork0.15328 ---
all0.15605 21690 --
obs0.15605 21690 98.75 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 56.167 Å2
Baniso -1Baniso -2Baniso -3
1-0.09 Å20 Å20 Å2
2--0.09 Å20 Å2
3----0.18 Å2
Refinement stepCycle: LAST / Resolution: 2.5→19.94 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3390 0 5 151 3546
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0210.0223464
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.9071.9474708
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.3125442
X-RAY DIFFRACTIONr_dihedral_angle_2_deg41.82524.795146
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.61215568
X-RAY DIFFRACTIONr_dihedral_angle_4_deg13.871514
X-RAY DIFFRACTIONr_chiral_restr0.1180.2530
X-RAY DIFFRACTIONr_gen_planes_refined0.0090.0212618
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_it0.9991.52208
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.93423534
X-RAY DIFFRACTIONr_scbond_it3.31931256
X-RAY DIFFRACTIONr_scangle_it5.5914.51174
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.5→2.564 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.37 92 -
Rwork0.311 1549 -
obs--99.7 %

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