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- PDB-4cnw: Surface residue engineering of bovine carbonic anhydrase to an ex... -

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Basic information

Entry
Database: PDB / ID: 4cnw
TitleSurface residue engineering of bovine carbonic anhydrase to an extreme halophilic enzyme for potential application in postcombustion CO2 capture
ComponentsCARBONIC ANHYDRASE 2
KeywordsLYASE / PROTEIN ENGINEERING / CO2 CAPTURE
Function / homology
Function and homology information


positive regulation of dipeptide transmembrane transport / regulation of monoatomic anion transport / cyanamide hydratase / cyanamide hydratase activity / angiotensin-activated signaling pathway / regulation of intracellular pH / carbonic anhydrase / carbonate dehydratase activity / carbon dioxide transport / one-carbon metabolic process ...positive regulation of dipeptide transmembrane transport / regulation of monoatomic anion transport / cyanamide hydratase / cyanamide hydratase activity / angiotensin-activated signaling pathway / regulation of intracellular pH / carbonic anhydrase / carbonate dehydratase activity / carbon dioxide transport / one-carbon metabolic process / apical part of cell / zinc ion binding / plasma membrane / cytoplasm
Similarity search - Function
Carbonic Anhydrase II / Alpha carbonic anhydrase / Carbonic anhydrase, alpha-class, conserved site / Alpha-carbonic anhydrases signature. / Carbonic anhydrase, alpha-class / Alpha carbonic anhydrase domain / Alpha carbonic anhydrase domain superfamily / Eukaryotic-type carbonic anhydrase / Alpha-carbonic anhydrases profile. / Eukaryotic-type carbonic anhydrase ...Carbonic Anhydrase II / Alpha carbonic anhydrase / Carbonic anhydrase, alpha-class, conserved site / Alpha-carbonic anhydrases signature. / Carbonic anhydrase, alpha-class / Alpha carbonic anhydrase domain / Alpha carbonic anhydrase domain superfamily / Eukaryotic-type carbonic anhydrase / Alpha-carbonic anhydrases profile. / Eukaryotic-type carbonic anhydrase / Roll / Alpha Beta
Similarity search - Domain/homology
Carbonic anhydrase 2
Similarity search - Component
Biological speciesBOS TAURUS (cattle)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.03 Å
AuthorsWarden, A. / Newman, J. / Peat, T.S. / Seabrook, S. / Williams, M. / Dojchinov, G. / Haritos, V.
CitationJournal: Nat.Commun. / Year: 2015
Title: Rational Engineering of a Mesohalophilic Carbonic Anhydrase to an Extreme Halotolerant Biocatalyst.
Authors: Warden, A.C. / Williams, M. / Peat, T.S. / Seabrook, S.A. / Newman, J. / Dojchinov, G. / Haritos, V.S.
History
DepositionJan 25, 2014Deposition site: PDBE / Processing site: PDBE
Revision 1.0Feb 4, 2015Provider: repository / Type: Initial release
Revision 1.1Jan 13, 2016Group: Database references
Revision 1.2Dec 20, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr1_symmetry / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_conn.ptnr2_symmetry / _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

Downloads & links

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Assembly

Deposited unit
A: CARBONIC ANHYDRASE 2
B: CARBONIC ANHYDRASE 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)58,9605
Polymers58,7892
Non-polymers1713
Water5,062281
1
A: CARBONIC ANHYDRASE 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,4602
Polymers29,3951
Non-polymers651
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: CARBONIC ANHYDRASE 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,5003
Polymers29,3951
Non-polymers1052
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)42.167, 134.314, 46.755
Angle α, β, γ (deg.)90.00, 104.04, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein CARBONIC ANHYDRASE 2 / CARBONATE DEHYDRATASE II / CARBONIC ANHYDRASE II / CA-II


Mass: 29394.568 Da / Num. of mol.: 2 / Mutation: YES
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) BOS TAURUS (cattle) / Plasmid: PET / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / Variant (production host): STAR / References: UniProt: P00921, 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-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 281 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsENGINEERED MUTANTS

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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: 2.23 Å3/Da / Density % sol: 44.8 % / Description: NONE
Crystal growpH: 8
Details: PROTEIN WAS AT 10 MG/ML. THE RESERVOIR CONDITIONS WERE: 25% PEG MME 2000, 200 MM CALCIUM ACETATE, 50 MM TRIS BUFFER PH 8.0. THE CRYSTALS WERE OBTAINED THROUGH CROSS SEEDING FROM A DIFFERENT MUTANT CA-II CRYSTAL.

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.9537
DetectorType: ADSC CCD / Detector: CCD / Date: Dec 20, 2012
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9537 Å / Relative weight: 1
ReflectionResolution: 2.03→45.4 Å / Num. obs: 30083 / % possible obs: 92.4 % / Observed criterion σ(I): 0 / Redundancy: 7.5 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 22.9
Reflection shellResolution: 2.03→2.14 Å / Redundancy: 7.7 % / Rmerge(I) obs: 0.18 / Mean I/σ(I) obs: 10.8 / % possible all: 96.1

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Processing

Software
NameVersionClassification
REFMAC5.7.0032refinement
XDSdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3ML2

3ml2


Resolution: 2.03→38 Å / Cor.coef. Fo:Fc: 0.9 / Cor.coef. Fo:Fc free: 0.863 / SU B: 5.165 / SU ML: 0.142 / Cross valid method: THROUGHOUT / ESU R: 0.291 / ESU R Free: 0.216 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. U VALUES REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.25887 1515 5.1 %RANDOM
Rwork0.21472 ---
obs0.21685 28407 92 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 14.322 Å2
Baniso -1Baniso -2Baniso -3
1--1.3 Å2-0 Å20.37 Å2
2--1.88 Å20 Å2
3----0.6 Å2
Refinement stepCycle: LAST / Resolution: 2.03→38 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4082 0 3 281 4366
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.0194242
X-RAY DIFFRACTIONr_bond_other_d0.0050.023830
X-RAY DIFFRACTIONr_angle_refined_deg1.2691.9495793
X-RAY DIFFRACTIONr_angle_other_deg0.95538876
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.4125521
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.75725.209215
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.00115660
X-RAY DIFFRACTIONr_dihedral_angle_4_deg12.9821516
X-RAY DIFFRACTIONr_chiral_restr0.0720.2605
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.0214904
X-RAY DIFFRACTIONr_gen_planes_other0.0030.02962
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_it0.9261.832078
X-RAY DIFFRACTIONr_mcbond_other0.9261.832077
X-RAY DIFFRACTIONr_mcangle_it1.5013.0822601
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it1.1871.9712164
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.03→2.083 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.318 120 -
Rwork0.237 2152 -
obs--96.76 %

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