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- PDB-1zsa: CARBONIC ANHYDRASE II MUTANT E117Q, APO FORM -

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Basic information

Entry
Database: PDB / ID: 1zsa
TitleCARBONIC ANHYDRASE II MUTANT E117Q, APO FORM
ComponentsCARBONIC ANHYDRASE IICarbonic anhydrase
KeywordsLYASE (OXO-ACID) / LYASE / OXO-ACID / ACETYLATION / ZINC / POLYMORPHISM
Function / homology
Function and homology information


positive regulation of cellular pH reduction / positive regulation of dipeptide transmembrane transport / regulation of monoatomic anion transport / secretion / cyanamide hydratase / cyanamide hydratase activity / arylesterase activity / regulation of chloride transport / Reversible hydration of carbon dioxide / angiotensin-activated signaling pathway ...positive regulation of cellular pH reduction / positive regulation of dipeptide transmembrane transport / regulation of monoatomic anion transport / secretion / cyanamide hydratase / cyanamide hydratase activity / arylesterase activity / regulation of chloride transport / Reversible hydration of carbon dioxide / angiotensin-activated signaling pathway / positive regulation of synaptic transmission, GABAergic / regulation of intracellular pH / morphogenesis of an epithelium / carbonic anhydrase / carbonate dehydratase activity / carbon dioxide transport / Erythrocytes take up oxygen and release carbon dioxide / Erythrocytes take up carbon dioxide and release oxygen / neuron cellular homeostasis / one-carbon metabolic process / apical part of cell / myelin sheath / extracellular exosome / zinc ion binding / plasma membrane / cytosol / 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 speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / Resolution: 2.5 Å
AuthorsLesburg, C.A. / Christianson, D.W.
CitationJournal: Biochemistry / Year: 1996
Title: Reversal of the hydrogen bond to zinc ligand histidine-119 dramatically diminishes catalysis and enhances metal equilibration kinetics in carbonic anhydrase II.
Authors: Huang, C.C. / Lesburg, C.A. / Kiefer, L.L. / Fierke, C.A. / Christianson, D.W.
History
DepositionJan 9, 1996Processing site: BNL
Revision 1.0Jul 11, 1996Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 3, 2021Group: Database references / Other
Category: database_2 / pdbx_database_status / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.process_site / _struct_ref_seq_dif.details
Revision 1.4Feb 14, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: CARBONIC ANHYDRASE II


Theoretical massNumber of molelcules
Total (without water)29,1571
Polymers29,1571
Non-polymers00
Water73941
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)42.700, 41.700, 73.000
Angle α, β, γ (deg.)90.00, 104.60, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein CARBONIC ANHYDRASE II / Carbonic anhydrase / CARBONATE DEHYDRATASE / HCA II / CA


Mass: 29156.879 Da / Num. of mol.: 1 / Mutation: E117Q
Source method: isolated from a genetically manipulated source
Details: APO FORM / Source: (gene. exp.) Homo sapiens (human) / Gene: CA2 / Plasmid: PCAM-E117Q / Species (production host): Escherichia coli / Gene (production host): CA2 / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P00918, carbonic anhydrase
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 41 / 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: 2.17 Å3/Da / Density % sol: 43 %
Crystal
*PLUS
Crystal grow
*PLUS
Temperature: 25 ℃ / pH: 8 / Method: vapor diffusion, sitting drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
150 mMTris-HCl1reservoir
250-75 %sat1reservoir(NH4)2SO4
30.3 mMprotain1drop
450 mMTris-HCl1drop

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Data collection

Diffraction sourceWavelength: 1.5418
DetectorType: RIGAKU RAXIS IIC / Detector: IMAGE PLATE / Date: Jul 16, 1995
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.5→10 Å / Num. obs: 7871 / % possible obs: 90 % / Observed criterion σ(I): 2 / Redundancy: 3.1 % / Rmerge(I) obs: 0.08
Reflection
*PLUS
Num. measured all: 24469

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
X-PLORphasing
RefinementResolution: 2.5→8 Å / σ(F): 2
RfactorNum. reflection% reflection
Rwork0.168 --
obs0.168 7328 87.1 %
Displacement parametersBiso mean: 19.7 Å2
Refinement stepCycle: LAST / Resolution: 2.5→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2048 0 0 41 2089
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.013
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.8
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d25.9
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.6
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg25.9
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.6

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