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- PDB-3n2p: Crystal structure of human carbonic anhydrase II in complex with ... -

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Basic information

Entry
Database: PDB / ID: 3n2p
TitleCrystal structure of human carbonic anhydrase II in complex with a benzenesulfonamide inhibitor
ComponentsCarbonic anhydrase 2
KeywordsLYASE/LYASE INHIBITOR / lyase / zinc metalloenzyme / zinc ligands / benzenesulfonamide / inhibitor. / LYASE-LYASE INHIBITOR complex
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 / regulation of chloride transport / arylesterase activity / Reversible hydration of carbon dioxide / positive regulation of synaptic transmission, GABAergic ...positive regulation of cellular pH reduction / positive regulation of dipeptide transmembrane transport / regulation of monoatomic anion transport / secretion / cyanamide hydratase / cyanamide hydratase activity / regulation of chloride transport / arylesterase activity / Reversible hydration of carbon dioxide / positive regulation of synaptic transmission, GABAergic / angiotensin-activated signaling pathway / morphogenesis of an epithelium / regulation of intracellular pH / 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
Chem-AYX / Carbonic anhydrase 2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.648 Å
AuthorsAvvaru, B.S. / Wagner, J. / Robbins, A.H. / McKenna, R.
CitationJournal: Chem.Commun.(Camb.) / Year: 2010
Title: Selective hydrophobic pocket binding observed within the carbonic anhydrase II active site accommodate different 4-substituted-ureido-benzenesulfonamides and correlate to inhibitor potency.
Authors: Pacchiano, F. / Aggarwal, M. / Avvaru, B.S. / Robbins, A.H. / Scozzafava, A. / McKenna, R. / Supuran, C.T.
History
DepositionMay 18, 2010Deposition site: RCSB / Processing site: RCSB
Revision 1.0Mar 9, 2011Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Sep 7, 2011Group: Structure summary
Revision 1.3Nov 8, 2017Group: Refinement description / Category: software
Revision 1.4Sep 6, 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 / 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_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.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.value / _struct_conn.pdbx_dist_value / _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.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_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
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,8615
Polymers29,2891
Non-polymers5724
Water3,927218
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)42.340, 41.303, 71.972
Angle α, β, γ (deg.)90.000, 104.170, 90.000
Int Tables number4
Space group name H-MP1211
Detailsthe biological assembly is a monomer.

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Carbonic anhydrase 2 / Carbonic anhydrase II / CA-II / Carbonate dehydratase II / Carbonic anhydrase C / CAC


Mass: 29289.062 Da / Num. of mol.: 1 / Fragment: human carbonic anhydrase II / Mutation: wt
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: hCA2 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3)PLYSS / References: UniProt: P00918, carbonic anhydrase

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Non-polymers , 5 types, 222 molecules

#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-AYX / 4-{[(3-nitrophenyl)carbamoyl]amino}benzenesulfonamide


Mass: 336.323 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C13H12N4O5S
#4: Chemical ChemComp-DMS / DIMETHYL SULFOXIDE


Mass: 78.133 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C2H6OS / Comment: DMSO, precipitant*YM
#5: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O3
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 218 / 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: 2.08 Å3/Da / Density % sol: 40.96 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.8
Details: 0.05 M tris-Cl, 1.3 M sodium citrate, 5 uL + 5 uL droplet, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH3R / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IV++ / Detector: IMAGE PLATE / Date: Apr 14, 2010 / Details: mirrors
RadiationMonochromator: Rigaku varimax / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.65→20 Å / Num. all: 28377 / Num. obs: 28377 / % possible obs: 96.7 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 7 % / Biso Wilson estimate: 29.3 Å2 / Rmerge(I) obs: 0.057 / Rsym value: 0.057 / Χ2: 1.034 / Net I/σ(I): 12.8
Reflection shellResolution: 1.65→1.71 Å / Redundancy: 6.8 % / Mean I/σ(I) obs: 3.8 / Num. unique all: 2720 / Χ2: 1.053 / % possible all: 93.5

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Processing

Software
NameVersionClassificationNB
DENZOdata reduction
SCALEPACKdata scaling
PHENIXdev_403refinement
PDB_EXTRACT3.1data extraction
CrystalCleardata collection
HKL-2000data reduction
HKL-2000data scaling
PHENIX1.6.1_403phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 2ILI

2ili


Resolution: 1.648→19.94 Å / Occupancy max: 1 / Occupancy min: 0.48 / SU ML: 0.21 / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: ML
RfactorNum. reflection% reflectionSelection details
Rfree0.176 1401 5.06 %random
Rwork0.152 ---
all0.153 28377 --
obs0.153 27664 94.18 %-
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL / Bsol: 40.857 Å2 / ksol: 0.485 e/Å3
Displacement parametersBiso max: 92.38 Å2 / Biso mean: 22.497 Å2 / Biso min: 9.34 Å2
Baniso -1Baniso -2Baniso -3
1--0.5 Å2-0 Å2-0.092 Å2
2---2.279 Å20 Å2
3---2.779 Å2
Refinement stepCycle: LAST / Resolution: 1.648→19.94 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2059 0 34 218 2311
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0122187
X-RAY DIFFRACTIONf_angle_d1.3562980
X-RAY DIFFRACTIONf_chiral_restr0.097305
X-RAY DIFFRACTIONf_plane_restr0.007387
X-RAY DIFFRACTIONf_dihedral_angle_d13.621813
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 10

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
1.648-1.7070.3721360.3342342247885
1.707-1.7750.3471210.2482460258189
1.775-1.8560.2161400.1712527266791
1.856-1.9540.1671300.1322594272494
1.954-2.0760.1631440.1252642278695
2.076-2.2360.1481390.1272637277695
2.236-2.4610.1721470.1322702284997
2.461-2.8160.1521440.1382720286497
2.816-3.5450.1741440.1422775291999
3.545-19.9420.161560.1628643020100
Refinement TLS params.

Method: refined / Refine-ID: X-RAY DIFFRACTION

IDL11 (°2)L12 (°2)L13 (°2)L22 (°2)L23 (°2)L33 (°2)S11 (Å °)S12 (Å °)S13 (Å °)S21 (Å °)S22 (Å °)S23 (Å °)S31 (Å °)S32 (Å °)S33 (Å °)T11 (Å2)T12 (Å2)T13 (Å2)T22 (Å2)T23 (Å2)T33 (Å2)Origin x (Å)Origin y (Å)Origin z (Å)
10.2717-0.14470.10270.1755-0.03040.1826-0.0028-0.02160.0109-0.02640.0041-0.00110.0129-0.0003-0.00370.1162-0.00270.00350.11370.00270.1113-9.6509-1.743215.8697
20.2761-0.19720.15621.1014-0.64190.7715-0.05620.0630.04020.0293-0.0135-0.00690.0190.00760.06530.1374-00.00430.12710.00240.1426-5.95655.308913.0908
Refinement TLS group
IDRefine-IDRefine TLS-IDSelection detailsAuth asym-IDAuth seq-ID
1X-RAY DIFFRACTION1chain A or element Zn and not element HA0
2X-RAY DIFFRACTION2chain I and not element HA - I0

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