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- PDB-1cnx: SECONDARY INTERACTIONS SIGNIFICANTLY REMOVED FROM THE SULFONAMIDE... -

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Basic information

Entry
Database: PDB / ID: 1cnx
TitleSECONDARY INTERACTIONS SIGNIFICANTLY REMOVED FROM THE SULFONAMIDE BINDING POCKET OF CARBONIC ANHYDRASE II INFLUENCE BINDING CONSTANTS
ComponentsCARBONIC ANHYDRASE II
KeywordsLYASE (OXO-ACID)
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-EG2 / : / Carbonic anhydrase 2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / Resolution: 1.9 Å
AuthorsBoriack, P.A. / Christianson, D.W.
CitationJournal: J.Med.Chem. / Year: 1995
Title: Secondary interactions significantly removed from the sulfonamide binding pocket of carbonic anhydrase II influence inhibitor binding constants.
Authors: Boriack, P.A. / Christianson, D.W. / Kingery-Wood, J. / Whitesides, G.M.
History
DepositionJul 21, 1995Processing site: BNL
Revision 1.0Nov 14, 1995Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 7, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / 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.process_site / _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_conn.ptnr2_label_seq_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

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Assembly

Deposited unit
A: CARBONIC ANHYDRASE II
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,8864
Polymers29,2891
Non-polymers5973
Water1,58588
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
Atom site foot note1: GLN 28 - SER 29 OMEGA = 354.27 PEPTIDE BOND DEVIATES SIGNIFICANTLY FROM TRANS CONFORMATION
2: CIS PROLINE - PRO 30 / 3: CIS PROLINE - PRO 202

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Components

#1: Protein CARBONIC ANHYDRASE II / CARBONATE DEHYDRATASE / HCA II


Mass: 29289.062 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Homo sapiens (human) / References: UniProt: P00918, carbonic anhydrase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-HG / MERCURY (II) ION


Mass: 200.590 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Hg
#4: Chemical ChemComp-EG2 / AMINODI(ETHYLOXY)ETHYLAMINOCARBONYLBENZENESULFONAMIDE


Mass: 331.388 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C13H21N3O5S
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 88 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsRESIDUES 125 AND 127 ARE ADJACENT.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.15 Å3/Da / Density % sol: 42.69 %
Crystal grow
*PLUS
pH: 8 / Method: vapor diffusion, sitting drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
10.3 mMenzyme1drop
250 mMTris-HCl1drop
3105 mM1dropNaCl
43 mM1dropNaN3
54.3 mMinhibitor1drop
71.75-2.5 Mammonium sulfate1reservoir
6methanol1drop

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 1.9 Å / Num. obs: 11205 / Num. measured all: 34958 / Rmerge(I) obs: 0.089

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Processing

SoftwareName: PROLSQ / Classification: refinement
RefinementRfactor obs: 0.174 / Highest resolution: 1.9 Å
Refinement stepCycle: LAST / Highest resolution: 1.9 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2039 0 24 88 2151
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.011
X-RAY DIFFRACTIONp_angle_d1.8
X-RAY DIFFRACTIONp_angle_deg
X-RAY DIFFRACTIONp_planar_d
X-RAY DIFFRACTIONp_hb_or_metal_coord
X-RAY DIFFRACTIONp_mcbond_it
X-RAY DIFFRACTIONp_mcangle_it
X-RAY DIFFRACTIONp_scbond_it
X-RAY DIFFRACTIONp_scangle_it
X-RAY DIFFRACTIONp_plane_restr
X-RAY DIFFRACTIONp_chiral_restr
X-RAY DIFFRACTIONp_singtor_nbd
X-RAY DIFFRACTIONp_multtor_nbd
X-RAY DIFFRACTIONp_xhyhbond_nbd
X-RAY DIFFRACTIONp_xyhbond_nbd
X-RAY DIFFRACTIONp_planar_tor
X-RAY DIFFRACTIONp_staggered_tor
X-RAY DIFFRACTIONp_orthonormal_tor
X-RAY DIFFRACTIONp_transverse_tor
X-RAY DIFFRACTIONp_special_tor
Refinement
*PLUS
Lowest resolution: 6.5 Å / Num. reflection obs: 10446
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_plane_restr0.01
X-RAY DIFFRACTIONp_chiral_restr0.111

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