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- PDB-1enr: CO-CRYSTALS OF DEMETALLIZED CONCANAVALIN A WITH ZINC AND CALCIUM ... -

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Basic information

Entry
Database: PDB / ID: 1enr
TitleCO-CRYSTALS OF DEMETALLIZED CONCANAVALIN A WITH ZINC AND CALCIUM HAVING A ZINC ION BOUND IN THE S1 SITE AND A CALCIUM ION BOUND IN THE S2 SITE
ComponentsCONCANAVALIN A
KeywordsPLANT LECTIN (AGGLUTININ) / CONCANAVALIN A / PLANT LECTIN / AGGLUTININ
Function / homology
Function and homology information


regulation of defense response to virus / D-mannose binding / defense response / metal ion binding
Similarity search - Function
Legume lectin / Legume lectin, alpha chain, conserved site / Legume lectins alpha-chain signature. / Legume lectins beta-chain signature. / Legume lectin domain / Legume lectin, beta chain, Mn/Ca-binding site / Legume lectin domain / Jelly Rolls - #200 / Concanavalin A-like lectin/glucanase domain superfamily / Jelly Rolls ...Legume lectin / Legume lectin, alpha chain, conserved site / Legume lectins alpha-chain signature. / Legume lectins beta-chain signature. / Legume lectin domain / Legume lectin, beta chain, Mn/Ca-binding site / Legume lectin domain / Jelly Rolls - #200 / Concanavalin A-like lectin/glucanase domain superfamily / Jelly Rolls / Sandwich / Mainly Beta
Similarity search - Domain/homology
Biological speciesCanavalia ensiformis (jack bean)
MethodX-RAY DIFFRACTION / Resolution: 1.83 Å
AuthorsBouckaert, J. / Loris, R. / Poortmans, F. / Wyns, L.
Citation
Journal: J.Biol.Chem. / Year: 1996
Title: Sequential structural changes upon zinc and calcium binding to metal-free concanavalin A.
Authors: Bouckaert, J. / Poortmans, F. / Wyns, L. / Loris, R.
#1: Journal: Proteins / Year: 1995
Title: Crystallographic Structure of Metal-Free Concanavalin a at 2.5 Angstrom Resolution
Authors: Bouckaert, J. / Loris, R. / Poortmans, F. / Wyns, L.
History
DepositionMar 20, 1996Processing site: BNL
Revision 1.0Aug 17, 1996Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Apr 18, 2018Group: Advisory / Data collection / Other
Category: diffrn_detector / pdbx_database_status / pdbx_unobs_or_zero_occ_residues
Item: _diffrn_detector.detector / _pdbx_database_status.process_site
Revision 1.4Feb 7, 2024Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_residues / struct_conn / struct_ref_seq_dif / 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.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_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_ref_seq_dif.details / _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: CONCANAVALIN A
hetero molecules


Theoretical massNumber of molelcules
Total (without water)25,7283
Polymers25,6221
Non-polymers1052
Water2,540141
1
A: CONCANAVALIN A
hetero molecules

A: CONCANAVALIN A
hetero molecules

A: CONCANAVALIN A
hetero molecules

A: CONCANAVALIN A
hetero molecules


Theoretical massNumber of molelcules
Total (without water)102,91112
Polymers102,4904
Non-polymers4228
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_545-x,-y-1,z1
crystal symmetry operation3_556-x,y,-z+11
crystal symmetry operation4_546x,-y-1,-z+11
Buried area10090 Å2
ΔGint-241 kcal/mol
Surface area33290 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)63.090, 87.080, 89.110
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number23
Space group name H-MI222
Components on special symmetry positions
IDModelComponents
11A-354-

HOH

DetailsTHE ASYMMETRIC UNIT CONTAINS ONE MONOMER OF 237 AMINO ACIDS.

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Components

#1: Protein CONCANAVALIN A / CON A


Mass: 25622.385 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: ZINC/CALCIUM COMPLEX / Source: (natural) Canavalia ensiformis (jack bean) / References: UniProt: P02866
#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 141 / 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: 2.39 Å3/Da / Density % sol: 48.9 %
Crystal growpH: 7 / Details: pH 7.
Crystal
*PLUS
Density % sol: 46.9 %
Crystal grow
*PLUS
pH: 7.1 / Method: unknown
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
11.8 M11(NH4)2SO4
2200 mM11NaH2PO4
36 mg/mlmetal-free ConA12
430 mM12ZnCl2
530 mM12CaCl2

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Data collection

Diffraction sourceWavelength: 1.5418
DetectorType: ENRAF-NONIUS FAST / Detector: DIFFRACTOMETER / Date: Jun 13, 1995
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.8→11.7 Å / Num. obs: 21804 / % possible obs: 99.4 % / Observed criterion σ(I): 0 / Rmerge(I) obs: 0.062
Reflection
*PLUS
Highest resolution: 1.8 Å / Num. obs: 21738 / Num. measured all: 158149

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Processing

Software
NameVersionClassification
X-PLOR3.1model building
X-PLOR3.1refinement
MADNESdata reduction
CCP4data scaling
X-PLOR3.1phasing
RefinementResolution: 1.83→10 Å / σ(F): 0
RfactorNum. reflection% reflection
Rwork0.1761 --
obs0.1761 21738 99.4 %
Displacement parametersBiso mean: 16 Å2
Refine analyzeLuzzati coordinate error obs: 0.15 Å
Refinement stepCycle: LAST / Resolution: 1.83→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1809 0 2 141 1952
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.009
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_deg1.669
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d27.35
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.471
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 / Version: 3.1 / Classification: refinement
Refinement
*PLUS
Highest resolution: 1.8 Å
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg27.357
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.471

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