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- PDB-1alj: ALKALINE PHOSPHATASE MUTANT (H412N) -

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Basic information

Entry
Database: PDB / ID: 1alj
TitleALKALINE PHOSPHATASE MUTANT (H412N)
ComponentsALKALINE PHOSPHATASE
KeywordsHYDROLASE (PHOSPHORIC MONOESTER) / TRANSFERASE (PHOSPHO / ALCOHOL ACCEPTOR)
Function / homology
Function and homology information


oxidoreductase activity, acting on phosphorus or arsenic in donors / alkaline phosphatase / alkaline phosphatase activity / hydrogenase (acceptor) activity / phosphoprotein phosphatase activity / protein dephosphorylation / outer membrane-bounded periplasmic space / periplasmic space / magnesium ion binding / zinc ion binding
Similarity search - Function
Alkaline phosphatase, active site / Alkaline phosphatase active site. / Alkaline phosphatase / Alkaline phosphatase / Alkaline phosphatase homologues / Alkaline Phosphatase, subunit A / Alkaline Phosphatase, subunit A / Alkaline-phosphatase-like, core domain superfamily / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
PHOSPHATE ION / Alkaline phosphatase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / Resolution: 2.6 Å
AuthorsMa, L. / Tibbitts, T.T. / Kantrowitz, E.R.
Citation
Journal: Protein Sci. / Year: 1995
Title: Escherichia coli alkaline phosphatase: X-ray structural studies of a mutant enzyme (His-412-->Asn) at one of the catalytically important zinc binding sites.
Authors: Ma, L. / Tibbitts, T.T. / Kantrowitz, E.R.
#1: Journal: J.Mol.Biol. / Year: 1991
Title: Reaction Mechanism of Alkaline Phosphatase Based on Crystal Structures. Two Metal Ion Catalysis
Authors: Kim, E.E. / Wyckoff, H.W.
#2: Journal: J.Biol.Chem. / Year: 1994
Title: Mutations at Histidine 412 Alter Zinc Binding and Eliminate Transferase Activity in Escherichia Coli Alkaline Phosphatase
Authors: Ma, L. / Kantrowitz, E.R.
History
DepositionJun 2, 1995Processing site: BNL
Revision 1.0Nov 14, 1995Provider: repository / Type: Initial release
Revision 1.1Mar 3, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 3, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / 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.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: ALKALINE PHOSPHATASE
B: ALKALINE PHOSPHATASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)94,5108
Polymers94,1412
Non-polymers3696
Water3,945219
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area8300 Å2
ΔGint-82 kcal/mol
Surface area27290 Å2
MethodPISA
Unit cell
Length a, b, c (Å)194.760, 167.740, 76.230
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number23
Space group name H-MI222
DetailsTHERE IS A DIMER (IDENTICAL CHAINS OF 449 RESIDUES) PER ASYMMETRIC UNIT. THESE SUBUNITS, DESIGNATED "A" AND "B". THE FIRST THREE RESIDUES WERE DELETED DURING THE REFINEMENT.

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Components

#1: Protein ALKALINE PHOSPHATASE


Mass: 47070.355 Da / Num. of mol.: 2 / Mutation: H412N
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Strain: EK1498 / Gene: PHOA / Plasmid: PEK202 / Gene (production host): PHOA / Production host: Escherichia coli (E. coli) / References: UniProt: P00634, alkaline phosphatase
#2: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#3: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#4: Chemical ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: PO4
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 219 / 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: 3.31 Å3/Da / Density % sol: 62.79 %
Crystal growDetails: THIS ENTRY IS A MUTANT ALKALINE PHOSPHATE (H412N) IN WHICH HIS 412 IS REPLACED BY ASN, DETERMINED WITH CRYSTALS SOAKED IN STABILIZATION BUFFER CONTAINING NO ADDED ZINC. THERE IS ONE ZINC AND ...Details: THIS ENTRY IS A MUTANT ALKALINE PHOSPHATE (H412N) IN WHICH HIS 412 IS REPLACED BY ASN, DETERMINED WITH CRYSTALS SOAKED IN STABILIZATION BUFFER CONTAINING NO ADDED ZINC. THERE IS ONE ZINC AND ONE MAGNESIUM COMPLEXED WITH INORGANIC PHOSPHATE BOUND IN EACH OF THE TWO ACTIVE SITES.
Crystal grow
*PLUS
pH: 9.5 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
139 %satammonium sulfate1drop
2100 mMTris-HCl1drop
310 mM1dropMgCl2

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Data collection

Diffraction sourceWavelength: 1.54
DetectorType: ADSC / Detector: AREA DETECTOR / Date: May 14, 1993
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 2.5→26.3 Å / Num. obs: 36882 / % possible obs: 98.4 % / Observed criterion σ(I): 3 / Redundancy: 4.6 % / Rmerge(I) obs: 0.108
Reflection
*PLUS
Rmerge(I) obs: 0.108

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Processing

Software
NameClassification
ADSCdata collection
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementResolution: 2.6→8 Å / σ(F): 0 /
RfactorNum. reflection
Rwork0.166 -
obs0.166 38875
Refine analyzeLuzzati coordinate error obs: 0.27 Å
Refinement stepCycle: LAST / Resolution: 2.6→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6558 0 14 219 6791
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.02
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_deg2.01
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d22.8
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.67
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
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg22.8
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.67

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