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- PDB-2zht: Crystal structure of BACE1 at pH 4.5 -

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Basic information

Entry
Database: PDB / ID: 2zht
TitleCrystal structure of BACE1 at pH 4.5
ComponentsBeta-secretase 1
KeywordsHYDROLASE / pH 4.5 / Alternative splicing / Aspartyl protease / Glycoprotein / Membrane / Protease / Transmembrane / Zymogen
Function / homology
Function and homology information


memapsin 2 / Golgi-associated vesicle lumen / signaling receptor ligand precursor processing / beta-aspartyl-peptidase activity / amyloid precursor protein catabolic process / amyloid-beta formation / membrane protein ectodomain proteolysis / detection of mechanical stimulus involved in sensory perception of pain / amyloid-beta metabolic process / cellular response to manganese ion ...memapsin 2 / Golgi-associated vesicle lumen / signaling receptor ligand precursor processing / beta-aspartyl-peptidase activity / amyloid precursor protein catabolic process / amyloid-beta formation / membrane protein ectodomain proteolysis / detection of mechanical stimulus involved in sensory perception of pain / amyloid-beta metabolic process / cellular response to manganese ion / prepulse inhibition / protein serine/threonine kinase binding / cellular response to copper ion / presynaptic modulation of chemical synaptic transmission / multivesicular body / hippocampal mossy fiber to CA3 synapse / response to lead ion / trans-Golgi network / recycling endosome / protein processing / positive regulation of neuron apoptotic process / cellular response to amyloid-beta / late endosome / synaptic vesicle / peptidase activity / amyloid-beta binding / endopeptidase activity / amyloid fibril formation / lysosome / aspartic-type endopeptidase activity / early endosome / endosome membrane / endosome / membrane raft / Amyloid fiber formation / endoplasmic reticulum lumen / axon / neuronal cell body / dendrite / Golgi apparatus / enzyme binding / cell surface / proteolysis / membrane / plasma membrane
Similarity search - Function
Beta-secretase BACE1 / Beta-secretase BACE / Memapsin-like / Eukaryotic aspartyl protease / Aspartic peptidase A1 family / Peptidase family A1 domain / Peptidase family A1 domain profile. / Cathepsin D, subunit A; domain 1 / Acid Proteases / Aspartic peptidase, active site ...Beta-secretase BACE1 / Beta-secretase BACE / Memapsin-like / Eukaryotic aspartyl protease / Aspartic peptidase A1 family / Peptidase family A1 domain / Peptidase family A1 domain profile. / Cathepsin D, subunit A; domain 1 / Acid Proteases / Aspartic peptidase, active site / Eukaryotic and viral aspartyl proteases active site. / Aspartic peptidase domain superfamily / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.35 Å
AuthorsShimizu, H. / Nukina, N.
CitationJournal: Mol.Cell.Biol. / Year: 2008
Title: Crystal structure of an active form of BACE1, an enzyme responsible for amyloid beta protein production
Authors: Shimizu, H. / Tosaki, A. / Kaneko, K. / Hisano, T. / Sakurai, T. / Nukina, N.
History
DepositionFeb 8, 2008Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Apr 22, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Nov 1, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ref_seq_dif
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Beta-secretase 1


Theoretical massNumber of molelcules
Total (without water)45,9011
Polymers45,9011
Non-polymers00
Water3,243180
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)102.594, 102.594, 171.159
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number178
Space group name H-MP6122
Components on special symmetry positions
IDModelComponents
11A-522-

HOH

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Components

#1: Protein Beta-secretase 1 / Beta-site APP cleaving enzyme 1 / Beta-site amyloid precursor protein cleaving enzyme 1 / Membrane- ...Beta-site APP cleaving enzyme 1 / Beta-site amyloid precursor protein cleaving enzyme 1 / Membrane-associated aspartic protease 2 / Memapsin-2 / Aspartyl protease 2 / Asp 2 / ASP2 / BACE1


Mass: 45900.500 Da / Num. of mol.: 1 / Fragment: catalytic domain, UNP residues 45-454
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BACE1 / Plasmid: pet11a / Species (production host): Escherichia coli / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 / References: UniProt: P56817, memapsin 2
#2: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 180 / 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: 2.83 Å3/Da / Density % sol: 56.58 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 6.5
Details: 22% PEG 5000 MME, 0.2M Sodium Acetate pH 6.5, 0.2M Ammonium Iodide, VAPOR DIFFUSION, SITTING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL44B2 / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 210 / Detector: CCD / Date: Jun 28, 2006
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.35→100 Å / Num. obs: 20878 / % possible obs: 90 % / Redundancy: 5.2 % / Biso Wilson estimate: 33.5 Å2 / Rsym value: 0.049 / Net I/σ(I): 31.3
Reflection shellResolution: 2.35→2.43 Å / Redundancy: 5.1 % / Mean I/σ(I) obs: 4.5 / Num. unique all: 2118 / Rsym value: 0.368 / % possible all: 94.9

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Processing

Software
NameVersionClassification
CNS1.1refinement
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2ZHV

2zhv


Resolution: 2.35→48.01 Å / Rfactor Rfree error: 0.008 / Data cutoff high absF: 2256767.04 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.244 1006 4.8 %RANDOM
Rwork0.197 ---
obs0.197 20806 90.9 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 47.6678 Å2 / ksol: 0.3527 e/Å3
Refinement stepCycle: LAST / Resolution: 2.35→48.01 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2914 0 0 180 3094
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_angle_deg1.3
LS refinement shellHighest resolution: 2.35 Å / Total num. of bins used: 6 /
Num. reflection% reflection
Rwork3368 -
Rfree-4.6 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2ion.paramion.top
X-RAY DIFFRACTION3water_rep.param

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