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- PDB-1e43: Native structure of chimaeric amylase from B. amyloliquefaciens a... -

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Basic information

Entry
Database: PDB / ID: 1.0E+43
TitleNative structure of chimaeric amylase from B. amyloliquefaciens and B. licheniformis at 1.7A
ComponentsALPHA-AMYLASE
KeywordsHYDROLASE / AMYLASE / FAMILY 13
Function / homology
Function and homology information


alpha-amylase / alpha-amylase activity / carbohydrate metabolic process / calcium ion binding / extracellular region
Similarity search - Function
Elongation Factor Tu (Ef-tu); domain 3 - #140 / Alpha-amylase, thermostable / Alpha-amylase C-terminal, prokaryotic / Alpha-amylase C-terminal / Alpha amylase, catalytic domain / Glycosyl hydrolase, family 13, catalytic domain / Alpha-amylase domain / Golgi alpha-mannosidase II / Elongation Factor Tu (Ef-tu); domain 3 / Glycosyl hydrolase, all-beta ...Elongation Factor Tu (Ef-tu); domain 3 - #140 / Alpha-amylase, thermostable / Alpha-amylase C-terminal, prokaryotic / Alpha-amylase C-terminal / Alpha amylase, catalytic domain / Glycosyl hydrolase, family 13, catalytic domain / Alpha-amylase domain / Golgi alpha-mannosidase II / Elongation Factor Tu (Ef-tu); domain 3 / Glycosyl hydrolase, all-beta / Glycosidases / Glycoside hydrolase superfamily / TIM Barrel / Alpha-Beta Barrel / Beta Barrel / Immunoglobulin-like / Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Alpha-amylase / Alpha-amylase
Similarity search - Component
Biological speciesBACILLUS AMYLOLIQUEFACIENS (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.7 Å
AuthorsBrzozowski, A.M. / Lawson, D.M. / Turkenburg, J.P. / Bisgaard-Frantzen, H. / Svendsen, A. / Borchert, T.V. / Dauter, Z. / Wilson, K.S. / Davies, G.J.
CitationJournal: Biochemistry / Year: 2000
Title: Structural Analysis of a Chimeric Bacterial Alpha-Amylase. High Resolution Analysis of Native and Ligand Complexes
Authors: Brzozowski, A.M. / Lawson, D.M. / Turkenburg, J.P. / Bisgaard-Frantzen, H. / Svendsen, A. / Borchert, T.V. / Dauter, Z. / Wilson, K.S. / Davies, G.J.
History
DepositionJun 27, 2000Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 21, 2001Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3May 8, 2019Group: Advisory / Data collection ...Advisory / Data collection / Experimental preparation / Other
Category: database_PDB_rev / database_PDB_rev_record ...database_PDB_rev / database_PDB_rev_record / exptl_crystal_grow / pdbx_database_proc / pdbx_database_status / pdbx_unobs_or_zero_occ_atoms
Item: _exptl_crystal_grow.method / _exptl_crystal_grow.temp / _pdbx_database_status.recvd_author_approval
Revision 1.4Dec 13, 2023Group: Advisory / Data collection ...Advisory / Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / pdbx_unobs_or_zero_occ_atoms / 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.status_code_sf / _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_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: ALPHA-AMYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)55,2226
Polymers55,0381
Non-polymers1835
Water16,808933
1


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)52.200, 76.100, 236.500
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Space group name H-MC2221

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Components

#1: Protein ALPHA-AMYLASE


Mass: 55038.410 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: CHIMAERIC STRUCTURE CONSISTING OF RESIDUES 1 - 300 OF B. AMYLOLIQUEFACIENS AND RESIDUES 301 - 483 OF B. LICHENIFORMIS
Source: (gene. exp.) BACILLUS AMYLOLIQUEFACIENS (bacteria) / Description: SYNTHETIC GENE / Production host: BACILLUS AMYLOLIQUEFACIENS (bacteria) / References: UniProt: P00692, UniProt: P06278, alpha-amylase
#2: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Ca
#3: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 933 / 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: 2.34 Å3/Da / Density % sol: 47 %
Crystal growTemperature: 291 K / Method: vapor diffusion, hanging drop / pH: 10
Details: CRYSTALS WERE GROWN AT 18C USING THE HANGING DROP METHOD WITH 8-13% MONOMETHYL ETHER POLYETHYLENE GLYCOL 2000 OR 5000 AS PRECIPITANT. DROPS WERE BUFFERED WITH 0.1M TRIS/HCL PH 7.5 CONTAINING ...Details: CRYSTALS WERE GROWN AT 18C USING THE HANGING DROP METHOD WITH 8-13% MONOMETHYL ETHER POLYETHYLENE GLYCOL 2000 OR 5000 AS PRECIPITANT. DROPS WERE BUFFERED WITH 0.1M TRIS/HCL PH 7.5 CONTAINING 5MM CACL2 AND THE PROTEIN CONCENTRATION WAS 30-35MG/ML.
Crystal grow
*PLUS
Temperature: 18 ℃ / pH: 7.5 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
18-13 %(w/v)mmePEG20001reservoiror PEG5000
20.1 MTris-HCl1drop
35 mM1dropCaCl2
430-35 Mprotein1drop

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-4 / Wavelength: 0.9386
DetectorType: ADSC-Q4 / Detector: CCD / Date: Sep 15, 1999
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9386 Å / Relative weight: 1
ReflectionResolution: 1.7→30 Å / Num. obs: 51292 / % possible obs: 98 % / Redundancy: 3 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 15
Reflection shellResolution: 1.7→1.76 Å / Redundancy: 3.1 % / Rmerge(I) obs: 0.081 / Mean I/σ(I) obs: 13 / % possible all: 99
Reflection
*PLUS
% possible obs: 98 % / Rmerge(I) obs: 0.07
Reflection shell
*PLUS
Highest resolution: 1.7 Å / % possible obs: 99 % / Mean I/σ(I) obs: 13

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Processing

Software
NameClassification
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
CCP4phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1E3X

1e3x


Resolution: 1.7→20 Å / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.09 / ESU R Free: 0.1
RfactorNum. reflection% reflectionSelection details
Rfree0.185 2491 5 %RANDOM
Rwork0.133 ---
obs-51292 98 %-
Displacement parametersBiso mean: 10.2 Å2
Refinement stepCycle: LAST / Resolution: 1.7→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3900 0 5 933 4838
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONp_bond_d0.010.02
X-RAY DIFFRACTIONp_angle_d0.0260.04
X-RAY DIFFRACTIONp_angle_deg
X-RAY DIFFRACTIONp_planar_d0.0280.05
X-RAY DIFFRACTIONp_hb_or_metal_coord
X-RAY DIFFRACTIONp_mcbond_it1.0732
X-RAY DIFFRACTIONp_mcangle_it1.4763
X-RAY DIFFRACTIONp_scbond_it1.6952
X-RAY DIFFRACTIONp_scangle_it2.5323
X-RAY DIFFRACTIONp_plane_restr0.0120.02
X-RAY DIFFRACTIONp_chiral_restr0.1050.15
X-RAY DIFFRACTIONp_singtor_nbd0.1740.3
X-RAY DIFFRACTIONp_multtor_nbd0.2070.3
X-RAY DIFFRACTIONp_xhyhbond_nbd
X-RAY DIFFRACTIONp_xyhbond_nbd0.1040.3
X-RAY DIFFRACTIONp_planar_tor47
X-RAY DIFFRACTIONp_staggered_tor13.315
X-RAY DIFFRACTIONp_orthonormal_tor
X-RAY DIFFRACTIONp_transverse_tor29.520
X-RAY DIFFRACTIONp_special_tor
Software
*PLUS
Name: REFMAC / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.133
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: p_bond_d / Dev ideal: 0.01

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