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- PDB-1jz3: E. COLI (lacZ) BETA-GALACTOSIDASE-TRAPPED 2-DEOXY-GALACTOSYL ENZY... -

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Basic information

Entry
Database: PDB / ID: 1jz3
TitleE. COLI (lacZ) BETA-GALACTOSIDASE-TRAPPED 2-DEOXY-GALACTOSYL ENZYME INTERMEDIATE
ComponentsBeta-Galactosidase
KeywordsHYDROLASE / TIM BARREL (ALPHA/BETA BARREL) / JELLY-ROLL BARREL / IMMUNOGLOBULIN / BETA SUPERSANDWICH
Function / homology
Function and homology information


alkali metal ion binding / lactose catabolic process / beta-galactosidase complex / beta-galactosidase / beta-galactosidase activity / carbohydrate binding / magnesium ion binding / identical protein binding
Similarity search - Function
Glycoside hydrolase, family 2, beta-galactosidase / Beta galactosidase small chain/ domain 5 / Beta-galactosidase, domain 4 / Beta galactosidase small chain / Beta-galactosidase, domain 4 / Beta galactosidase small chain / : / Glycoside hydrolase, family 2, active site / Glycosyl hydrolases family 2 acid/base catalyst. / Glycoside hydrolase, family 2, conserved site ...Glycoside hydrolase, family 2, beta-galactosidase / Beta galactosidase small chain/ domain 5 / Beta-galactosidase, domain 4 / Beta galactosidase small chain / Beta-galactosidase, domain 4 / Beta galactosidase small chain / : / Glycoside hydrolase, family 2, active site / Glycosyl hydrolases family 2 acid/base catalyst. / Glycoside hydrolase, family 2, conserved site / Glycosyl hydrolases family 2 signature 1. / Beta-galactosidase; Chain A, domain 5 - #10 / Glycoside hydrolase, family 2 / Glycosyl hydrolases family 2, sugar binding domain / Glycoside hydrolase family 2, catalytic domain / Glycosyl hydrolases family 2, sugar binding domain / Glycosyl hydrolases family 2, TIM barrel domain / Glycoside hydrolase, family 2, immunoglobulin-like beta-sandwich / Glycosyl hydrolases family 2 / Beta-Galactosidase/glucuronidase domain superfamily / Glycoside hydrolase-type carbohydrate-binding / Beta-galactosidase; Chain A, domain 5 / Galactose mutarotase-like domain superfamily / Galactose-binding domain-like / Galactose-binding-like domain superfamily / Distorted Sandwich / Glycosidases / Glycoside hydrolase superfamily / Jelly Rolls / TIM Barrel / Alpha-Beta Barrel / Immunoglobulin-like fold / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
2-deoxy-alpha-D-galactopyranose / Beta-galactosidase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.75 Å
AuthorsJuers, D.H. / Matthews, B.W.
Citation
Journal: Biochemistry / Year: 2001
Title: A Structural View of the Action of Escherichia Coli (Lacz) Beta-Galactosidase
Authors: Juers, D.H. / Heightman, T.D. / Vasella, A. / McCarter, J.D. / Mackenzie, L. / Withers, S.G. / Matthews, B.W.
#1: Journal: Protein Sci. / Year: 2000
Title: High Resolution Structure of Beta-Galactosidase in a New Crystal Form Reveals Multiple Metal-Binding Sites and Provides a Structural Basis for Alpha-Complementation
Authors: Juers, D.H. / Jacobson, R.H. / Wigley, D. / Zhang, X.J. / Huber, R.E. / Tronrud, D.E. / Matthews, B.W.
#2: Journal: Protein Sci. / Year: 1999
Title: Structural Comparisons of Tim Barrel Proteins Suggest Functional and Evolutionary Relationships between Beta-Galactosidase and Other Glycohydrolases
Authors: Juers, D.H. / Huber, R.E. / Matthews, B.W.
#3: Journal: Nature / Year: 1994
Title: Three-Dimensional Structure of Beta-Galactosidase from E. Coli
Authors: Jacobson, R.H. / Zhang, X.J. / Dubose, R.F. / Matthews, B.W.
#4: Journal: J.Mol.Biol. / Year: 1992
Title: Crystallization of beta-galactosidase from Escherichia coli
Authors: Jacobson, R.H. / Matthews, B.W.
History
DepositionSep 13, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 7, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jul 29, 2020Group: Advisory / Database references ...Advisory / Database references / Derived calculations / Structure summary
Category: chem_comp / database_PDB_caveat ...chem_comp / database_PDB_caveat / entity / pdbx_entity_nonpoly / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _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.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_asym_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_asym_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.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_auth_asym_id / _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.ptnr1_symmetry / _struct_conn.ptnr2_auth_asym_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_conn.ptnr2_symmetry / _struct_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.4Aug 16, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.5Nov 13, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Beta-Galactosidase
B: Beta-Galactosidase
C: Beta-Galactosidase
D: Beta-Galactosidase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)476,894155
Polymers466,0254
Non-polymers10,869151
Water77,3564294
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area46960 Å2
ΔGint-62 kcal/mol
Surface area134510 Å2
MethodPISA
Unit cell
Length a, b, c (Å)149.560, 168.190, 200.690
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Cell settingorthorhombic
Space group name H-MP212121

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Components

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Protein / Sugars , 2 types, 8 molecules ABCD

#1: Protein
Beta-Galactosidase / E.C.3.2.1.23 / LACTASE / lacZ / beta-d-galactosidase


Mass: 116506.266 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Gene: lacZ / Plasmid: pET15B / Production host: Escherichia coli (E. coli) / Strain (production host): JM109 / References: UniProt: P00722, beta-galactosidase
#2: Sugar
ChemComp-2DG / 2-deoxy-alpha-D-galactopyranose / 2-deoxy-alpha-D-lyxo-hexopyranose / 2-deoxy-alpha-D-galactose / 2-deoxy-D-galactose / 2-deoxy-galactose


Type: D-saccharide, alpha linking / Mass: 164.156 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Formula: C6H12O5

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Non-polymers , 5 types, 4441 molecules

#3: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 17 / Source method: obtained synthetically / Formula: Mg
#4: Chemical
ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 16 / Source method: obtained synthetically / Formula: Na
#5: Chemical
ChemComp-BTB / 2-[BIS-(2-HYDROXY-ETHYL)-AMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL / BIS-TRIS BUFFER


Mass: 209.240 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C8H19NO5 / Comment: pH buffer*YM
#6: Chemical...
ChemComp-DMS / DIMETHYL SULFOXIDE


Mass: 78.133 Da / Num. of mol.: 110 / Source method: obtained synthetically / Formula: C2H6OS / Comment: DMSO, precipitant*YM
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 4294 / Source method: isolated from a natural source / Formula: H2O

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Details

Has protein modificationY

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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: 2.7 Å3/Da / Density % sol: 55 %
Crystal growTemperature: 288 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: Bis-Tris, PEG 8000, MgCl2, NaCl, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 288K, pH 6.50
Crystal grow
*PLUS
pH: 6.5 / Method: vapor diffusion
Details: used macroseeding, Juers, D.H., (2000) Protein Sci., 9, 1685.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
120 mg/mlprotein1drop
2100 mMBis-Tris1droppH6.5
3200 mM1dropMgCl2
41 mMdithiothreitol1drop
55 mM1dropNaCl
610 %PEG80001reservoir
7100 mMbis-Tris1reservoirpH6.5
8200 mM1reservoirMgCl2
9100 mM1reservoirNaCl
1010 mMdithiothreitol1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 5.0.1 / Wavelength: 1 / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Mar 13, 1998
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
IDWavelength (Å)Relative weight
111
211
ReflectionResolution: 1.75→16 Å / Num. all: 470782 / Num. obs: 470782 / % possible obs: 93.8 % / Redundancy: 3.3 % / Biso Wilson estimate: 15.6 Å2 / Rmerge(I) obs: 0.061 / Net I/σ(I): 14
Reflection shellHighest resolution: 1.75 Å / Rmerge(I) obs: 0.46 / Mean I/σ(I) obs: 2.2 / % possible all: 87.5
Reflection
*PLUS
% possible obs: 94 % / Redundancy: 3.3 % / Rmerge(I) obs: 0.061
Reflection shell
*PLUS
Rmerge(I) obs: 0.46 / Mean I/σ(I) obs: 2.2

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Processing

Software
NameVersionClassification
TNTrefinement
MOSFLMdata reduction
CCP4(SCALA)data scaling
TNTphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1DP0

1dp0


Resolution: 1.75→16 Å / Isotropic thermal model: ISOTROPIC / Cross valid method: THROUGHOUT / Stereochemistry target values: TNT
RfactorNum. reflection% reflectionSelection details
Rfree0.222 6833 1.5 %RANDOM
Rwork0.158 ---
all-470782 --
obs-470782 93.8 %-
Solvent computationSolvent model: BABINET PRINCIPLE / Bsol: 115 Å2 / ksol: 0.7 e/Å3
Displacement parametersBiso mean: 23.6 Å2
Baniso -1Baniso -2Baniso -3
1--2.3 Å20 Å20 Å2
2--4 Å20 Å2
3----1.7 Å2
Refinement stepCycle: LAST / Resolution: 1.75→16 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms32506 0 569 4294 37369
Refine LS restraints
Refine-IDTypeDev idealNumberWeight
X-RAY DIFFRACTIONt_bond_d0.016339011.3
X-RAY DIFFRACTIONt_angle_deg2.748458671.7
X-RAY DIFFRACTIONt_dihedral_angle_d17.4192900
X-RAY DIFFRACTIONt_incorr_chiral_ct00
X-RAY DIFFRACTIONt_pseud_angle14.42481
X-RAY DIFFRACTIONt_trig_c_planes0.0179161.7
X-RAY DIFFRACTIONt_gen_planes0.01848737
X-RAY DIFFRACTIONt_it8.4335120
X-RAY DIFFRACTIONt_nbd0.083775
Refinement
*PLUS
Rfactor obs: 0.158 / Rfactor Rfree: 0.222 / Rfactor Rwork: 0.158
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev idealWeight
X-RAY DIFFRACTIONt_angle_deg2.7
X-RAY DIFFRACTIONt_planar_d0.0171.7
X-RAY DIFFRACTIONt_plane_restr0.0187

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