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- PDB-1i6s: T4 LYSOZYME MUTANT C54T/C97A/N101A -

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Basic information

Entry
Database: PDB / ID: 1i6s
TitleT4 LYSOZYME MUTANT C54T/C97A/N101A
ComponentsLYSOZYME
KeywordsHYDROLASE / HYDROLASE (O-GLYCOSYL) / T4 LYSOZYME / HYDRATED CAVITIES
Function / homology
Function and homology information


viral release from host cell by cytolysis / peptidoglycan catabolic process / cell wall macromolecule catabolic process / lysozyme / lysozyme activity / host cell cytoplasm / defense response to bacterium
Similarity search - Function
Lysozyme - #40 / Endolysin T4 type / T4-type lysozyme / : / Glycoside hydrolase, family 24 / Phage lysozyme / Lysozyme domain superfamily / Lysozyme / Lysozyme-like domain superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
2-HYDROXYETHYL DISULFIDE / Endolysin
Similarity search - Component
Biological speciesEnterobacteria phage T4 (virus)
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 1.9 Å
AuthorsKovall, R.A. / Baldwin, E.P. / Matthews, B.W.
Citation
Journal: Protein Sci. / Year: 2001
Title: Structural and thermodynamic analysis of the binding of solvent at internal sites in T4 lysozyme.
Authors: Xu, J. / Baase, W.A. / Quillin, M.L. / Baldwin, E.P. / Matthews, B.W.
#1: Journal: J.Mol.Biol. / Year: 1987
Title: Structure of Bacteriophage T4 Lysozyme Refined at 1.7 A Resolution
Authors: Weaver, L.H. / Matthews, B.W.
History
DepositionMar 4, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 9, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 27, 2021Group: Database references / Derived calculations / Category: database_2 / 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 / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Aug 9, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: LYSOZYME
hetero molecules


Theoretical massNumber of molelcules
Total (without water)18,8104
Polymers18,5851
Non-polymers2253
Water2,054114
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)61.130, 61.130, 96.170
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number154
Space group name H-MP3221

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Components

#1: Protein LYSOZYME


Mass: 18585.338 Da / Num. of mol.: 1 / Mutation: C54T,C97A,N101A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Enterobacteria phage T4 (virus) / Genus: T4-like viruses / Species: Enterobacteria phage T4 sensu lato / Gene: GENE E / Plasmid: PHS1403 / Production host: Escherichia coli (E. coli) / References: UniProt: P00720, lysozyme
#2: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#3: Chemical ChemComp-HED / 2-HYDROXYETHYL DISULFIDE


Mass: 154.251 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C4H10O2S2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 114 / 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: 2.8 Å3/Da / Density % sol: 56 %
Crystal grow
*PLUS
Method: vapor diffusion / Details: Eriksson, A.E., (1993) J.Mol.Biol., 229, 747. / PH range low: 7.1 / PH range high: 6.3
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
120 mg/mlprotein1drop
20.25 M1reservoirNaCl
32.0 Mphosphate1reservoir
4beta-mercaptoethanol1reservoir

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418
DetectorType: UCSD MARK III / Detector: AREA DETECTOR
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.9→30 Å / Num. obs: 19140 / % possible obs: 93 % / Biso Wilson estimate: 20.8 Å2 / Rmerge(I) obs: 0.04
Reflection
*PLUS
Highest resolution: 1.9 Å / Lowest resolution: 30 Å

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Processing

Software
NameClassification
TNTrefinement
SDMSdata reduction
SDMSdata scaling
TNTphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: 1L63

1l63


Resolution: 1.9→30 Å / Isotropic thermal model: TNT BCORREL / σ(F): 0 / Stereochemistry target values: TNT PROTGEO
Details: The last two C-terminal residues of the sequence, ASN 163 and LEU 164, were missing in the electron density.
RfactorNum. reflection% reflection
Rwork0.174 --
obs-19140 93 %
Solvent computationSolvent model: MOEWS AND KRETSINGER / Bsol: 509.3 Å2 / ksol: 1.06 e/Å3
Refinement stepCycle: LAST / Resolution: 1.9→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1289 0 10 114 1413
Refine LS restraints
Refine-IDTypeDev idealNumberWeight
X-RAY DIFFRACTIONt_bond_d0.01413090.8
X-RAY DIFFRACTIONt_angle_deg2.05117601.3
X-RAY DIFFRACTIONt_dihedral_angle_d15.2968010
X-RAY DIFFRACTIONt_incorr_chiral_ct0
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes0.01332
X-RAY DIFFRACTIONt_gen_planes0.0131895
X-RAY DIFFRACTIONt_it5.33313091
X-RAY DIFFRACTIONt_nbd0.6953010
Software
*PLUS
Name: TNT / Version: 5E / Classification: refinement
Refinement
*PLUS
Rfactor all: 0.174
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev idealWeight
X-RAY DIFFRACTIONt_planar_d0.012
X-RAY DIFFRACTIONt_plane_restr0.0135

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