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- PDB-1qt8: T26H Mutant of T4 Lysozyme -

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Basic information

Entry
Database: PDB / ID: 1qt8
TitleT26H Mutant of T4 Lysozyme
ComponentsPROTEIN (T4 LYSOZYME)
KeywordsHYDROLASE
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 / Resolution: 1.9 Å
AuthorsKuroki, R. / Weaver, L.H. / Matthews, B.W.
Citation
Journal: Proc.Natl.Acad.Sci.USA / Year: 1999
Title: Structural basis of the conversion of T4 lysozyme into a transglycosidase by reengineering the active site.
Authors: Kuroki, R. / Weaver, L.H. / Matthews, B.W.
#1: Journal: J.Mol.Biol. / Year: 1987
Title: Structure of Bacteriophage T4 Lysozyme Refined at 1.7A Resolution
Authors: Weaver, L.H. / Matthews, B.W.
#2: Journal: Nat.Struct.Biol. / Year: 1995
Title: Structure-based Design of a Lysozyme with Altered Catalytic Activity
Authors: Kuroki, R. / Weaver, L.H. / Matthews, B.W.
History
DepositionJun 30, 1999Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 8, 1999Provider: repository / Type: Initial release
Revision 1.1Oct 24, 2007Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 3, 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 1.4Feb 14, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: PROTEIN (T4 LYSOZYME)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)18,8202
Polymers18,6651
Non-polymers1541
Water2,522140
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)61.451, 61.451, 97.679
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 PROTEIN (T4 LYSOZYME)


Mass: 18665.406 Da / Num. of mol.: 1 / Mutation: T26H, C54T, C97A
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 / Plasmid: M13 PHS1403 / Production host: Escherichia coli (E. coli) / References: UniProt: P00720, lysozyme
#2: Chemical ChemComp-HED / 2-HYDROXYETHYL DISULFIDE


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


Mass: 18.015 Da / Num. of mol.: 140 / 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: 2.85 Å3/Da / Density % sol: 56.87 %
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
22.0 Mphosphate1reservoir
30.25 M1reservoirNaCl
4beta-mercaptoethanol1reservoir

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Data collection

Diffraction sourceSource: ROTATING ANODE
DetectorDetector: IMAGE PLATE
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthRelative weight: 1
ReflectionResolution: 1.5→53 Å / Num. all: 105345 / Num. obs: 22032 / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4.8 % / Rmerge(I) obs: 0.043
Reflection
*PLUS
Num. measured all: 105345 / Rmerge(I) obs: 0.064

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Processing

Software
NameClassification
TNTrefinement
TNTphasing
RefinementResolution: 1.9→20 Å / σ(F): 0 / σ(I): 0 / Stereochemistry target values: TNT
RfactorNum. reflection% reflection
all0.169 18058 -
obs0.169 17129 95 %
Refinement stepCycle: LAST / Resolution: 1.9→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1312 0 8 140 1460
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONt_bond_d0.017
X-RAY DIFFRACTIONt_angle_deg3
X-RAY DIFFRACTIONt_dihedral_angle_d
X-RAY DIFFRACTIONt_incorr_chiral_ct
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_trig_c_planes
X-RAY DIFFRACTIONt_gen_planes
X-RAY DIFFRACTIONt_it
X-RAY DIFFRACTIONt_nbd
Refinement
*PLUS
Highest resolution: 1.9 Å / Rfactor all: 0.169
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONt_angle_deg3
X-RAY DIFFRACTIONt_plane_restr0.014

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