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- PDB-1cx6: T4 LYSOZYME SUBSTITUTED WITH SELENOMETHIONINE -

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Basic information

Entry
Database: PDB / ID: 1cx6
TitleT4 LYSOZYME SUBSTITUTED WITH SELENOMETHIONINE
ComponentsLYSOZYME
KeywordsHYDROLASE / HYDROLASE (O-GLYCOSYL) / T4 LYSOZYME / SELENOMETHIONINE CORE MUTANT / PROTEIN ENGINEERING / PROTEIN FOLDING
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: 2.01 Å
AuthorsGassner, N.C. / Baase, W.A. / Matthews, B.W.
Citation
Journal: J.Mol.Biol. / Year: 1999
Title: Substitution with selenomethionine can enhance the stability of methionine-rich proteins.
Authors: Gassner, N.C. / Baase, W.A. / Hausrath, A.C. / Matthews, B.W.
#1: Journal: Proc.Natl.Acad.Sci.USA / Year: 1996
Title: A Test of the "jigsaw-puzzle" Model for Protein Folding by Multiple Methionine Substitutions within the Core of T4 Lysozyme
Authors: Gassner, N.C. / Baase, W.A. / Matthews, B.W.
#2: 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
DepositionAug 28, 1999Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 15, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jan 31, 2018Group: Experimental preparation / Category: exptl_crystal_grow / Item: _exptl_crystal_grow.temp
Revision 1.4Nov 3, 2021Group: Database references / Derived calculations
Category: database_2 / struct_conn ...database_2 / struct_conn / 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_conn.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.5Oct 30, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / 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: LYSOZYME
hetero molecules


Theoretical massNumber of molelcules
Total (without water)19,5094
Polymers19,2831
Non-polymers2253
Water1,910106
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)61.400, 61.400, 96.700
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: 19283.355 Da / Num. of mol.: 1
Mutation: C54T, L84(MSE), L91(MSE), C97A, L99(MSE), L118(MSE), L121(MSE), L133(MSE), F153(MSE)
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.: 106 / Source method: isolated from a natural source / Formula: H2O
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: 2.73 Å3/Da / Density % sol: 54.92 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / Details: NA2PO4, NACL, VAPOR DIFFUSION, HANGING DROP
Crystal grow
*PLUS
pH: 6.7 / Method: batch method
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
120 mg/mlprotein11
20.55 M11NaCl
314 mMmercaptoethanol11
41 mM11MgCl2
50.01 Msodium phosphate11
62.2 M11NaH2PO4
71.8 M11K2HPO4

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418
DetectorDetector: AREA DETECTOR
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.84→30 Å / Num. all: 16676 / Num. obs: 16676 / % possible obs: 88 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.3 % / Biso Wilson estimate: 27.9 Å2 / Rmerge(I) obs: 0.06 / Net I/σ(I): 10.8
Reflection shellResolution: 1.84→1.94 Å / Redundancy: 1.7 % / Rmerge(I) obs: 0.21 / % possible all: 49
Reflection shell
*PLUS
% possible obs: 49 %

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Processing

Software
NameClassification
TNTrefinement
AUTOSTRATdata reduction
TNTphasing
RefinementResolution: 2.01→30 Å / σ(F): 0 / σ(I): 0 / Stereochemistry target values: TNT PROTGEO
RfactorNum. reflection% reflection
Rwork0.158 --
all0.158 14258 -
obs0.158 14258 94 %
Refinement stepCycle: LAST / Resolution: 2.01→30 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1289 0 10 106 1405
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONt_bond_d0.019
X-RAY DIFFRACTIONt_angle_deg2.6
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

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