1L06

CONTRIBUTIONS OF HYDROGEN BONDS OF THR 157 TO THE THERMODYNAMIC STABILITY OF PHAGE T4 LYSOZYME

• PDB DOI: https://doi.org/10.2210/pdb1L06/pdb

• Classification: HYDROLASE (O-GLYCOSYL)
• Organism(s): Tequatrovirus T4
• Mutation(s): Yes 


• Deposited: 1988-02-05 Released: 1988-04-16 
• Deposition Author(s): Dao-Pin, S., Wilson, K., Alber, T., Matthews, B.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Observed: 0.174 

Literature

Contributions of hydrogen bonds of Thr 157 to the thermodynamic stability of phage T4 lysozyme.

Alber, T., Sun, D.P., Wilson, K., Wozniak, J.A., Cook, S.P., Matthews, B.W.

(1987) Nature 330: 41-46

• PubMed: 3118211 
• DOI: https://doi.org/10.1038/330041a0
• Primary Citation of Related Structures:  
  1L02, 1L03, 1L04, 1L05, 1L06, 1L07, 1L08, 1L09, 1L11, 1L12, 1L13, 1L14, 1L15


• PubMed Abstract: 
  

  Measurements of changes in structure and stability caused by 13 different substitutions for threonine 157 in phage T4 lysozyme show that the most stable lysozyme variants contain hydrogen bonds analogous to those in the wild-type enzyme and that structural adjustments allow the protein to be surprisingly tolerant of amino-acid substitutions.

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Organizational Affiliation: 

Department of Physics, University of Oregon, Eugene 97403.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18.69 kDa 
• Atom Count: 1,429 
• Modelled Residue Count: 164 
• Deposited Residue Count: 164 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
T4 LYSOZYME	A	164	Tequatrovirus T4	Mutation(s): 1  EC: 3.2.1.17
UniProt
Find proteins for P00720 (Enterobacteria phage T4) Explore P00720  Go to UniProtKB:  P00720

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Observed: 0.174 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.2	α = 90
b = 61.2	β = 90
c = 97.4	γ = 120

Software Package:

Software Name	Purpose
TNT	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1988-04-16 
Deposition Author(s): Dao-Pin, S., Wilson, K., Alber, T., Matthews, B.W.

Revision History  

• Version 1.0: 1988-04-16
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2017-11-29
  Changes: Derived calculations, Other
• Version 2.0: 2022-11-23
  Type: Remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Other, Source and taxonomy
• Version 2.1: 2024-05-22
  Changes: Data collection