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Download EndnoteHigh-resolution structure of the temperature-sensitive mutant of phage lysozyme, Arg 96----His.
Weaver, L.H., Gray, T.M., Grutter, M.G., Anderson, D.E., Wozniak, J.A., Dahlquist, F.W., Matthews, B.W.(1989) Biochemistry 28: 3793-3797
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- PubMed Abstract:
- Enhanced Protein Thermostability from Site-Directed Mutations that Decrease the Entropy of Unfolding
Matthews, B.W.,Nicholson, H.,Becktel, W.J.
(1987) Proc.Natl.Acad.Sci.USA 84: 6663 - Crystallographic Data for Lysozyme from Bacteriophage T4
Matthews, B.W.,Dahlquist, F.W.,Maynard, A.Y.
(1973) J.Mol.Biol. 78: 575 - Contributions of Left-Handed Helical Residues to the Structure and Stability of Bacteriophage T4 Lysozyme
Nicholson, H.,Soderlind, E.,Tronrud, D.E.,Matthews, B.W.
(1989) J.Mol.Biol. 210: 181 - The Three Dimensional Structure of the Lysozyme from Bacteriophage T4
Matthews, B.W.,Remington, S.J.
(1974) Proc.Natl.Acad.Sci.USA 71: 4178 - Contributions of Hydrogen Bonds of Thr 157 to the Thermodynamic Stability of Phage T4 Lysozyme
Alber, T.,Dao-Pin, S.,Wilson, K.,Wozniak, J.A.,Cook, S.P.,Matthews, B.W.
(1987) Nature 330: 41 - Structure of Bacteriophage T4 Lysozyme Refined at 1.7 Angstroms Resolution
Weaver, L.H.,Matthews, B.W.
(1987) J.Mol.Biol. 193: 189 - Structural Studies of Mutants of T4 Lysozyme that Alter Hydrophobic Stabilization
Matsumura, M.,Wozniak, J.A.,Dao-Pin, S.,Matthews, B.W.
() TO BE PUBLISHED --: -- - Enhanced Protein Thermostability from Designed Mutations that Interact with Alpha-Helix Dipoles
Nicholson, H.,Becktel, W.J.,Matthews, B.W.
(1988) Nature 336: 651 - Temperature-Sensitive Mutations of Bacteriophage T4 Lysozyme Occur at Sites with Low Mobility and Low Solvent Accessibility in the Folded Protein
Alber, T.,Dao-Pin, S.,Nye, J.A.,Muchmore, D.C.,Matthews, B.W.
(1987) Biochemistry 26: 3754 - Structure of the Lysozyme from Bacteriophage T4, an Electron Density Map at 2.4 Angstroms Resolution
Remington, S.J.,Anderson, W.F.,Owen, J.,Teneyck, L.F.,Grainger, C.T.,Matthews, B.W.
(1978) J.Mol.Biol. 118: 81 - Common Precursor of Lysozymes of Hen Egg-White and Bacteriophage T4
Matthews, B.W.,Gruetter, M.G.,Anderson, W.F.,Remington, S.J.
(1981) Nature 290: 334 - Structural Analysis of the Temperature-Sensitive Mutant of Bacteriophage T4 Lysozyme, Glycine 156 (Right Arrow) Aspartic Acid
Gray, T.M.,Matthews, B.W.
(1987) J.Biol.Chem. 262: 16858 - Structural Studies of Mutants of the Lysozyme of Bacteriophage T4. The Temperature-Sensitive Mutant Protein Thr157 (Right Arrow) Ile
Gruetter, M.G.,Gray, T.M.,Weaver, L.H.,Alber, T.,Wilson, K.,Matthews, B.W.
(1987) J.Mol.Biol. 197: 315 - Crystallographic Determination of the Mode of Binding of Oligosaccharides to T4 Bacteriophage Lysozyme. Implications for the Mechanism of Catalysis
Anderson, W.F.,Gruetter, M.G.,Remington, S.J.,Weaver, L.H.,Matthews, B.W.
(1981) J.Mol.Biol. 147: 523 - Relation between Hen Egg White Lysozyme and Bacteriophage T4 Lysozyme. Evolutionary Implications
Matthews, B.W.,Remington, S.J.,Gruetter, M.G.,Anderson, W.F.
(1981) J.Mol.Biol. 147: 545 - Atomic Coordinates for T4 Phage Lysozyme
Remington, S.J.,Teneyck, L.F.,Matthews, B.W.
(1977) Biochem.Biophys.Res.Commun. 75: 265 - Hydrophobic Stabilization in T4 Lysozyme Determined Directly by Multiple Substitutions of Ile 3
Matsumura, M.,Becktel, W.J.,Matthews, B.W.
(1988) Nature 334: 406 - Replacements of Pro86 in Phage T4 Lysozyme Extend an Alpha-Helix But Do not Alter Protein Stability
Alber, T.,Bell, J.A.,Dao-Pin, S.,Nicholson, H.,Cook, J.A.Wozniak S.,Matthews, B.W.
(1988) Science 239: 631 - Comparison of the Predicted and Observed Secondary Structure of T4 Phage Lysozyme
Matthews, B.W.
(1975) Biochim.Biophys.Acta 405: 442
The structure of the temperature-sensitive mutant lysozyme of bacteriophage T4 in which arginine 96 is replaced by histidine has been determined crystallographically and refined to a residual of 17.6% at 1.9-A resolution. Overall, the three-dimension ...
The structure of the temperature-sensitive mutant lysozyme of bacteriophage T4 in which arginine 96 is replaced by histidine has been determined crystallographically and refined to a residual of 17.6% at 1.9-A resolution. Overall, the three-dimensional structure of the mutant protein is extremely similar to that of wild type. There are local distortions in the mutant structure suggesting that the substituted His 96 residue is under strain. This appears to be one of the major reasons for the decreased thermostability. In wild-type lysozyme the guanidinium of Arg 96 is located at the carboxy terminus of alpha-helix 82-90 and makes a pair of hydrogen bonds to two of the carbonyl groups in the last turn of the helix. The loss of this "helix dipole" interaction also appears to contribute to the destabilization. The pKa* of His 96 in the mutant lysozyme has been determined by nuclear magnetic resonance and found to be 6.8 at 10 degrees C. This relatively normal value of the histidine pKa* suggests that the protonated and unprotonated forms of the imidazole ring are perturbed equally by the protein environment or, what is equivalent, the mutant lysozyme is equally stable with either histidine species.
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Organizational Affiliation:
Institute of Molecular Biology, University of Oregon, Eugene 97403.
