Results 301 to 310 of about 1,811,886 (362)
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Journal of Biomolecular Structure and Dynamics, 2015
For the past 50 years, the Ramachandran map has been used effectively to study the protein structure and folding. However, though extensive analysis has been done on dihedral angle preferences of residues in globular proteins, related studies and reports
Konda Mani Saravanan, S. Krishnaswamy
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For the past 50 years, the Ramachandran map has been used effectively to study the protein structure and folding. However, though extensive analysis has been done on dihedral angle preferences of residues in globular proteins, related studies and reports
Konda Mani Saravanan, S. Krishnaswamy
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On the standard deviation of a dihedral angle
Acta Crystallographica Section A, 1974Expressions for derivatives of a dihedral angle with respect to positional parameters of the atoms involved are presented and their use with the propagation-of-error formula, in evaluating the standard deviation of a dihedral angle, is indicated. The expressions derived are valid in oblique and orthogonal frames of reference.
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Simulation studies of the dihedral angle in water
The Journal of Physical Chemistry, 1984Distribution g(δ) de l'angle diedre δ pour des tetranieres et des dimeres, a liaison hydrogene, dans l'eau liquide, pour les modeles MCY et ...
Robin J. Speedy, Mihaly Mezei
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The dihedral angle of 2‐(trifluoromethyl)phenothiazine
Journal of Heterocyclic Chemistry, 1976AbstractThe structure of 2‐(trifluoromethyl)phenothiazine, C13H8NSF3, was determined by single crystal X‐ray diffraction. The molecule crystallizes in space group P212121, with a = 7.766(2), b = 5.957(1), and c = 23.499(5)Å. The final R value is 0.073.
D. W. Phelps, A. W. Cordes
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Dihedral Angles of the Cycloheptane Ring
Australian Journal of Chemistry, 1988A method is described for calculating sets of dihedral angles in a seven- membered ring with equal tetrahedral bond angles and equal bond lengths. Representative values are given for the separate chair and boat manifolds of solutions.
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On teaching dihedral angle and steradian
The Mathematics Teacher, 1958An extension of the method of defining a plane angle analytically to the definitions of a dihedral angle and the steradian.
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On a certain nonstationary problem in a dihedral angle. II
Journal of Mathematical Sciences, 1994An existence theorem is obtained for the initial-boundary value problem, considered in the previous paper, in the case of a positive parameter h in the boundary condition.
V. A. Solonnikov, E. V. Frolova
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Protein secondary structure prediction with dihedral angles
Proteins: Structure, Function, and Bioinformatics, 2005AbstractWe present DESTRUCT, a new method of protein secondary structure prediction, which achieves a three‐state accuracy (Q3) of 79.4% in a cross‐validated trial on a nonredundant set of 513 proteins. An iterative set of cascade–correlation neural networks is used to predict both secondary structure and ψ dihedral angles, with predicted values ...
Jonathan D. Hirst, Matthew J. Wood
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Determination of Mean and Standard Deviation of Dihedral Angles
Biochemical and Biophysical Research Communications, 1999Backbone torsional angles are a characteristic and useful parameter for the description and characterisation of protein structures determined by x-ray crystallography or NMR spectroscopy. For the comparison of an ensemble of three-dimensional structures the calculation of the statistical parameters mean and standard deviation would be very useful ...
Klaus-Peter Neidig +4 more
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Accurate measurement of the dihedral angle of a corner cube
Applied Optics, 1992The alignment of a corner cube affects the measurement of its dihedral angle. For 5 deg of tilt, the error is up to 7%, depending on the orientation of the tilt. A vector model is devised to derive formulas that take misalignment into account for both solid and hollow corner cubes. When the wave-front tilt caused by the dihedral angle error is not much
Kenneth L. Smith, Chiayuo Ai
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