Results 261 to 270 of about 3,978,643 (305)

Molecular Size and Conformation of Immunoglobulins

1970
Publisher Summary This chapter reviews studies on the higher levels of organization in immunoglobulin molecules such as their size and shape as well as the more intimate aspects of their internal folding. One of the most exciting problems in molecular biology is the elucidation of the relationship between the biological properties of immunoglobulins ...
K J, Dorrington, C, Tanford
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Molecular conformation of cyclenes

Journal of Molecular Structure, 1979
Abstract The strain energy of the most probable conformers of 1,3,6-cyclononatriene and 1,3,6-cyclodecatriene, which are asymmetrical compounds, has been calculated as a function of various geometrical parameters by means of the semiempirical Hendrickson's treatment, partially modified.
Giuseppe Buemi, Attanasio Nicolosi, Felice Zuccarello, Domenico Grasso   +3 more
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Molecular conformations of methotrexate

Journal of Molecular Structure: THEOCHEM, 1989
Abstract The molecular conformations of methotrexate were studied in detail by force field techniques.
Camillo Tosi, Roberto Fusco, Luciano Caccianotti   +2 more
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Molecular Conformation of Benzylideneanilines

Helvetica Chimica Acta, 1971
AbstractThe non‐planar conformations of benzylideneanilines and the almost planar conformations of stilbene and azobenzene are consistently reproduced by a simple model, which takes into account the dependence of π‐electron energy and non‐bonded interactions on molecular conformation. Other aspects of the molecular geometry of benzylideneanilines.(bond
H. B. Bürgi, J. D. Dunitz
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Conformational Molecular Rectifiers

Nano Letters, 2004
Unimolecular rectification based on voltage-controlled intramolecular stereochemical modification is suggested and computationally investigated. In sharp contrast to present molecular rectifiers, these conformational molecular rectifiers (CMRs) differ in principle from silicon structures, deriving their large, strongly temperature-dependent ...
Alessandro Troisi, Mark A. Ratner
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On Updating Torsion Angles of Molecular Conformations

Journal of Chemical Information and Modeling, 2005
A conformation of a molecule is defined by the relative positions of atoms and by the chirality of asymmetric atoms in the molecule. The three main representations for conformations of molecules are Cartesian coordinates, a distance geometry descriptor (which consists of a distance matrix and the signs of the volumes of quadruples of atoms), and ...
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Molecular Modeling of Conformational Properties of Oligodepsipeptides

Biomacromolecules, 2007
A depsipeptide is a chemical structure consisting of both ester and amide bonds. Quantum mechanics calculations have been performed to investigate the conformational properties of a depsidipeptide in the gas and solution phases. Similar to an alanine dipeptide, the depsidipeptide exhibits a strong preference for the polyproline II (PPII) helical ...
Jiajing, Zhang, Michael, King, Laura, Suggs, Pengyu, Ren   +3 more
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Conformational analysis of levanbiose by molecular mechanics

Carbohydrate Research, 1992
A relaxed conformational energy map for levanbiose, O-beta-D-fructofuranosyl-(2----6)-beta-D-fructofuranoside, was computed with the molecular mechanics program MM2(87). All torsion angles of the three linkage bonds were driven by 30 degrees increments while two primary alcohol groups were held at three staggered forms.
J, Liu, A L, Waterhouse
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Immunochemical determination of the molecular conformation of nucleotides

Immunochemistry, 1972
Abstract Rabbit gamma globulin anti-adenosine monophosphate-egg albumin (AMP-EA) was used to study the molecular conformation of nucleotides such as adenosine triphosphate (ATP) or adenosine diphosphate (ADP). The study was done uisng AMP, ADP, and ATP, under different conditions, to inhibit the precipitin reaction between AMP-human serum albumin ...
S, Estrada-Parra, E, García-Ortigoza
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Sialyldisaccharide conformations: a molecular dynamics perspective

Journal of Computer-Aided Molecular Design, 2012
Sialyldisaccharides are significant terminal components of glycoconjugates and their negative charge and conformation are extensively utilized in molecular recognition processes. The conformation and flexibility of four biologically important sialyldisaccharides [Neu5Acα(2-3)Gal, Neu5Acα(2-6)Gal, Neu5Acα(2-8)Neu5Ac and Neu5Acα(2-9)Neu5Ac] are studied ...
Jeyasigamani F. A. Selvin, Thanu R. K. Priyadarzini, Kasinadar Veluraja   +2 more
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