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Hydrodynamic properties of macromolecular complexes. I. Translation
Author(s) -
De La Torre Jose Garcia,
Bloomfield Victor A.
Publication year - 1977
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1977.360160811
Subject(s) - ellipsoid , prolate spheroid , translation (biology) , macromolecule , tensor (intrinsic definition) , chemistry , set (abstract data type) , classical mechanics , statistical physics , physics , geometry , mathematics , computer science , biochemistry , astronomy , messenger rna , gene , programming language
We have developed an improved theory for calculating the translational frictional coefficients of rigid macromolecular complexes composed of unequal spherical subunits. The Yamakawa hydrodynamic interaction tensor, which improves on the Oseen tensor by taking account of the finite sizes of the frictional subunits, has been generalized to accomodate nonidentical subunits. Iterative numerical methods are described for solving the set of simultaneous hydrodynamic interaction equations, thus avoiding preaveraging. The theory is applied to prolate ellipsoids of revolution, to lollipops, and to dumbbells, and comparison is made with earlier, more approximate theories.