Small-angle neutron scattering study of protein crowding in liquid and solid phases: lysozyme in aqueous solution, frozen solution, and carbohydrate powders

The Journal of Physical Chemistry. B
Joseph E CurtisSusan Krueger

Abstract

The structure, interactions, and interprotein configurations of the protein lysozyme were studied in a variety of phases. These properties have been studied under a variety of solution conditions before, during, and after freezing and after freeze-drying in the presence of glucose and trehalose. Contrast variation experiments have also been performed to determine which features of the scattering in the frozen solutions are from the protein and which are from the ice structure. Data from lysozyme at concentrations ranging from 1 to 100 mg/mL in solution and water ice with NaCl concentrations ranging from 0 to 0.4 mol/L are fit to model small-angle neutron scattering (SANS) intensity functions consisting of an ellipsoidal form factor and either a screened-Coulomb or hard-sphere structure factor. Parameters such as protein volume fraction and long dimension are followed as a function of temperature and salt concentration. The SANS results are compared to real space models of concentrated lysozyme solutions at the same volume fractions obtained from Monte Carlo simulations. A cartoon representation of the frozen lysozyme solution in 0 mol/L NaCl is presented based on the SANS and Monte Carlo results, along with those obtained from ...Continue Reading

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Citations

Jul 26, 2013·The European Physical Journal. E, Soft Matter·S GiuffridaL Cordone
Aug 10, 2013·The Journal of Chemical Physics·M C AbramoU Wanderlingh
Oct 15, 2014·Advanced Drug Delivery Reviews·José L TlaxcaRichard L Remmele
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Nov 11, 2019·Journal of Pharmaceutical Sciences·Jean-Rene AuthelinEvgenyi Shalaev
Jan 29, 2021·The Journal of Physical Chemistry. B·Xiaoda YuanEvgenyi Shalaev
Apr 3, 2020·Journal of Pharmaceutical Sciences·Andrea Arsiccio, Roberto Pisano
Feb 1, 2017·Computational and Structural Biotechnology Journal·Maria Monica CastellanosJoseph E Curtis
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Dec 16, 2016·The Journal of Physical Chemistry. B·Maria Monica CastellanosJoseph E Curtis
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