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@ARTICLE{Kang:1049215,
author = {Kang, Kyongok and Platten, Florian and Ray, Debes},
title = {{E}lectric response of multiarm protein crystals},
journal = {Physical review / E},
volume = {113},
issn = {2470-0045},
address = {Woodbury, NY},
publisher = {APS},
reportid = {FZJ-2025-05295},
pages = {014403},
year = {2026},
abstract = {Electric fields can modify protein-protein interactions and
thereby influence phase behavior. In lysozyme–sodium
thiocyanate solutions, we recently observed shifts in both
the crystallization boundary and theliquid-liquid phase
separation line under a weak applied field, along with a
range of distinct crystal morphologies.Here, we explore how
forming protein crystals respond to variations in field
frequency and amplitude, focusingon the morphologies of
complex, multiarm structures. At constant protein and salt
concentrations, the appliedfield governs both the number and
the angular distribution of crystal arms. These features are
analyzed throughFourier analysis of microscopy images,
revealing cooperative angular ordering among the arms. Based
on theseobservations, we classify three principal multiarm
protein crystal (pX) morphologies: flowerlike pX (dominantat
high field strengths), triconic pX (appearing
nonmonotonically at lower fields), and conic pX (widely
observedunder low-field conditions). Near the
crystallization boundary, field-driven metastable structures
such as tubules,clusters, nematic domains, and fibers also
occur in response to the field. These findings demonstrate
that electricfields effectively steer protein
crystallization pathways and provide insight into the
mechanisms of variousmultiarm crystallization.},
cin = {IBI-4},
ddc = {530},
cid = {I:(DE-Juel1)IBI-4-20200312},
pnm = {5241 - Molecular Information Processing in Cellular Systems
(POF4-524) / DFG project G:(GEPRIS)495795796 - Das
Phasenverhalten von Proteinlösungen in elektrischen Feldern
(495795796)},
pid = {G:(DE-HGF)POF4-5241 / G:(GEPRIS)495795796},
typ = {PUB:(DE-HGF)16},
doi = {10.1103/ql7f-wzpr},
url = {https://juser.fz-juelich.de/record/1049215},
}