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Accumulation of Antifreeze Proteins on Ice Is Determined by Adsorption

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.3c02705· OSTI ID:2001519
 [1];  [2];  [3];  [2];  [4]
  1. University of Pennsylvania, Philadelphia, PA (United States); University of Pennsylvania
  2. Yeshiva University, New York, NY (United States)
  3. Hebrew University of Jerusalem, Rehovot (Israel)
  4. University of Pennsylvania, Philadelphia, PA (United States)
Antifreeze proteins (AFPs) enable the survival of organisms in freezing environments by binding to ice crystals and suppressing their growth. The rate at which AFPs accumulate on ice is determined by an interplay between their diffusion from the aqueous solution and their adsorption to the ice crystal. To interrogate the relative importance of these two processes, we combined fluorescence experiments with reaction–diffusion modeling. We found that as AFPs accumulate on ice, their concentration in the aqueous solution does not develop a gradient but remains equal to its bulk concentration throughout our experiments. Furthermore, these findings led us to conclude that AFP accumulation on ice crystals, which are smaller than 100 μm in radius, is not limited by the diffusion of AFPs, but by the kinetics of AFP adsorption.
Research Organization:
University of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Organization:
Donors of the American Chemical Society Petroleum Research Fund; National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0021241
OSTI ID:
2001519
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 32 Vol. 145; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (26)

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The basis for hyperactivity of antifreeze proteins journal October 2006
Annealing condition influences thermal hysteresis of fungal type ice-binding proteins journal February 2014
How do Antarctic notothenioid fishes cope with internal ice? A novel function for antifreeze glycoproteins journal September 2010
Diffusion Attachment Model for Long Helical Antifreeze Proteins to Ice journal December 2021
Ice Growth Acceleration by Antifreeze Proteins Leads to Higher Thermal Hysteresis Activity journal November 2020
Diffusion Influenced Adsorption Kinetics journal May 2015
When Are Antifreeze Proteins in Solution Essential for Ice Growth Inhibition? journal May 2015
Antifreeze Glycoprotein Activity Correlates with Long-Range Protein−Water Dynamics journal August 2010
Antifreeze Glycoproteins Bind Irreversibly to Ice journal July 2018
Synergy between Antifreeze Proteins Is Driven by Complementary Ice-Binding journal November 2019
Ice growth in supercooled solutions of a biological “antifreeze”, AFGP 1–5: an explanation in terms of adsorption rate for the concentration dependence of the freezing point journal January 2009
Experimental correlation between thermal hysteresis activity and the distance between antifreeze proteins on an ice surface journal January 2015
Oriented attachment kinetics for rod-like particles at a flat surface: Buffon’s needle at the nanoscale journal December 2022
Microfluidic experiments reveal that antifreeze proteins bound to ice crystals suffice to prevent their growth journal January 2013
Antifreeze protein-induced superheating of ice inside Antarctic notothenioid fishes inhibits melting during summer warming journal September 2014
Viscosity of deeply supercooled water and its coupling to molecular diffusion journal September 2015
Preordering of water is not needed for ice recognition by hyperactive antifreeze proteins journal July 2018
Nanoscopy of single antifreeze proteins reveals that reversible ice binding is sufficient for ice recrystallization inhibition but not thermal hysteresis journal January 2023
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New insights into ice growth and melting modifications by antifreeze proteins journal July 2012
Ice-binding proteins that accumulate on different ice crystal planes produce distinct thermal hysteresis dynamics journal September 2014
Effect of annealing time of an ice crystal on the activity of type III antifreeze protein journal November 2007
Ice-Binding Proteins and Their Function journal June 2016
Fluorescence Microscopy Evidence for Quasi-Permanent Attachment of Antifreeze Proteins to Ice Surfaces journal May 2007

Figures / Tables (3)


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