[NMR paper] Polyproline is a minimal antifreeze protein mimetic and enhances the cryopreservation of cell monolayers
Polyproline is a minimal antifreeze protein mimetic and enhances the cryopreservation of cell monolayers
Tissue engineering, gene therapy, drug screening and emerging regenerative medicine therapies are fundamentally reliant on high-quality adherent cell culture, but current methods to cryopreserve cells in this format can give low cell yields and requires large volumes of solvent 'antifreezes'. Herein we report polyproline is a minimum (bio)synthetic mimic of antifreeze proteins, which is accessible by solution, solid phase and recombinant methods. We demonstrate that polyproline has...
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10-18-2017 05:07 PM
Comparison of backbone dynamics of the type III antifreeze protein and antifreeze-like domain of human sialic acid synthase
Comparison of backbone dynamics of the type III antifreeze protein and antifreeze-like domain of human sialic acid synthase
Abstract
Antifreeze proteins (AFPs) are found in a variety of cold-adapted (psychrophilic) organisms to promote survival at subzero temperatures by binding to ice crystals and decreasing the freezing temperature of body fluids. The type III AFPs are small globular proteins that consist of one α-helix, three 310-helices, and two β-strands. Sialic acids play important roles in a variety of biological functions, such as...
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01-09-2015 03:58 PM
[NMR paper] Effects of a type I antifreeze protein (AFP) on the melting of frozen AFP and AFP+solute aqueous solutions studied by NMR microimaging experiment.
Effects of a type I antifreeze protein (AFP) on the melting of frozen AFP and AFP+solute aqueous solutions studied by NMR microimaging experiment.
Related Articles Effects of a type I antifreeze protein (AFP) on the melting of frozen AFP and AFP+solute aqueous solutions studied by NMR microimaging experiment.
J Biol Phys. 2013 Jan;39(1):131-44
Authors: Ba Y, Mao Y, Galdino L, Günsen Z
Abstract
The effects of a type I AFP on the bulk melting of frozen AFP solutions and frozen AFP+solute solutions were studied through an NMR...
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07-19-2013 09:20 PM
Crystallography reveals secrets of nature's antifreeze - physicsworld.com
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Crystallography reveals secrets of nature's antifreeze
physicsworld.com
Ansgar Siemer of Columbia University in New York City, who has used nuclear magnetic resonance (NMR) to identify the ice-binding sites on antifreeze proteins, believes this detailed picture of the protein's structure will be useful to researchers. ...
Crystallography reveals secrets of nature's antifreeze - physicsworld.com
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04-13-2011 01:15 AM
Threonine side chain conformational population distribution of a type I antifreeze protein on interacting with ice surface studied via (13)C-(15)N dynamic REDOR NMR.
Threonine side chain conformational population distribution of a type I antifreeze protein on interacting with ice surface studied via (13)C-(15)N dynamic REDOR NMR.
Threonine side chain conformational population distribution of a type I antifreeze protein on interacting with ice surface studied via (13)C-(15)N dynamic REDOR NMR.
Solid State Nucl Magn Reson. 2011 Mar 23;
Authors: Mao Y, Jeong M, Wang T, Ba Y
Antifreeze proteins (AFPs) provide survival mechanism for species living in subzero environments by lowering the freezing points of their...
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04-08-2011 10:00 AM
[NMR paper] Hydrogen bonding on the ice-binding face of a beta-helical antifreeze protein indicat
Hydrogen bonding on the ice-binding face of a beta-helical antifreeze protein indicated by amide proton NMR chemical shifts.
Related Articles Hydrogen bonding on the ice-binding face of a beta-helical antifreeze protein indicated by amide proton NMR chemical shifts.
Biochemistry. 2004 Oct 19;43(41):13012-7
Authors: Daley ME, Graether SP, Sykes BD
The dependence of amide proton chemical shifts on temperature is used as an indication of the hydrogen bonding properties in a protein. The amide proton temperature coefficients of the beta-helical...