Electro-optical properties characterization of fish type III antifreeze protein

Antifreeze proteins (AFPs) are ice-binding proteins that depress the freezing point of water in a non-colligative manner without a significant modification of the melting point. Found in the blood and tissues of some organisms (such as fish, insects, plants, and soil bacteria), AFPs play an importan...

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Autores principales: Salvay, Andrés Gerardo, Santos, Javier, Howard, Eduardo Ignacio
Formato: Articulo
Lenguaje:Español
Publicado: 2007
Materias:
Física
Antifreeze proteins
AFPIII
Electro-optical behavior
Thermal stability
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/107113
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC2565770&blobtype=pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-107113
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Física
Antifreeze proteins
AFPIII
Electro-optical behavior
Thermal stability
spellingShingle Física
Antifreeze proteins
AFPIII
Electro-optical behavior
Thermal stability
Salvay, Andrés Gerardo
Santos, Javier
Howard, Eduardo Ignacio
Electro-optical properties characterization of fish type III antifreeze protein
topic_facet Física
Antifreeze proteins
AFPIII
Electro-optical behavior
Thermal stability
description Antifreeze proteins (AFPs) are ice-binding proteins that depress the freezing point of water in a non-colligative manner without a significant modification of the melting point. Found in the blood and tissues of some organisms (such as fish, insects, plants, and soil bacteria), AFPs play an important role in subzero temperature survival. Fish Type III AFP is present in members of the subclass Zoarcoidei. AFPIII are small 7-kDa—or 14-kDa tandem—globular proteins. In the present work, we study the behavior of several physical properties, such as the low-frequency dielectric permittivity spectrum, circular dichroism, and electrical conductivity of Fish Type III AFP solutions measured at different concentrations. The combination of the information obtained from these measurements could be explained through the formation of AFP molecular aggregates or, alternatively, by the existence of some other type of interparticle interactions. Thermal stability and electrooptical behavior, when proteins are dissolved in deuterated water, were also investigated.
format Articulo
Articulo
author Salvay, Andrés Gerardo
Santos, Javier
Howard, Eduardo Ignacio
author_facet Salvay, Andrés Gerardo
Santos, Javier
Howard, Eduardo Ignacio
author_sort Salvay, Andrés Gerardo
title Electro-optical properties characterization of fish type III antifreeze protein
title_short Electro-optical properties characterization of fish type III antifreeze protein
title_full Electro-optical properties characterization of fish type III antifreeze protein
title_fullStr Electro-optical properties characterization of fish type III antifreeze protein
title_full_unstemmed Electro-optical properties characterization of fish type III antifreeze protein
title_sort electro-optical properties characterization of fish type iii antifreeze protein
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/107113
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC2565770&blobtype=pdf
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AT santosjavier electroopticalpropertiescharacterizationoffishtypeiiiantifreezeprotein
AT howardeduardoignacio electroopticalpropertiescharacterizationoffishtypeiiiantifreezeprotein
bdutipo_str Repositorios
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