Cooperative binding: a multiple personality

Cooperative binding has been described in many publications and has been related to or defined by several different properties of the binding behavior of the ligand to the target molecule. In addition to the commonly used Hill coefficient, other characteristics such as a sigmoidal shape of the overa...

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Autores principales: Martini, Johannes W. R., Diambra, Luis Aníbal, Habeck, Michael
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/133963
Aporte de:
id I19-R120-10915-133963
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Lattice systems (Ising, dimer, Potts, etc.) and systems on graphs arising in equilibrium statistical mechanics
Classical equilibrium statistical mechanics (general)
Biochemistry, molecular biology
Biophysics
None of the above, but in this section
spellingShingle Biología
Lattice systems (Ising, dimer, Potts, etc.) and systems on graphs arising in equilibrium statistical mechanics
Classical equilibrium statistical mechanics (general)
Biochemistry, molecular biology
Biophysics
None of the above, but in this section
Martini, Johannes W. R.
Diambra, Luis Aníbal
Habeck, Michael
Cooperative binding: a multiple personality
topic_facet Biología
Lattice systems (Ising, dimer, Potts, etc.) and systems on graphs arising in equilibrium statistical mechanics
Classical equilibrium statistical mechanics (general)
Biochemistry, molecular biology
Biophysics
None of the above, but in this section
description Cooperative binding has been described in many publications and has been related to or defined by several different properties of the binding behavior of the ligand to the target molecule. In addition to the commonly used Hill coefficient, other characteristics such as a sigmoidal shape of the overall titration curve in a linear plot, a change of ligand affinity of the other binding sites when a site of the target molecule becomes occupied, or complex roots of the binding polynomial have been used to define or to quantify cooperative binding. In this work, we analyze how the different properties are related in the most general model for binding curves based on the grand canonical partition function and present several examples which highlight differences between the cooperativity characterizing properties which are discussed. Our results mainly show that among the presented definitions there are not two which fully coincide. Moreover, this work poses the question whether it can make sense to distinguish between positive and negative cooperativity based on the macroscopic binding isotherm only. This article shall emphasize that scientists who investigate cooperative effects in biological systems could help avoiding misunderstandings by stating clearly which kind of cooperativity they discuss.
format Articulo
Articulo
author Martini, Johannes W. R.
Diambra, Luis Aníbal
Habeck, Michael
author_facet Martini, Johannes W. R.
Diambra, Luis Aníbal
Habeck, Michael
author_sort Martini, Johannes W. R.
title Cooperative binding: a multiple personality
title_short Cooperative binding: a multiple personality
title_full Cooperative binding: a multiple personality
title_fullStr Cooperative binding: a multiple personality
title_full_unstemmed Cooperative binding: a multiple personality
title_sort cooperative binding: a multiple personality
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/133963
work_keys_str_mv AT martinijohanneswr cooperativebindingamultiplepersonality
AT diambraluisanibal cooperativebindingamultiplepersonality
AT habeckmichael cooperativebindingamultiplepersonality
bdutipo_str Repositorios
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