Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein

A laboratory exercise on the interaction between the herbicide pendimethalin (PM) and goat serum albumin (GSA), a carrier protein present in mammalian blood circulation, is described. Fluorescence spectroscopy was used to study the binding reaction between PM and GSA. Titration of a constant amount...

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Main Authors: Roslan, Amira Adlin, Tayyab, Saad
Format: Article
Published: Wiley 2019
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author Roslan, Amira Adlin
Tayyab, Saad
author_facet Roslan, Amira Adlin
Tayyab, Saad
author_sort Roslan, Amira Adlin
collection UM
description A laboratory exercise on the interaction between the herbicide pendimethalin (PM) and goat serum albumin (GSA), a carrier protein present in mammalian blood circulation, is described. Fluorescence spectroscopy was used to study the binding reaction between PM and GSA. Titration of a constant amount of the protein (GSA) with increasing ligand (PM) concentrations produced a consecutive decrease in the protein's fluorescence. Treatment of the fluorescence quenching data according to the Stern–Volmer equation yielded the values of the Stern–Volmer constant (K sv ) and bimolecular quenching rate constant (k q ), whereas values of the binding constant (K a ) and number of binding sites (n) were obtained from the double logarithmic plot. This experiment provides an exciting opportunity for undergraduate students to independently perform ligand binding studies with a protein, in addition to providing the means for the determination of their binding parameters. © 2019 International Union of Biochemistry and Molecular Biology, 47(2): 156–160, 2019. © 2019 International Union of Biochemistry and Molecular Biology
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spelling um.eprints-236342020-02-03T02:07:05Z http://eprints.um.edu.my/23634/ Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein Roslan, Amira Adlin Tayyab, Saad Q Science (General) QD Chemistry QH Natural history QR Microbiology A laboratory exercise on the interaction between the herbicide pendimethalin (PM) and goat serum albumin (GSA), a carrier protein present in mammalian blood circulation, is described. Fluorescence spectroscopy was used to study the binding reaction between PM and GSA. Titration of a constant amount of the protein (GSA) with increasing ligand (PM) concentrations produced a consecutive decrease in the protein's fluorescence. Treatment of the fluorescence quenching data according to the Stern–Volmer equation yielded the values of the Stern–Volmer constant (K sv ) and bimolecular quenching rate constant (k q ), whereas values of the binding constant (K a ) and number of binding sites (n) were obtained from the double logarithmic plot. This experiment provides an exciting opportunity for undergraduate students to independently perform ligand binding studies with a protein, in addition to providing the means for the determination of their binding parameters. © 2019 International Union of Biochemistry and Molecular Biology, 47(2): 156–160, 2019. © 2019 International Union of Biochemistry and Molecular Biology Wiley 2019 Article PeerReviewed Roslan, Amira Adlin and Tayyab, Saad (2019) Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein. Biochemistry and Molecular Biology Education, 47 (2). pp. 156-160. ISSN 1470-8175, DOI https://doi.org/10.1002/bmb.21207 <https://doi.org/10.1002/bmb.21207>. https://doi.org/10.1002/bmb.21207 doi:10.1002/bmb.21207
spellingShingle Q Science (General)
QD Chemistry
QH Natural history
QR Microbiology
Roslan, Amira Adlin
Tayyab, Saad
Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein
title Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein
title_full Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein
title_fullStr Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein
title_full_unstemmed Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein
title_short Exploring ligand-protein interaction: A laboratory exercise on herbicide binding to plasma transport protein
title_sort exploring ligand protein interaction a laboratory exercise on herbicide binding to plasma transport protein
topic Q Science (General)
QD Chemistry
QH Natural history
QR Microbiology
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AT tayyabsaad exploringligandproteininteractionalaboratoryexerciseonherbicidebindingtoplasmatransportprotein