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Begum S, Parvej H, Dalui R, Paul S, Maity S, Sepay N, Afzal M, Chandra Halder U. Structural modulation of insulin by hydrophobic and hydrophilic molecules. RSC Adv 2023; 13:34097-34106. [PMID: 38019994 PMCID: PMC10662218 DOI: 10.1039/d3ra06647a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/13/2023] [Indexed: 12/01/2023] Open
Abstract
In the bloodstream, insulin interacts with various kinds of molecules, which can alter its structure and modulate its function. In this work, we have synthesized two molecules having extremely hydrophilic and hydrophobic side chains. The effects of hydrophilic and hydrophobic molecules on the binding with insulin have been investigated through a multi-spectroscopic approach. We found that hydrophilic molecules have a slightly higher binding affinity towards insulin. Insulin can bind with the hydrophilic molecules as it binds glucose. The high insulin binding affinity of a hydrophobic molecule indicates its dual nature. The hydrophobic molecule binds at the hydrophobic pocket of the insulin surface, where hydrophilic molecules interact at the polar surface of the insulin. Such binding with the hydrophobic molecule perturbs strongly the secondary structure of the insulin much more in comparison to hydrophilic molecules. Therefore, the stability of insulin decreases in the presence of hydrophobic molecules.
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Affiliation(s)
- Shahnaz Begum
- Department of Chemistry, Jadavpur University Kolkata-700032 India
| | - Hasan Parvej
- Department of Chemistry, Jadavpur University Kolkata-700032 India
| | - Ramkrishna Dalui
- Department of Chemistry, Jadavpur University Kolkata-700032 India
| | - Swarnali Paul
- Department of Chemistry, Jadavpur University Kolkata-700032 India
| | - Sanhita Maity
- Department of Chemistry, Jadavpur University Kolkata-700032 India
| | - Nayim Sepay
- Department of Chemistry, Lady Brabourne College Kolkata-700017 India
| | - Mohd Afzal
- Department of Chemistry, College of Science, King Saud University Riyadh 11451 Saudi Arabia
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2
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Parvej H, Begum S, Dalui R, Paul S, Mandal B, Sardar S, Sepay N, Maiti G, Chandra Halder U. Correction: Coumarin derivatives inhibit the aggregation of β-lactoglobulin. RSC Adv 2022; 12:19054. [PMID: 35865613 PMCID: PMC9240953 DOI: 10.1039/d2ra90064e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 06/14/2022] [Indexed: 11/30/2022] Open
Abstract
Correction for ‘Coumarin derivatives inhibit the aggregation of β-lactoglobulin’ by Hasan Parvej et al., RSC Adv., 2022, 12, 17020–17028, https://doi.org/10.1039/D2RA01029A.
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Affiliation(s)
- Hasan Parvej
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Shahnaz Begum
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Ramkrishna Dalui
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Swarnali Paul
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Barun Mandal
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Subrata Sardar
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Nayim Sepay
- Department of Chemistry, Lady Brabourne College Kolkata 700017 India
| | - Gourhari Maiti
- Department of Chemistry, Jadavpur University Kolkata 700032 India
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3
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Parvej H, Begum S, Dalui R, Paul S, Mondal B, Sardar S, Sepay N, Maiti G, Halder UC. Coumarin derivatives inhibit the aggregation of β-lactoglobulin. RSC Adv 2022; 12:17020-17028. [PMID: 35755586 PMCID: PMC9174738 DOI: 10.1039/d2ra01029a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/15/2022] [Indexed: 11/21/2022] Open
Abstract
The binding of a small molecule to a protein through non-covalent interactions mainly depends on its size and electronic environment. Such binding can change the stability of the three dimensional protein structure which sometimes may destabilize it to accelerate or to inhibit protein aggregation. Coumarin is a widely used fluorescent dye with several biological applications. Different substituents (electron-donating and electron-withdrawing) at different positions of the coumarin moiety can influence its molecular volume, physical and chemical properties. Here we investigate the effect of such substituents of coumarin on the aggregation of a model protein, beta-lactoglobulin (β-lg) through a multi spectroscopic approach. It was observed that coumarin methyl ester with an 8-hydroxyl group can inhibit the β-lg aggregation. This compound can bind the hydrophobic site of beta-lactoglobulin and stabilize a particular protein conformation through the formation of hydrogen bond and hydrophobic interactions. Thus a properly designed compound can inhibit protein–protein interactions through protein–small molecule interactions. Other coumarinoid compounds also are effective in the prevention of thermal aggregation of β-lg. Aggregation of β-lactoglobulin (β-lg) was inhibited through the stabilization of the native structure by various non-covalent interactions of coumarin derivatives. The 8-hydroxy compound was most effective against the self-assembly of β-lg.![]()
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Affiliation(s)
- Hasan Parvej
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Shahnaz Begum
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Ramkrishna Dalui
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Swarnali Paul
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Barun Mondal
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Subrata Sardar
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
| | - Nayim Sepay
- Department of Chemistry, Lady Brabourne College, Kolkata 700017, India
| | - Gourhari Maiti
- Department of Chemistry, Jadavpur University, Kolkata 700 032, India
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Maity S, Sepay N, Pal S, Sardar S, Parvej H, Pal S, Chakraborty J, Pradhan A, Halder UC. Modulation of amyloid fibrillation of bovine β-lactoglobulin by selective methionine oxidation. RSC Adv 2021; 11:11192-11203. [PMID: 35423661 PMCID: PMC8695858 DOI: 10.1039/d0ra09060c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/05/2021] [Indexed: 12/13/2022] Open
Abstract
Deposition of oxidation-modified proteins during normal aging and oxidative stress are directly associated with systemic amyloidoses. Methionine (Met) is believed to be one of the most readily oxidisable amino acid residues of protein. Bovine beta-lactoglobulin (β-lg), a model globular whey protein, has been presented as a subsequent paradigm for studies on protein aggregation and amyloid formation. Herein, we investigated the effect of t-butyl hydroperoxide (tBHP)-induced oxidation on structure, compactness and fibrillation propensity of β-lg at physiological pH. Notably, whey protein modification, specifically Met residues, plays an important role in the dairy industry during milk processing and lowering nutritional value and ultimately affecting their technological properties. Several bio-physical studies revealed enhanced structural flexibility and aggregation propensity of oxidised β-lg in a temperature dependent manner. A molecular docking study is used to predict possible interactions with tBHP and infers selective oxidation of methionine residues at 7, 24 and 107 positions. From our studies, it can be corroborated that specific orientations of Met residues directs the formation of a partially unfolded state susceptible to fibrillation with possible different cytotoxic effects. Our studies have greater implications in deciphering the underlying mechanism of different whey proteins encountering oxidative stress. Our findings are also important to elucidate the understanding of oxidation induced amyloid fibrillation of protein which may constitute a new route to pave the way for a modulatory role of oxidatively stressed proteins in neurological disorders.
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Affiliation(s)
- Sanhita Maity
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Nayim Sepay
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Sampa Pal
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Subrata Sardar
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Hasan Parvej
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Swarnali Pal
- Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Jishnu Chakraborty
- Department of Chemistry, Camellia Institute of Engineering and Technology Budbud Burdwan WB India
| | - Anirban Pradhan
- Department of Chemistry, Ramakrishna Mission Residential College (Autonomous), Vivekananda Centre for Research Narendrapur Kolkata-700103 India
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Pal S, Maity S, Sardar S, Begum S, Dalui R, Parvej H, Bera K, Pradhan A, Sepay N, Paul S, Halder UC. Antioxidant ferulic acid prevents the aggregation of bovine β-lactoglobulin in vitro. J CHEM SCI 2020. [DOI: 10.1007/s12039-020-01796-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Sardar S, Anas M, Maity S, Pal S, Parvej H, Begum S, Dalui R, Sepay N, Halder UC. Silver nanoparticle modulates the aggregation of beta-lactoglobulin and induces to form rod-like aggregates. Int J Biol Macromol 2018; 125:596-604. [PMID: 30528992 DOI: 10.1016/j.ijbiomac.2018.12.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/23/2018] [Accepted: 12/02/2018] [Indexed: 02/07/2023]
Abstract
Silver nanoparticles (SNPs) have been increasingly used in medicines and biomaterials as a drug carriers and diagnostic or therapeutic material due to their smaller size, large surface area and cell penetration ability. Here we report the preparation of SNPs of diameter 10 ± 3 nm by using silver nitrate and sodium borohydride and the interaction of synthesized SNPs with our model protein β-lactoglobulin (β-lg) in 10 mM phosphate buffer at pH 7.5 after thermal exposure at 75 °C. Heat exposed β-lg forms amyloidal fibrillar aggregates whereas this protein aggregates adopt rod-like shape instead of fibrillar structure in presence of SNP under the same conditions. Size of the synthesized SNPs is confirmed by UV-Visible spectroscopy, SEM and TEM. Interactions and subsequent formation of molecular assembly of heat stressed β-lg with SNP were investigated using Th-T assay and ANS binding assay, DLS, RLS, CD, FT-IR, SEM, TEM. Docking study parallely also support the experimental findings.
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Affiliation(s)
- Subrata Sardar
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Md Anas
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sanhita Maity
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Sampa Pal
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Hasan Parvej
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Shahnaz Begum
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Ramkrishna Dalui
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Nayim Sepay
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Umesh Chandra Halder
- Organic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India.
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Maity S, Pal S, Sardar S, Sepay N, Parvej H, Begum S, Dalui R, Das N, Pradhan A, Halder UC. Inhibition of amyloid fibril formation of β-lactoglobulin by natural and synthetic curcuminoids. NEW J CHEM 2018. [DOI: 10.1039/c8nj03194k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The aggregation of proteins has been associated with several aspects of daily life, including food processing, blood coagulation and many neurodegenerative infections.
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Maity S, Pal S, Sardar S, Sepay N, Parvej H, Chakraborty J, Chandra Halder U. Multispectroscopic analysis and molecular modeling to investigate the binding of beta lactoglobulin with curcumin derivatives. RSC Adv 2016. [DOI: 10.1039/c6ra24275h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Bovine beta lactoglobulin (β-lg), the major whey protein, has a great affinity for a wide range of organic compounds like fatty acids, retinoletc.
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Affiliation(s)
- Sanhita Maity
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Sampa Pal
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Subrata Sardar
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Nayim Sepay
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Hasan Parvej
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Jishnu Chakraborty
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Umesh Chandra Halder
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
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Pal S, Maity S, Sardar S, Parvej H, Das N, Chakraborty J, Chandra Halder U. Curcumin inhibits the Al(iii) and Zn(ii) induced amyloid fibrillation of β-lactoglobulin in vitro. RSC Adv 2016. [DOI: 10.1039/c6ra24570f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Accumulation of ordered protein aggregates (or amyloids) is responsible for several neurodegenerative diseases.
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Affiliation(s)
- Sampa Pal
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Sanhita Maity
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Subrata Sardar
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Hasan Parvej
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Niloy Das
- Department of Chemistry
- Durgapur Govt. College
- Durgapur
- India
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Maity S, Sardar S, Pal S, Parvej H, Chakraborty J, Halder UC. New insight into the alcohol induced conformational change and aggregation of the alkaline unfolded state of bovine β-lactoglobulin. RSC Adv 2016. [DOI: 10.1039/c6ra12057a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we report for first time the self-assembly of β-lg from its alkaline unfolded state.
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Affiliation(s)
- Sanhita Maity
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Subrata Sardar
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Sampa Pal
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Hasan Parvej
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Jishnu Chakraborty
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
| | - Umesh Ch. Halder
- Organic Chemistry Section
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
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sardar S, Maity S, Pal S, Parvej H, Das N, Sepay N, Sarkar M, Halder UC. Facile synthesis and characterization of beta lactoglobulin–copper nanocomposites having antibacterial applications. RSC Adv 2016. [DOI: 10.1039/c6ra14162e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The synthesis of Cu0 nanoparticles and Cu–protein nanocomposites is a great challenge.
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Affiliation(s)
- Subrata sardar
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Sanhita Maity
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Sampa Pal
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Hasan Parvej
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Niloy Das
- Department of Chemistry
- Durgapur Govt. College
- Durgapur
- India
| | - Nayim Sepay
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032
- India
| | - Manas Sarkar
- Department of Physics
- Jadavpur University
- Kolkata – 700032
- India
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