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Panuszko A, Bruździak P, Śmiechowski M, Stasiulewicz M, Stefaniak J, Stangret J. DMSO hydration redefined: Unraveling the hydrophobic hydration of solutes with a mixed hydrophilic–hydrophobic characteristic. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111661] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Panuszko A, Nowak M, Bruździak P, Stasiulewicz M, Stangret J. Amides as models to study the hydration of proteins and peptides — spectroscopic and theoretical approach on hydration in various temperatures. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Bruździak P, Panuszko A, Kaczkowska E, Piotrowski B, Daghir A, Demkowicz S, Stangret J. Taurine as a water structure breaker and protein stabilizer. Amino Acids 2018; 50:125-140. [PMID: 29043510 PMCID: PMC5762795 DOI: 10.1007/s00726-017-2499-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/26/2017] [Indexed: 12/24/2022]
Abstract
The enhancing effect on the water structure has been confirmed for most of the osmolytes exhibiting both stabilizing and destabilizing properties in regard to proteins. The presented work concerns osmolytes, which should be classified as "structure breaking" solutes: taurine and N,N,N-trimethyltaurine (TMT). Here, we combine FTIR spectroscopy, DSC calorimetry and DFT calculations to gain an insight into the interactions between osmolytes and two proteins: lysozyme and ubiquitin. Despite high structural similarity, both osmolytes exert different influence on protein stability: taurine is a stabilizer, TMT is a denaturant. We show also that taurine amino group interacts directly with the side chains of proteins, whereas TMT does not interact with proteins at all. Although two solutes weaken on average the structure of the surrounding water, their hydration spheres are different. Taurine is surrounded by two populations of water molecules: bonded with weak H-bonds around sulfonate group, and strongly bonded around amino group. The strong hydrogen-bonded network of water molecules around the amino group of taurine further improves properties of enhanced protein hydration sphere and stabilizes the native protein form. Direct interactions of this group with surface side chains provide a proper orientation of taurine and prevents the [Formula: see text] group from negative influence. The weakened [Formula: see text] hydration sphere of TMT breaks up the hydrogen-bonded network of water around the protein and destabilizes it. However, TMT at low concentration stabilize both proteins to a small extent. This effect can be attributed to an actual osmophobic effect which is overcome if the concentration increases.
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Affiliation(s)
- P Bruździak
- Department of Physical Chemistry, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - A Panuszko
- Department of Physical Chemistry, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - E Kaczkowska
- Department of Physical Chemistry, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - B Piotrowski
- Department of Physical Chemistry, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - A Daghir
- Department of Physical Chemistry, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - S Demkowicz
- Department of Organic Chemistry, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - J Stangret
- Department of Physical Chemistry, Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
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Bruździak P, Adamczak B, Kaczkowska E, Czub J, Stangret J. Correction: Are stabilizing osmolytes preferentially excluded from the protein surface? FTIR and MD studies. Phys Chem Chem Phys 2016; 18:13717. [PMID: 27137810 DOI: 10.1039/c6cp90115h] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'Are stabilizing osmolytes preferentially excluded from the protein surface? FTIR and MD studies' by P. Bruździak et al., Phys. Chem. Chem. Phys., 2015, 17, 23155-23164.
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Affiliation(s)
- P Bruździak
- Department of Physical Chemistry, Gdansk University of Technology, Narutowicza 11-12, 80-233 Gdansk, Poland.
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Bruździak P, Adamczak B, Kaczkowska E, Czub J, Stangret J. Are stabilizing osmolytes preferentially excluded from the protein surface? FTIR and MD studies. Phys Chem Chem Phys 2015; 17:23155-64. [DOI: 10.1039/c5cp03065j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Stabilizing osmolytes are not always preferentially excluded and can interact with the protein surface in two ways: indirectly or directly.
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Affiliation(s)
- P. Bruździak
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - B. Adamczak
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - E. Kaczkowska
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - J. Czub
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
| | - J. Stangret
- Department of Physical Chemistry
- Gdansk University of Technology
- 80-233 Gdansk
- Poland
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