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Gundogdu M, Tadayon R, Salzano G, Shaw GS, Walden H. A mechanistic review of Parkin activation. Biochim Biophys Acta Gen Subj 2021; 1865:129894. [PMID: 33753174 DOI: 10.1016/j.bbagen.2021.129894] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 03/05/2021] [Accepted: 03/18/2021] [Indexed: 11/17/2022]
Abstract
Parkin and phosphatase and tensin homolog (PTEN)-induced kinase 1 (PINK1) constitute a feed-forward signalling pathway that mediates autophagic removal of damaged mitochondria (mitophagy). With over 130 mutations identified to date in over 1000 patients with early onset parkinsonism, Parkin is considered a hot spot of signalling pathways involved in PD aetiology. Parkin is an E3 ligase and how its activity is regulated has been extensively studied: inter-domain interactions exert a tight inhibition on Parkin activity; binding to phospho-ubiquitin relieves this auto-inhibition; and phosphorylation of Parkin shifts the equilibrium towards maximal Parkin activation. This review focusses on recent, structural findings on the regulation of Parkin activity. What follows is a mechanistic introduction to the family of E3 ligases that includes Parkin, followed by a brief description of structural elements unique to Parkin that lock the enzyme in an autoinhibited state, contrasted with emerging models that have shed light on possible mechanisms of Parkin activation.
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Affiliation(s)
- Mehmet Gundogdu
- Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Roya Tadayon
- Department of Biochemistry, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada
| | - Giulia Salzano
- Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Gary S Shaw
- Department of Biochemistry, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada
| | - Helen Walden
- Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
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Diercks BP, Jensen HH, Chalmers SB, Coode E, Vaughan MB, Tadayon R, Sáez PJ, Davis FM, Brohus M. The first junior European Calcium Society meeting: calcium research across scales, Kingdoms and countries. Biochim Biophys Acta Mol Cell Res 2021; 1868:118999. [PMID: 33711364 DOI: 10.1016/j.bbamcr.2021.118999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/05/2021] [Accepted: 02/20/2021] [Indexed: 01/09/2023]
Abstract
The first junior European Calcium Society online meeting, held October 20-21, 2020, aimed to promote junior researchers in the Ca2+ community. The meeting included four scientific sessions, covering Ca2+ research from molecular detail to whole organisms. Each session featured one invited speaker and three speakers selected based on submitted abstracts, with the overall aim of actively involving early-career researchers. Consequently, the meeting underlined the diversity of Ca2+ physiology, by showcasing research across scales and Kingdoms, as presented by a correspondingly diverse speaker panel across career stages and countries. In this meeting report, we introduce the visions of the junior European Calcium Society board and summarize the meeting content.
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Affiliation(s)
- Björn-Philipp Diercks
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg - Eppendorf, Hamburg, Germany.
| | - Helene H Jensen
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.
| | - Silke B Chalmers
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
| | - Emily Coode
- School of Life, Health and Chemical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - Michael B Vaughan
- Department of Physiology, School of Medicine, University College Cork, Cork, Ireland
| | - Roya Tadayon
- Department of Biochemistry, School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Pablo J Sáez
- Department of Biochemistry and Molecular Cell Biology, University Medical Center Hamburg - Eppendorf, Hamburg, Germany
| | - Felicity M Davis
- EMBL Australia Node for Single Molecule Science, School of Medical Sciences, University of New South Wales, Sydney, Australia
| | - Malene Brohus
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.
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Abstract
S100B is a dimeric EF-hand protein that undergoes a calcium-induced conformational change and interacts with a wide range of proteins to modulate their functions. The dopamine D2 receptor is one potential S100B binding partner that may play a key role in neurological processing. In this chapter, we describe the use of NMR spectroscopy to examine the interaction between calcium-bound S100B and the third intracellular loop (IC3) from the dopamine D2 receptor. We provide details that allow the strength of the interaction (K d) between the two proteins to be determined and the IC3 site of interaction on the structure of S100B to be identified. Both these characteristics can be identified from a single series of nondestructive experiments.
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Affiliation(s)
- Yuning Wang
- Department of Biochemistry, The University of Western Ontario, London, ON, Canada
| | - Roya Tadayon
- Department of Biochemistry, The University of Western Ontario, London, ON, Canada
| | - Gary S Shaw
- Department of Biochemistry, The University of Western Ontario, London, ON, Canada.
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Basters A, Geurink PP, Röcker A, Witting KF, Tadayon R, Hess S, Semrau MS, Storici P, Ovaa H, Knobeloch KP, Fritz G. Structural basis of the specificity of USP18 toward ISG15. Nat Struct Mol Biol 2017; 24:270-278. [PMID: 28165509 PMCID: PMC5405867 DOI: 10.1038/nsmb.3371] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 01/05/2017] [Indexed: 02/03/2023]
Abstract
Protein modification by ubiquitin and ubiquitin-like modifiers (Ubls) is counteracted by ubiquitin proteases and Ubl proteases, collectively termed DUBs. In contrast to other proteases of the ubiquitin-specific protease (USP) family, USP18 shows no reactivity toward ubiquitin but specifically deconjugates the interferon-induced Ubl ISG15. To identify the molecular determinants of this specificity, we solved the crystal structures of mouse USP18 alone and in complex with mouse ISG15. USP18 was crystallized in an open and a closed conformation, thus revealing high flexibility of the enzyme. Structural data, biochemical and mutational analysis showed that only the C-terminal ubiquitin-like domain of ISG15 is recognized and essential for USP18 activity. A critical hydrophobic patch in USP18 interacts with a hydrophobic region unique to ISG15, thus providing evidence that USP18's ISG15 specificity is mediated by a small interaction interface. Our results may provide a structural basis for the development of new drugs modulating ISG15 linkage.
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Affiliation(s)
- Anja Basters
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany, Breisacherstraße 64, 79106 Freiburg, Germany
| | - Paul P Geurink
- Department of Chemical Immunology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, Netherlands
| | - Annika Röcker
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany, Breisacherstraße 64, 79106 Freiburg, Germany
| | - Katharina F Witting
- Department of Chemical Immunology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, Netherlands
| | - Roya Tadayon
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany, Breisacherstraße 64, 79106 Freiburg, Germany.,Hermann-Staudinger-Graduate school, University of Freiburg, Hebelstrasse 27, 79104 Freiburg, Germany
| | - Sandra Hess
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany, Breisacherstraße 64, 79106 Freiburg, Germany
| | - Marta S Semrau
- Structural Biology Laboratory, Elettra Sincrotrone Trieste S.C.p.A., SS 14 - km 163,5 in AREA Science Park, 34149 Trieste, Italy
| | - Paola Storici
- Structural Biology Laboratory, Elettra Sincrotrone Trieste S.C.p.A., SS 14 - km 163,5 in AREA Science Park, 34149 Trieste, Italy
| | - Huib Ovaa
- Department of Chemical Immunology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, Netherlands
| | - Klaus-Peter Knobeloch
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany, Breisacherstraße 64, 79106 Freiburg, Germany
| | - Günter Fritz
- Institute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany, Breisacherstraße 64, 79106 Freiburg, Germany
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Tadayon R, Giesler S, Leanderson T, Fritz G. Characterization of RAGE-ligand interactions. Acta Crystallogr A Found Adv 2016. [DOI: 10.1107/s2053273316096315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Shahani M, Daneshi-Mehr F, Tadayon R, Hoseinzade Salavati B, Akbar Zadeh-Baghban AR, Zamanian A, Rezaei-Tavirani M. Glucose and fluoxetine induce fine structural change in human serum albumin. Iran J Pharm Res 2013; 12:185-91. [PMID: 24250587 PMCID: PMC3813215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Human serum albumin has been used as a model protein for protein folding and ligand binding studies over many decades. Due to its long life period and high concentration in plasma, HSA is highly sensitive to glycation. It is reported that 175 mg/dL glucose concentration is a threshold of kidney activity for the beginning of excretion of glucose. pH denaturation of HSA in absence and presence of different concentrations of glucose is studied and based on the Pace two-state model, the findings are analyzed. In addition, florescence emission data of albumin range in the period of 300-500 nm was depicted. The amounts of free energy change and [D]1/2 parameters of unfolding in correspond to florescence date indicate that glucose induces fine structural change in human serum albumin. Results showed that 175 mg/dL glucose concentration is a critical point for albumin structural and functional alteration.
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Affiliation(s)
- Minoo Shahani
- Department of Base Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Fatemeh Daneshi-Mehr
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Roya Tadayon
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | | | - Abbas Zamanian
- Department of Surgery, Faculty of Medicines, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mostafa Rezaei-Tavirani
- Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Rezaei-Tavirani M, Tadayon R, Mortazavi SA, Medhet A, Namaki S, Kalantari S, Noshinfar E. Fluoxetine competes with cortisol for binding to human serum albumin. Iran J Pharm Res 2012; 11:325-30. [PMID: 24250455 PMCID: PMC3813104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Human serum albumin (HSA) is an important protein that carries variety of substances like some hormones and drugs in blood. Pharmacological studies of the interaction of many drugs and HSA are reported during several decades, specially recently years. Interaction of cortisol and fluoxetine hydrochloride (FLX) (as a common anti-stress drug) with HSA (as their carrier in blood) has been studied separately by using different spectroscopic techniques. Here, considering the increment of anti-stress drugs consumption, conformational change of HSA in presence of cortisol and FLX in 50 mM tris buffer, at pH = 7.5 and 37°C, is investigated via pH meter, UV absorption and fluorescence spectroscopy and circular dichroism methods. pH meter findings indicate that the acid denaturation of HSA in the presence of drug and cortisol occurs in the similar manner and this pattern is different relative to the denaturation of HSA in the absence of two reagents. The results of the other techniques consistent with the pH meter findings show that FLX effects on the physiochemical properties of HSA are as that of Cortisol. In-vivo study in Rats confirms in-vitro findings which means blood cortisol level increased in the presence of FLX. Experimental results indicate that FLX and cortisol alter the structural aspects of HSA in similar manner, so, this findings lead to the following reasonable conclusion: "FLX is a competitive ligand for the binding of cortisol to HSA. Binding of FLX to HSA interferes to the interaction of cortisol-HSA."
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Affiliation(s)
- Mostafa Rezaei-Tavirani
- Islamic Azad University, Science and Research branch, Tehran, Iran.,Corresponding author: E-mail:
| | - Roya Tadayon
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran Iran.
| | - Seyyed Alireza Mortazavi
- Department of Pharmaceutics, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Arvin Medhet
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran Iran.
| | - Said Namaki
- Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran Iran
| | - Shiva Kalantari
- Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran Iran
| | - Ellaheh Noshinfar
- Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran Iran
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