51
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Werner HM, Estabrooks SK, Preston GM, Brodsky JL, Horne WS. Exploring the Functional Consequences of Protein Backbone Alteration in Ubiquitin through Native Chemical Ligation. Chembiochem 2019; 20:2346-2350. [PMID: 31059184 DOI: 10.1002/cbic.201900225] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Indexed: 01/21/2023]
Abstract
Ubiquitin (Ub) plays critical roles in myriad protein degradation and signaling networks in the cell. We report herein Ub mimetics based on backbones that blend natural and artificial amino acid units. The variants were prepared by a modular route based on native chemical ligation. Biological assays show that some are enzymatically polymerized onto protein substrates, and that the resulting Ub tags are recognized for downstream pathways. These results advance the size and complexity of folded proteins mimicked by artificial backbones and expand the functional scope of such agents.
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Affiliation(s)
- Halina M Werner
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Samuel K Estabrooks
- Department of Biological Sciences, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - G Michael Preston
- Department of Biological Sciences, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - W Seth Horne
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
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52
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Zhao X, Mißun M, Schneider T, Müller F, Lutz J, Scheffner M, Marx A, Kovermann M. Artificially Linked Ubiquitin Dimers Characterised Structurally and Dynamically by NMR Spectroscopy. Chembiochem 2019; 20:1772-1777. [PMID: 30920720 PMCID: PMC6771822 DOI: 10.1002/cbic.201900146] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Indexed: 12/23/2022]
Abstract
As one of the most prevalent post-translational modifications in eukaryotic cells, ubiquitylation plays vital roles in many cellular processes, such as protein degradation, DNA metabolism, and cell differentiation. Substrate proteins can be tagged by distinct types of polymeric ubiquitin (Ub) chains, which determine the eventual fate of the modified protein. A facile, click chemistry based approach for the efficient generation of linkage-defined Ub chains, including Ub dimers, was recently established. Within these chains, individual Ub moieties are connected through a triazole linkage, rather than the natural isopeptide bond. Herein, it is reported that the conformation of an artificially K48-linked Ub dimer resembles that of the natively linked dimer, with respect to structural and dynamic characteristics, as demonstrated by means of high-resolution NMR spectroscopy. Thus, it is proposed that artificially linked Ub dimers, as generated by this approach, represent potent tools for studying the inherently different properties and functions of distinct Ub chains.
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Affiliation(s)
- Xiaohui Zhao
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
| | - Maite Mißun
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
| | - Tobias Schneider
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
| | - Franziska Müller
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
| | - Joachim Lutz
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
| | - Martin Scheffner
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
| | - Andreas Marx
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
| | - Michael Kovermann
- Universität KonstanzChemieUniversitätsstrasse 1078457KonstanzGermany
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53
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De novo macrocyclic peptides that specifically modulate Lys48-linked ubiquitin chains. Nat Chem 2019; 11:644-652. [PMID: 31182821 DOI: 10.1038/s41557-019-0278-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 04/30/2019] [Indexed: 12/12/2022]
Abstract
A promising approach in cancer therapy is to find ligands that directly bind ubiquitin (Ub) chains. However, finding molecules capable of tightly and specifically binding Ub chains is challenging given the range of Ub polymer lengths and linkages and their subtle structural differences. Here, we use total chemical synthesis of proteins to generate highly homogeneous Ub chains for screening against trillion-member macrocyclic peptide libraries (RaPID system). De novo cyclic peptides were found that can bind tightly and specifically to K48-linked Ub chains, confirmed by NMR studies. These cyclic peptides protected K48-linked Ub chains from deubiquitinating enzymes and prevented proteasomal degradation of Ub-tagged proteins. The cyclic peptides could enter cells, inhibit growth and induce programmed cell death, opening new opportunities for therapeutic intervention. This highly synthetic approach, with both protein target generation and cyclic peptide discovery performed in vitro, will make other elaborate post-translationally modified targets accessible for drug discovery.
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54
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Diverse fate of ubiquitin chain moieties: The proximal is degraded with the target, and the distal protects the proximal from removal and recycles. Proc Natl Acad Sci U S A 2019; 116:7805-7812. [PMID: 30867293 DOI: 10.1073/pnas.1822148116] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
One of the enigmas in the ubiquitin (Ub) field is the requirement for a poly-Ub chain as a proteasomal targeting signal. The canonical chain appears to be longer than the distance between the two Ub-binding proteasomal receptors. Furthermore, genetic manipulation has shown that one receptor subunit is sufficient, which suggests that a single Ub can serve as a degradation signal. To shed light on this mystery, we chemically synthesized tetra-Ub, di-Ub (K48-based), and mono-Ub adducts of HA-α-globin, where the distal or proximal Ub moieties were tagged differentially with either Myc or Flag. When incubated in a crude cell extract, the distal Ub moiety in the tetra-Ub adduct was mostly removed by deubiquitinating enzymes (DUBs) and reconjugated to other substrates in the extract. In contrast, the proximal moiety was most likely degraded with the substrate. The efficacy of degradation was proportionate to the chain length; while tetra-Ub globin was an efficient substrate, with mono-Ub globin, we observed rapid removal of the Ub moiety with almost no degradation of the free globin. Taken together, these findings suggest that the proximal moieties are necessary for securing the association of the substrate with the proteasome along the proteolytic process, whereas the distal moieties are important in protecting the proximal moieties from premature deubiquitination. Interestingly, when the same experiment was carried out using purified 26S proteasome, mono- and tetra-Ub globin were similarly degraded, highlighting the roles of the entire repertoire of cellular DUBs in regulating the degradation of proteasomal substrates.
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55
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Pan M, Zheng Q, Ding S, Zhang L, Qu Q, Wang T, Hong D, Ren Y, Liang L, Chen C, Mei Z, Liu L. Chemical Protein Synthesis Enabled Mechanistic Studies on the Molecular Recognition of K27‐linked Ubiquitin Chains. Angew Chem Int Ed Engl 2019; 58:2627-2631. [DOI: 10.1002/anie.201810814] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/20/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Man Pan
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
- State Key Laboratory of Chemical OncogenomicsKey Laboratory of Chemical Biologythe Graduate School at ShenzenTsinghua University Shenzen Guangdong 518055 China
| | - Qingyun Zheng
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Shan Ding
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Lujia Zhang
- Beijing Advanced Innovation Center for Structural BiologySchool of Life SciencesTsinghua University Beijing 100084 China
| | - Qian Qu
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Tian Wang
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Danning Hong
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Yujing Ren
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Lujun Liang
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Chunlai Chen
- Beijing Advanced Innovation Center for Structural BiologySchool of Life SciencesTsinghua University Beijing 100084 China
| | - Ziqing Mei
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Lei Liu
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
- State Key Laboratory of Chemical OncogenomicsKey Laboratory of Chemical Biologythe Graduate School at ShenzenTsinghua University Shenzen Guangdong 518055 China
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56
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Site-specific ubiquitylation and SUMOylation using genetic-code expansion and sortase. Nat Chem Biol 2019; 15:276-284. [PMID: 30770915 DOI: 10.1038/s41589-019-0227-4] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 01/03/2019] [Indexed: 02/02/2023]
Abstract
Post-translational modification of proteins with ubiquitin and ubiquitin-like proteins (Ubls) is central to the regulation of eukaryotic cellular processes. Our ability to study the effects of ubiquitylation, however, is limited by the difficulty to prepare homogenously modified proteins in vitro and by the impossibility to selectively trigger specific ubiquitylation events in living cells. Here we combine genetic-code expansion, bioorthogonal Staudinger reduction and sortase-mediated transpeptidation to develop a general tool to ubiquitylate proteins in an inducible fashion. The generated ubiquitin conjugates display a native isopeptide bond and bear two point mutations in the ubiquitin C terminus that confer resistance toward deubiquitinases. Nevertheless, physiological integrity of sortase-generated diubiquitins in decoding cellular functions via recognition by ubiquitin-binding domains is retained. Our approach allows the site-specific attachment of Ubls to nonrefoldable, multidomain proteins and enables inducible and ubiquitin-ligase-independent ubiquitylation of proteins in mammalian cells, providing a powerful tool to dissect the biological functions of ubiquitylation with temporal control.
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57
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Recent advances in the chemical synthesis and semi-synthesis of poly-ubiquitin-based proteins and probes. Sci China Chem 2019. [DOI: 10.1007/s11426-018-9401-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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58
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Pan M, Zheng Q, Ding S, Zhang L, Qu Q, Wang T, Hong D, Ren Y, Liang L, Chen C, Mei Z, Liu L. Chemical Protein Synthesis Enabled Mechanistic Studies on the Molecular Recognition of K27‐linked Ubiquitin Chains. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810814] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Man Pan
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
- State Key Laboratory of Chemical OncogenomicsKey Laboratory of Chemical Biologythe Graduate School at ShenzenTsinghua University Shenzen Guangdong 518055 China
| | - Qingyun Zheng
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Shan Ding
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Lujia Zhang
- Beijing Advanced Innovation Center for Structural BiologySchool of Life SciencesTsinghua University Beijing 100084 China
| | - Qian Qu
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Tian Wang
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Danning Hong
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Yujing Ren
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Lujun Liang
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Chunlai Chen
- Beijing Advanced Innovation Center for Structural BiologySchool of Life SciencesTsinghua University Beijing 100084 China
| | - Ziqing Mei
- Biotechnology Research InstituteChinese Academy of Agricultural Science Beijing 100081 China
| | - Lei Liu
- Tsinghua-Peking Center for Life SciencesMOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
- State Key Laboratory of Chemical OncogenomicsKey Laboratory of Chemical Biologythe Graduate School at ShenzenTsinghua University Shenzen Guangdong 518055 China
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59
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Abstract
Access to well-defined ubiquitin conjugates has been key to elucidating the biochemical functions of proteins in the ubiquitin signaling network. Yet, we have a poor understanding of how deubiquitinases and ubiquitin-binding proteins respond to ubiquitin modifications when anchored to a protein other than ubiquitin or a ubiquitin-like protein. This is due to the difficulty of synthesizing ubiquitinated proteins comprised of native isopeptide bonds. Here we report on the evolution of a deubiquitinase capable of site-specifically modifying itself with defined ubiquitin chains. Following mutagenesis and yeast display screening, we identify a variant of the yeast ubiquitin C-terminal hydrolase Yuh1 that has a 28-fold improvement in the transamidation to hydrolysis ratio relative to the wild type enzyme. The switch in activity enables robust autoubiquitination of a lysine in the crossover loop to form an isopeptide bond. We demonstrate the utility of autoubiquitinating the evolved Yuh1 variant by investigating the consequences of ubiquitin chain anchoring on the activities of other deubiquitinases. Much to our surprise, we find that certain deubiquitinases are exquisitely sensitive to chain anchoring. These results highlight the importance of investigating the biochemical activities of deubiquitinases with both substrate-anchored and unanchored ubiquitin chains.
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60
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Cukier RI. Conformational Ensembles Exhibit Extensive Molecular Recognition Features. ACS OMEGA 2018; 3:9907-9920. [PMID: 31459119 PMCID: PMC6644992 DOI: 10.1021/acsomega.8b00898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 08/14/2018] [Indexed: 06/10/2023]
Abstract
Intrinsically disordered proteins (IDPs) are important for signaling and regulatory pathways. In contrast to folded proteins, they sample a diverse conformational space. IDPs have residue ranges within a sequence that have been referred to as molecular recognition features (MoRFs). A MoRF can be viewed as contiguous residues exhibiting a conformational disorder that become ordered upon binding to another protein or ligand. In this work, we introduce a structural characterization of MoRFs based on entropy and mutual information (MI). In this view, a MoRF is a set of contiguous residues that exhibit a large entropy (from rotameric residue sampling) and large MI, the latter indicating a dependence among the residues' rotameric sampling comprising the MoRF. The methodology is first applied to a number of ubiquitin ensembles that were obtained based on nuclear magnetic resonance experiments. One is a denatured Ub ensemble that has a large entropy for various unitSizes (number of contiguous residues) but essentially zero MI, indicting no dependence among the residue rotamer sampling. Another ensemble does exhibit extensive regions along the sequence where there are MoRFs centered on nonsecondary structure regions. The MoRFs are present for unitSizes 2-10. That a substantial number of MoRFs are present in Ub strongly suggests a conformational selection mechanism for this protein. Two additional ensembles for the cyclin-dependent kinase inhibitor Sic1 and for the amyloid protein α-synuclein, which have been shown to be IDPs, are also analyzed. Both exhibit MoRF-like character.
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61
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Jbara M, Laps S, Morgan M, Kamnesky G, Mann G, Wolberger C, Brik A. Palladium prompted on-demand cysteine chemistry for the synthesis of challenging and uniquely modified proteins. Nat Commun 2018; 9:3154. [PMID: 30089783 PMCID: PMC6082840 DOI: 10.1038/s41467-018-05628-0] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 07/16/2018] [Indexed: 01/12/2023] Open
Abstract
Organic chemistry allows for the modification and chemical preparation of protein analogues for various studies. The thiolate side chain of the Cys residue has been a key functionality in these ventures. In order to generate complex molecular targets, there is a particular need to incorporate orthogonal protecting groups of the thiolated amino acids to control the directionality of synthesis and modification site. Here, we demonstrate the tuning of palladium chemoselectivity in aqueous medium for on-demand deprotection of several Cys-protecting groups that are useful in protein synthesis and modification. These tools allow the preparation of highly complex analogues as we demonstrate in the synthesis of the copper storage protein and selectively modified peptides with multiple Cys residues. We also report the synthesis of an activity-based probe comprising ubiquitinated histone H2A and its incorporation into nucleosomes and demonstrate its reactivity with deubiquitinating enzyme to generate a covalent nucleosome-enzyme complex.
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Affiliation(s)
- Muhammad Jbara
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 3200008, Israel
| | - Shay Laps
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 3200008, Israel
| | - Michael Morgan
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD, 21205-2185, USA
| | - Guy Kamnesky
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 3200008, Israel
| | - Guy Mann
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 3200008, Israel
| | - Cynthia Wolberger
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, 725 North Wolfe Street, Baltimore, MD, 21205-2185, USA
| | - Ashraf Brik
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 3200008, Israel.
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62
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Boekhoven J, Didier D. Vereinigung von Kunst und Wissenschaft: Die 53. Bürgenstock-Konferenz. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Job Boekhoven
- Fakultät für Chemie und Institute for Advanced Study; Technische Universität München; Lichtenbergstraße 4 85748 Garching Deutschland
| | - Dorian Didier
- Fakultät für Chemie und Pharmazie; Ludwig-Maximilians-Universität; Butenandtstraße 5-13 81377 München Deutschland
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63
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Boekhoven J, Didier D. Merging Art and Science-The 53rd Bürgenstock Conference. Angew Chem Int Ed Engl 2018; 57:10011-10014. [PMID: 30003659 DOI: 10.1002/anie.201806142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
For the 53rd time, the Bürgenstock Conference gathered some of the most gifted scientists and rising stars in organic, physical, and bioorganic chemistry. Orchestrated by Ilan Marek (President) and his successor, Véronique Gouverneur, the synergy between art and science took place in Brunnen, Switzerland, with a beatiful view over Lake Lucerne.
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Affiliation(s)
- Job Boekhoven
- Department of Chemistry and Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377, Munich, Germany
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64
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Mulder MPC, Merkx R, Witting KF, Hameed DS, El Atmioui D, Lelieveld L, Liebelt F, Neefjes J, Berlin I, Vertegaal ACO, Ovaa H. Total Chemical Synthesis of SUMO and SUMO-Based Probes for Profiling the Activity of SUMO-Specific Proteases. Angew Chem Int Ed Engl 2018; 57:8958-8962. [PMID: 29771001 PMCID: PMC6055820 DOI: 10.1002/anie.201803483] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 05/09/2018] [Indexed: 12/31/2022]
Abstract
SUMO is a post-translational modifier critical for cell cycle progression and genome stability that plays a role in tumorigenesis, thus rendering SUMO-specific enzymes potential pharmacological targets. However, the systematic generation of tools for the activity profiling of SUMO-specific enzymes has proven challenging. We developed a diversifiable synthetic platform for SUMO-based probes by using a direct linear synthesis method, which permits N- and C-terminal labelling to incorporate dyes and reactive warheads, respectively. In this manner, activity-based probes (ABPs) for SUMO-1, SUMO-2, and SUMO-3-specific proteases were generated and validated in cells using gel-based assays and confocal microscopy. We further expanded our toolbox with the synthesis of a K11-linked diSUMO-2 probe to study the proteolytic cleavage of SUMO chains. Together, these ABPs demonstrate the versatility and specificity of our synthetic SUMO platform for in vitro and in vivo characterization of the SUMO protease family.
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Affiliation(s)
- Monique P C Mulder
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Remco Merkx
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Current address: Medicines Evaluation Board, Graadt van Roggenweg 500, 3531, AH, Utrecht, The Netherlands
| | - Katharina F Witting
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Dharjath S Hameed
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Dris El Atmioui
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Lindsey Lelieveld
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Current address: Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300, RA, Leiden, The Netherlands
| | - Frauke Liebelt
- Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Jacques Neefjes
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Ilana Berlin
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Alfred C O Vertegaal
- Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
| | - Huib Ovaa
- Division of Cell Biology, Netherlands Cancer Institute (NKI), Plesmanlaan 121, 1066, CX, Amsterdam, The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology, Leiden University Medical Center (LUMC), Einthovenweg 20, 2333, ZC, Leiden, The Netherlands
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65
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Chu GC, Bai JS, Kong YF, Fan J, Sun SS, Xu HJ, Shi J, Li YM. Efficient semi-synthesis of ubiquitin-7-amino-4-methylcoumarin. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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66
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Qu Q, Pan M, Gao S, Zheng Q, Yu Y, Su J, Li X, Hu H. A Highly Efficient Synthesis of Polyubiquitin Chains. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800234. [PMID: 30027052 PMCID: PMC6051384 DOI: 10.1002/advs.201800234] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 04/17/2018] [Indexed: 06/08/2023]
Abstract
A robust, microwave-assisted, highly efficient, solid-phase peptide synthesis method for preparing isopeptide-linked 62-mer and 76-mer isoubiquitins and polyubiquitin is developed. The strategy avoids the use of costly resins and pseudoprolines, and the isopeptide-linked building blocks can be assembled with high initial purity within 1 day. All seven diubiquitins are successfully synthesized on a multi-milligram scale; a four-segment, three-ligation method is used to obtain a K33-/K11-linked mixed triubiquitin in excellent yield. Circular dichroism and crystallographic analyses are used to verify the structures of the well-folded, synthetic polyubiquitin chains. The facile synthetic strategy is expected to be generally applicable for the rapid synthesis of isopeptide-linked isoUbs and to pave the way for the study of longer polyubiquitin chains.
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Affiliation(s)
- Qian Qu
- School of PharmacySecond Military Medical University325 Guohe RoadShanghai200433China
- Tsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Man Pan
- Tsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Shuai Gao
- Tsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Qing‐Yun Zheng
- Tsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Yuan‐Yuan Yu
- Tsinghua‐Peking Center for Life SciencesTsinghua UniversityBeijing100084China
| | - Jia‐Can Su
- Changhai HospitalSecond Military Medical University168 Changhai RoadShanghai200433China
| | - Xiang Li
- School of PharmacySecond Military Medical University325 Guohe RoadShanghai200433China
| | - Hong‐Gang Hu
- School of PharmacySecond Military Medical University325 Guohe RoadShanghai200433China
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67
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Tang Q, Wu P, Chen H, Li G. Pleiotropic roles of the ubiquitin-proteasome system during viral propagation. Life Sci 2018; 207:350-354. [PMID: 29913185 PMCID: PMC7094228 DOI: 10.1016/j.lfs.2018.06.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 11/09/2022]
Abstract
Protein ubiquitination is a highly conserved post-translational modification affecting various biological processes including viral propagation. Ubiquitination has multiple effects on viral propagation, including viral genome uncoating, viral replication, and immune evasion. Ubiquitination of viral proteins is triggered by the ubiquitin-proteasome system (UPS). This involves the covalent attachment of the highly conserved 76 amino acid residue ubiquitin protein to target proteins by the consecutive actions of E1, E2 and E3 enzymes, and the 26S proteasome that together form a multiprotein complex that degrades target proteins. The UPS is the primary cytosolic proteolytic machinery for the selective degradation of various forms of proteins including viral proteins, thereby limiting viral growth in host cells. To combat this host anti-viral machinery, viruses have evolved the ability to employ or subvert the UPS to inactivate or degrade cellular proteins to favour viral propagation. This review highlights our current knowledge on the different roles of the UPS during viral propagation.
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Affiliation(s)
- Qi Tang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Peng Wu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Huiqing Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Guohui Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China; School of Public Health, University of California, Berkeley, CA, USA.
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68
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Dadová J, Galan SR, Davis BG. Synthesis of modified proteins via functionalization of dehydroalanine. Curr Opin Chem Biol 2018; 46:71-81. [PMID: 29913421 DOI: 10.1016/j.cbpa.2018.05.022] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/02/2018] [Accepted: 05/29/2018] [Indexed: 12/17/2022]
Abstract
Dehydroalanine has emerged in recent years as a non-proteinogenic residue with strong chemical utility in proteins for the study of biology. In this review we cover the several methods now available for its flexible and site-selective incorporation via a variety of complementary chemical and biological techniques and examine its reactivity, allowing both creation of modified protein side-chains through a variety of bond-forming methods (C-S, C-N, C-Se, C-C) and as an activity-based probe in its own right. We illustrate its utility with selected examples of biological and technological discovery and application.
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Affiliation(s)
- Jitka Dadová
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Sébastien Rg Galan
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Benjamin G Davis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, United Kingdom.
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69
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Mulder MPC, Merkx R, Witting KF, Hameed DS, El Atmioui D, Lelieveld L, Liebelt F, Neefjes J, Berlin I, Vertegaal ACO, Ovaa H. Total Chemical Synthesis of SUMO and SUMO-Based Probes for Profiling the Activity of SUMO-Specific Proteases. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803483] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Monique P. C. Mulder
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Remco Merkx
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Current address: Medicines Evaluation Board; Graadt van Roggenweg 500 3531 AH Utrecht The Netherlands
| | - Katharina F. Witting
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Dharjath S. Hameed
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Dris El Atmioui
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Lindsey Lelieveld
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Current address: Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 2300 RA Leiden The Netherlands
| | - Frauke Liebelt
- Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Jacques Neefjes
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Ilana Berlin
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Alfred C. O. Vertegaal
- Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
| | - Huib Ovaa
- Division of Cell Biology; Netherlands Cancer Institute (NKI); Plesmanlaan 121 1066 CX Amsterdam The Netherlands
- Oncode Institute and Department of Cell and Chemical Biology; Leiden University Medical Center (LUMC); Einthovenweg 20 2333 ZC Leiden The Netherlands
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70
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Meledin R, Mali SM, Kleifeld O, Brik A. Activity-Based Probes Developed by Applying a Sequential Dehydroalanine Formation Strategy to Expressed Proteins Reveal a Potential α-Globin-Modulating Deubiquitinase. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Roman Meledin
- Schulich Faculty of Chemistry; Technion Israel Institute of Technology; Haifa 3200008 Israel
| | - Sachitanand M. Mali
- Schulich Faculty of Chemistry; Technion Israel Institute of Technology; Haifa 3200008 Israel
| | - Oded Kleifeld
- Faculty of Biology; Technion Israel Institute of Technology; Haifa 3200003 Israel
| | - Ashraf Brik
- Schulich Faculty of Chemistry; Technion Israel Institute of Technology; Haifa 3200008 Israel
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71
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Meledin R, Mali SM, Kleifeld O, Brik A. Activity-Based Probes Developed by Applying a Sequential Dehydroalanine Formation Strategy to Expressed Proteins Reveal a Potential α-Globin-Modulating Deubiquitinase. Angew Chem Int Ed Engl 2018. [PMID: 29527788 DOI: 10.1002/anie.201800032] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We report a general and novel semisynthetic strategy for the preparation of ubiquitinated protein-activity-based probes on the basis of sequential dehydroalanine formation on expressed proteins. We applied this approach to construct a physiologically and therapeutically relevant ubiquitinated α-globin probe, which was used for the enrichment and proteomic identification of α-globin-modulating deubiquitinases. We found USP15 as a potential deubiquitinase for the modulation of α-globin, an excess of which aggravates β-thalassemia symptoms. This development opens new opportunities for activity-based-probe design to shed light on the important aspects underlying ubiquitination and deubiquitination in health and disease.
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Affiliation(s)
- Roman Meledin
- Schulich Faculty of Chemistry, Technion Israel Institute of Technology, Haifa, 3200008, Israel
| | - Sachitanand M Mali
- Schulich Faculty of Chemistry, Technion Israel Institute of Technology, Haifa, 3200008, Israel
| | - Oded Kleifeld
- Faculty of Biology, Technion Israel Institute of Technology, Haifa, 3200003, Israel
| | - Ashraf Brik
- Schulich Faculty of Chemistry, Technion Israel Institute of Technology, Haifa, 3200008, Israel
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72
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Si Y, Liang L, Tang S, Qi Y, Huang Y, Liu L. Semi-synthesis of disulfide-linked branched tri-ubiquitin mimics. Sci China Chem 2018. [DOI: 10.1007/s11426-017-9189-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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73
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Sun H, Meledin R, Mali SM, Brik A. Total chemical synthesis of ester-linked ubiquitinated proteins unravels their behavior with deubiquitinases. Chem Sci 2018; 9:1661-1665. [PMID: 29675213 PMCID: PMC5887810 DOI: 10.1039/c7sc04518b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 12/19/2017] [Indexed: 12/27/2022] Open
Abstract
The novel synthetic strategy for preparation of ester linked ubiquitinated proteins was developed. We found that the ester linkage could be cleaved by deubiquitinases with different efficiency relative to the isopeptide-linked substrate.
Ester-linked ubiquitinated proteins have been reported by several groups to be involved in ubiquitin signalling. However, due to the lack of the suitable tools to homogeneously produce such conjugates, their exact physiological roles and biochemical behavior remain enigmatic. Here, we report for the first time on the development of a novel synthetic strategy based on total chemical synthesis of proteins to construct ubiquitinated proteins, where ubiquitin is linked to the substrate via an ester bond. In this study, we prepared ester- and isopeptide-linked ubiquitinated α-globin and examined their relative behaviors with various deubiquitinases. We found that deubiquitinases are able to cleave the ester linkage with different efficiency relative to the isopeptide-linked substrate. These results may indicate that ester-linked ubiquitinated proteins are natural substrates for deubiquitinases.
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Affiliation(s)
- Hao Sun
- Schulich Faculty of Chemistry , Technion Israel Institute of Technology , Haifa , 3200008 , Israel .
| | - Roman Meledin
- Schulich Faculty of Chemistry , Technion Israel Institute of Technology , Haifa , 3200008 , Israel .
| | - Sachitanand M Mali
- Schulich Faculty of Chemistry , Technion Israel Institute of Technology , Haifa , 3200008 , Israel .
| | - Ashraf Brik
- Schulich Faculty of Chemistry , Technion Israel Institute of Technology , Haifa , 3200008 , Israel .
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74
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Abstract
The availability of different polyubiquitin chains of specific linkage types has changed the appreciation of the specificity in the ubiquitin (Ub) system. Numerous E2 Ub-conjugating enzymes and E3 Ub ligases, Ub-binding domains (UBDs), and deubiquitinases (DUBs) are now known to assemble, bind, or hydrolyze individual linkage types, respectively. Biochemical and structural studies of these processes require milligram quantities of pure polyUb. Here we describe protocols that allow the enzymatic synthesis and purification of six of the eight homotypic polyUb chains through the use of chain-specific Ub ligases and DUBs.
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Affiliation(s)
- Martin A Michel
- Division of Protein and Nucleic Acid Chemistry, MRC Laboratory of Molecular Biology, Cambridge, UK
| | - David Komander
- Division of Protein and Nucleic Acid Chemistry, MRC Laboratory of Molecular Biology, Cambridge, UK.
| | - Paul R Elliott
- Division of Protein and Nucleic Acid Chemistry, MRC Laboratory of Molecular Biology, Cambridge, UK.
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75
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Zhao X, Lutz J, Höllmüller E, Scheffner M, Marx A, Stengel F. Identification of Proteins Interacting with Ubiquitin Chains. Angew Chem Int Ed Engl 2017; 56:15764-15768. [DOI: 10.1002/anie.201705898] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/01/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaohui Zhao
- Departments of Chemistry and Biology; Konstanz Research School Chemical Biology; University of Konstanz; Universitätsstrasse 10 78457 Konstanz Germany
| | - Joachim Lutz
- Departments of Chemistry and Biology; Konstanz Research School Chemical Biology; University of Konstanz; Universitätsstrasse 10 78457 Konstanz Germany
| | - Eva Höllmüller
- Departments of Chemistry and Biology; Konstanz Research School Chemical Biology; University of Konstanz; Universitätsstrasse 10 78457 Konstanz Germany
| | - Martin Scheffner
- Departments of Chemistry and Biology; Konstanz Research School Chemical Biology; University of Konstanz; Universitätsstrasse 10 78457 Konstanz Germany
| | - Andreas Marx
- Departments of Chemistry and Biology; Konstanz Research School Chemical Biology; University of Konstanz; Universitätsstrasse 10 78457 Konstanz Germany
| | - Florian Stengel
- Departments of Chemistry and Biology; Konstanz Research School Chemical Biology; University of Konstanz; Universitätsstrasse 10 78457 Konstanz Germany
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76
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Zhao X, Lutz J, Höllmüller E, Scheffner M, Marx A, Stengel F. Identifizierung von Interaktoren von Ubiquitinketten. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaohui Zhao
- Fachbereich Chemie und Biologie; Konstanz Research School Chemical Biology; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
| | - Joachim Lutz
- Fachbereich Chemie und Biologie; Konstanz Research School Chemical Biology; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
| | - Eva Höllmüller
- Fachbereich Chemie und Biologie; Konstanz Research School Chemical Biology; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
| | - Martin Scheffner
- Fachbereich Chemie und Biologie; Konstanz Research School Chemical Biology; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
| | - Andreas Marx
- Fachbereich Chemie und Biologie; Konstanz Research School Chemical Biology; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
| | - Florian Stengel
- Fachbereich Chemie und Biologie; Konstanz Research School Chemical Biology; Universität Konstanz; Universitätsstraße 10 78457 Konstanz Deutschland
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77
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Tang S, Liang LJ, Si YY, Gao S, Wang JX, Liang J, Mei Z, Zheng JS, Liu L. Practical Chemical Synthesis of Atypical Ubiquitin Chains by Using an Isopeptide-Linked Ub Isomer. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708067] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Shan Tang
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Lu-Jun Liang
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Yan-Yan Si
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Shuai Gao
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Jia-Xing Wang
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Jun Liang
- School of Life Sciences; University of Science and Technology of China; Hefei 230026 China
| | - Ziqing Mei
- Biotechnology Research Institute; Chinese Academy of Agricultural Sciences; Beijing 100081 China
| | - Ji-Shen Zheng
- School of Life Sciences; University of Science and Technology of China; Hefei 230026 China
| | - Lei Liu
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
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78
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Tang S, Liang LJ, Si YY, Gao S, Wang JX, Liang J, Mei Z, Zheng JS, Liu L. Practical Chemical Synthesis of Atypical Ubiquitin Chains by Using an Isopeptide-Linked Ub Isomer. Angew Chem Int Ed Engl 2017; 56:13333-13337. [DOI: 10.1002/anie.201708067] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Shan Tang
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Lu-Jun Liang
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Yan-Yan Si
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Shuai Gao
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Jia-Xing Wang
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Jun Liang
- School of Life Sciences; University of Science and Technology of China; Hefei 230026 China
| | - Ziqing Mei
- Biotechnology Research Institute; Chinese Academy of Agricultural Sciences; Beijing 100081 China
| | - Ji-Shen Zheng
- School of Life Sciences; University of Science and Technology of China; Hefei 230026 China
| | - Lei Liu
- Tsinghua-Peking Center for Life Sciences; Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education); Department of Chemistry; Tsinghua University; Beijing 100084 China
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