Peptide Microarrays Methods and Protocols
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Covalent Flexible Peptide Docking in Rosetta
bioRxiv preprint doi: https://doi.org/10.1101/2021.05.06.441297; this version posted May 6, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Covalent Flexible Peptide Docking in Rosetta Barr Tivon1,#, Ronen Gabizon1,#, Bente A. Somsen2, Peter J. Cossar2, Christian Ottmann2 , Nir London1,* 1 Department of Chemical and Structural Biology, The Weizmann Institute of Science, Rehovot, 7610001, Israel 2 Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven, The Netherlands # equal contribution * Corresponding author: [email protected] Keywords: Covalent peptides; peptide docking; CovPepDock; FlexPepDock; 14-3-3; Electrophilic peptides; bioRxiv preprint doi: https://doi.org/10.1101/2021.05.06.441297; this version posted May 6, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Abstract Electrophilic peptides that form an irreversible covalent bond with their target have great potential for binding targets that have been previously considered undruggable. However, the discovery of such peptides remains a challenge. Here, we present CovPepDock, a computational pipeline for peptide docking that incorporates covalent binding between the peptide and a receptor cysteine. We applied CovPepDock retrospectively to a dataset of 115 disulfide-bound peptides and a dataset of 54 electrophilic peptides, for which it produced a top-five scoring, near-native model, in 89% and 100% of the cases, respectively. -
A Global Review on Short Peptides: Frontiers and Perspectives †
molecules Review A Global Review on Short Peptides: Frontiers and Perspectives † Vasso Apostolopoulos 1 , Joanna Bojarska 2,* , Tsun-Thai Chai 3 , Sherif Elnagdy 4 , Krzysztof Kaczmarek 5 , John Matsoukas 1,6,7, Roger New 8,9, Keykavous Parang 10 , Octavio Paredes Lopez 11 , Hamideh Parhiz 12, Conrad O. Perera 13, Monica Pickholz 14,15, Milan Remko 16, Michele Saviano 17, Mariusz Skwarczynski 18, Yefeng Tang 19, Wojciech M. Wolf 2,*, Taku Yoshiya 20 , Janusz Zabrocki 5, Piotr Zielenkiewicz 21,22 , Maha AlKhazindar 4 , Vanessa Barriga 1, Konstantinos Kelaidonis 6, Elham Mousavinezhad Sarasia 9 and Istvan Toth 18,23,24 1 Institute for Health and Sport, Victoria University, Melbourne, VIC 3030, Australia; [email protected] (V.A.); [email protected] (J.M.); [email protected] (V.B.) 2 Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego˙ 116, 90-924 Lodz, Poland 3 Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Kampar 31900, Malaysia; [email protected] 4 Botany and Microbiology Department, Faculty of Science, Cairo University, Gamaa St., Giza 12613, Egypt; [email protected] (S.E.); [email protected] (M.A.) 5 Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego˙ 116, 90-924 Lodz, Poland; [email protected] (K.K.); [email protected] (J.Z.) 6 NewDrug, Patras Science Park, 26500 Patras, Greece; [email protected] 7 Department of Physiology and Pharmacology, -
1 Design and Production of Specifically and with High Affinity
1 Design and Production of Specifically and with High Affinity Reacting Peptides (SHARP®-s) by Jan C Biro HOMULUS FOUNDATION, 612 S. Flower Str., #1220, 90017 CA, USA [email protected] www.janbiro.com 2 Abstract Background A partially random target selection method was developed to design and produce affinity reagents (target) to any protein query. It is based on the recent concept of Proteomic Code (for review see Biro, 2007 [1]) which suggests that significant number of amino acids in specifically interacting proteins are coded by partially complementary codons. It means that the 1st and 3rd residues of codons coding many co-locating amino acids are complementary but the 2nd may but not necessarily complementary: like 5’-AXG-3’/3’-CXT-5’ codon pair, where X is any nucleotide. Results A mixture of 45 residue long, reverse, partially complementary oligonucleotide sequences (target pool) were synthesized to selected epitopes of query mRNA sequences. The 2nd codon residues were randomized. The target oligonucleotide pool was inserted into vectors, expressed and the protein products were screened for affinity to the query in Bacterial Two-Hybrid System. The best clones were used for larger-scale protein syntheses and characterization. It was possible to design and produce specific and with high affinity reacting (Kd: ~100 nM) oligopeptide reagents to GAL4 query oligopeptides. Conclusions Second codon residue randomization is a promising method to design and produce affinity peptides to any protein sequences. The method has the potential to be a rapid, inexpensive, high throughput, non-immunoglobulin based alternative to recent in vivo antibody generating procedures. -
Inkjet Printing for the Production of Protein Microarrays Mcwilliam Et Al Mimb Protein Microarrays Chapter 21
Methods in Molecular Biology Protein Microarrays Chapter 21: Inkjet Printing for the Production of Protein Microarrays Iain McWilliam*, Marisa Chong Kwan, Duncan Hall Arrayjet Ltd., MIC, Roslin, EH25 9RE, UK * Corresponding Author Keywords i. Inkjet ii. Microarrayer iii. Protein microarray iv. Printing buffer v. Diagnostic microarray vi. Non-contact vii. JetSpyder viii. JetGuard ix. Microarray production x. Antibody microarray Introduction Since their inception in 1995, microarrays have been the icon of the ‘omics revolution. Whereas DNA can be printed onto a wide range of surface chemistries with a wide range of buffers, proteins must be printed in buffers which protect them and onto substrates which maintain their structural integrity, binding sites and activity. Common buffers for protein storage contain cryoprotectorants (e.g. glycerol (1) or ethylene glycol) which add to the often viscous nature of protein solutions, so the ability of a microarrayer to print such solutions without extensive modification is a distinct advantage when producing protein microarrays. The most popular substrates for protein microarrays, designed specifically with structural protection in mind, are made with thin nitrocellulose or hydrogel coatings and are fragile themselves, which encourages the use of a non—contact method of printing. When addressing production throughput requirements, the ability to handle multiple samples simultaneously and to print those samples quickly on—the—fly is important to minimise production timescales. The technology should also be scalable and robust enough to accommodate a shift from R+D level production to full—scale, manufacturing levels of production. Arrayjet has used the key factors of being able to print potentially viscous protein solutions with a non—contact printing method to develop a range of microarrayers, all centred around an industrially proven inkjet printhead, which are highly suited to printing high quality protein microarrays at all levels of production. -
Process Development for Manufacturing Stochastic Peptide Microarrays
Process Development for Manufacturing Stochastic Peptide Microarrays Zur Erlangung des akademischen Grades eines DOKTORS DER INGENIEURSWISSENSCHAFTEN (Dr.-Ing.) von der KIT-Fakultät für Maschinenbau des Karlsruher Instituts für Technologie (KIT) angenommene DISSERTATION von M.Sc. Roman Popov Tag der mündlichen Prüfung: 20. März 2018 Hauptreferent: apl. Prof. Dr. Alexander Nesterov-Müller Korreferenten: Prof. Dr. Jan Korvink Prof. Dr.-Ing. Matthias Franzreb Dieses Werk ist unter einer Creative Commons Namensnennung – Nicht-kommerziell – Weitergabe unter gleichen Bedingungen 4.0 International Lizenz (CC BY-NC-SA 4.0) lizensiert: https://creativecommons.org/licenses/by-nc-sa/4.0/deed.de This document is licensed under a Creative Commons Attribution- NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0): https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en Abstract Tackling the challenges of developing therapies for cancer, infections, or immune system disorders requires understanding and manipulation of the metabolic pathways related to a disease state or a pathogen. An essential role in the corresponding biochemical cascades is played by proteins of various types, whose functions are manifested through their interactions with other molecules. In basic and applied research, the functionality and binding properties of proteins are more often studied using peptide microarrays, which are collections of protein fragments displayed on a solid support in a spot array format. Commercially available peptide microarrays are manufactured using various methods, which result in different spot densities and costs per spot. While being relatively simple and straightforward to implement, the wide-spread SPOT- technique provides less than a thousand of peptides on a standard size substrate, which is not sufficient for many biological applications. -
Longitudinal Development of Antibody Responses in COVID-19 Patients of Different Severity with ELISA, Peptide, and Glycan Arrays: an Immunological Case Series
pathogens Article Longitudinal Development of Antibody Responses in COVID-19 Patients of Different Severity with ELISA, Peptide, and Glycan Arrays: An Immunological Case Series Jasmin Heidepriem 1,†, Christine Dahlke 2,3,4,*,† , Robin Kobbe 2, René Santer 5, Till Koch 2,3,4 , Anahita Fathi 2,3,4 , Bruna M. S. Seco 1 , My L. Ly 2,3,4, Stefan Schmiedel 2, Dorothee Schwinge 6, Sonia Serna 7 , Katrin Sellrie 1, Niels-Christian Reichardt 7,8, Peter H. Seeberger 1 , Marylyn M. Addo 2,3,4,* , Felix F. Loeffler 1,* and on behalf of the ID-UKE COVID-19 Study Group ‡ 1 Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Muehlenberg 1, 14476 Potsdam, Germany; [email protected] (J.H.); [email protected] (B.M.S.S.); [email protected] (K.S.); [email protected] (P.H.S.) 2 Division of Infectious Diseases, First Department of Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; [email protected] (R.K.); [email protected] (T.K.); [email protected] (A.F.); [email protected] (M.L.L.); [email protected] (S.S.) 3 Department of Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine, 20251 Hamburg, Germany 4 German Center for Infection Research, Partner Site Hamburg-Lübeck-Borstel-Riems, Citation: Heidepriem, J.; Dahlke, C.; 20251 Hamburg, Germany 5 Kobbe, R.; Santer, R.; Koch, T.; Fathi, Department of Pediatrics, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; A.; Seco, B.M.S.; Ly, M.L.; Schmiedel, [email protected] 6 I. -
SARS-Cov-2 Epitope Mapping on Microarrays Highlights Strong Immune-Response to N Protein Region
bioRxiv preprint doi: https://doi.org/10.1101/2020.11.09.374082; this version posted November 9, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. SARS-CoV-2 epitope mapping on microarrays highlights strong immune-response to N protein region Angelo Musicò§1, Roberto Frigerio§1, Alessandro Mussida1, Luisa Barzon2, Alessandro Sinigaglia2, Silvia Riccetti2, Federico Gobbi3, Chiara Piubelli3, Greta Bergamaschi1, Marcella Chiari1, Alessandro Gori#*, Marina Cretich#* 1: Consiglio Nazionale delle Ricerche, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”” (SCITEC), Via Mario Bianco 9, 20131, Milano, Italy 2: Department of Molecular Medicine, University of Padova, Via A. Gabelli 63, 35121 Padova, Italy 3: Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Don A. Sempreboni, 5 – 37024 Negrar di Valpolicella (Verona), Italy §: these authors equally contributed #: these authors equally contributed *: corresponding authors [email protected] ; [email protected] Abstract A workflow for SARS-CoV-2 epitope discovery on peptide microarrays is herein reported. The process started with a proteome-wide screening of immunoreactivity based on the use of a high-density microarray followed by a refinement and validation phase on a restricted panel of probes using microarrays with tailored peptide immobilization through a click-based strategy. Progressively larger, independent cohorts of Covid-19 positive sera were tested in the refinement processes, leading to the identification of immunodominant regions on SARS-CoV-2 Spike (S), Nucleocapsid (N) protein and Orf1ab polyprotein. A summary study testing 50 serum samples highlighted an epitope of the N protein (region 155-171) providing 92% sensitivity and 100% specificity of IgG detection in Covid-19 samples thus being a promising candidate for rapid implementation in serological tests. -
Deep Time-Resolved Proteomic and Phosphoproteomic Profiling Of
Deep time-resolved proteomic and phosphoproteomic profiling of cigarette smoke-induced chronic obstructive pulmonary disease David Skerrett-Byrne BSc Biochem & Mol Bio (Hons)(UCD) MSc Biotech (UU) 25th March 2019 Supervisors: Professor Phil Hansbro, Dr. Matt Dun, Laureate Professor Rodney Scott, Professor Peter Wark, Professor Darryl Knight, Laureate Professor Paul Foster Discipline of Immunology and Microbiology and Priority Research Centre for Healthy Lungs School of Biomedical Science and Pharmacy Faculty of Health and Medicine University of Newcastle and Hunter Medical Research Institute Newcastle, NSW, Australia Submitted in fulfilment of the requirements for the award of a Doctor of Philosophy Declaration Statement of Originality I hereby certify that the work embodied in the thesis is my own work, conducted under normal supervision. The thesis contains no material which has been accepted, or is being examined, for the award of any other degree or diploma in any university or other tertiary institution and, to the best of my knowledge and belief, contains no material previously published or written by another person, except where due reference has been made. I give consent to the final version of my thesis being made available worldwide when deposited in the University’s Digital Repository, subject to the provisions of the Copyright Act 1968 and any approved embargo. ________________________ David Skerrett-Byrne 25/03/2019 Acknowledgment of Authorship I hereby certify that the work embodied in this thesis contains scholarly work of which I am a joint author. I have included as part of the thesis a written declaration endorsed in writing by my supervisor, attesting to my contribution to the joint scholarly work. -
Centenary Award and Sir Frederick Gowland Hopkins Memorial Lecture
Centenary Award and Sir Frederick Gowland Hopkins Memorial Lecture Centenary Award and Sir Frederick Gowland Hopkins Memorial Lecture Seeing the invisible by paramagnetic and diamagnetic NMR G. Marius Clore*1 *Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0520, U.S.A. scale interdomain motions involved in ligand binding, and to the interaction of monomeric amyloid β-peptide with the surface of amyloid protofibrils and the internal cavity surface of Centenary Award and Sir Frederick the chaperonin GroEL. Gowland Hopkins Memorial Lecture Delivered at the MRC Laboratory of Molecular Biology, Cambridge, on Introduction 13 December 2012 Proteins and their complexes are not static but dynamic and Marius Clore are best described as an ensemble of states. The major species is located at the minimum of the free energy landscape and represents the species that has been studied with so much Abstract success by conventional structural and biophysical tech- niques, including crystallography and NMR. But the static Sparsely populated transient states of proteins and their picture revealed by these studies does not describe the complexes play an important role in many biological processes complete picture. In addition to the major species, there exist including protein–protein and protein–DNA recognition, al- highly transient sparsely populated states that arise from rare lostery, conformational selection, induced fit and self-assembly. excursions between the minimum free energy configuration These states are difficult to study as their low population and other local minima of the free energy landscape [1]. Given and transient nature makes them effectively invisible to that the populations of such sparsely populated states are so conventional structural and biophysical techniques. -
Identification and Characterization of Posttranslational Modification-Specific Binding Proteins in Vivo by Mammalian Tethered Catalysis
Identification and characterization of posttranslational modification-specific binding proteins in vivo by mammalian tethered catalysis Tanya M. Spektor and Judd C. Rice1 Department of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90033 Communicated by C. David Allis, The Rockefeller University, New York, NY, July 14, 2009 (received for review February 26, 2009) Increasing evidence indicates that an important consequence of To overcome some of the limitations of in vitro approaches, a protein posttranslational modification (PTM) is the creation of a high previously undescribed in vivo method called yeast tethered catal- affinity binding site for the selective interaction with a PTM-specific ysis was developed (1). Briefly, an expressed fusion protein con- binding protein (BP). This PTM-mediated interaction is typically re- taining a target peptide sequence was tethered to an enzyme quired for downstream signaling propagation and corresponding resulting in the constitutive PTM of the peptide and, thereby, biological responses. Because the vast majority of mammalian pro- served as the bait in yeast two-hybrid screens for putative PTMBPs. teins contain PTMs, there is an immediate need to discover and Although this technique was used successfully to identify yeast characterize previously undescribed PTMBPs. To this end, we devel- PTMBPs, the ability to detect PTMBPs in higher eukaryotes is oped and validated an innovative in vivo approach called mammalian constrained by the limitations -
And Light-Directed Peptide Microarray Synthesis
Development of Chip-Based Electrochemically- and Light-Directed Peptide Microarray Synthesis by Pallav Kumar A Dissertation Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Approved October 2013 by the Graduate Supervisory Committee: Neal Woodbury, Chair James Allen Stephen Johnston ARIZONA STATE UNIVERSITY December 2013 ABSTRACT Peptide microarrays may prove to be a powerful tool for proteomics research and clinical diagnosis applications. Fodor et al. and Maurer et al. have shown proof-of- concept methods of light- and electrochemically-directed peptide microarray fabrication on glass and semiconductor microchips respectively. In this work, peptide microarray fabrication based on the abovementioned techniques were optimized. In addition, MALDI mass spectrometry based peptide synthesis characterization on semiconductor microchips was developed and novel applications of a CombiMatrix (CBMX) platform for electrochemically controlled synthesis were explored. We have investigated performance of 2-(2-nitrophenyl)propoxycarbonyl (NPPOC) derivatives as photo-labile protecting group. Specifically, influence of substituents on 4 and 5 positions of phenyl ring of NPPOC group on the rate of photolysis and the yield of the amine was investigated. The results indicated that substituents capable of forming a π-network with the nitro group enhanced the rate of photolysis and yield. Once such properly substituted NPPOC groups were used, the rate of photolysis/yield depended on the nature of protected amino group indicating that a different chemical step during the photocleavage process became the rate limiting step. We also focused on electrochemically-directed parallel synthesis of high-density peptide microarrays using the CBMX technology referred to above which uses electrochemically generated acids to perform patterned chemistry. -
Uncovering the Modified Immunopeptidome Reveals Insights Into Principles of PTM- Driven Antigenicity
bioRxiv preprint doi: https://doi.org/10.1101/2021.04.10.438991; this version posted April 15, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. Uncovering the modified immunopeptidome reveals insights into principles of PTM- driven antigenicity Assaf Kacen 1*, Aaron Javitt 1*, Matthias P. Kramer 1*, David Morgenstern 2, Tomer Tsaban 4, Adam Solomon1 ,Guo Ci Teo 3, Felipe da Veiga Leprevost 3, Eilon Barnea 5, Fengchao Yu3, Arie Admon 5, Lea Eisenbach1, Gal Cafri 7, Ora Schueler-Furman 4, Yishai Levin 2, Alexey I. Nesvizhskii 3,6, Yifat Merbl1$ 1. Department of Immunology, Weizmann Institute of Science, Rehovot, Israel. 2. De Botton Institute for Protein Profiling, Nancy and Stephen Grand Israel National Center for Personalized Medicine, Weizmann Institute of Science, Rehovot, Israel. 3. Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA. 4. Department of Microbiology and Molecular Genetics, Institute for Medical Research Israel-Canada, Faculty of Medicine, The Hebrew University, Jerusalem, Israel. 5. Faculty of Biology, Technion - Israel Institute of Technology, Haifa 32000, Israel. 6. Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, USA. 7. Sheba Medical Center, Ramat Gan, Israel *Equal contributions $ Correspondence: [email protected] Abstract Antigen processing and presentation are critical for modulating tumor-host interactions. While post-translational modifications (PTMs) can alter the binding and recognition of antigens, their identification remains challenging.