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Jakab A, Schlosser G, Feijlbrief M, Welling-Wester S, Manea M, Vila-Perello M, Andreu D, Hudecz F, Mező G. Synthesis and Antibody Recognition of Cyclic Epitope Peptides, Together with Their Dimer and Conjugated Derivatives Based on Residues 9−22 of Herpes Simplex Virus Type 1 Glycoprotein D. Bioconjug Chem 2009; 20:683-92. [DOI: 10.1021/bc800324g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Annamária Jakab
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - Gitta Schlosser
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - Matty Feijlbrief
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - Sytske Welling-Wester
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - Marilena Manea
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - Miquel Vila-Perello
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - David Andreu
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - Ferenc Hudecz
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
| | - Gábor Mező
- Research Group of Peptide Chemistry, Hungarian Academy of Sciences, and Department of Organic Chemistry, Eötvös L. University, P.O. Box 32, 1518 Budapest 112, Hungary, Laboratory for Medical Microbiology, Universiteit Groningen, 9713 GZ Groningen, The Netherlands, Laboratory of Analytical Chemistry and Biopolymer Structure Analysis, and Zukunftskolleg, University of Konstanz, 78457 Konstanz, Germany, and Department of Experimental and Health Sciences, Pompeu Fabra University, 08028 Barcelona, Spain
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Krikorian D, Stavrakoudis A, Biris N, Sakarellos C, Andreu D, de Oliveira E, Mezö G, Majer Z, Hudecz F, Welling-Wester S, Cung MT, Tsikaris V. Influence of sequential oligopeptide carriers on the bioactive structure of conjugated epitopes: Comparative study of the conformation of aHerpes simplex virus glycoprotein gD-1 epitope in the free and conjugated form, and protein “built-in” crystal structure. Biopolymers 2006; 84:383-99. [PMID: 16493659 DOI: 10.1002/bip.20486] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Synthetic carriers play an important role in immunogen presentation, due to their ability of inducing improved and specific responses to conjugated epitopes. Their influence on the bioactive conformation of the epitope, though admittedly crucial for relevant in vitro and in vivo applications, is difficult to evaluate, given the usual lack of information on the complex conformational features determined by the nature of the carrier and the mode of ligation. Using the Herpes simplex virus glycoprotein D-1 epitope (Leu(9)-Lys-Nle-Ala-Asp-Pro-Asn-Arg-Phe-Arg-Gly-Lys-Asp-Leu(22)) as a model, we have performed a detailed conformational analysis on the free epitope peptide in solution and on three constructs in which the epitope was conjugated to sequential oligopeptide carriers {Ac-[Lys-Aib-Gly](4)-OH (SOC(4))} (through either a thioether or an amide bond; Ac: acetyl) and polytuftsin oligomers {H-[Thr-Lys-Pro-Lys-Gly](4)-NH(2) (T20)}, (through a thioether bond). The analysis of the epitope conformation in the parent protein, in carrier-conjugated and free form, suggests that the beta-turn structure of the -Asp(13)-Pro-Asn-Arg(16)- segment is highly conserved and independent of the epitope form. However, small conformational variations were observed at the C-terminal part of the epitope, depending on the nature of the carrier.
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Affiliation(s)
- Dimitrios Krikorian
- Department of Chemistry, Section of Organic Chemistry and Biochemistry, University of Ioannina, 45110 Ioannina, Greece
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Schlosser G, Mezo G, Kiss R, Vass E, Majer Z, Feijlbrief M, Perczel A, Bosze S, Welling-Wester S, Hudecz F. Synthesis, solution structure analysis and antibody binding of cyclic epitope peptides from glycoprotein D of Herpes simplex virus type I. Biophys Chem 2003; 106:155-71. [PMID: 14556904 DOI: 10.1016/s0301-4622(03)00187-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Two cyclic peptides with a thioether bond have been synthesised corresponding to the 9-22 (9LKMADPNRFRGKDL(22)) sequence of glycoprotein D (gD-1) of Herpes simplex virus. The role of the secondary structure in protein-specific monoclonal antibody recognition was investigated. The sequence selected for this study comprises a strongly antigenic site adopting a beta-turn at residues 14Pro-(15)Asn. Thioether bond was formed between the free thiol group of cysteine or homocysteine inserted in position 11 and the chloroacetylated side chain of lysine in position 18. We report here the preparation of cyclic peptides containing Cys or Hcy in position 11, differing only in one methylene group. The linear precursor peptides were synthesised by Boc/Bzl strategy on MBHA resin, and the cyclisation was carried out in alkaline solution. The secondary structure of the peptides was studied by CD, FT-IR and NMR spectroscopy. The CD and FT-IR data have revealed fundamental changes in the solution conformation of the two compounds. The CH(2) group difference significantly resulted in the altered turn structure at the 12Ala and 13Asp as identified by NMR spectroscopy. The antibody binding properties of the cyclopeptides studied by gD-specific monoclonal antibody (A16) in direct and competition enzyme-linked immunosorbent assay (ELISA) were also not the same. We found that peptide LK[HcyADPNRFK]GKDL exhibited higher affinity to Mab A16 than peptide LK[CADPNRFK]GKDL, however, their reactivity was significantly lower compared to the linear ones. Our results clearly show the importance of secondary structure in an antibody binding and demonstrate that even a slight modification of the primary structure dramatically could influence the immune recognition of the synthetic antigens.
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Affiliation(s)
- Gitta Schlosser
- Research Group of Peptide Chemistry, Eötvös L. University, Hungarian Academy of Sciences, PO Box 32, Budapest 112, H-1518, Hungary
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van Kooij A, Middel J, Jakab F, Elfferich P, Koedijk DGAM, Feijlbrief M, Scheffer AJ, Degener JE, The TH, Scheek RM, Welling GW, Welling-Wester S. High level expression and secretion of truncated forms of herpes simplex virus type 1 and type 2 glycoprotein D by the methylotrophic yeast Pichia pastoris. Protein Expr Purif 2002; 25:400-8. [PMID: 12182819 DOI: 10.1016/s1046-5928(02)00034-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Herpes simplex virus type 1 and 2 (HSV-1 and -2) glycoproteins D (gD-1 and gD-2) play a role in the entry of the virus into the host cell. Availability of substantial amounts of these proteins, or large fragments thereof, will be needed to allow studies at the molecular level. We studied the potency of the Pichia pastoris yeast expression system to produce soluble forms of gD. The DNA sequences encoding the extracellular domains of gD [amino acids 1-314 (gD-1(1-314)) and amino acids 1-254 (gD-1(1-254)) of gD-1 and amino acids 1-314 of gD-2 (gD-2(1-314))] were cloned into the P. pastoris yeast expression vector pPIC9. Two truncated forms of gD-1 were fitted with a His tail (designated as gD-1(1-314His) and gD-1(1-254His)) to facilitate their purification. Large amounts of gD-1(1-314) and gD-1(1-314His) (280-300mg/L induction medium) were produced. The yields of recombinant gD-1(1-254) and gD-1(1-254His) were lower: 20-36mg/L, and the yield of the gD-2(1-314) fragment was much lower: 6mg/L. SDS-PAGE analysis revealed multiple glycosylated species of the larger gD fragments, ranging in apparent molecular weight from 31 to 78kDa. The smaller gD-1(1-254) fragment appeared as two bands with molecular weights of 33 and 31kDa. All recombinant proteins produced by P. pastoris were recognized, as expected, by a panel of MAbs (A16, DL6, A18, DL11, HD1, ABDI, and AP7). In addition, we showed that gD-1(1-314), gD-2(1-314), and gD-1(1-254His) were able to interfere with binding of HSV to susceptible cells. These results indicate that the conformations of the recombinant proteins closely resemble those of native gD.
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Affiliation(s)
- Adriaan van Kooij
- Department of Medical Microbiology, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
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