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Jones SP, Cook KH, Holmquist ML, Almekinder LJ, Delaney AM, Charles R, Labbe N, Perdue J, Jackson N, Pichichero ME, Kaur R, Michel LV, Gleghorn ML. Vaccine target and carrier molecule nontypeable Haemophilus influenzae protein D dimerizes like the close Escherichia coli GlpQ homolog but unlike other known homolog dimers. Proteins 2023; 91:161-170. [PMID: 36065600 DOI: 10.1002/prot.26418] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/17/2022] [Accepted: 08/26/2022] [Indexed: 01/11/2023]
Abstract
We have determined the 1.8 Å X-ray crystal structure of nonlipidated (i.e., N-terminally truncated) nontypeable Haemophilus influenzae (NTHi; H. influenzae) protein D. Protein D exists on outer membranes of H. influenzae strains and acts as a virulence factor that helps invade human cells. Protein D is a proven successful antigen in animal models to treat obstructive pulmonary disease (COPD) and otitis media (OM), and when conjugated to polysaccharides also has been used as a carrier molecule for human vaccines, for example in GlaxoSmithKline Synflorix™. NTHi protein D shares high sequence and structural identify to the Escherichia coli (E. coli) glpQ gene product (GlpQ). E. coli GlpQ is a glycerophosphodiester phosphodiesterase (GDPD) with a known dimeric structure in the Protein Structural Database, albeit without an associated publication. We show here that both structures exhibit similar homodimer organization despite slightly different crystal lattices. Additionally, we have observed both the presence of weak dimerization and the lack of dimerization in solution during size exclusion chromatography (SEC) experiments yet have distinctly observed dimerization in native mass spectrometry analyses. Comparison of NTHi protein D and E. coli GlpQ with other homologous homodimers and monomers shows that the E. coli and NTHi homodimer interfaces are distinct. Despite this distinction, NTHi protein D and E. coli GlpQ possess a triose-phosphate isomerase (TIM) barrel domain seen in many of the other homologs. The active site of NTHi protein D is located near the center of this TIM barrel. A putative glycerol moiety was modeled in two different conformations (occupancies) in the active site of our NTHi protein D structure and we compared this to ligands modeled in homologous structures. Our structural analysis should aid in future efforts to determine structures of protein D bound to substrates, analog intermediates, and products, to fully appreciate this reaction scheme and aiding in future inhibitor design.
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Affiliation(s)
- Seth P Jones
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Kali H Cook
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Melody L Holmquist
- National Technical Institute for the Deaf, Rochester Institute of Technology, Rochester, New York, USA
| | - Liam J Almekinder
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Annie M Delaney
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Ryhl Charles
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Natalie Labbe
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Janai Perdue
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Niaya Jackson
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Michael E Pichichero
- Center for Infectious Diseases and Immunology, Rochester General Hospital Research Institute, Rochester, New York, USA
| | - Ravinder Kaur
- Center for Infectious Diseases and Immunology, Rochester General Hospital Research Institute, Rochester, New York, USA
| | - Lea V Michel
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
| | - Michael L Gleghorn
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, USA
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Michel LV, Kaur R, Gleghorn ML, Holmquist M, Pryharski K, Perdue J, Jones SP, Jackson N, Pilo I, Kasper A, Labbe N, Pichichero M. Haemophilus influenzae Protein D antibody suppression in a multi-component vaccine formulation. FEBS Open Bio 2022; 12:2191-2202. [PMID: 36263849 PMCID: PMC9714371 DOI: 10.1002/2211-5463.13498] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/20/2022] [Accepted: 10/19/2022] [Indexed: 01/25/2023] Open
Abstract
Nontypeable Haemophilus influenzae (NTHi) has emerged as a dominant mucosal pathogen causing acute otitis media (AOM) in children, acute sinusitis in children and adults, and acute exacerbations of chronic bronchitis in adults. Consequently, there is an urgent need to develop a vaccine to protect against NTHi infection. A multi-component vaccine will be desirable to avoid emergence of strains expressing modified proteins allowing vaccine escape. Protein D (PD), outer membrane protein (OMP) 26, and Protein 6 (P6) are leading protein vaccine candidates against NTHi. In pre-clinical research using mouse models, we found that recombinantly expressed PD, OMP26, and P6 induce robust antibody responses after vaccination as individual vaccines, but when PD and OMP26 were combined into a single vaccine formulation, PD antibody levels were significantly lower. We postulated that PD and OMP26 physiochemically interacted to mask PD antigenic epitopes resulting in the observed effect on antibody response. However, column chromatography and mass spectrometry analysis did not support our hypothesis. We postulated that the effect might be in vivo through the mechanism of protein vaccine immunologic antigenic competition. We found when PD and OMP26 were injected into the same leg or separate legs of mice, so that antigens were immunologically processed at the same or different regional lymph nodes, respectively, antibody levels to PD were significantly lower with same leg vaccination. Different leg vaccination produced PD antibody levels quantitatively similar to vaccination with PD alone. We conclude that mixing PD and OMP26 into a single vaccine formulation requires further formulation studies.
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Affiliation(s)
- Lea V. Michel
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Ravinder Kaur
- Center for Infectious Diseases and ImmunologyRochester General Hospital Research InstituteNYUSA
| | - Michael L. Gleghorn
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Melody Holmquist
- National Technical Institute for the DeafRochester Institute of TechnologyNYUSA
| | - Karin Pryharski
- Center for Infectious Diseases and ImmunologyRochester General Hospital Research InstituteNYUSA
| | - Janai Perdue
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Seth P. Jones
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Niaya Jackson
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Isabelle Pilo
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Anna Kasper
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Natalie Labbe
- School of Chemistry and Materials ScienceRochester Institute of TechnologyNYUSA
| | - Michael Pichichero
- Center for Infectious Diseases and ImmunologyRochester General Hospital Research InstituteNYUSA
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Perdue J, Michel L, Labbe N, Gleghorn M, Jones S. Determining Protein D Antibody Suppression by OMP26. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r2213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Janai Perdue
- ChemistryRochester Institute of TechnologyRochesterNY
| | - Lea Michel
- ChemistryRochester Institute of TechnologyRochesterNY
| | - Natalie Labbe
- ChemistryRochester Institute of TechnologyRochesterNY
| | | | - Seth Jones
- Rochester Institute of TechnologyRochesterNY
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McGinnity G, Perdue J, Labbe N, Kaur R, Holmquist M, Michel L. Probing the potential interactions between two protein vaccine candidates from Nontypeable
Haemophilus influenzae. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r2217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | | | - Lea Michel
- Rochester Institute of TechnologyRochesterNY
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Williams ZE, Labbe N, Cirrincione L, Hasselbeck J, Michel LV, Thurston GM, Mills J. Analysis of Global and Residue‐Specific yB Crystallin Protein Dynamics via NMR Spectroscopy and Dynamic Light Scattering. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.0r743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Labbe N, Michel L, Thurston G, Mills J, Williams Z, Hasselbeck J, Cirrincione L. Elucidating the Effect of Point Mutations on Gamma B Crystallin Protein Interactions. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r2212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Lea Michel
- Rochester Institute of TechnologyRochesterNY
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Hegedus DD, Baron M, Labbe N, Coutu C, Lydiate D, Lui H, Rozwadowski K. A strategy for targeting recombinant proteins to protein storage vacuoles by fusion to Brassica napus napin in napin-depleted seeds. Protein Expr Purif 2014; 95:162-8. [PMID: 24394588 DOI: 10.1016/j.pep.2013.12.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/16/2013] [Accepted: 12/18/2013] [Indexed: 12/29/2022]
Abstract
Seeds are capable of accumulating high levels of seed storage proteins (SSP), as well as heterologous proteins under certain conditions. Arabidopsis thaliana was used to develop a strategy to deplete seeds of an endogenous SSP and then replenish them with the same protein fused to a heterologous protein. In several other studies, competition with endogenous SSP for space and metabolic resources was shown to affect the accumulation of recombinant proteins in seeds. We used RNAi to reduce the expression of the five napin genes and deplete the seeds of this SSP. Targeting a recombinant protein to a vacuole or structure within the seed where it can be protected from cytosolic proteases can also promote its accumulation. To achieve this, a synthetic Brassica napus napin gene (Bn napin) was designed that was both impervious to the A. thaliana napin (At napin) RNAi construct and permitted fusion to a heterologous protein, in this case green fluorescent protein (GFP). GFP was placed in several strategic locations within Bn napin with consideration to maintaining structure, processing sites and possible vacuolar targeting signals. In transgenic A. thaliana plants, GFP was strongly localized to the seed protein storage vacuole in all Bn napin fusion configurations tested, but not when expressed alone. This SSP depletion-replenishment strategy outlined here would be applicable to expression of recombinant proteins in industrial crops that generally have large repertoires of endogenous SSP genes.
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Affiliation(s)
- Dwayne D Hegedus
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada.
| | - Marcus Baron
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Natalie Labbe
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Cathy Coutu
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Derek Lydiate
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Helen Lui
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
| | - Kevin Rozwadowski
- Agriculture and Agri-Food Canada, 107 Science Place, Saskatoon, SK S7N OX2, Canada
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Tannous M, Labbe N, Redmond RW, Mutus B. A photo-activated, protein-based, NO/H2O2 generating system with tumoricidal activity composed of the nitric oxide derivative of apo-metallothionein (thionein-NO) and glucose oxidase. J Photochem Photobiol B 1997; 41:249-54. [PMID: 9447722 DOI: 10.1016/s1011-1344(97)00115-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The S-nitroso derivative of apo-metallothionein (thionein) was prepared by transnitrosation with S-nitrosoglutathione. The thionein-NO thus formed has an absorption maximum at 334 nm. Light-induced NO release from thionein-NO was demonstrated by flash photolysis. This system produces peroxynitrite at neutral pH as evidenced by nitrotyrosine formation. The cytotoxic potential of this protein-based, light-activated NO/H2O2 generating system was demonstrated by exposing human colon adenocarcinoma cells (SW 948) in culture to thionein-NO and glucose oxidase in the presence and absence of light. The cell density of the samples, 72 h subsequent to receiving 1 h of light exposure, decreased by approximately 98%, relative to controls. In comparison, cell density of the samples that were incubated in the presence of catalase and did not receive light treatment, decreased by only approximately 22% after 72 h.
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Affiliation(s)
- M Tannous
- Department of Chemistry and Biochemistry, University of Windsor, Ont., Canada
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