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Chio TI, Demestichas BR, Brems BM, Bane SL, Tumey LN. Expanding the Versatility of Microbial Transglutaminase Using α‐Effect Nucleophiles as Noncanonical Substrates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001830] [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)
- Tak Ian Chio
- Department of Chemistry Binghamton University State University of New York 25 Murray Hill Rd Vestal NY 13850 USA
| | - Breanna R. Demestichas
- Department of Chemistry Binghamton University State University of New York 25 Murray Hill Rd Vestal NY 13850 USA
| | - Brittany M. Brems
- Department of Pharmaceutical Sciences Binghamton University State University of New York 96 Corliss Ave Johnson City NY 13790 USA
| | - Susan L. Bane
- Department of Chemistry Binghamton University State University of New York 25 Murray Hill Rd Vestal NY 13850 USA
| | - L. Nathan Tumey
- Department of Pharmaceutical Sciences Binghamton University State University of New York 96 Corliss Ave Johnson City NY 13790 USA
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2
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Chio TI, Demestichas BR, Brems BM, Bane SL, Tumey LN. Expanding the Versatility of Microbial Transglutaminase Using α-Effect Nucleophiles as Noncanonical Substrates. Angew Chem Int Ed Engl 2020; 59:13814-13820. [PMID: 32268004 DOI: 10.1002/anie.202001830] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/03/2020] [Indexed: 12/12/2022]
Abstract
The substrate promiscuity of microbial transglutaminase (mTG) has been exploited in various applications in biotechnology, in particular for the attachment of alkyl amines to glutamine-containing peptides and proteins. Here, we expand the substrate repertoire to include hydrazines, hydrazides, and alkoxyamines, resulting in the formation of isopeptide bonds with varied susceptibilities to hydrolysis or exchange by mTG. Furthermore, we demonstrate that simple unsubstituted hydrazine and dihydrazides can be used to install reactive hydrazide handles onto the side chain of internal glutamine residues. The distinct hydrazide handles can be further coupled with carbonyls, including ortho-carbonylphenylboronic acids, to form site-specific and functional bioconjugates with tunable hydrolytic stability. The extension of the substrate scope of mTG beyond canonical amines thus substantially broadens the versatility of the enzyme, providing a new approach to facilitate novel applications.
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Affiliation(s)
- Tak Ian Chio
- Department of Chemistry, Binghamton University, State University of New York, 25 Murray Hill Rd, Vestal, NY, 13850, USA
| | - Breanna R Demestichas
- Department of Chemistry, Binghamton University, State University of New York, 25 Murray Hill Rd, Vestal, NY, 13850, USA
| | - Brittany M Brems
- Department of Pharmaceutical Sciences, Binghamton University, State University of New York, 96 Corliss Ave, Johnson City, NY, 13790, USA
| | - Susan L Bane
- Department of Chemistry, Binghamton University, State University of New York, 25 Murray Hill Rd, Vestal, NY, 13850, USA
| | - L Nathan Tumey
- Department of Pharmaceutical Sciences, Binghamton University, State University of New York, 96 Corliss Ave, Johnson City, NY, 13790, USA
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Abstract
The Ugi four-component reaction (U-4CR) with N-hydroxyimides as a novel carboxylic acid isostere has been reported. This reaction provides straightforward access to α-hydrazino amides. A broad range of aldehydes, amines, isocyanides and N-hydroxyimides were employed to give products in moderate to high yields. This reaction displays N-N bond formation by cyclic imide migration in the Ugi reaction. Thus, N-hydroxyimide is added as a new acid component in the Ugi reaction and broadens the scaffold diversity.
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Affiliation(s)
- Ajay L Chandgude
- Department of Drug Design, University of Groningen , Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Alexander Dömling
- Department of Drug Design, University of Groningen , Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
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4
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Barreto ADFS, Dos Santos VA, Andrade CKZ. Synthesis of acylhydrazino-peptomers, a new class of peptidomimetics, by consecutive Ugi and hydrazino-Ugi reactions. Beilstein J Org Chem 2016; 12:2865-2872. [PMID: 28144359 PMCID: PMC5238544 DOI: 10.3762/bjoc.12.285] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/21/2016] [Indexed: 12/25/2022] Open
Abstract
Herein we describe a versatile approach for the synthesis of acylhydrazino-peptomers, a new class of peptidomimetics. The key idea in this approach is based on a simple route using a one-pot hydrazino-Ugi four-component reaction followed by a hydrazinolysis or hydrolysis reaction and subsequent hydrazino-Ugi reaction or classical Ugi reaction for the construction of acyclic acylhydrazino-peptomers. The consecutive multicomponent reactions produced a variety of acylhydrazino-peptomers in moderate to excellent yields (47–90%). These compounds are multifunctional intermediates that can be further functionalized to obtain new peptidomimetics with potential biological activity.
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Affiliation(s)
- Angélica de Fátima S Barreto
- Laboratório de Química Metodológica e Orgânica Sintética, Instituto de Química, Universidade de Brasília, CP 4478, 70910-970 Brasília-DF, Brazil
| | - Veronica Alves Dos Santos
- Laboratório de Química Metodológica e Orgânica Sintética, Instituto de Química, Universidade de Brasília, CP 4478, 70910-970 Brasília-DF, Brazil
| | - Carlos Kleber Z Andrade
- Laboratório de Química Metodológica e Orgânica Sintética, Instituto de Química, Universidade de Brasília, CP 4478, 70910-970 Brasília-DF, Brazil
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5
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Suć J, Jerić I. Synthesis of hybrid hydrazino peptides: protected vs unprotected chiral α-hydrazino acids. SPRINGERPLUS 2015; 4:507. [PMID: 26405627 PMCID: PMC4573739 DOI: 10.1186/s40064-015-1288-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 08/28/2015] [Indexed: 11/30/2022]
Abstract
Peptidomimetics based on hydrazino derivatives of α-amino acids represent an important class of peptidic foldamers with promising biological activities, like protease inhibition and antimicrobial activity. However, the lack of straightforward method for the synthesis of optically pure hydrazino acids and efficient incorporation of hydrazino building blocks into peptide sequence hamper wider exploitation of hydrazino peptidomimetics. Here we described the utility of Nα-benzyl protected and unprotected hydrazino derivatives of natural α-amino acids in synthesis of peptidomimetics. While incorporation of Nα-benzyl-hydrazino acids into peptide chain and deprotection of benzyl moiety proceeded with difficulties, unprotected hydrazino acids allowed fast and simple construction of hybrid peptidomimetics.
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Affiliation(s)
| | | | - Tehshik P. Yoon
- Department of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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7
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Avan I, Hall CD, Katritzky AR. Peptidomimetics via modifications of amino acids and peptide bonds. Chem Soc Rev 2014; 43:3575-94. [DOI: 10.1039/c3cs60384a] [Citation(s) in RCA: 183] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Bordessa A, Keita M, Maréchal X, Formicola L, Lagarde N, Rodrigo J, Bernadat G, Bauvais C, Soulier JL, Dufau L, Milcent T, Crousse B, Reboud-Ravaux M, Ongeri S. α- and β-hydrazino acid-based pseudopeptides inhibit the chymotrypsin-like activity of the eukaryotic 20S proteasome. Eur J Med Chem 2013; 70:505-24. [DOI: 10.1016/j.ejmech.2013.09.059] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 09/23/2013] [Accepted: 09/24/2013] [Indexed: 10/26/2022]
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9
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Altmayer-Henzien A, Declerck V, Merlet D, Baltaze JP, Farjon J, Guillot R, Aitken DJ. Solution State Conformational Preferences of Dipeptides Derived from N-Aminoazetidinecarboxylic Acid: An Assessment of the Hydrazino Turn. J Org Chem 2013; 78:6031-9. [DOI: 10.1021/jo400736t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amandine Altmayer-Henzien
- Laboratoire
de Synthèse Organique et Méthodologie, ‡Laboratoire de RMN en Milieu Orienté, and §Services Communs, ICMMO (UMR CNRS 8182), Université Paris Sud, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Valérie Declerck
- Laboratoire
de Synthèse Organique et Méthodologie, ‡Laboratoire de RMN en Milieu Orienté, and §Services Communs, ICMMO (UMR CNRS 8182), Université Paris Sud, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Denis Merlet
- Laboratoire
de Synthèse Organique et Méthodologie, ‡Laboratoire de RMN en Milieu Orienté, and §Services Communs, ICMMO (UMR CNRS 8182), Université Paris Sud, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Jean-Pierre Baltaze
- Laboratoire
de Synthèse Organique et Méthodologie, ‡Laboratoire de RMN en Milieu Orienté, and §Services Communs, ICMMO (UMR CNRS 8182), Université Paris Sud, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Jonathan Farjon
- Laboratoire
de Synthèse Organique et Méthodologie, ‡Laboratoire de RMN en Milieu Orienté, and §Services Communs, ICMMO (UMR CNRS 8182), Université Paris Sud, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France
| | - Régis Guillot
- Laboratoire
de Synthèse Organique et Méthodologie, ‡Laboratoire de RMN en Milieu Orienté, and §Services Communs, ICMMO (UMR CNRS 8182), Université Paris Sud, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France
| | - David J. Aitken
- Laboratoire
de Synthèse Organique et Méthodologie, ‡Laboratoire de RMN en Milieu Orienté, and §Services Communs, ICMMO (UMR CNRS 8182), Université Paris Sud, 15 Rue Georges Clemenceau, 91405 Orsay cedex, France
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Reactivity of 1-aminoazetidine-2-carboxylic acid during peptide forming procedures: observation of an unusual variant of the hydrazino turn. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.112] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Moussodia RO, Acherar S, Bordessa A, Vanderesse R, Jamart-Grégoire B. An expedient and short synthesis of chiral α-hydrazinoesters: synthesis and conformational analysis of 1:1 [α/α-Nα-hydrazino]mers. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.04.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Matson JB, Stupp SI. Drug release from hydrazone-containing peptide amphiphiles. Chem Commun (Camb) 2011; 47:7962-4. [PMID: 21674107 DOI: 10.1039/c1cc12570b] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Hydrolytically-labile hydrazones in peptide amphiphiles were studied as degradable tethers for release of the drug nabumetone from nanofiber gels. On-resin addition of the novel compound tri-Boc-hydrazido adipic acid to a lysine ε-amine allowed for precise placement of a hydrazide in a peptide sequence.
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Affiliation(s)
- John B Matson
- Institute for BioNanotechnology in Medicine, Northwestern University, Chicago, IL 60611, USA
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Ramesh M, Raju B, Srinivas R, Sureshbabu VV, Narendra N, Vasantha B. Characterization of Nα-Fmoc-protected ureidopeptides by electrospray ionization tandem mass spectrometry (ESI-MS/MS): differentiation of positional isomers. JOURNAL OF MASS SPECTROMETRY : JMS 2010; 45:1461-1472. [PMID: 21053379 DOI: 10.1002/jms.1862] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Four pairs of positional isomers of ureidopeptides, FmocNH-CH(R(1))-ϕ(NH-CO-NH)-CH(R(2))-OY and FmocNH-CH(R(2))-ϕ(NH-CO-NH)-CH(R(1))-OY (Fmoc = [(9-fluorenyl methyl)oxy]carbonyl; R(1) = H, alkyl; R(2) = alkyl, H and Y = CH(3)/H), have been characterized and differentiated by both positive and negative ion electrospray ionization (ESI) ion-trap tandem mass spectrometry (MS/MS). The major fragmentation noticed in MS/MS of all these compounds is due to --N--CH(R)--N--bond cleavage to form the characteristic N- and C-terminus fragment ions. The protonated ureidopeptide acids derived from glycine at the N-terminus form protonated (9H-fluoren-9-yl)methyl carbamate ion at m/z 240 which is absent for the corresponding esters. Another interesting fragmentation noticed in ureidopeptides derived from glycine at the N-terminus is an unusual loss of 61 units from an intermediate fragment ion FmocNH = CH(2) (+) (m/z 252). A mechanism involving an ion-neutral complex and a direct loss of NH(3) and CO(2) is proposed for this process. Whereas ureidopeptides derived from alanine, leucine and phenylalanine at the N-terminus eliminate CO(2) followed by corresponding imine to form (9H-fluoren-9-yl)methyl cation (C(14)H(11) (+)) from FmocNH = CHR(+). In addition, characteristic immonium ions are also observed. The deprotonated ureidopeptide acids dissociate differently from the protonated ureidopeptides. The [M - H](-) ions of ureidopeptide acids undergo a McLafferty-type rearrangement followed by the loss of CO(2) to form an abundant [M - H - Fmoc + H](-) which is absent for protonated ureidopeptides. Thus, the present study provides information on mass spectral characterization of ureidopeptides and distinguishes the positional isomers.
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Affiliation(s)
- M Ramesh
- National Centre for Mass Spectrometry, Indian Institute of Chemical Technology, Hyderabad 500 607, Andhra Pradesh, India
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Hetényi A, Tóth GK, Somlai C, Vass E, Martinek TA, Fülöp F. Stabilisation of Peptide foldamers in an aqueous medium by incorporation of azapeptide building blocks. Chemistry 2009; 15:10736-41. [PMID: 19746464 DOI: 10.1002/chem.200900724] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anasztázia Hetényi
- Institute of Pharmaceutical Chemistry, University of Szeged, 6720 Szeged, Eötvös u. 6, Hungary
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17
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Efficient entry into hydrazinopeptide-like structures via sequential Ugi reactions. Mol Divers 2009; 14:493-9. [PMID: 19902373 DOI: 10.1007/s11030-009-9200-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2009] [Accepted: 10/19/2009] [Indexed: 10/20/2022]
Abstract
Novel types of hydrazinopeptide-like units containing five elements of diversity have been prepared in two steps using sequential Ugi reactions.
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18
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Formicola L, Maréchal X, Basse N, Bouvier-Durand M, Bonnet-Delpon D, Milcent T, Reboud-Ravaux M, Ongeri S. Novel fluorinated pseudopeptides as proteasome inhibitors. Bioorg Med Chem Lett 2009; 19:83-6. [PMID: 19041239 DOI: 10.1016/j.bmcl.2008.11.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 11/02/2008] [Accepted: 11/04/2008] [Indexed: 01/08/2023]
Affiliation(s)
- Lucia Formicola
- Faculté de Pharmacie, Université Paris-Sud 11, UMR-CNRS 8076, Molécules Fluorées et Chimie Médicinale, IFR 141, Châtenay-Malabry cedex, France
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19
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Solid-phase synthesis of hydrazinopeptides in Boc and Fmoc strategies monitored by HR-MAS NMR. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Seo J, Igarashi J, Li H, Martásek P, Roman LJ, Poulos TL, Silverman RB. Structure-based design and synthesis of N(omega)-nitro-L-arginine-containing peptidomimetics as selective inhibitors of neuronal nitric oxide synthase. Displacement of the heme structural water. J Med Chem 2007; 50:2089-99. [PMID: 17425297 PMCID: PMC2562355 DOI: 10.1021/jm061305c] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The neuronal isoform of nitric oxide synthase (nNOS), the enzyme responsible for the production of nitric oxide in the central nervous system, represents an attractive target for the treatment of various neurodegenerative disorders. X-ray crystal structures of complexes of nNOS with two nNOS-selective inhibitors, (4S)-N-{4-amino-5-[(2-aminoethylamino]pentyl}-N'-nitroguanidine (1) and 4-N-(Nomega-nitro-l-argininyl)-trans-4-amino-l-proline amide (2), led to the discovery of a conserved structural water molecule that was hydrogen bonded between the two heme propionates and the inhibitors (Figure 2). On the basis of this observation, we hypothesized that by attaching a hydrogen bond donor group to the amide nitrogen of 2 or to the secondary amine nitrogen of 1, the inhibitor molecules could displace the structural water molecule and obtain a direct interaction with the heme cofactor. To test this hypothesis, peptidomimetic analogues 3-5, which have either an N-hydroxyl (3 and 5) or N-amino (4) donor group, were designed and synthesized. X-ray crystal structures of nNOS with inhibitors 3 and 5 bound verified that the N-hydroxyl group had, indeed, displaced the structural water molecule and provided a direct interaction with the heme propionate moiety (Figures 5 and 6). Surprisingly, in vitro activity assay results indicated that the addition of a hydroxyl group (3) only increased the potency slightly against the neuronal isoform over the parent compound (1). Rationalizations for the small increase in potency are consistent with other changes in the crystal structures.
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Affiliation(s)
- Jiwon Seo
- Department of Chemistry, Department of Biochemistry, Molecular Biology, and Cell Biology, and the Center for Drug Discovery and Chemical Biology, Northwestern University, Evanston, Illinois 60208-3113 USA
| | - Jotato Igarashi
- Departments of Molecular Biology and Biochemistry, Physiology and Biophysics, and Chemistry and Program in Macromolecular Structure, University of California, Irvine, California 92697-3900 USA
| | - Huiying Li
- Departments of Molecular Biology and Biochemistry, Physiology and Biophysics, and Chemistry and Program in Macromolecular Structure, University of California, Irvine, California 92697-3900 USA
| | - Pavel Martásek
- Department of Biochemistry, The University of Texas Health Science Center, San Antonio, Texas 78384-7760 USA
| | - Linda J. Roman
- Department of Biochemistry, The University of Texas Health Science Center, San Antonio, Texas 78384-7760 USA
| | - Thomas L. Poulos
- Departments of Molecular Biology and Biochemistry, Physiology and Biophysics, and Chemistry and Program in Macromolecular Structure, University of California, Irvine, California 92697-3900 USA
| | - Richard B. Silverman
- Department of Chemistry, Department of Biochemistry, Molecular Biology, and Cell Biology, and the Center for Drug Discovery and Chemical Biology, Northwestern University, Evanston, Illinois 60208-3113 USA
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21
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Synthesis of Nα-Z, Nβ-Fmoc or Boc protected α-hydrazinoacids and study of the coupling reaction in solution of Nα-Z-α-hydrazinoesters. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.12.085] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Bernard E, Vanderesse R. Efficient and direct solid phase synthesis of ketomethylenimino and ketomethylenamino peptides. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.09.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Bouillon I, Brosse N, Vanderesse R, Jamart-Grégoire B. Liquid and solid phase syntheses of orthogonally protected α-hydrazinoacid derivatives. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.03.063] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Dugave C, Demange L. Cis-trans isomerization of organic molecules and biomolecules: implications and applications. Chem Rev 2003; 103:2475-532. [PMID: 12848578 DOI: 10.1021/cr0104375] [Citation(s) in RCA: 753] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Christophe Dugave
- CEA/Saclay, Département d'Ingénierie et d'Etudes des Protéines (DIEP), Bâtiment 152, 91191 Gif-sur-Yvette, France.
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25
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Vanderesse R, Thevenet L, Marraud M, Boggetto N, Reboud M, Corbier C. Alpha-aminoxy acids as building blocks for the oxime and hydroxylamine pseudopeptide links. Application to the synthesis of human elastase inhibitors. J Pept Sci 2003; 9:282-99. [PMID: 12803495 DOI: 10.1002/psc.452] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The aminoxy acids NH2-O-C(alpha)HR-CO2H are much more easily obtained in the enantiomerically pure form than the analogous hydrazino acids NH2-NH-C(alpha)HR-CO2H, and it has been shown that the isosteric amidoxy psi[CO-NH-O] and hydrazide psi[CO-NH-NH] amide surrogates Induce two quite similar gamma-like folded structures. An aminoxy acid can also be N-coupled to a peptide aldehyde to give the aldoxime psi[CH = N-O] link or to a peptide ketone to form the ketoxime psi[CR= N-O] link. The former can be further reduced into the hydroxylamine psi[CH2-NH-O] link which gives rise to reduced amidoxy peptides. The structural properties Induced by these amide surrogates were studied, using IR and NMR spectroscopy, paying particular attention to the Z/E-isomerism of the oxime link. In order to investigate their inhibitory potency, the three amide surrogates were introduced in the Pro3-Val4 and Val4-Ala5 position of Z-Ala1-Ala2-Pro3-Val4-Ala5-Ala6-NHiPr, a substrate which is cleaved in the Val4-Ala5 position by human leukocyte elastase (HLE). The [Val4psi[CO-NH-O]Ala5] analogue was still a substrate, while the [Pro3psi[CO-NH-O]Val4] and [Val4psi[CH = N-O]Ala5] pseudopeptides acted as HLE competitive inhibitors.
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Affiliation(s)
- Regis Vanderesse
- LCPM, UMR CNRS-INPL 7568, ENSIC-INPL BP 451, 54001 Nancy, France.
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26
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Solid state and solution conformation of 2-pyridinecarboxylic acid hydrazides: a new structural motif for foldamers. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(02)02881-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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Oguz U, Guilbeau GG, McLaughlin ML. A facile stereospecific synthesis of α-hydrazino esters. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00352-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Sakellariou D, Lesage A, Emsley L. Spectral editing in solid-state NMR using scalar multiple quantum filters. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2001; 151:40-47. [PMID: 11444935 DOI: 10.1006/jmre.2001.2338] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this paper we describe the use of heteronuclear scalar couplings in solid-state NMR in order to generate multiple-quantum filtering (MQF) pulse sequences. These sequences can be used to edit CP/MAS spectra according to carbon multiplicity. Analytic expressions for the intensity of the MQF signals are obtained using the standard product operator formalism. Experiments that demonstrate the technique are shown in powder samples of camphor and a tripeptide.
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Affiliation(s)
- D Sakellariou
- Laboratoire de Stéréochimie et des Interactions Moléculaires, Ecole Normale Superieure de Lyon, 46 Allée d'Italie, Lyon, 69364, France
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Torrini I, Paglialunga Paradisi M, Pagani Zecchini G, Lucente G, Mastropietro G, Spisani S. Bioactive fMLF-OMe analogs containing a N-terminal oximic or formylhydrazonic moiety. THE JOURNAL OF PEPTIDE RESEARCH : OFFICIAL JOURNAL OF THE AMERICAN PEPTIDE SOCIETY 2000; 55:102-9. [PMID: 10784026 DOI: 10.1034/j.1399-3011.2000.00159.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In order to obtain chemotactic peptides with selective bioactivity, a new type of structural modification was introduced at the N-terminal position of HCO-Nle-Leu-Phe-OMe. Two groups of analogs have been synthesized both containing a N-terminal residue of the X=C(R)-CO-type replacing the native HCO-NH-CH(R)-CO-. In particular, the A group of pseudopeptides (2a-d) possesses a N-terminal oximic fragment (X=HO-N) and the B group (3a-d) a formylhydrazone fragment (X=HCO-NH-N). These new ligands have been examined for their capacity to induce chemotaxis and other cellular responses such as superoxide anion production and lysozyme release; although significantly active as chemoattractants they have been found to be practically devoid of secretagog activity, thus exhibiting selective behavior. The adopted chemical modification seems extensible in designing a new class of pseudopeptides (hydrazonopeptides) structurally related to both hydrazinopeptides and peptides containing alpha,beta-unsaturated residues.
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Affiliation(s)
- I Torrini
- Dipartimento di Studi Farmaceutici and Centro di Studio per la Chimica del Farmaco del CNR, Università La Sapienza, Roma, Italy
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Bonnet D, Rommens C, Gras-Masse H, Melnyk O. Chemoselective acylation of hydrazinopeptides: a novel and mild method for the derivatization of peptides with sensitive fatty acids. Tetrahedron Lett 2000. [DOI: 10.1016/s0040-4039(99)02024-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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