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Van CT, Zdobinsky T, Seebohm G, Nennstiel D, Zerbe O, Scherkenbeck J. Structural Prerequisites for Receptor Binding of Helicokinin I, a Diuretic Insect Neuropeptide fromHelicoverpa zea. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301773] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kaczmarek K, Wojciechowski J, Wolf WM. (2S,4R)-4-Ammonio-5-oxopyrrolidine-2-carboxylate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o831-2. [PMID: 21580659 PMCID: PMC2984054 DOI: 10.1107/s1600536810004277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Accepted: 02/03/2010] [Indexed: 11/11/2022]
Abstract
In the crystal structure of the title compound, C(5)H(8)N(2)O(3), the mol-ecules exist in the zwitterionic form. The pyrrolidine ring adopts an envelope conformation with the unsubstituted endocyclic C atom situated at the flap. The other four endocyclic atoms are coplanar with the exocyclic carbonyl O atom, with an r.m.s. deviation from the mean plane of 0.06 Å. The carboxyl-ate substituent is located axially, while the ammonium group occupies an equatorial position. In the crystal structure, the mol-ecules are linked through N-H⋯O hydrogen bonds, forming a three-dimensional network.
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Taneja-Bageshwar S, Strey A, Kaczmarek K, Zabrocki J, Pietrantonio PV, Nachman RJ. Comparison of insect kinin analogs with cis-peptide bond, type VI-turn motifs identifies optimal stereochemistry for interaction with a recombinant arthropod kinin receptor from the southern cattle tick Boophilus microplus. Peptides 2008; 29:295-301. [PMID: 18192082 DOI: 10.1016/j.peptides.2007.09.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2007] [Accepted: 09/05/2007] [Indexed: 11/28/2022]
Abstract
The multifunctional 'insect kinins' share the evolutionarily conserved C-terminal pentapeptide motif Phe-X1-X2-Trp-Gly-NH2, where X1=His, Asn, Ser, or Tyr and X2=Ser, Pro, or Ala; and are associated with the regulation of diuresis in a variety of species of insects. We previously reported the functional expression of a southern cattle tick (Boophilus microplus) G protein-coupled receptor that is activated by insect kinins. Four different stereochemical variants of each of the 4-aminopyroglutamic acid (APy) and tetrazole moieties, mimics of a cis-peptide bond, type VI beta-turn in insect kinins were now evaluated on the expressed tick receptor using a calcium bioluminescence plate assay. This study represents the first investigation of the interaction of restricted-conformation analogs incorporating components that mimic specific conformations and/or peptide bond orientations in an expressed arthropod neuropeptide receptor. Analog Ac-RF[APy]WGa (2R,4S) was at least 10-fold more active than the other analogs, thus identifying the optimal stereochemistry for tick receptor interaction. The optimal stereochemistry for the tetrazole insect kinin analogs in the tick receptor assay was identified as (D,L). The APy is superior to the tetrazole as a scaffold for the design of mimetic insect kinin analogs. These biostable analogs provide new tools for arthropod endocrinologists and potential leads in the development of selective, environmentally friendly arthropod pest control agents capable of disrupting insect kinin regulated processes.
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Affiliation(s)
- S Taneja-Bageshwar
- Department of Entomology, Texas A&M University, College Station, TX 77843, USA
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Sobolewski D, Prahl A, Derdowska I, Slaninová J, Kaczmarek K, Zabrocki J, Lammek B. Analogs of arginine vasopressin modified in theN-terminal part of the molecule with a conformationally constrainedcis-peptide bond motif. J Pept Sci 2007; 13:128-32. [PMID: 17146804 DOI: 10.1002/psc.824] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The present work is part of our studies aimed at clarifying the influence of steric constraints in the N-terminal part of arginine vasopressin (AVP) and its analogs on the pharmacological activity of the resulting peptides. We describe the synthesis of eight new analogs of AVP or [3-mercaptopropionic acid (Mpa)]AVP (dAVP) substituted at positions 2 and 3 or 3 and 4 with two diastereomers of 4-aminopyroglutamic acid. The steric constraints provided by this modification turned out, however, so strong that all the peptides were inactive in all of the bioassays (pressor, antidiuretic and uterotonic tests).
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Affiliation(s)
- Dariusz Sobolewski
- Faculty of Chemistry, University of Gdańsk, Sobieskiego 18, 80-952 Gdańsk, Poland.
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Kaczmarek K, Williams HJ, Coast GM, Scott AI, Zabrocki J, Nachman RJ. Comparison of insect kinin analogs withcis-peptide bond motif 4-aminopyroglutamate identifies optimal stereochemistry for diuretic activity. Biopolymers 2007; 88:1-7. [PMID: 17054115 DOI: 10.1002/bip.20613] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The insect kinins are present in a wide variety of insects and function as potent diuretic peptides, though they are subject to rapid degradation by internal peptidases. Insect kinin analogs incorporating stereochemical variants of (2S,4S)-4-aminopyroglutamate (APy), a cis-peptide bond motif, demonstrate significant activity in a cricket diuretic assay. Insect kinin analogs containing (2R,4R)-APy, (2S,4R)-APy and (2S,4S)-APy are essentially equipotent on an insect diuretic assay, with EC(50) values of about 10(-7)M, whereas the (2R,4S)-APy analog is at least 10-fold more potent (EC(50) = 7 x 10(-9)M). Conformational studies in aqueous solution indicate that the (2R,4S)-APy analog is considerably more flexible than the other three variants, which may explain its greater potency. The work identifies the optimal stereochemistry for the APy scaffold with which to design biostable, peptidomimetic analogs with the potential to disrupt critical insect kinin-regulated processes in insects.
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Affiliation(s)
- Krzysztof Kaczmarek
- Areawide Pest Management Research Unit, Southern Plains Agricultural Research Center, ARS, U.S. Department of Agriculture, College Station, TX 77845, USA
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Meng HY, Thomas KM, Lee AE, Zondlo NJ. Effects of i and i+3 residue identity on cis-trans isomerism of the aromatic(i+1)-prolyl(i+2) amide bond: implications for type VI beta-turn formation. Biopolymers 2006; 84:192-204. [PMID: 16208767 DOI: 10.1002/bip.20382] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Cis-trans isomerization of amide bonds plays critical roles in protein molecular recognition, protein folding, protein misfolding, and disease. Aromatic-proline sequences are particularly prone to exhibit cis amide bonds. The roles of residues adjacent to a tyrosine-proline residue pair on cis-trans isomerism were examined. A short series of peptides XYPZ was synthesized and cis-trans isomerism was analyzed. Based on these initial studies, a series of peptides XYPN, X = all 20 canonical amino acids, was synthesized and analyzed by NMR for i residue effects on cis-trans isomerization. The following effects were observed: (a) aromatic residues immediately preceding Tyr-Pro disfavor cis amide bonds, with K(trans/cis)= 5.7-8.0, W > Y > F; (b) proline residues preceding Tyr-Pro lead to multiple species, exhibiting cis-trans isomerization of either or both X-Pro amide bonds; and (c) other residues exhibit similar values of K(trans/cis) (= 2.9-4.2), with Thr and protonated His exhibiting the highest fraction cis. beta-Branched and short polar residues were somewhat more favorable in stabilizing the cis conformation. Phosphorylation of serine at the i position modestly increases the stability of the cis conformer. In addition, the effect of the i+3 residue was examined in a limited series of peptides TYPZ. NMR data indicated that aromatic residues, Pro, Asn, Ala, and Val at the i+3 residue all favor cis amide bonds, with aromatic residues and Asn favoring more compact phi at Tyr(cis) and Ala and Pro favoring more extended phi at Tyr(cis). D-Alanine at the i+3 position particularly disfavors cis amide bonds.
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Affiliation(s)
- Hai Yun Meng
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
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Bentz EL, Goswami R, Moloney MG, Westaway SM. Stereoselective synthesis of conformationally constrained ω-amino acid analogues from pyroglutamic acid. Org Biomol Chem 2005; 3:2872-82. [PMID: 16032366 DOI: 10.1039/b503994k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bicyclic lactams derived from pyroglutamic acid provide a useful scaffold for synthesis of conformationally restricted analogues of lysine, ornithine and glutamine, as well as an Ala-Ala dipeptide analogue. Amino alcohol and carboxylic acid derivatives are accessible from a common intermediate. In this strategy, the bicyclic lactam system not only controls, but also facilitates the determination of the stereochemistry of the synthetic intermediates.
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Affiliation(s)
- Emilie L Bentz
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, UK
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Nachman RJ, Kaczmarek K, Williams HJ, Coast GM, Zabrocki J. An active insect kinin analog with 4-aminopyroglutamate, a novelcis-peptide bond, type VI ?-turn motif. Biopolymers 2004; 75:412-9. [PMID: 15457492 DOI: 10.1002/bip.20155] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The insect kinins are potent diuretic peptides that preferentially form a cis-Pro, type VI beta-turn. An insect kinin analog containing (2S,4S)-4-aminopyroglutamate, a novel cis-peptide bond, type VI beta-turn motif, demonstrates significant activity in the physiological range in a cricket diuretic assay. This is the first instance of a 4-aminopyroglutamate analog of a peptide with a preference for a type VI turn that demonstrates significant bioactivity. The results provide further confirmatory evidence for the active conformation of the insect kinins, and a new scaffold with which to design biostable, peptidomimetic analogs capable of disrupting critical insect kinin-regulated processes in insects.
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Affiliation(s)
- Ronald J Nachman
- Areawide Pest Management Research Unit, Southern Plains Agricultural Research Center, ARS, U.S. Department of Agriculture, 2881 F/B Rd., College Station, TX 77845, USA.
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Templated scaffolds of cis- and trans-tetrahydrofuran γ-amino acids: γ-azido-β-hydroxy-tetrahydrofuran-2-carboxylates from pentono-δ-lactones. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01415-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Luppi G, Lanci D, Trigari V, Garavelli M, Garelli A, Tomasini C. Development and conformational analysis of a pseudoproline-containing turn mimic. J Org Chem 2003; 68:1982-93. [PMID: 12608820 DOI: 10.1021/jo026233l] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The liquid-phase synthesis and the conformational analysis of a small library of fully protected tetramers containing L-pyroglutamic acid (L-pGlu), (4S,5R)-4-methyl-5-carboxybenzyloxazolidin-2-one (L-Oxd), or (4R,5S)-4-methyl-5-carboxybenzyloxazolidin-2-one (D-Oxd) as residue i + 1 are reported to test the tendency of these oligomers to assume a -hairpin conformation. The most promising molecule is Boc-L-Val-D-Oxd-Gly-L-Ala-OBn, which assumes a preferential -turn conformation in CDCl3, as shown by IR and 1H NMR analysis. These findings have been confirmed by DFT calculations, which provide an interpretation for the available experimental data and agree with the reported observations.
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Affiliation(s)
- Gianluigi Luppi
- Dipartimento di Chimica G. Ciamician, Alma Mater Studiorum, Università di Bologna, Via Selmi 2, I-40126 Bologna, Italy
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Pyroglutamic acid as a pseudoproline moiety: a facile method for its introduction into polypeptide chains. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)00981-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Crisma M, Moretto A, Toniolo C, Kaczmarek K, Zabrocki J. First Rigid Peptide Foldamers with an Alternating Cis−Trans Amide Sequence. An Oligomeric Building Block for the Construction of New Helices, Large-Ring Cyclic Correlates, and Nanotubes. Macromolecules 2001. [DOI: 10.1021/ma010368w] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marco Crisma
- Biopolymer Research Center, CNR, Department of Organic Chemistry, University of Padova, 35131 Padova, Italy; and Institute of Organic Chemistry, Technical University of Lodz, 90-543 Lodz, 40 Poland
| | - Alessandro Moretto
- Biopolymer Research Center, CNR, Department of Organic Chemistry, University of Padova, 35131 Padova, Italy; and Institute of Organic Chemistry, Technical University of Lodz, 90-543 Lodz, 40 Poland
| | - Claudio Toniolo
- Biopolymer Research Center, CNR, Department of Organic Chemistry, University of Padova, 35131 Padova, Italy; and Institute of Organic Chemistry, Technical University of Lodz, 90-543 Lodz, 40 Poland
| | - Krzysztof Kaczmarek
- Biopolymer Research Center, CNR, Department of Organic Chemistry, University of Padova, 35131 Padova, Italy; and Institute of Organic Chemistry, Technical University of Lodz, 90-543 Lodz, 40 Poland
| | - Janusz Zabrocki
- Biopolymer Research Center, CNR, Department of Organic Chemistry, University of Padova, 35131 Padova, Italy; and Institute of Organic Chemistry, Technical University of Lodz, 90-543 Lodz, 40 Poland
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Nadin A, Derrer S, McGeary RP, Goodman JM, Holmes AB, Raithby PR. Medium ring lactams in molecular recognition. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 1996. [DOI: 10.1016/0928-4931(95)00130-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Fobian YM, d'Avignon D, Moeller KD. New routes to conformationally restricted peptide building blocks: a convenient preparation of bicyclic piperazinone derivatives. Bioorg Med Chem Lett 1996. [DOI: 10.1016/0960-894x(96)00019-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Dumas JP, Paul Germanas J. Design, synthesis and evaluation of a novel bicyclic lactam as a gly-pro type vi beta-turn mimic. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)76740-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Peptidomimetics for Receptor Ligands?Discovery, Development, and Medical Perspectives. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/anie.199312441] [Citation(s) in RCA: 675] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Giannis A, Kolter T. Peptidmimetica für Rezeptorliganden – Entdeckung, Entwicklung und medizinische Perspektiven. Angew Chem Int Ed Engl 1993. [DOI: 10.1002/ange.19931050905] [Citation(s) in RCA: 134] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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