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Conlon JM, Guilhaudis L, Attoub S, Coquet L, Leprince J, Jouenne T, Mechkarska M. Purification, Conformational Analysis and Cytotoxic Activities of Host-Defense Peptides from the Giant Gladiator Treefrog Boana boans (Hylidae: Hylinae). Antibiotics (Basel) 2023; 12:1102. [PMID: 37508198 PMCID: PMC10376367 DOI: 10.3390/antibiotics12071102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
Frogs from the extensive amphibian family Hylidae are a rich source of peptides with therapeutic potential. Peptidomic analysis of norepinephrine-stimulated skin secretions from the Giant Gladiator Treefrog Boana boans (Hylidae: Hylinae) collected in Trinidad led to the isolation and structural characterization of five host-defense peptides with limited structural similarity to figainin 2 and picturin peptides from other frog species belonging to the genus Boana. In addition, the skin secretions contained high concentrations of tryptophyllin-BN (WRPFPFL) in both C-terminally α-amidated and non-amidated forms. Figainin 2BN (FLGVALKLGKVLG KALLPLASSLLHSQ) and picturin 1BN (GIFKDTLKKVVAAVLTTVADNIHPK) adopt α-helical conformations in trifluroethanol-water mixtures and in the presence of cell membrane models (sodium dodecylsulfate and dodecylphosphocholine micelles). The CD data also indicate contributions from turn structures. Both peptides and picturin 2BN (GLMDMLKKVGKVALT VAKSALLP) inhibited the growth of clinically relevant Gram-negative and Gram-positive bacteria with MIC values in the range 7.8-62.5 µM. Figainin 2BN was potently cytotoxic to A549, MDA-MB-231 and HT-29 human tumor-derived cells (LC50 = 7-14 µM) but displayed comparable potency against non-neoplastic HUVEC cells (LC50 = 15 µM) indicative of lack of selectivity for cancer cells.
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Affiliation(s)
- J Michael Conlon
- Diabetes Research Centre, School of Biomedical Sciences, University of Ulster, Coleraine BT52 1SA, UK
| | - Laure Guilhaudis
- Laboratoire COBRA (UMR 6014 & FR 3038), UNIROUEN, INSA de Rouen, CNRS, Université Rouen Normandie, 76000 Rouen, France
| | - Samir Attoub
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain 17666, United Arab Emirates
| | - Laurent Coquet
- CNRS UAR2026 HeRacLeS-PISSARO, CNRS UMR 6270 PBS, Université Rouen Normandie, 76821 Mont-Saint-Aignan, France
| | - Jérôme Leprince
- Inserm U1239, PRIMACEN, Institute for Research and Innovation in Biomedicine (IRIB), Université Rouen Normandie, 76000 Rouen, France
| | - Thierry Jouenne
- CNRS UAR2026 HeRacLeS-PISSARO, CNRS UMR 6270 PBS, Université Rouen Normandie, 76821 Mont-Saint-Aignan, France
| | - Milena Mechkarska
- Department of Life Sciences, Faculty of Science and Technology, St. Augustine Campus, The University of The West Indies, St. Augustine, Trinidad and Tobago
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Tran TTN, Tran DP, Nguyen VC, Tran TDT, Bui TTT, Bowie JH. Antioxidant activities of major tryptophyllin L peptides: A joint investigation of Gaussian-based 3D-QSAR and radical scavenging experiments. J Pept Sci 2021; 27:e3295. [PMID: 33410242 DOI: 10.1002/psc.3295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022]
Abstract
The red tree frog Litoria rubella from Australia has been studied for several decades showing that their dorsal skin glands secrete a number of small peptides containing a Pro-Trp sequence, known as tryptophyllin L peptides. Although peptides from many genera of Australian frogs have been reported to possess a variety of biological activities, the bioactivities of this peptide family have remained to be discovered. In this study, we investigated the antioxidant potency of a number of tryptophyllin L peptides for the first time using a joint statistical and experimental approach in which predictions based on Gaussian three-dimensional quantitative structure-activity relationship (3D-QSAR) models were employed to guide an in vitro experimental investigation. Two tryptophyllin tripeptides P-W-L (OH) and P-W-L (NH2 ) were predicted to have the Trolox equivalent antioxidant capacity (TEAC) values of 0.80 and 0.87 μM Trolox/μM peptide, respectively. With those promising results, antioxidant capabilities of five tryptophyllin L peptides with the common core Pro-Trp-Leu were synthesized and subjected to 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferric reducing ability of plasma (FRAP) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radical cation (ABTS˙+ ) radical scavenging assays. The tests indicated that all the tested tryptophyllin L peptides, noticeably S-P-W-L (OH) and F-P-W-L (NH2 ), are strong ABTS˙+ radical scavengers and moderate scavengers in the other two assays. The results, thus, suggested that the tryptophyllin L peptides are likely to be a part of the skin antioxidant system helping the frog to cope with drastic change in oxygen exposure and humidity, as they inhabit over a large area of Australia with a wide climate variation.
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Affiliation(s)
- Thi Thanh Nha Tran
- Faculty of Chemical Engineering, Industrial University of HoChiMinh City, 12 Nguyen Van Bao, Ho Chi Minh, 700000, Vietnam
| | - Dinh Phien Tran
- Department of Chemistry and Environment, Vietnam-Russia Tropical Centre, 63 Nguyen Van Huyen, Nghia Do, Cau Giay, Ha Noi, 11307, Vietnam
| | - Van Cuong Nguyen
- Faculty of Chemical Engineering, Industrial University of HoChiMinh City, 12 Nguyen Van Bao, Ho Chi Minh, 700000, Vietnam
| | - Thi Dieu Thuan Tran
- Faculty of Chemical Engineering, Industrial University of HoChiMinh City, 12 Nguyen Van Bao, Ho Chi Minh, 700000, Vietnam
| | | | - John Hamilton Bowie
- Faculty of Science, The University of Adelaide, Adelaide, South Australia, 5005, Australia
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Chen WF, Huang SY, Liao CY, Sung CS, Chen JY, Wen ZH. The use of the antimicrobial peptide piscidin (PCD)-1 as a novel anti-nociceptive agent. Biomaterials 2015; 53:1-11. [PMID: 25890701 DOI: 10.1016/j.biomaterials.2015.02.069] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 02/10/2015] [Accepted: 02/15/2015] [Indexed: 02/09/2023]
Abstract
The antimicrobial peptide piscidin (PCD)-1 has been reported to have antibacterial and immunomodulatory functions. Here, we investigated the anti-neuropathic properties of PCD-1, in order to determine its potential as a compound to alleviate pain. Treatment with PCD-1 suppressed the inflammatory proteins COX-2 and iNOS in murine macrophage (RAW264.7) and microglial (BV2) cell lines stimulated by lipopolysaccharide (LPS). For studies of the effect of PCD-1 in vivo, mononeuropathy in rats was induced by chronic constriction injury (CCI), and the resulting anti-nociceptive behaviors were compared between CCI controls and CCI rats given intrathecal injections of PCD-1. Much like gabapentin, PCD-1 exerts anti-nociceptive effects against thermal hyperalgesia, with a median effective dose (ED50) of 9.5 μg in CCI rats. In CCI rats, PCD-1 exerted effects against mechanical and cold allodynia, thermal hyperalgesia, and weight-bearing deficits. Furthermore, CCI-mediated activation of microglia and astrocytes in the dorsal horn of the lumbar spinal cord were decreased by PCD-1. In addition, PCD-1 suppressed up-regulation of interleukin-1β (IL-1β) and phosphorylated mammalian target of rapamycin (phospho-mTOR) in CCI rats. Finally, CCI-induced down-regulation of transforming growth factor-β1 (TGF-β1) in rats was attenuated by injection of PCD-1. Taken together, the present findings demonstrate that the marine antimicrobial peptide PCD-1 has anti-nociceptive effects, and thus may have potential for development as an alternative pain-alleviating agent.
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Affiliation(s)
- Wu-Fu Chen
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Ta Pei Rd, Kaohsiung 833, Taiwan; Center for Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Ta Pei Rd, Kaohsiung 833, Taiwan
| | - Shi-Ying Huang
- Center for Neuroscience, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan
| | - Chang-Yi Liao
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan
| | - Chun-Sung Sung
- Department of Anesthesiology, Taipei Veterans General Hospital, 201 Sec 2, Shih-Pai Rd, Taipei 112, Taiwan; School of Medicine, National Yang-Ming University, 155 Sec 2, Li-Nong St, Taipei 112, Taiwan
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10 Dahuen Rd, Jiaushi, Ilan 262, Taiwan.
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan; Marine Biomedical Laboratory and Center for Translational Biopharmaceuticals, Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan.
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Xu X, Lai R. The chemistry and biological activities of peptides from amphibian skin secretions. Chem Rev 2015; 115:1760-846. [PMID: 25594509 DOI: 10.1021/cr4006704] [Citation(s) in RCA: 220] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xueqing Xu
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology , Kunming 650223, Yunnan, China
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König E, Bininda-Emonds ORP, Shaw C. The diversity and evolution of anuran skin peptides. Peptides 2015; 63:96-117. [PMID: 25464160 DOI: 10.1016/j.peptides.2014.11.003] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 11/13/2014] [Accepted: 11/14/2014] [Indexed: 02/06/2023]
Abstract
Amphibians exhibit various, characteristic adaptations related to their "incomplete" shift from the aquatic to the terrestrial habitat. In particular, the integument was subject to a number of specialized modifications during the evolution of these animals. In this review, we place special emphasis on endogenous host-defence skin peptides from the cuteanous granular glands anuran amphibians (frogs and toads). The overview on the two broad groups of neuroactive and antimicrobial peptides (AMPs) goes beyond a simple itemization in that we provide a new perspective into the evolution and function of anuran AMPs. Briefly, these cationic, amphipathic and α-helical peptides are traditionally viewed as being part of the innate immune system, protecting the moist skin against invading microorganisms through their cytolytic action. However, the complete record of anuran species investigated to date suggests that AMPs are distributed sporadically (i.e., non-universally) across Anura. Together with the intriguing observation that virtually all anurans known to produce neuropeptides in their granular glands also co-secrete cytolytic peptides, we call the traditional role for AMPs as being purely antimicrobial into question and present an alternative scenario. We hypothesize AMPs to assist neuroactive peptides in their antipredator role through their cytolytic action increasing the delivery of the latter to the endocrine and nervous system of the predator. Thus, AMPs are more accurately viewed as cytolysins and their contribution to the immune system is better regarded as an accessory benefit.
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Affiliation(s)
- Enrico König
- AG Systematik und Evolutionsbiologie, IBU - Fakultät V, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky Strasse 9-11, 26129 Oldenburg, Germany.
| | - Olaf R P Bininda-Emonds
- AG Systematik und Evolutionsbiologie, IBU - Fakultät V, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky Strasse 9-11, 26129 Oldenburg, Germany
| | - Chris Shaw
- School of Pharmacy, Medical Biology Center, Queen's University, 97 Lisburn Road, Belfast BT9 7BL, Northern Ireland, UK
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Skin Gland Morphology and Secretory Peptides in NaturalizedLitoriaSpecies in New Zealand. J HERPETOL 2013. [DOI: 10.1670/12-246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bowie JH, Separovic F, Tyler MJ. Host-defense peptides of Australian anurans. Part 2. Structure, activity, mechanism of action, and evolutionary significance. Peptides 2012; 37:174-88. [PMID: 22771617 DOI: 10.1016/j.peptides.2012.06.017] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 06/26/2012] [Accepted: 06/26/2012] [Indexed: 01/01/2023]
Abstract
A previous review summarized research prior to 2004 carried out on the bioactive host-defense peptides contained in the skin secretions of Australian anurans (frogs and toads). This review covers the extension of that research from 2004 to 2012, and includes membrane-active peptides (including antibacterial, anticancer, antifungal and antiviral peptides) together with the mechanisms by which these peptides interact with model membranes, peptides that may be classified as "neuropeptides" (including smooth muscle active peptides, opioids and immunomodulators) and peptides which inhibit the formation of nitric oxide from neuronal nitric oxide synthase. The review discusses the outcome of cDNA sequencing of signal-spacer-active peptides from an evolutionary viewpoint, and also lists those peptides for which activities have not been found to this time.
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Affiliation(s)
- John H Bowie
- Department of Chemistry, School of Chemistry and Physics, The University of Adelaide, South Australia 5005, Australia.
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Gupta K, Kumar M, Chandrashekara K, Krishnan KS, Balaram P. Combined electron transfer dissociation-collision-induced dissociation fragmentation in the mass spectrometric distinction of leucine, isoleucine, and hydroxyproline residues in Peptide natural products. J Proteome Res 2011; 11:515-22. [PMID: 22111579 DOI: 10.1021/pr200091v] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Distinctions between isobaric residues have been a major challenge in mass spectrometric peptide sequencing. Here, we propose a methodology for distinction among isobaric leucine, isoleucine, and hydroxyproline, a commonly found post-translationally modified amino acid with a nominal mass of 113 Da, through a combined electron transfer dissociation-collision-induced dissociation approach. While the absence of c and z(•) ions, corresponding to the Yyy-Xxx (Xxx = Leu, Ile, or Hyp) segment, is indicative of the presence of hydroxyproline, loss of isopropyl (Δm = 43 Da) or ethyl radicals (Δm = 29 Da), through collisional activation of z radical ions, are characteristic of leucine or isoleucine, respectively. Radical migration processes permit distinctions even in cases where the specific z(•) ions, corresponding to the Yyy-Leu or -Ile segments, are absent or of low intensity. This tandem mass spectrometric (MS(n)) method has been successfully implemented in a liquid chromatography-MS(n) platform to determine the identity of 23 different isobaric residues from a mixture of five different peptides. The approach is convenient for distinction of isobaric residues from any crude peptide mixture, typically encountered in natural peptide libraries or proteomic analysis.
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Affiliation(s)
- Kallol Gupta
- Molecular Biophysics Unit, Indian Institute of Science , Bangalore 560012, India
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Ellis-Steinborner ST, Scanlon D, Musgrave IF, Tran TTN, Hack S, Wang T, Abell AD, Tyler MJ, Bowie JH. An unusual kynurenine-containing opioid tetrapeptide from the skin gland secretion of the Australian red tree frog Litoria rubella. Sequence determination by electrospray mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:1735-1740. [PMID: 21598333 DOI: 10.1002/rcm.5041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The Kyn-containing peptide FP-Kyn-L(NH(2)) is an unusual minor component of the skin peptide profile of the Australian red tree frog Litoria rubella collected from an area within a 20 kilometre radius of Alice Springs in central Australia. The structure was determined by electrospray mass spectrometry and synthesis. The major component of the skin secretion is the analogous tryptophyllin peptide FPWL(NH(2)). Both peptides show opioid activity at 10(-7) M, and are likely to act via the μ opioid receptor.
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Rash LD, Morales RA, Vink S, Alewood PF. De novo sequencing of peptides from the parotid secretion of the cane toad, Bufo marinus (Rhinella marina). Toxicon 2011; 57:208-16. [DOI: 10.1016/j.toxicon.2010.11.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 11/12/2010] [Accepted: 11/22/2010] [Indexed: 12/22/2022]
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Jackway RJ, Pukala TL, Donnellan SC, Sherman PJ, Tyler MJ, Bowie JH. Skin peptide and cDNA profiling of Australian anurans: genus and species identification and evolutionary trends. Peptides 2011; 32:161-72. [PMID: 20932866 DOI: 10.1016/j.peptides.2010.09.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 09/23/2010] [Accepted: 09/23/2010] [Indexed: 11/29/2022]
Abstract
Host defense peptides of 35 species of Australian frogs from the hylids Cyclorana and Litoria, and the myobatrachids Crinia, Limnodynastes and Uperoleia have been identified. The biological activities of the majority of these peptides have been determined and include hormones, neuropeptides, opioids, immunomodulators, membrane active peptides [including antimicrobial, anticancer, antiviral (enveloped viruses like HIV and Herpes) and antifungal peptides], neuronal nitric oxide synthase inhibitors, pheromones and individual peptides with other specific activities. The host defense peptide skin profile can be diagnostic at both the species and higher taxonomic levels; for example, species of Crinia, Litoria and Uperoleia each produce quite different types of peptides. Species of Cyclorana and Limnodynastes are more difficult to characterize by skin peptides alone: species of both genera produce similar peptides with no apparent activity. The skin peptide profiles of frogs from the genera Crinia, Litoria and Uperoleia may be used together with morphological and cognate methods, to differentiate between sub-species and even different population clusters of the same species. Nucleotide sequencing of cDNAs of precursors (pre-pro peptides) of bioactive peptides from the skin glands of various species of the genus Litoria show that the majority of these peptides originated from a single ancestor gene before the break away of Australia from Gondwana. The exceptions are the caerulein neuropeptides {e.g. caerulein [pEQDY(SO(3)H)TGWMDF(NH(2))]} which have a different origin to that of other Litoria peptides. Disulfide containing peptides from skin glands of species of Crinia show a different evolutionary route to peptides from species of Litoria.
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Affiliation(s)
- Rebecca J Jackway
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
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Langsdorf M, Ghassempour A, Römpp A, Spengler B. Characterization of a peptide family from the skin secretion of the Middle East tree frog Hyla savignyi by composition-based de novo sequencing. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2010; 24:2885-2899. [PMID: 20857449 DOI: 10.1002/rcm.4717] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A new tryptophyllin-like peptide family was found in the skin secretion of the tree frog Hyla savignyi. Peptides were characterized by database-independent sequencing strategies and specific ion fragmentation features were investigated. Skin secretions from specimens of Hyla savignyi were collected by mild electrical stimulation. Peptides were separated by reversed-phase nano-high-performance liquid chromatography (nanoHPLC) and mass spectra were acquired online by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS). Peptides were characterized by manual de novo sequencing and by composition-based sequencing (CBS), appearing mostly as C-terminal free acids and as their acid amide analogs. Amide peptides yielded lower intensities of y-type ions after collision-induced dissociation (CID) than their acid analogs. A mechanism of internal b-ion formation (positive ion mode) and of CO(2) elimination (negative ion mode) is proposed. We also exemplified phenomena such as the proline effect and formation of non-direct sequence ions after sequence rearrangements. The occurrence of rearrangement products, of internal ions and of the proline effect made the CID spectra highly complex. CBS analysis nevertheless resulted in successful and highly reliable sequence analysis.
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Affiliation(s)
- Markus Langsdorf
- Institute of Inorganic and Analytical Chemistry, Justus Liebig University, Giessen, Germany
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