512 results on '"Szewczuk, Zbigniew"'
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2. Synthesis and evaluation of dihydro-[1,2,4]triazolo[4,3-a]pyridin-2-ium carboxylates as fixed charge fluorescent derivatization reagents for MEKC and MS proteomic analyses
3. Early detection of active glomerular lesions in dogs and cats using podocin
4. Identyfication of tryptic podocin peptide in the feline urine sediments using LC-MS/MRM method
5. Isobaric duplex based on a combination of 16O/18O enzymatic exchange and labeling with pyrylium salts
6. Cyclic OmpC peptidic epitope conjugated to tetanus toxoid as a potential vaccine candidate against shigellosis
7. SOD-Like Activity of Copper(II) Containing Metallopeptides Branched By 2,3-Diaminopropionic Acid: What the N-Termini Elevate, the C-Terminus Ruins
8. The 5-azoniaspiro[4.4]nonyl group for improved MS peptide analysis: A novel non-fragmenting ionization tag for mass spectrometric sensitive sequencing of peptides
9. Complex formation equilibria of Cu2 + and Zn2 + with Irbesartan and Losartan
10. New ionization tags based on the structure of the 5-azoniaspiro[4.4]nonyl tag for a sensitive peptide sequencing by mass spectrometry
11. Metal coordination and tyrosinase inhibition studies with Kojic-βAla-Kojic
12. A synthesis of new, bi-labeled peptides for quantitative proteomics
13. A new bis-3-hydroxy-4-pyrone as a potential therapeutic iron chelating agent. Effect of connecting and side chains on the complex structures and metal ion selectivity
14. Egg-yolk protein by-product as a source of ACE-inhibitory peptides obtained with using unconventional proteinase from Asian pumpkin (Cucurbita ficifolia)
15. Searching for new aluminium chelating agents: A family of hydroxypyrone ligands
16. Solid-phase synthesis of peptides containing aminoadipic semialdehyde moiety and their cyclisations
17. A family of hydroxypyrone ligands designed and synthesized as iron chelators
18. Synthesis, biological activity and resistance to proteolytic digestion of new cyclic dermorphin/deltorphin analogues
19. Interactions of anti-Parkinson drug benserazide with Zn(II), Cu(II), Fe(II) ions
20. Synthesis, properties and extended MS studies of a new heterometallic [Mn4Ni2]-core oxime-bridged complex
21. Differential zinc and DNA binding by partial peptides of human protamine HP2
22. Facile synthesis of deuterium-labeled denatonium cation and its application in the quantitative analysis of Bitrex by liquid chromatography-mass spectrometry
23. Site-selective solid phase synthesis of carbonylated peptides
24. Comparison of modification sites in glycated crystallin in vitro and in vivo
25. Multifunctional peptides derived from an egg yolk protein hydrolysate: isolation and characterization
26. Hydrogen–deuterium exchange in imidazole as a tool for studying histidine phosphorylation
27. Ubiquitin fragments: their known biological activities and putative roles
28. Hydrate of 2,3:4,5-di-O-isopropylidene-β-D-arabino-hexos-2-ulo-2,6-pyranose as new crystalline reagent in the preparation of Amadori derived peptides
29. Peptide Charge Derivatization as a Tool for Early Detection of Preeclampsia by Mass Spectrometry—A Comparison with the ELISA Test
30. Analysis of Fragmentation Pathways of Peptide Modified with Quaternary Ammonium and Phosphonium Group as Ionization Enhancers
31. Selective Detection of Carbohydrates and Their Peptide Conjugates by ESI-MS Using Synthetic Quaternary Ammonium Salt Derivatives of Phenylboronic Acids
32. Coordination abilities of neurokinin A and its derivative and products of metal-catalyzed oxidation
33. Iron(III) and aluminum(III) complexes with hydroxypyrone ligands aimed to design kojic acid derivatives with new perspectives
34. Detection of glycation sites in proteins by high-resolution mass spectrometry combined with isotopic labeling
35. Selective ESI-MS detection of carbonyl containing compounds by aminooxyacetic acid immobilized on a resin
36. Structural analysis of the O-specific polysaccharide isolated from Plesiomonas shigelloides O51 lipopolysaccharide
37. New method of peptide cleavage based on Edman degradation
38. Gas-Phase Fragmentation of Oligoproline Peptide Ions Lacking Easily Mobilizable Protons
39. Sensitive electrospray mass spectrometry analysis of one-bead-one-compound peptide libraries labeled by quaternary ammonium salts
40. The Hydrogen–Deuterium Exchange at α-Carbon Atom in N,N,N-Trialkylglycine Residue: ESI-MS Studies
41. The Competition of Charge Remote and Charge Directed Fragmentation Mechanisms in Quaternary Ammonium Salt Derivatized Peptides—An Isotopic Exchange Study
42. The efficient synthesis of isotopically labeled peptide-derived Amadori products and their characterization
43. Methods of the site-selective solid phase synthesis of peptide-derived Amadori products
44. Application of Safirinium N-Hydroxysuccinimide Esters to Derivatization of Peptides for High-Resolution Mass Spectrometry, Tandem Mass Spectrometry, and Fluorescent Labeling of Bacterial Cells
45. A two-process model describes the hydrogen exchange behavior of cytochrome c in the molten globule state with various extents of acetylation
46. A novel immunosuppressory peptide originating from the ubiquitin sequence
47. Electrocatalytic water oxidation influenced by the ratio between Cu2+ and a multiply branched peptide ligand
48. Evaluation of podocin in urine in horses using qualitative and quantitative methods
49. Synthesis and Mass Spectrometry Analysis of Mimosine-Containing Peptides
50. Detection of Podocin in Human Urine Sediment Samples by Charge Derivatization and LC-MS-MRM Method
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