Results 271 to 280 of about 795,931 (315)
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2005
In mass spectrometry (MS)-based protein studies, peptide fragmentation analysis (i.e., MS/MS experiments such as matrix-assisted laser desorption ionization [MALDI]-post-source decay [PSD] analysis, collision-induced dissociation [CID] of electrospray- and MALDI-generated ions, and electron-capture and electron-transfer dissociation analysis of ...
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In mass spectrometry (MS)-based protein studies, peptide fragmentation analysis (i.e., MS/MS experiments such as matrix-assisted laser desorption ionization [MALDI]-post-source decay [PSD] analysis, collision-induced dissociation [CID] of electrospray- and MALDI-generated ions, and electron-capture and electron-transfer dissociation analysis of ...
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International Journal of Peptide and Protein Research, 1996
Chimeric peptides were synthesized by adding the C‐terminal extension 28‐38 of the pituitary adenylate cyclase activating polypeptide (PACAP) to the sequences (1–27), (2–27), (3–27) and (6–27) of VIP. The capacity of these peptides to occupy the selective PACAP‐ and the non‐selective PACAP‐VIP receptors and to stimulate adenylate cyclase activity was ...
Gourlet, Philippe +4 more
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Chimeric peptides were synthesized by adding the C‐terminal extension 28‐38 of the pituitary adenylate cyclase activating polypeptide (PACAP) to the sequences (1–27), (2–27), (3–27) and (6–27) of VIP. The capacity of these peptides to occupy the selective PACAP‐ and the non‐selective PACAP‐VIP receptors and to stimulate adenylate cyclase activity was ...
Gourlet, Philippe +4 more
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Database of biologically active peptide sequences
Nahrung/Food, 1999Proteins are sources of many peptides with diverse biological activity. Such peptides are considered as valuable components of foods with desired and designed biological activity. Two strategies are currently recommended for research in the area of biological activity of food protein fragments.
J, Dziuba +3 more
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Physicochemical and sequence determinants of antiviral peptides
Biologia Futura, 2023Antiviral peptides (AVPs) open new possibilities as an effective antiviral therapeutic in the current scenario of evolving drug-resistant viruses. Knowledge about the sequence and structure activity relationship in AVPs is still largely unknown. AVPs and antimicrobial peptides (AMPs) share several common features but as they target different life forms
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A Terminal Peptide Sequence of Human Hæmoglobin?
Nature, 1959IT was reported recently1,2,3 that the chemical difference between the normal human haemoglobin A and the abnormal haemoglobins S and C resides in a tryptic peptide, called peptide 4, to which the following structure was assigned: histidyl-valyl-leucyl-leucyl-threonyl-prolyl-glutamyl-glutamyl-lysine.
J A, HUNT, V M, INGRAM
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The Dansyl-Edman Method for Peptide Sequencing
1986The dansyl-Edman method for peptide sequencing uses the Edman degradation (see Chapter 26 ) to sequentially remove amino acids from the N-terminus of a peptide. Following the cleavage step of the Edman degradation, the thiazolinone derivative is extracted with an organic solvent and discarded.
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2003
The advent of new analyzer systems based on Fourier-transform ion cyclotron resonance (FT-ICR) and quadropole time-of-flight (Q-TOF) technologies allows protein digests to be analyzed under high-resolution conditions, resulting in mass spectometry (MS) and tandem MS (MS/MS) peptide mass spectra characterized by a resolution of 10,000 [full width half ...
Andreas Schlosser, Wolf D. Lehmann
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The advent of new analyzer systems based on Fourier-transform ion cyclotron resonance (FT-ICR) and quadropole time-of-flight (Q-TOF) technologies allows protein digests to be analyzed under high-resolution conditions, resulting in mass spectometry (MS) and tandem MS (MS/MS) peptide mass spectra characterized by a resolution of 10,000 [full width half ...
Andreas Schlosser, Wolf D. Lehmann
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1991
For a recent American Society for Mass Spectrometry (ASMS) peptide sequencing workshop, some forty laboratories requested a sample of two unknown peptides. We chose to analyse a 1.5 μg sample with a stated mass of ~ 1800 u, and were the only laboratory to submit results on this peptide at the 1990 ASMS conference in Tucuon, Arizona.
N. Poppe-Schriemer +7 more
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For a recent American Society for Mass Spectrometry (ASMS) peptide sequencing workshop, some forty laboratories requested a sample of two unknown peptides. We chose to analyse a 1.5 μg sample with a stated mass of ~ 1800 u, and were the only laboratory to submit results on this peptide at the 1990 ASMS conference in Tucuon, Arizona.
N. Poppe-Schriemer +7 more
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Infrared spectroscopy of ‘forbidden’ peptide sequences
Physical Chemistry Chemical Physics, 2009Certain pentapeptide sequences are absent from all known universal protein primary structures, even though they are found in the non-coding regions of DNA. These 'forbidden' sequences may have been rejected by evolution because they disrupt the formation of functional secondary protein structures. The uncapped pentapeptides FFMCT and WCFNL, which model
Timothy D, Vaden +2 more
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Rapid sequence analysis of small peptides
Analytical Biochemistry, 1970Abstract Small amounts of peptide material can be analyzed by a modified sequential degradation plus dansylation procedure. The method requires about 5 nanomoles per step, and is primarily designed for application to peptides of up to five or six residues.
W R, Gray, J F, Smith
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