Results 311 to 320 of about 1,122,450 (358)
Some of the next articles are maybe not open access.

Error-Tolerant Identification of Peptides in Sequence Databases by Peptide Sequence Tags

Analytical Chemistry, 1994
We demonstrate a new approach to the identification of mass spectrometrically fragmented peptides. A fragmentation spectrum usually contains a short, easily identifiable series of sequence ions, which yields a partial sequence. This partial sequence divides the peptide into three parts-regions 1, 2, and 3-characterized by the added mass m1 of region 1,
Mann, M, Wilm, M
openaire   +4 more sources

A method of peptide sequencing

Journal of the Chemical Society, Chemical Communications, 1973
Sequencing of peptides has been carried out by degrading them to diketopiperazines and identification of the diketopiperazine by g.c./m.s. methods.
J. David Baty   +2 more
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Sequence‐assisted peptide synthesis (SAPS)

The Journal of Peptide Research, 1998
Abstract:In solid‐phase peptide synthesis (SPPS) the growing peptide chain may undergo chain aggregation which can cause serious synthetic problems. A number of investigations concerning this problem have been reported in the chemical literature. During a study of such “difficult sequences” using the Fmoc‐protection strategy, we have observed that ...
Due Larsen, B., Holm, A.
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Sequencing an Unknown Peptide

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.
Kenneth G. Standing   +7 more
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The Dansyl-Edman Method for Peptide Sequencing [PDF]

open access: possible, 1986
The 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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Peptide sequencing by metastable mapping

Organic Mass Spectrometry, 1983
AbstractThe amino acid sequence of three simple peptides has been determined by the technique of metastable mapping. The products of decompositions in the first field free region of a forward geometry double focussing mass spectrometer are studied by decreasing the electric sector field between scans of the magnetic field.
Urs Peter Schlunegger   +3 more
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Infrared spectroscopy of ‘forbidden’ peptide sequences [PDF]

open access: possiblePhysical Chemistry Chemical Physics, 2009
Certain 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
Lavina C. Snoek   +2 more
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Patchwork Peptide Sequencing

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 ...
Wolf D. Lehmann, Andreas Schlosser
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Peptide Sequence Analysis

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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A Terminal Peptide Sequence of Human Hæmoglobin?

Nature, 1959
IT 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.
Vernon M. Ingram, J. A. Hunt
openaire   +3 more sources

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