Results 31 to 40 of about 455,908 (138)

Unusual fragmentation of derivatized cysteine‐containing peptides [PDF]

open access: yesRapid Communications in Mass Spectrometry, 2018
RationaleModification of cysteines by aminoethylation results in side chains similar to those of lysine. Trypsin cleaves at this modified residue and this labeling method can facilitate the analysis of proteins, specifically antibodies. In this work, the ability to identify peptides containing aminoethylated cysteines is investigated through digestion,
Nick Degraan‐Weber   +2 more
openaire   +3 more sources

Database Search Strategies for Proteomic Data Sets Generated by Electron Capture Dissociation Mass Spectrometry [PDF]

open access: yes, 2009
Large data sets of electron capture dissociation (ECD) mass spectra from proteomic experiments are rich in information; however, extracting that information in an optimal manner is not straightforward.
Beausoleil S. A.   +17 more
core   +2 more sources

Identification of Viral Peptide Fragments for Vaccine Development [PDF]

open access: yes, 2009
We report a simple method for identifying foldable viral surface protein fragments in a random but systematic manner. The method involves digestion and reassembly of a target gene to generate a pool of smaller DNA fragments with random ends but controllable lengths, followed by screening for foldable fragments using green fluorescent protein (GFP) as a
Yong Chen, Zhanglin Lin, Shuang Li
openaire   +3 more sources

Probing the mechanism of electron capture and electron transfer dissociation using tags with variable electron affinity [PDF]

open access: yes, 2009
Electron capture dissociation (ECD) and electron transfer dissociation (ETD) of doubly protonated electron affinity (EA)-tuned peptides were studied to further illuminate the mechanism of these processes. The model peptide FQpSEEQQQTEDELQDK, containing a
Beauchamp, J. L.   +5 more
core   +2 more sources

Peptide fragmentation induced by radicals at atmospheric pressure [PDF]

open access: yesJournal of Mass Spectrometry, 2008
AbstractA novel ion dissociation technique, which is capable of providing an efficient fragmentation of peptides at essential atmospheric pressure conditions, is developed. The fragmentation patterns observed often contain c‐type fragments that are specific to electron capture dissociation/electron transfer dissociation (ECD/ETD), along with the y‐/b ...
Andrey N. Vilkov   +2 more
openaire   +3 more sources

Selection of gonadotrophin surge attenuating factor phage antibodies by bioassay [PDF]

open access: yes, 2005
Peer reviewedPublisher ...
Fowler, Paul Alfred Francois   +3 more
core   +3 more sources

A neutrophil-dependent pathway for the generation of a neutral peptide mediator: partial characterization of components and control by alpha-1-antitrypsin. [PDF]

open access: yes, 1974
A biologically active neutral peptide mediator is cleaved from a plasma protein substrate by an alpha-1-antitrypsin-inhibitable serine protease apparently residing on the membrane of the human neutrophil. The peptide mediator has an approximate mol wt of
Austen, KF, Goetzl, EJ, Wintroub, BU
core  

Comparative Analysis of the Major Polypeptides from Liver Gap Junctions and Lens Fiber Junctions [PDF]

open access: yes, 1982
Gap junctions from rat liver and fiber junctions from bovine lens have similar septilaminar profiles when examined by thin-section electron microscopy and differ only slightly with respect to the packing of intramembrane particles in freeze-fracture ...
Anderson, David J.   +3 more
core   +2 more sources

Direct regulation of Treslin by cyclin-dependent kinase is essential for the onset of DNA replication [PDF]

open access: yes, 2011
Treslin, a TopBP1-interacting protein, is necessary for deoxyribonucleic acid (DNA) replication in vertebrates. Association between Treslin and TopBP1 requires cyclin-dependent kinase (Cdk) activity in Xenopus laevis egg extracts.
Dunphy, William G.   +3 more
core   +2 more sources

A nomenclature system for labeling cyclic peptide fragments

open access: yesJournal of the American Society for Mass Spectrometry, 1999
A nomenclature system for labeling fragment ions of cyclic peptides is proposed. A fragment ion is labeled with a four-part descriptor for the general formula xnJZ, where x is the designation for the ion (e.g., lower case a or b, as are used for peptide fragments) and n is the number of amino acid residues in the ion.
Lambert C. M. Ngoka, Michael L. Gross
openaire   +3 more sources

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