Results 41 to 50 of about 355,998 (353)

Leveraging the multivalent p53 peptide-MdmX interaction to guide the improvement of small molecule inhibitors

open access: yesNature Communications, 2022
Peptide fragments derived from the interfaces of protein-protein interactions (PPIs) provide useful templates for designing small molecule PPI inhibitors.
Xiyao Cheng   +8 more
doaj   +1 more source

Fragment synthesis of disulfide-containing peptides

open access: yesMethodsX, 2020
A new strategy for solid phase peptide synthesis in the fragment synthesis based on the use of 2-Cl-trityl resin as carrier to obtain protected peptide-resin and Rink Amide Resin, HOBT/HBTU or PyBOP/DIPEA or HATU/DIPEA as the coupling method is described. The highlights of this method are:•Simple.•Low cost.•Solid phase based.
Yuxuan Dai   +3 more
openaire   +3 more sources

Identification of GDF15 peptide fragments inhibiting GFRAL receptor signaling

open access: yes, 2023
Growth differentiation factor 15 (GDF15) is believed to be a major causative factor for cancer-induced cachexia. Recent elucidation of the central circuits involved in GDF15 function and its signaling through the glial cell-derived neurotrophic factor ...
Fink, Lisbeth Nielsen   +11 more
core   +1 more source

Modeling peptide fragmentation with dynamic Bayesian networks for peptide identification [PDF]

open access: yesBioinformatics, 2008
AbstractMotivation: Tandem mass spectrometry (MS/MS) is an indispensable technology for identification of proteins from complex mixtures. Proteins are digested to peptides that are then identified by their fragmentation patterns in the mass spectrometer.
Aaron A. Klammer   +4 more
openaire   +2 more sources

Collisional energy dependence of peptide ion fragmentation [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2009
The energy dependence of fragmentation in a collision cell was measured for 2400 protonated peptide ions derived from the digestion of 24 proteins. The collision voltage at which the sum of the fragment ion abundances was equal to the remaining parent ion (V(1/2)) was the principal measure of fragmentation effectiveness.
Neta, Pedatsur   +3 more
openaire   +2 more sources

Light-Induced Orthogonal Fragmentation of Crosslinked Peptides

open access: yesJACS Au, 2023
Crosslinking mass spectrometry provides pivotal information on the structure and interaction of proteins. MS-cleavable crosslinkers are regarded as a cornerstone for the analysis of complex mixtures. Yet they fragment under similar conditions as peptides, leading to mixed fragmentation spectra of the crosslinker and peptide.
Lars Kolbowski   +4 more
openaire   +5 more sources

Differential patterns of PMN-elastase and type III procollagen peptide in knee joint effusions due to acute and chronic sports injuries [PDF]

open access: yes, 1991
In 38 traumatic knee joint effusions the proteolytic enzyme PMN-elastase (PMN-E) and the repair marker procollagen III aminoterminal peptide (PIIINP) were determined.
Bernett, P.   +3 more
core   +1 more source

Atypical signaling and functional desensitization response of MAS receptor to peptide ligands. [PDF]

open access: yesPLoS ONE, 2014
MAS is a G protein-coupled receptor (GPCR) implicated in multiple physiological processes. Several physiological peptide ligands such as angiotensin-(1-7), angiotensin fragments and neuropeptide FF (NPFF) are reported to act on MAS.
Kalyan C Tirupula   +3 more
doaj   +1 more source

Effect of phenylalanine on the fragmentation of deprotonated peptides [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2002
The fragmentation reactions of a variety of deprotonated dipeptides and tripeptides containing phenylalanine have been studied using energy-resolved collision-induced dissociation, isotopic labeling and MS/MS/MS experiments. The benzyl a-group has a substantial effect on the fragmentation reactions observed.
openaire   +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   +2 more sources

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