Results 21 to 30 of about 527,353 (294)

Peptide and peptide-inspired checkpoint inhibitors: Protein fragments to cancer immunotherapy

open access: yesMedicine in Drug Discovery, 2020
Immune system regained the attention of oncologists and has entered the mainstream for cancer therapy since the discovery of checkpoint antibodies targeting CTLA4 and PD-1 pathways.
Pottayil G. Sasikumar   +1 more
doaj   +1 more source

Active Transport of Peptides Across the Intact Human Tympanic Membrane. [PDF]

open access: yes, 2018
We previously identified peptides that are actively transported across the intact tympanic membrane (TM) of rats with infected middle ears. To assess the possibility that this transport would also occur across the human TM, we first developed and ...
Alexander, Thomas   +9 more
core   +1 more source

From Synthetic Fragments of Endogenous Three-Finger Proteins to Potential Drugs

open access: yesFrontiers in Pharmacology, 2019
The proteins of the Ly6 family have a three-finger folding as snake venom α-neurotoxins, targeting nicotinic acetylcholine receptors (nAChRs), and some of them, like mammalian secreted Ly6/uPAR protein (SLURP1) and membrane-attached Ly-6/neurotoxin ...
Elena V. Kryukova   +11 more
doaj   +1 more source

Functionally important segments in proteins dissected using Gene Ontology and geometric clustering of peptide fragments [PDF]

open access: yes, 2008
We have developed a geometric clustering algorithm using backbone \varphi,\psi angles to group conformationally similar peptide fragments of any length.
Karuppasamy Manikandan   +5 more
core   +1 more source

A Dynamic Programming Approach to De Novo Peptide Sequencing via Tandem Mass Spectrometry [PDF]

open access: yes, 2001
The tandem mass spectrometry fragments a large number of molecules of the same peptide sequence into charged prefix and suffix subsequences, and then measures mass/charge ratios of these ions.
Chen, Ting   +4 more
core   +3 more sources

The Synthetic Antimicrobial Peptide 19-2.5 Interacts with Heparanase and Heparan Sulfate in Murine and Human Sepsis.

open access: yesPLoS ONE, 2015
Heparanase is an endo-β-glucuronidase that cleaves heparan sulfate side chains from their proteoglycans. Thereby, heparanase liberates highly potent circulating heparan sulfate-fragments (HS-fragments) and triggers the fatal and excessive inflammatory ...
Lukas Martin   +8 more
doaj   +1 more source

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

A Novel Urinary Proteomics Classifier for Non-Invasive Evaluation of Interstitial Fibrosis and Tubular Atrophy in Chronic Kidney Disease

open access: yesProteomes, 2021
Non-invasive urinary peptide biomarkers are able to detect and predict chronic kidney disease (CKD). Moreover, specific urinary peptides enable discrimination of different CKD etiologies and offer an interesting alternative to invasive kidney biopsy ...
Lorenzo Catanese   +6 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

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.
Klammer, Aaron A.   +4 more
openaire   +2 more sources

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