نتایج جستجو برای: tripeptides

تعداد نتایج: 564  

2017
Sandrine Bekaert Marianne Fillet Benoit Detry Muriel Pichavant Raphael Marée Agnes Noel Natacha Rocks Didier Cataldo

Mechanisms explaining the propensity of a primary tumor to metastasize to a specific site still need to be unveiled, and clinical studies support a link between chronic inflammation and cancer dissemination to specific tissues. Using different mouse models, we demonstrate the role of inflammation-generated extracellular matrix fragments ac-PGP (N-acetyl-proline-glycine-proline) on tumor cells d...

Journal: :Advanced Synthesis & Catalysis 2022

N-heterocyclic moieties are abundant among pharmaceuticals and agrochemicals, but a challenge for metalorganic organocatalytic transformations. We present tripeptides of the type H-Pro-Pro-Xaa as catalysts stereoselective conjugate addition reactions between substituted aldehydes electrophiles. Alkyl substituents at N-terminal proline, reactive site, were crucial high chemo- stereoselectivity. ...

Journal: :Proceedings of the National Academy of Sciences 1977

Journal: :Journal of Biological Chemistry 1959

Journal: :Chemistry 2007
Gerald A Metselaar P J Hans M Adams Roeland J M Nolte Jeroen J L M Cornelissen Alan E Rowan

Helical polymers of isocyanotripeptides derived from alanine have been synthesized and their architectures studied in detail. The helical conformation of the polyisocyanotripeptides is stabilized by internal hydrogen-bonding arrays between the tripeptide side chains. The possibility of extending the well-defined hydrogen-bonded array, from dipeptide to tripeptide side chains, depends strongly o...

2012
Enric Gisbert Ali Skalli Ignacio Fernández Yannis Kotzamanis Jose Luis Zambonino-Infante Rogelio Fabregat

In this study, we have evaluated the incorporation of two types of protein hydrolysates at 9 and 12% levels of inclusion, one from yeast (Saccharomyces cerevisiae, YPH) and another one from pig blood (PBPH), in microdiets for gilthead sea bream (Sparus aurata) larvae, and compared these results to a microdiet containing fish protein hydrolysate and another group only fed with enriched live prey...

Journal: :The Journal of nutrition 2010
Ivar Rønnestad Koji Murashita Gabor Kottra Ann-Elise Jordal Shailesh Narawane Cecile Jolly Hannelore Daniel Tiziano Verri

Atlantic salmon (Salmo salar L.) is one of the most economically important cultured fish and also a key model species in fish nutrition. During digestion, dietary proteins are enzymatically cleaved and a fraction of degradation products in the form of di- and tripeptides translocates from the intestinal lumen into the enterocyte via the Peptide Transporter 1 (PepT1). With this in mind, a full-l...

Journal: :Organic & biomolecular chemistry 2006
Pawel Dziedzic Weibiao Zou Jonas Háfren Armando Córdova

Simple modular di- and tripeptides with a primary amine at the N-terminus catalyze the aqueous asymmetric aldol reaction between unmodified ketones and aldehydes to furnish the corresponding beta-hydroxy ketones with up to 86% ee in water and 99% ee in aqueous media.

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