摘要:
The present invention discloses a process for preparing ubiquinated peptide conjugates comprising a ubiquitin peptide residue UR attached at its C-terminus to a substrate peptide via a native isopeptide bond, this process comprising combining Native Chemical Ligation (NCL) and solid phase peptide synthesis (SPPS). Further are disclosed ubiquinated peptide conjugates containing a native isopeptide bond, as well as various uses thereof.
摘要:
The caged cell-penetrating peptide (cCPP) conjugates of this invention are ideal for intracellular delivery of a broad variety of cargoes including various nanoparticulate pharmaceutical carriers (liposomes, micelles, microparticles, nanoparticles, polymer-conjugates). The conjugates comprise a detectable agent or a therapeutic agent, and the conjugates provide a novel strategy for site-specific delivery of the same to appropriate tissues in the subject. Versatile application of the conjugates in diagnostics and imaging is described.
摘要:
The present invention discloses latent thioester functionalities attached to the C-terminus of a first polypeptide, or a first fragment thereof having a Cys residue at its N-terminus, and a process using this functionality for the preparation of polypeptide thioesters, in particular of ubiquitin thioesters, this process comprising preparing a polypeptide or a fragment thereof, being attached to a latent thioester functionality, which can then be ligated with a second polypeptide fragment, followed by selective activation of the latent thioester functionality group, to provide the requested polypeptide thioester. There are also provided the polypeptides obtained by this method, specific unnatural amino acids useful to be incorporated within the polypeptide thioesters, and kits for preparing them.
摘要:
Nano-sized particles are provided comprising at least one multi-headed amphiphilic compound, in which at least one headgroup of said multi-headed amphiphilic compound is selectively cleavable or contains a selectively cleavable group, and at least one biologically active agent, which is both encapsulated within the nano-particle and non-covalently associated thereto.
摘要:
The present invention generally relates to a flexible catheter device capable of being introduced into body passages, withdraw fluids therefrom or introduce fluids thereinto, and which includes electrodes configured to apply electrical signals in the body passage for carrying out thrombus dissolution and/or thrombectomy, wherein one of said electrodes is designed to contact the thrombus material and remove it or dissolve it, and wherein the electrical voltage signals are a unipolar pulsatile voltage signal.
摘要:
The present invention relates to novel compounds that are useful for inhibition and prevention of pathogen cell adhesion and cell adhesion-mediated pathologies. This invention also relates to pharmaceutical formulations comprising these compounds and methods of using them for inhibition and prevention of pathogen cell adhesion and cell adhesion- mediated pathologies. The compounds and pharmaceutical compositions of this invention can be used as therapeutic or prophylactic agents. They are particularly well-suited for treatment of infectious diseases.
摘要:
The present invention relates to novel compounds that are useful for inhibition and prevention of pathogen cell adhesion and cell adhesion-mediated pathologies. This invention also relates to pharmaceutical formulations comprising these compounds and methods of using them for inhibition and prevention of pathogen cell adhesion and cell adhesion-mediated pathologies. The compounds and pharmaceutical compositions of this invention can be used as therapeutic or prophylactic agents. They are particularly well-suited for treatment of infectious diseases.
摘要:
The invention relates to a vaccine composition comprising as an active ingredient an effective amount of an isolated S. pneumoniae PTS system, mannose-specific IIAB components (PTS, Accession No. NP_344822), optionally together with one or more pharmaceutically acceptable adjuvant(s).
摘要:
The present invention relates to regulation of ureide levels for optimal plant survival during nutrient remobilization such as occurs during normal growth, dark stress and senescence. Plants can be genetically engineered or selected using a suitable gene marker to have enhanced ureide accumulation. The present invention further provides methods of protecting plants, or extending the shelf life of fresh plant produce by application of exogenous ureides.