منابع مشابه
Synthesis of trifunctional cyclo-β-tripeptide templates
The concept of template-assembled synthetic proteins (TASP) describes a central scaffold that predefines the three dimensional structure for diverse molecules linked to this platform. Cyclic β-tripeptides are interesting candidates for use as templates due to their conformationally defined structure, stability to enzymatic degradation, and ability to form intermolecular stacked tubular structur...
متن کاملSynthesis and structure of oxetane containing tripeptide motifs.
A new class of peptidomimetic is reported in which one of the amide C=O bonds of the peptide backbone is replaced by an oxetane ring. They are synthesised by conjugate addition of various α-amino esters to a 3-(nitromethylene)oxetane, reduction of the nitro group and further coupling with N-Z protected amino acids to grow the peptide chain. Structural insights are provided by X-ray diffraction ...
متن کاملStepwise synthesis of a stable diphosphasilirane and its unexpected dimerization.
The synthesis of the thermally stable bicyclic diphosphasilirane O(SiiPr2P)2SiiPr2 (4) was achieved via oxidation of the alkaline earth metal substituted cyclic diphosphanide 3 with 1,2-dibromoethane. Nonetheless, during extended storage at low temperature, impurity induced rearrangement in favour of the dimeric species [O(SiiPr2P)2SiiPr2]2 (5) is observed.
متن کاملDesign, Synthesis and Labeling of Tripeptide Derivatives with 99mTc as Hypoxia Imaging Agents
Background: Many diseases, including cancer, ischemia and tumors show degrees of tissue hypoxia.Therefore, it is useful to detect tissue hypoxia with compounds that can penetrate and remain in hypoxic cells in order to diagnose cancer at early stages. Peptides with low molecular weight, susceptible to redox environment, with easier penetration into tissues and low antigenic characteristics are ...
متن کاملSynthesis of EF24-tripeptide chloromethyl ketone: a novel curcumin-related anticancer drug delivery system.
The blood coagulation cascade includes a step in which the soluble protein, factor VIIa (fVIIa), complexes with its transmembrane receptor, tissue factor (TF). The fVIIa/TF protein-protein complex is subsequently drawn into the cell by endocytosis. The observation that TF is aberrantly and abundantly expressed on many cancer cells offers an opportunity to specifically target those cells with an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1968
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.61.4.1363