132622-66-3Relevant articles and documents
Superior HIV-1 TAR Binders with Conformationally Constrained R52 Arginine Mimics in the Tat(48–57) Peptide
Bhosle, Govind S.,Kharche, Shalmali,Kumar, Santosh,Sengupta, Durba,Maiti, Souvik,Fernandes, Moneesha
, p. 220 - 226 (2018/01/22)
We report a 100-fold increase in binding affinity of the Tat(48–57) peptide to HIV-1 transcriptional activator-responsive element (TAR) RNA by replacing Arg52, an essential and critical residue for Tat's specific binding, with (2S,4S)-4-guanidinoproline. The resulting αTat1M peptide is a far superior binder than γTat1M, a peptide containing another conformationally constrained arginine mimic, (2S,4S)-4-amino-N-(3-guanidinopropyl)proline, or even the control Tat peptide (CtrlTat) itself. Our observations are supported by circular dichroism (CD), isothermal titration calorimetry (ITC), gel electrophoresis and UV spectroscopy studies. Molecular dynamics simulations suggest increased interactions between the more compact αTat1M and TAR RNA, relative to CtrlTat. The CD signature of the RNA itself remains largely unchanged upon binding of the peptides. The Tat mimetics further have better cell uptake properties than the control Tat peptide, thus increasing their potential application as specific TAR-binding molecules.
DIPEPTIDYL PEPTIDASE-IV INHIBITORS
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Page/Page column 117-118, (2008/06/13)
The present invention relates generally to pyrrolidine and thiazolidine DPP-IV inhibitor compounds. The present invention also provides synthetic methods for preparation of such compounds, methods of inhibiting DPP-IV using such compounds and pharmaceutical formulations containing them for treatment of DPP-IV mediated diseases, in particular, Type-2 diabetes.
Design and synthesis of photoaffinity-labeling ligands of the L-prolyl-L-leucylglycinamide binding site involved in the allosteric modulation of the dopamine receptor
Fisher, Abigail,Mann, Amandeep,Verma, Vaneeta,Thomas, Nancy,Mishra, Ram K.,Johnson, Rodney L.
, p. 307 - 317 (2007/10/03)
Pro-Leu-Gly-NH2 (PLG), in addition to its endocrine effects, possesses the ability to modulate dopamine 02 receptors within the central nervous system. However, the precise binding site of PLG is unknown. Potential photoaffinity-labeling ligand