Toward a Rational Design of Peptide Inhibitors of Ribonucleotide Reductase: Structure−Function and Modeling Studies
摘要:
Mammalian ribonucleotide reductase, a chemotherapeutic target, has two subunits, mR1 and mR2, and is inhibited by AcF(1)TLDADF(7), denoted P7. P7 corresponds to the C-terminus of mR2 and competes with mR2 for binding to mR1. We report results of a structure-function analysis of P7, obtained using a new assay measuring peptide ligand binding to mR1, that demonstrate stringent specificity for Phe at F-7, high specificity for Phe at F-1, and little specificity for the N-acyl group. They support a structural model in which the dominant interactions of P7 occur at two mR1 sites, the F-1 and F-7 subsites. The model is constructed from the structure of Escherichia colt R1 (eR1) complexed with the C-terminal peptide from eR2, aligned sequences of mR1 and eR1, and the trNOE-derived structure of mR1-bound P7. Comparison of this model with similar models constructed for mR1 complexed with other inhibitory ligands indicates that increased F-1 subsite interaction can offset lower F-7 subsite interaction and suggests strategies for the design of new, higher affinity inhibitors.
[EN] LIGAND-CONTROLLED C(SP3)-H ARYLATION AND OLEFINATION IN SYNTHESIS OF UNNATURAL CHIRAL ALPHA AMINO ACIDS [FR] ARYLATION COMMANDÉE PAR LIGAND DE C(SP3)-H ET OLÉFINATION UTILISABLES DANS LE CADRE DE LA SYNTHÈSE D'ACIDES ALPHA-AMINÉS CHIRAUX NON NATURELS
Systematic Exploration of Passive Permeability in Tetrapeptides with Hydrogen‐Bond‐Accepting Amino Acid Side Chains
作者:Hiroki Shimizu、Adam R. Renslo
DOI:10.1002/cmdc.202200204
日期:2022.8.17
explore the passive artificial membrane permeability of 37 synthetic tetrapeptides bearing one or two unnatural aminoacids bearing hydrogenbondacceptor (HBA) atoms for possible intramolecular H-bond formation. Permeability values spanning three orders of magnitude provide an empirical dataset of potential interest to medicinal and computational chemists studying the membrane permeability of peptides
Provided herein are peptides and peptide analogs and methods of treating a metabolic disease, e.g., obesity, diabetes, methods of treating cancer, methods of treating a liver disease, and methods of modulating fatty acid metabolism.
Peptide inhibitors of transcription factor aggregation
申请人:ADRX, INC.
公开号:US11117930B2
公开(公告)日:2021-09-14
This invention relates to materials, such as peptides, and methods to inhibit the aggregation transcription factors, for example p53 inhibitors, p63 inhibitors and p73 inhibitors. More specifically, the invention relates to cancer chemotherapeutics. More specifically, the invention provides pharmaceutical compositions and methods of treating cancer with certain peptides.