News and Research Archive
Mirror-Image mRNA
Reflecting recent work in the Payne lab
Chemokines are small proteins involved in recruiting leukocytes to sites of inflammation via interactions with specific cell surface receptors. CCL22 is a chemokine known to play a critical role in...
Genetical Encoding
Reflecting recent work in the Schultz lab
Nicotinamide-containing cofactors play an essential role in many enzymes that catalyze two-electron redox reactions. However, it is difficult to engineer nicotinamide binding sites into proteins due to the extended nature...
Intracellular Antibodies
Reflecting recent work in the Futaki lab
Published in Bioconjugate Chemistry, researchers from Shiroh Futaki Group at the Kyoto University, prepared conjugates of the biocompatible polysaccharide pullulan with a cell membrane permeabilizing peptide...
Mammalian Esterase Activity
Reflecting recent work in the Raines lab
As a traceless, bioreversible modification, the esterification of carboxyl groups in peptides and proteins has the potential to increase their clinical utility. An impediment is the lack of strategies to quantify...
Dominant Rotor Method
Reflecting recent work in the Yudin lab
Helical secondary structures, namely α- and 310-helices, comprise >60% of all secondary structures observed at protein–protein interactions, PPIs, and are responsible for the mediation of many biological...
Controlling Stereoselectivity
Reflecting recent work in the Wennemers lab
In a study from the Wennemers Lab at ETH, Zūrich, published in JACS, group members present an organocatalytic kinetic resolution to yield enantiomerically enriched β-branched aldehydes and γ-nitroaldehydes with three...
Structure Transitions
Reflecting recent work in the Martin lab
Membrane–peptide interactions are key to the formation of helical intermediates in the early stages of amyloidogenesis. Aqueous solutions of 2,2,2-trifluoroethanol...
Antimicrobial Lipopeptides
Reflecting recent work in the Hamley lab
Chirality plays a crucial role in the self-assembly of biomolecules in nature. Peptides show chirality-dependent conformation and self-assembly. Lipidation of peptides occurs in vivo...
Solid Polymer Electrolytes
Reflecting recent work in the Evans lab
Ion transport is essential to energy storage, cellular signalling and desalination. Polymers have been explored for decades as solid-state electrolytes by either adding salt to polar polymers...
Non Classical Crystallization
Reflecting recent work from BASF
In a recent study, published in Advanced Functional Materials, researchers in the Kellermeier Lab at BASF, have used phage display screening to identify peptide motifs...
Virus Disinfection
Reflecting recent work in the Huang lab
Global pandemics caused by pathogenic viruses have highlighted the need to develop effective and sustainable materials to defend against these viruses. However, most commercial viral disinfection...
Macroscopic Dipoles
Reflecting recent work in the Gopi lab
Crystalline materials exhibiting non-centrosymmetry and possessing substantial surface dipole moments play a critical role in piezoelectricity. Designing biocompatible self-assembled materials...
Peptide Permeation
Reflecting recent work in the Su lab
Macrocyclic peptides show promise in targeting high-value therapeutically relevant binding sites due to their high affinity and specificity. However, their clinical application...
Lipopeptidomimetics Tool
Reflecting recent work in the Mapp lab
A short, amphipathic peptide derived from transcriptional activators is transformed from a weak inhibitor of transcriptional protein–protein interactions (PPIs) to an effective inhibitor...
Max Cell Penetration
Reflecting recent work in the Kritzer lab
In an article featured on the cover of ACS Chemical Biology, Nefeli Batistou from the Kritzer Lab at Tufts, describes techniques now being used to reveal differential penetration...
Backbone N-Methylation
Reflecting recent work in the Wilson lab
A significant challenge in chemical biology is to understand and modulate protein–protein interactions, PPIs. Given that many PPIs involve a...
Backbone Modification
Reflecting recent work in the Horne lab
Targeted protein backbone modification can recreate tertiary structures reminiscent of folds found in nature on artificial scaffolds with improved biostability...
Site-Specific Probes
Reflecting recent work in the Jackson lab
Proteins produced with leucine analogues, where CH2F groups substitute specific methyl groups, can readily be probed by 19F NMR spectroscopy...
Lasso Peptides
Reflecting recent work in the Hartrampf lab
As the chemical space of MccJ25 analogues accessible through purely biological methods is also limited, researchers in the Hartrampf Lab propose a hybrid approach...
Antifungal Resistance
Reflecting recent work in the Rubini lab
The pursuit of novel antifungal agents is imperative to tackle the threat of antifungal resistance, which poses major risks to both human health and to food security...
Proline Conformation
Reflecting recent work in the Zondlo lab
Using Dfp, researchers in the Zondlo lab at the University of Delaware, published in Biochemistry, discovered that the stable polyproline II helix, PPII...
Graspetide Biosynthesis
Reflecting recent work in the Link lab
The ribosomally synthesized and post-translationally modified peptide, RiPP, superfamily of natural products includes many examples of cyclic peptides with diverse...
Peptide & Enzyme Catalysts
Reflecting recent work in the Wennemers lab
Enzymes and peptide catalysts consist of the same building blocks but require vastly different environments to operate best. Published in Angewandte...
Self-Assembled Nanofibers
Reflecting recent work in the Sabatino lab
Amphiphilic peptide sequences are conducive to secondary structures that self-assemble into higher-ordered peptide nanostructures. A select set...
Network Pharmacology
Reflecting recent work in the Jin lab
Carapax Trionycis is a traditional Chinese medicine and it has been clear that oligo-peptides from Carapax Trionycis extract, CTP, are the main active substances...
Azobenzene Moiety
Reflecting recent work in the Wiedman lab
Azobenzenes are a series of compounds that can be isomerized upon irradiation with light. These molecules can...
Monoclonal Antibodies
Reflecting recent work in the Nowick lab
Monoclonal antibodies, mAbs, that target the β-amyloid peptide, Aβ, are important Alzheimer's disease research tools and are now being...
Novel, Rational Drug Design
Reflecting recent work in the Deber lab
As an alternative approach to conventional antibiotics, members of the Charles Deber laboratory, published in Peptide Science, explore a novel...
Bicyclic Peptides
Reflecting recent work in the Nitsche lab
Bicyclic peptides have emerged as one of the driving forces within the constrained peptide family. Due to their unique pharmaceutical attributes...
Self-Sorting Collagen
Reflecting recent work in the Wennemers lab
Nature uses elaborate methods to control protein assembly, including that of heterotrimeric collagen....
Finding Pulmonary Fibrosis
Reflecting recent work in the Raines lab
Idiopathic pulmonary fibrosis, IPF, is a disease of unknown etiology that is characterized by excessive deposition and abnormal remodeling of collagen...
N-Terminal Acetylation
Reflecting recent work in the Petersson lab
N-terminal acetylation is a chemical modification carried out by N-terminal acetyltransferases. A major member of this enzyme family, NatB, acts on much of the human proteome...
Reversible Covalent Warheads
Reflecting recent work in the Gao lab
Falling in between traditional small molecules and antibodies in size, peptides are emerging as a privileged therapeutic modality, one that can harness...
Max Phosphorylation
Reflecting recent work in the Jbara lab
The chemical synthesis of site-specifically modified transcription factors, TFs, is a powerful method to investigate how post-translational modifications influence TF-DNA...
Mechanistic Studies of CyClick Chemistry
Reflecting recent work in the Raj and Houk labs
Macrocyclic peptides have become increasingly important in the pharmaceutical industry. In collaborative work between the groups of Kendall N. Houk and Monika Raj, published in...
SPAAC Reactions
Reflecting recent work in the Schneider lab
Joel P. Schneider, Yixin Xie, and Tania L. Lopez-Silva at the National Cancer Institute, report a new positively charged azidoamino acid for strain-promoted azide–alkyne cycloaddition...
Human Serum Albumin
Reflecting recent work in the Lam lab
Human serum albumin, HSA, is the most abundant protein in human blood plasma. It plays a critical role in the native transportation of numerous drugs, metabolites, nutrients, and small molecules...
Glycan Biology
Reflecting recent work in the Imperiali lab
Glycan-binding proteins, GBPs, are widely used reagents for basic research and clinical applications. These reagents allow for the identification and manipulation of glycan determinants...
Drug Candidate
Reflecting recent work in the Nowick lab
In this article, published in Chemical Science, members of the James S. Nowick group show that the antibiotic teixobactin is a promising drug candidate...
Peptides and Proteins
Reflecting recent work in the Raines lab
Transforming growth factor-β (TGF-β) plays important roles in wound healing. The activity of TGF-β is initiated upon the binding of the growth factor...
Cyclic Peptides
Reflecting recent work in the Heinis lab
The synthesis of large numbers of cyclic peptides─required, for example, in screens for drug development─is currently limited by the need of chromatographic...
“Imprint-and-Report” DCLs
Reflecting recent work in the Waters lab
Sensor arrays using synthetic receptors have found great utility in analyte detection, resulting from their ability to distinguish analytes based on differential signals via...
Kinase inhibitors
Reflecting recent work in the Kennedy lab
Leucine-Rich Repeat Kinase 2 (LRRK2) is a large, multidomain protein with dual kinase and GTPase function that is commonly mutated in both familial and idiopathic...
Protein Interactions
Reflecting recent work in the Pikaard lab
In plants, transcription of selfish genetic elements such as transposons and DNA viruses is suppressed by RNA-directed DNA methylation...
Protein Mimic
Reflecting recent work in the Arora lab
Members of the Arora lab constructed a synthetic Sos protein mimic that engages the wild-type and oncogenic forms of nucleotide-bound Ras and modulates downstream kinase signaling...
B-cell Epitope
Reflecting recent work in the Kaumaya lab
Herein, researchers in the Kaumaya lab describe a novel PD-1 B-cell peptide epitope vaccine (amino acid 92–110; PD1-Vaxx) linked to a measles virus fusion peptide...
Peptide Cancer Vaccines
Reflecting recent work in the lab
In this article, Professor Pravin Kaumaya reviews his lab's approaches and strategies that focus on B-cell epitope cancer vaccines...
Peptide Libraries
Reflecting recent work in the Derda lab
Herein is described a divergent late-stage approach to generating macrocyclic peptide libraries with unnatural pharmacophores from readily available starting material...
Peptide Synthesis
Reflecting recent work in the Brik lab
Despite six decades of efforts to synthesize peptides and proteins bearing multiple disulfide bonds, this synthetic challenge remains an unsolved problem...
Protein-Protein Interactions
Reflecting recent work in the Pomerantz lab
Herein is reported the first application of protein-observed fluorine (PrOF) NMR to the tandem bromodomains of BRD4 and BRDT to quantify the selectivity of their...
Lariat Peptides
Reflecting recent work in the Lokey lab
Many lariat peptide natural products exhibit interesting biological activities, and some, such as griselimycin and didemnin B, are membrane permeable...
Tyr-Lock Peptide
Reflecting recent work in the O'Keefe lab
High-throughput screening for inhibitors of TDP1 activity resulted in the discovery of a new class of knotted cyclic peptides...
DNA nanotechnology
Reflecting recent work in the Seitz lab
DNA nanotechnology is an emerging field that promises fascinating opportunities for the manipulation and imaging of proteins on a cell surface...
Antimicrobial Synergy
Reflecting recent work in the Raines lab
Authors Chelcie Eller and Ron Raines find that human LL-37 and human RNase 1 can act synergistically to kill Gram-negative bacterial cells...
Social Media Guide
Reflecting recent work in the Heemstra lab
An ACS editorial that provides scientists a guide to navigating and using social media to share ideas and enhance connections...
Flow SPPS
Reflecting recent work in the Hartrampf lab
Flow‐based approaches to solid phase peptide synthesis (SPPS) have been pursued since the method's early days, with anticipated gains in...
Bioorthogonal Conjugation
Reflecting recent work in the Salmain lab
This minireview intends provides an up‐to‐date overview on the various bioorthogonal strategies implemented for the conjugation of transition organometallic entities...
Disrupt Ubiquitination
Reflecting recent work in the Walensky lab
The ubiquitin–proteasome system (UPS) is a highly regulated protein disposal process critical to cell survival. Inhibiting the pathway induces proteotoxic stress and can be an effective cancer treatment.
Cell Permeability
Reflecting recent work in the Verma lab
In a larger collaborative effort, these researchers have combined the strategies to identify the first examples of all-D α-helical stapled and stitched peptides.
Antimicrobial Peptides
Reflecting recent work in the Church lab
Church et al. report a tunable chemical genetics approach for enhancing genetic code expansion in different wild-type bacterial strains..
Protein Stability
Reflecting recent work in the Chatterjee lab
Abundant n → π* interactions between adjacent backbone carbonyl groups are predicted to play an important role in dictating the structure of proteins...
COVID-19 Therapeutics
Reflecting recent work in the Yousef lab
In this review, the researchers summarize peptide and peptide based therapeutics that target one main entry pathway of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)...
Tyrosine Sulfation
Reflecting recent work in the Payne lab
Researchers at the University of Sydney have shown that the evasin protein ACA-01 from the Amblyomma cajennense tick can be posttranslationally sulfated at two tyrosine residues...
Targeting GPCRs
Reflecting recent work in the Davenport lab
This recently published review discusses the current status of the peptide drugs targeting G protein-coupled receptors (GPCRs), with a focus on evolving strategies...
β-Turn Mimics
Reflecting recent work in the Thomson lab
Researchers report a simple reductive amination protocol to ligate two peptides, while simultaneously installing a β-turn mimic at the ligation junction...
Coupling Agent Hazards
Reflecting recent work in the Nowick lab
This case study of anaphylaxis induced by three uronium coupling agents, HATU, HBTU, and HCTU, is a cautionary note for researchers who handle peptide coupling agents frequently...
Molecular Transporters
Reflecting recent work in the Parang lab
In this collaborative study, researchers have designed a new generation of peptides based on previously designed cyclic cell-penetrating peptides. They have evaluated their cytotoxicity as well as uptake behavior...
Cyclotide Uptake
Reflecting recent work in the Wang lab
In this study, the recently developed chloroalkane penetration assay was combined with established assays to characterize the cellular uptake and cytosolic delivery of the prototypic cyclotide, kalata B1...
Cyclotide Production
Reflecting recent work in the Craik lab
In this manuscript researchers in Dr. Craik's lab describe a strategy to improve the production of cyclotides, which are usually produced and cyclized synthetically at a high cost and environmental impact for large scale.
Peptide Mimics
Reflecting recent work in the Liu lab
Peptides have important biological functions. However, their susceptibility to proteolysis limits their applications...
γ-Amino Acids Elongation
Reflecting recent work in the Suga lab
Because γ-amino acids generally undergo rapid self-cyclization upon esterification on the carboxyl group, for example, γ-aminoacyl-tRNA, there are no reports of the ribosomal elongation...
Platinum Nanoparticles
Reflecting recent work in the Wennemers lab
Hepatocellular carcinoma, HCC, is the sixth most frequent cancer and the second leading cause of death from cancer worldwide. Sorafenib is the most commonly used FDA‐approved systemic...
Ice Nucleators
Reflecting recent work in the Derda lab
In a manuscript published in Langmuir, Yuki Kamijo and Ratmir Derda from the, University of Alberta, describe a screening system that employs the difference...
Enzyme Sequestration
Reflecting recent work in the Xu lab
Liquid-like droplets of biomacromolecules are emerging as a fundamental mechanism of cellular signaling, but designing synthetic mimics to form such...
Short Peptides
Reflecting recent work in the Arora lab
Helical secondary and tertiary motifs are commonly observed as binding epitopes in natural and engineered protein scaffolds. While several strategies...