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🔥 Hot Today in Peptide Research

October 14, 2026

Last updated October 14, 2026, 08:32 Israel time

Ribbon render of hen egg-white lysozyme in a translucent surface (PDB 1LYZ)

6 stories were heating up that day

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Photocatalytic tetrapeptides enable enantioselective visible-light chemistry under 750 daltons

Ball-and-stick render of the gramicidin A peptide channel (PDB 1MAG)

Photo: BioLabs Research, rendered from PDB 1MAG (RCSB PDB, CC0) / own upload

Researchers at the Technical University of Munich and Helmholtz Munich reported in Nature Synthesis on 12 October photocatalytic tetrapeptides that place pyroglutamic-acid substrate recognition and a thioxanthone photocatalytic amino acid on a sub-750 Da scaffold. The catalysts were used for photochemical deracemization and enantioselective [2 + 2] photocycloaddition under visible light. The paper is a synthetic photocatalysis methods study, not a clinical report.

Nature SynthesisResearch Buzz

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Rhodium routing with a dual directing group builds tryptophan-crosslinked peptide macrocycles

Ball-and-stick render of the small protein crambin (PDB 1CRN)

Photo: BioLabs Research, rendered from PDB 1CRN (RCSB PDB, CC0) / own upload

Researchers at Princeton University reported in Nature Synthesis on 13 October a general rhodium-catalysed intramolecular transannular macrocyclization for tryptophan-crosslinked macrocyclic peptides. A dual-function nucleophilic pyridyl directing group, selected with mechanistic and computational guidance, can be installed, carried through peptide coupling and removed after cyclization. Demonstrations include the pharmacophores of micitide 982 and tryglysin as synthesis targets. The work is a chemical methods paper.

Nature SynthesisResearch Buzz

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Core-peptide length steers atropopeptide cross-links and a hop to diketopiperazine alkaloids

Cyclic peptide cyclosporin bound in the pocket of cyclophilin A (PDB 1CWA)

Photo: BioLabs Research, rendered from PDB 1CWA (RCSB PDB, CC0) / own upload

Researchers at Goethe University Frankfurt and ETH Zurich reported in the Journal of the American Chemical Society on 13 October that core-peptide length can determine which cross-linking pattern an atropopeptide-forming cytochrome P450 installs. They also describe proteolytic excision of an internal residue that lets mature products convert into pyrroloindoline-containing diketopiperazines. The study is RiPP biosynthesis and mechanism work on enzymatic systems.

Journal of the American Chemical SocietyResearch Buzz

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mRNA-display macrocycles map CHD4 as a hub in NuRD complex assembly

Zinc-finger protein domains wrapped around a DNA helix (PDB 1AAY)

Photo: BioLabs Research, rendered from PDB 1AAY (RCSB PDB, CC0) / own upload

Researchers at the University of North Carolina at Chapel Hill reported in the Journal of the American Chemical Society on 13 October that mRNA-display macrocyclic peptides can block the CHD4 SANT-SLIDE interaction with GATAD2A CR2 and pointed to a second CHD4 site that binds CDK2AP1. They purified and determined a structure of the CHD4–GATAD2A–CDK2AP1 ternary complex. The paper is structural and screening methods work on purified protein domains.

Journal of the American Chemical SocietyResearch Buzz

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Amphipathic peptoids ferry proteins and nanoparticles into cells and spheroids in the lab

Streptavidin with bound biotin shown in sticks (PDB 1STP)

Photo: BioLabs Research, rendered from PDB 1STP (RCSB PDB, CC0) / own upload

Researchers at the Gwangju Institute of Science and Technology and Sungshin Women's University reported in RSC Advances (Crossref record created 13 October) amphipathic peptoid transporters whose cellular uptake depends on sequence. The peptoids promoted accumulation of proteins and PLGA nanoparticles in monolayer cells and in 3D spheroids under laboratory assay conditions. The paper is a materials and in-vitro delivery methods study.

RSC AdvancesResearch Buzz

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Benchmark compares AI tools that predict and rank cyclic-peptide conformers

Photo: BioLabs Research, rendered from PDB 1MAG (RCSB PDB, CC0) / own upload

Researchers at Novo Nordisk R&D reported in RSC Medicinal Chemistry (Crossref record created 8 October) a comprehensive benchmark of AI and machine-learning tools for structure prediction of cyclic peptides, covering conformer prediction and ranking protocols. The study is a computational methods comparison for laboratories that model constrained peptide shapes. It does not report wet-lab or clinical programmes.

RSC Medicinal ChemistryResearch Buzz

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SK pharmteco commits more than $200 million to U.S. small-molecule and peptide capacity

Glass vacuum manifold and flasks in a chemistry fume hood

Photo: Serge Brière / Wikimedia Commons (Public domain) / own upload

SK pharmteco announced on 30 September 2026 a five-year U.S. investment plan of more than $200 million to expand development and manufacturing for small molecules and peptides. The company said the plan includes new development laboratories, GMP kilo-scale peptide capacity with advanced liquid chromatography targeted for late 2026, upgraded small-molecule manufacturing suites, and infrastructure and sustainability spending, and that it expects to create about 100 long-term skilled U.S. jobs. The release frames the programme as complementary to earlier California peptide, Ireland and South Korea investments.

SK pharmteco / GlobeNewswireIndustry

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PepAD package designs amyloid-forming self-assembling peptides from predefined backbones

Stacked beta-strands of an amyloid fibril render (PDB 2BEG)

Photo: BioLabs Research, rendered from PDB 2BEG (RCSB PDB, CC0) / own upload

Researchers at North Carolina State University reported in the Journal of Chemical Information and Modeling on 12 October a user-facing PepAD (Peptide Assembly Design) package: a Monte Carlo tool that designs self-assembling peptides from predefined amyloid backbones. Users can set initial structure, amino-acid composition and constraints; the paper walks through compiling, running and interpreting outputs, and illustrates antiparallel-fibril designs with and without single-site constraints. The work is computational software for materials-oriented peptide design.

Journal of Chemical Information and ModelingResearch

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Peptide-like DNA-encoded library of 403,200 compounds guided by building-block diversity model

Photo: BioLabs Research, rendered from PDB 1AAY (RCSB PDB, CC0) / own upload

Researchers at Uppsala University, KTH and SciLifeLab reported in ACS Medicinal Chemistry Letters on 12 October a three-cycle peptide-like DNA-encoded library of 403,200 compounds. A chemical-space model over 4,774 commercial amino-acid building blocks flagged underrepresented residues so the team could broaden physicochemical diversity before split-and-pool synthesis. Affinity selections against three purified protein targets, including carbonic anhydrase II, recovered a known sulfonamide pharmacophore. The paper is a library-design and selection methods report.

ACS Medicinal Chemistry LettersResearch

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PepOpt machine-learning framework ranks peptide sequences that include noncanonical amino acids

Data centre roof with rows of cooling towers

Photo: Rsparks3 / Wikimedia Commons (CC0) / own upload

Researchers at Texas Tech University and Merck Discovery Chemistry reported in npj Drug Discovery on 12 October PepOpt, an interpretable machine-learning framework that combines molecule-based and sequence-based peptide representations in linear models and uses dynamic programming to explore very large noncanonical amino-acid design spaces. Predictions decompose into residue-level contributions and can score ncAAs absent from training when their substructures are present. The study is computational methods work, not a clinical report.

npj Drug DiscoveryResearch

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Open dataset pairs peptide–HLA binding affinities with Rosetta structural ensembles

Peptide antigen, in orange sticks, held in the groove of an HLA protein (PDB 1AO7)

Photo: BioLabs Research, rendered from PDB 1AO7 (RCSB PDB, CC0) / own upload

Researchers at Vanderbilt University and Leipzig University reported in Scientific Data on 12 October a curated public dataset that pairs quantitative peptide–HLA class I binding affinities from the Immune Epitope Database with Rosetta FlexPepDock structural ensembles. The resource covers 95 HLA-A/B/C alleles, 25,622 unique peptides and 112,561 peptide–allele pairs, each with a 25-decoy ensemble. It is released to support training and benchmarking of structure-aware binding models and is a data-resource paper.

Scientific DataResearch

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Modular synthesis builds antimicrobial peptidomimetics that disrupt bacterial membranes

Stick and ribbon render of the antimicrobial peptide magainin 2 (PDB 2MAG)

Photo: BioLabs Research, rendered from PDB 2MAG (RCSB PDB, CC0) / own upload

Researchers at the University of Parma and the Helmholtz Centre for Infection Research reported in the Journal of Medicinal Chemistry on 8 October a library of antimicrobial peptidomimetics inspired by magainin-related and brilacidin-like designs. Side-chain length proved important for insertion into phospholipid bilayers. A modular route produced diverse analogues for structure–activity work; compounds were tested against clinically relevant pathogens in laboratory assays, with preliminary data pointing to a membranolytic mechanism. The study is synthetic and in vitro microbiology.

Journal of Medicinal ChemistryResearch

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