Results 31 to 40 of about 27,739 (245)

Quantitation of Acetyl Hexapeptide-8 in Cosmetics by Hydrophilic Interaction Liquid Chromatography Coupled to Photo Diode Array Detection

Separations, 2021
Bioactive peptides are gaining more and more popularity in the research and development of cosmetic products with anti-aging effect. Acetyl hexapeptide-8 is a hydrophilic peptide incorporated in cosmetics to reduce the under-eye wrinkles and the forehead
Vasiliki Raikou, Eleni Kalogria, Athanasia Varvaresou, Efthimios Tsirivas, Irene Panderi   +4 more
doaj   +1 more source

Quantum Dots—Assisted 2D Fluorescence for Pattern Based Sensing of Amino Acids, Oligopeptides and Neurotransmitters

Sensors, 2019
Quantum dots (QDs) are very attractive nanomaterials for analytical chemistry, due to high photostability, large surface area featuring numerous ways of bioconjugation with biomolecules, usually high quantum yield and long decay times.
Marcin Zabadaj, Patrycja Ciosek-Skibińska   +1 more
doaj   +1 more source

Roles of Marine Shellfish Proteins with High Contents of Angiotensin-Converting Enzyme (ACE)-Binding Peptides in Nutrition Support for Hypertension

Applied Sciences, 2023
In this study, experimental tests, together with computer analyses, were carried out to identify the essential nutritional markers that can offer protein supplementation-based nutrition support for hypertension.
Li Yang, Tianyu Shu, Kai Wang, Zhen Yuan, Xuewu Zhang   +4 more
doaj   +1 more source

Structure and Function of a Multi‐Megadalton Virus‐Like Proteolytic Dodecahedron

Angewandte Chemie, EarlyView.
Zuzalysin, a virulence metallopeptidase of the periodontal pathogen Porphyromonas gingivalis, is secreted as a latent, flexible ≈95‐kDa monomer. Calcium triggers cysteine‐switch activation and hierarchical assembly into pentamers, bipentamers, tripentamers, and a ≈5.6‐MDa, ≈355‐Å dodecahedron. Structures at 1.8–3.6 Å reveal a virus‐sized catalytic cage
Mariusz Madej, Arturo Rodríguez‐Banqueri, Danuta Mizgalska, Borys Szmigielski, Zuzanna Nowakowska, Małgorzata Benedyk‐Machaczka, Monika Bzowska, Katarzyna Mikruta, Juan Sebastián Ramírez‐Larrota, Chinanu Agunanne, Olivier Julien, Anthony J. O'Donoghue, Carsten Scavenius, Mario López‐Martín, Enrique Marcos, Łukasz Koziej, Sebastian Glatt, Pablo Guerra, Ulrich Eckhard, Jan Potempa, F. Xavier Gomis‐Rüth   +20 more
wiley   +2 more sources

Record Dissymmetry in Vibrational Optical Activity: Combining Vibronic Coupling and Aggregation in Cobalt(II) Camphorate Complexes

Angewandte Chemie, EarlyView.
The cobalt(II) bis(trifluoroacetylcamphorate) scaffold exhibits versatile coordination chemistry with solvent‐driven ligand exchange and geometrical rearrangements, associated with unique chiroptical properties. Microcrystalline suspension of [Co(tfc)2(CH3CN)2] revealed the largest VCD dissymmetry factor ever reported (g ≈ 0.2 at 1600 cm−1), arising ...
Gianmarco Papi, Massimo Guelfi, Stefano Zacchini, Fabio Marchetti, Gennaro Pescitelli   +4 more
wiley   +2 more sources

Branched-Chain Amino Acid (BCAA) Oligopeptide Determination from Whey Proteins: Preparation, Peptide Profiles, and Anti-Fatigue Activity

Foods
Whey proteins have anti-fatigue activity, but there are few studies that have reported the ameliorative effects of branched-chain amino acid (BCAA) oligopeptides from whey proteins on fatigue in mice.
Qiong Zhu, Renjie Zhou, Xiping Zhu, Xiangru Lu, Binli Ai, Qibin Zhuang, Chun Cui   +6 more
doaj   +1 more source

The C‐terminal truncated splicing variant of NK1R negatively modulates substance P‐stimulated NK1R signaling

FEBS Open Bio, EarlyView.
The neurokinin 1 receptor exists as full‐length (NK1L) and C‐terminally truncated (NK1S) splice variants. We show that NK1S heterodimerizes with NK1L, impairing Gαq coupling and Ca2+ mobilization while enhancing β‐arrestin1 recruitment. NK1S suppresses substance P‐driven gene expression and cell migration, revealing NK1S as an endogenous biased ...
Lan Phuong Nguyen, Duc Trung Nguyen, Minyoung Cho, Jihun Kim, Soyeon In, Thai Uy Nguyen, Sunghoon Hurh, Beom Jin Park, Jong‐Ik Hwang   +8 more
wiley   +1 more source

Deep Learning Empowers the Discovery of Self‐Assembling Peptides with Over 10 Trillion Sequences

Advanced Science, 2023
Self‐assembling of peptides is essential for a variety of biological and medical applications. However, it is challenging to investigate the self‐assembling properties of peptides within the complete sequence space due to the enormous sequence quantities.
Jiaqi Wang, Zihan Liu, Shuang Zhao, Tengyan Xu, Huaimin Wang, Stan Z. Li, Wenbin Li   +6 more
doaj   +1 more source

Isolation and Characterisation of Aeruginosin and Microviridin variants from Microcystis species CAWBG11 [PDF]

, 2014
The cyanobacterial strain Microcystis species CAWBG11 was investigated in order to isolate and characterise bioactive oligopeptides such as aeruginosins and microviridins.
Kaufononga, Sangata Ana Fiealu
core  

Self-organizing bioinspired oligothiophene–oligopeptide hybrids

Beilstein Journal of Nanotechnology, 2011
In this minireview, we survey recent advances in the synthesis, characterization, and modeling of new oligothiophene–oligopeptide hybrids capable of forming nanostructured fibrillar aggregates in solution and on solid substrates.
Alexey K. Shaytan, Eva-Kathrin Schillinger, Elena Mena-Osteritz, Sylvia Schmid, Pavel G. Khalatur, Peter Bäuerle, Alexei R. Khokhlov   +6 more
doaj   +1 more source