Results 51 to 60 of about 793,047 (255)

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Proteomic Analysis of the Venom from the Ruby Ant Myrmica rubra and the Isolation of a Novel Insecticidal Decapeptide

Insects, 2019
Ants are a biodiverse group of insects that have evolved toxic venom containing many undiscovered bioactive molecules. In this study, we found that the venom of the ruby ant Myrmica rubra is a rich source of peptides. LC-MS analysis revealed the presence
John Heep, Alica Klaus, Tobias Kessel, Maximilian Seip, Andreas Vilcinskas, Marisa Skaljac   +5 more
doaj   +1 more source

Specific Rab GTPase-activating proteins define the Shiga toxin and epidermal growth factor uptake pathways [PDF]

, 2007
Rab family guanosine triphosphatases (GTPases) together with their regulators define specific pathways of membrane traffic within eukaryotic cells. In this study, we have investigated which Rab GTPase-activating proteins (GAPs) can interfere with the ...
Evelyn Fuchs, Francis A. Barr, Yoshimura, S. I., Spooner, Robert A., Haas, A. K., Robert A. Spooner, Shin-ichiro Yoshimura, Hass, Alexander K., Fuchs, Evelyn, Lord, Mike, Barr, F. A., Fuchs, E., Lord, J. M., Haas, Alexander K., Spooner, R. A., J. Michael Lord, Alexander K. Haas, Yoshimura, Shin-ichiro, Barr, Francis A.   +18 more
core   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

Peptide Toxins from Antarctica: The Nemertean Predator and Scavenger Parborlasia corrugatus (McIntosh, 1876)

Toxins
Peptide toxins from marine invertebrates have found use as drugs and in biotechnological applications. Many marine habitats, however, remain underexplored for natural products, and the Southern Ocean is among them.
Erik Jacobsson, Adam A. Strömstedt, Håkan S. Andersson, Conxita Avila, Ulf Göransson   +4 more
doaj   +1 more source

Discovery of a Novel Nav1.7 Inhibitor From Cyriopagopus albostriatus Venom With Potent Analgesic Efficacy

Frontiers in Pharmacology, 2018
Spider venoms contain a vast array of bioactive peptides targeting ion channels. A large number of peptides have high potency and selectivity toward sodium channels.
Yunxiao Zhang, Dezheng Peng, Biao Huang, Qiuchu Yang, Qingfeng Zhang, Minzhi Chen, Mingqiang Rong, Zhonghua Liu   +7 more
doaj   +1 more source

Botulinum toxin-A for the treatment of overactive bladder: UK contributions [PDF]

, 2013
Background: Botulinum toxin-A (BoNT/A) is now established second-line management for refractory overactivebladder (OAB) and recognised in many incontinence guidelines and pathways.
Fowler, CJ, Panicker, J. N., Fowler, C. J., Dowson, C, Khan, MS, Seth, JH, Dasgupta, P, Dasgupta, P., Panicker, JN, Sahai, A, Dowson, C., Seth, J. H., Khan, M. S., Sahai, Arun   +13 more
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Molecular Characterization of a Three-disulfide Bridges Beta-like Neurotoxin from Androctonus crassicauda Scorpion Venom [PDF]

Archives of Razi Institute, 2019
Scorpion venom is the richest source of peptide toxins with high levels of specific interactions with different ion-channel membrane proteins. The present study involved the amplification and sequencing of a 310-bp cDNA fragment encoding a beta-like ...
A. Jolodar
doaj   +1 more source

A peptide filtering relation quantifies MHC class I peptide optimization [PDF]

, 2011
Major Histocompatibility Complex (MHC) class I molecules enable cytotoxic T lymphocytes to destroy virus-infected or cancerous cells, thereby preventing disease progression. MHC class I molecules provide a snapshot of the contents of a cell by binding to
Luca Cardelli, Goldstein, LD, Phillips, Andrew, Emmott, Stephen, Elliott, T, Mark Howarth, Werner, JM, Werner, Joern M., Leonard D. Goldstein, Andrew Phillips, Elliot, Tim, Dalchau, Neil, Goldstein, Leonard D., Cardelli, L, Cardelli, Luca, Tim Elliott, Dalchau, N, Emmott, S, Neil Dalchau, Howarth, M, Elliott, Tim, Leonard D Goldstein, Joern M. Werner, Phillips, A, Joern M Werner, Stephen Emmott, Howarth, Mark   +26 more
core   +1 more source