Results 91 to 100 of about 13,388 (229)

CSTX-1, a toxin from the venom of the hunting spider Cupiennius salei, is a selective blocker of L-type calcium channels in mammalian neurons [PDF]

, 2007
The inhibitor cystine-knot motif identified in the structure of CSTX-1 from Cupiennius salei venom suggests that this toxin may act as a blocker of ion channels.
Beirão, PSL, Boehm, S, Chong, Y, Cruz, JS, Kubista, H, Kuhn-Nentwig, L, Mafra, RA, Nentwig, W, Nicholson, GM   +8 more
core   +1 more source

Highlights in the knowledge of brown spider toxins

Journal of Venomous Animals and Toxins including Tropical Diseases, 2017
Brown spiders are venomous arthropods that use their venom for predation and defense. In humans, bites of these animals provoke injuries including dermonecrosis with gravitational spread of lesions, hematological abnormalities and impaired renal function.
Daniele Chaves-Moreira, Andrea Senff-Ribeiro, Ana Carolina Martins Wille, Luiza Helena Gremski, Olga Meiri Chaim, Silvio Sanches Veiga   +5 more
doaj   +1 more source

An Economic Dilemma between Molecular Weapon Systems May Explain an Arachno-Atypical Venom in Wasp Spiders (Argiope bruennichi)

Biomolecules, 2020
Spiders use venom to subdue their prey, but little is known about the diversity of venoms in different spider families. Given the limited data available for orb-weaver spiders (Araneidae), we selected the wasp spider Argiope bruennichi for detailed ...
Tim Lüddecke, Björn M. von Reumont, Frank Förster, André Billion, Thomas Timm, Günter Lochnit, Andreas Vilcinskas, Sarah Lemke   +7 more
doaj   +1 more source

The impacts of biological invasions

Biological Reviews, Volume 101, Issue 3, Page 1255-1310, June 2026.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock, Teun Everts, Neil Angelo S. Abreo, Jamie Bojko, Victor Deklerck, James W. E. Dickey, Ana Clara S. Franco, Emili García‐Berthou, Stelios Katsanevakis, Natalia I. Kirichenko, Stefano Mammola, Martin A. Nuñez, Ben Parker, Riccardo Scalera, Ismael Soto, Diederik Strubbe, Ali Serhan Tarkan, Lorenzo Vilizzi, Tim Adriaens, Paride Balzani, Dagmara Błońska, Elizabeta Briski, Rein Brys, Amy L. Burgess, James E. Byers, Carlos Cano‐Barbacil, Giuseppe Castaldelli, Jaimie T.A. Dick, Victoria Dominguez Almela, Romina D. Dimarco, Margarita Florencio, Antonín Kouba, Melina Kourantidou, Irmak Kurtul, Irene Martín‐Forés, Olivier Morissette, Julian D. Olden, Bruno E. Soares, Jakub Truszkowski, Hugo Verreycken, Marc Kenis, Ronaldo Sousa, J. Robert Britton   +42 more
wiley   +1 more source

ArachnoServer 2.0, an updated online resource for spider toxin sequences and structures [PDF]

, 2011
ArachnoServer (www.arachnoserver.org) is a manually curated database providing information on the sequence, structure and biological activity of protein toxins from spider venoms.
Binford, G, Chaumeil, P, Gorse, D, Herzig, V, Kaas, Q, King, G, Newell, F, Nicholson, G, Wood, D   +8 more
core   +1 more source

Role Identity and Professional Identity: Educators' Experiences During Wartime

European Journal of Education, Volume 61, Issue 2, June 2026.
ABSTRACT The study explores role identity and professional identity of educators as manifested in a crisis zone of war. The concept of identity is debated with researchers and theorists challenging the notion of a fixed, unchanging identity. Instead, identity is seen as fluid, constantly being formed and transformed.
Shosh Leshem, Gadi Bialik, Sari Alfi‐Nissan, Tamar Chen‐Levy, Ravit Mizrahi‐Shtelman, Michal Bar‐Ner Afik   +5 more
wiley   +1 more source

Pharmacology of spider venom toxins

Toxin Reviews, 2014
AbstractSpider venom is an intricate combination of target specific enzymatic and non-enzymatic toxins. In addition, the venom also contains polyamine neurotoxins, ATP, AMP, ADP, guanosine, 2,4,6-trihydroxy purine, γ-aminobutyric acid, glutamic acid, aspartic acid, taurine, histamine, serotonin, tyramine, octomine, nor-adrenaline and inorganic salts ...
Sannaningaiah, D., Subbaiah, G. K., Kempaiah, K.   +2 more
openaire   +2 more sources

Hypotheses for the Adaptive Maintenance of Phenotypic Polymorphisms

Ecology and Evolution, Volume 16, Issue 5, May 2026.
Phenotypic polymorphisms offer easily observable diversity ideal for empirical and theoretical exploration, but developing and comparing hypotheses for the adaptive maintenance of polymorphism can be a challenge. Here, we propose a framework categorizing polymorphisms based on (i) one of five distinct types of maintenance selection and (ii) the context
Jay J. Falk, Michael S. Webster, Dustin R. Rubenstein   +2 more
wiley   +1 more source

In silico structural evaluation of short cationic antimicrobial peptides [PDF]

, 2018
© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).Cationic peptides with ...
Malkinson, John, Passarini, Ilaria, Rossiter, Sharon, Zloh, Mire   +3 more
core   +3 more sources

Spider Neurotoxins, Short Linear Cationic Peptides and Venom Protein Classification Improved by an Automated Competition between Exhaustive Profile HMM Classifiers

Toxins, 2017
Spider venoms are rich cocktails of bioactive peptides, proteins, and enzymes that are being intensively investigated over the years. In order to provide a better comprehension of that richness, we propose a three-level family classification system for ...
Dominique Koua, Lucia Kuhn-Nentwig
doaj   +1 more source