Results 11 to 20 of about 183,535 (259)

A novel Kv1.1 potassium channel blocking toxin from the venom of Palamneus gravimanus (Indian black scorpion)

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2005
A peptide toxin was isolated from the venom of Palamneus gravimanus, the Indian black scorpion, to block human Kv1.1 channels expressed in Xenopus laevis oocytes.
S. S. More   +4 more
doaj   +1 more source

Identification of Novel Toxin Genes from the Stinging Nettle Caterpillar Parasa lepida (Cramer, 1799): Insights into the Evolution of Lepidoptera Toxins

open access: yesInsects, 2021
Many animal species can produce venom for defense, predation, and competition. The venom usually contains diverse peptide and protein toxins, including neurotoxins, proteolytic enzymes, protease inhibitors, and allergens.
Natrada Mitpuangchon   +3 more
doaj   +1 more source

Characterization and evaluation of the enzymatic activity of tetanus toxin submitted to cobalt-60 gamma radiation [PDF]

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2021
Background Tetanus toxin blocks the release of the inhibitory neurotransmitters in the central nervous system and causes tetanus and its main form of prevention is through vaccination.
Giselle Pacifico Sartori   +7 more
doaj   +1 more source

Peptides as toxins/defensins [PDF]

open access: yesAmino Acids, 2010
Sao Paulo State Univ, UNESP, Inst Biosci Rio Claro, Dept Biol,Ctr Study Social Insects CEIS, BR-13506900 Rio Claro, SP ...
openaire   +3 more sources

Cyanobacterial Toxins and Peptides in Lake Vegoritis, Greece [PDF]

open access: yesToxins, 2021
Cyanotoxins (CTs) produced by cyanobacteria in surface freshwater are a major threat for public health and aquatic ecosystems. Cyanobacteria can also produce a wide variety of other understudied bioactive metabolites such as oligopeptides microginins (MGs), aeruginosins (AERs), aeruginosamides (AEGs) and anabaenopeptins (APs). This study reports on the
Sevasti-Kiriaki Zervou   +8 more
openaire   +3 more sources

Cloning and Characterization of a Cyclic Peptide Synthetase Gene from Alternaria alternata Apple Pathotype Whose Product Is Involved in AM-Toxin Synthesis and Pathogenicity

open access: yesMolecular Plant-Microbe Interactions, 2000
Alternaria alternata apple pathotype causes Alternaria blotch of susceptible apple cultivars through the production of a cyclic peptide host-specific toxin, AM-toxin.
R. D. Johnson   +5 more
doaj   +1 more source

High yield production and refolding of the double-knot toxin, an activator of TRPV1 channels. [PDF]

open access: yesPLoS ONE, 2012
A unique peptide toxin, named double-knot toxin (DkTx), was recently purified from the venom of the tarantula Ornithoctonus huwena and was found to stably activate TRPV1 channels by targeting the outer pore domain.
Chanhyung Bae   +6 more
doaj   +1 more source

Tethered peptide toxins for ion channels

open access: yes, 2021
In this method paper, we describe protocols for using membrane-tethered peptide toxins (T-toxins) to study the structure/function and biophysics of toxin-channel interactions with two-electrode voltage clamp (TEVC). Here, we show how T-toxins can be used to determine toxin equilibrium affinity, to quantify toxin surface level by enzyme-linked ...
Zhao, Ruiming, Goldstein, Steve AN
openaire   +4 more sources

An in silico insight into novel therapeutic interaction of LTNF peptide-LT10 and design of structure based peptidomimetics for putative anti-diabetic activity. [PDF]

open access: yesPLoS ONE, 2015
Lethal Toxin Neutralizing Factor (LTNF) obtained from Opossum serum (Didephis virginiana) is known to exhibit toxin-neutralizing activity for envenomation caused by animals, plants and bacteria.
Sonali Gopichand Chavan   +1 more
doaj   +1 more source

Molecular Diversity of Peptide Toxins in the Venom of Spider Heteropoda pingtungensis as Revealed by cDNA Library and Transcriptome Sequencing Analysis

open access: yesToxins, 2022
The venoms of toxic animals are chemical pools composed of various proteins, peptides, and small organic molecules used for predation and defense, in which the peptidic toxins have been intensively pursued mining modulators targeting disease-related ion ...
Qingyi Liao   +7 more
doaj   +1 more source

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