Results 241 to 250 of about 129,894 (264)

Collagenolytic activity of snake and spider venoms

Toxicon, 1967
Abstract The venoms of the snakes B. atrox , B. Jararaca , C. durissus , A. piscivorus , and the spiders P. fera , L. erythrognatha possess proteolytic activity which attacks gelatine, casein and azocoll. Denatured (heat, urea) collagen is digested too. However, native collagen is not attacked by the enzymes present in the venoms investigated.
W. Raab, E. Kaiser
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The Acylpolyamines from Spider Venoms

2012
Abstract Acylpolyamines are low molecular mass toxins occurring exclusively in the venoms from solitary wasps and some groups of spiders. Their chemical structures have been elucidated using hyphenated techniques of mass spectrometry, such as LC–MS and MS/MS, or through direct analysis with different types of NMR analyses.
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Proteome and peptidome profiling of spider venoms

Expert Review of Proteomics, 2008
Spider venoms are an important source of novel molecules with different pharmacological properties. Recent technological developments of proteomics, especially mass spectrometry, have greatly promoted the systematic analysis of spider venom. The enormous diversity of venom components between spider species and the lack of complete genome sequence, and ...
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New linear polyamine derivatives in spider venoms

Toxicon, 2005
Linear free polyamines were characterized in the venom of the spiders Agelenopsis aperta, Hololena curta, and Paracoelotes birulai by RP-HPLC coupled to mass spectrometry. The several linear polyamines found were tetramine, pentamine, and hexamine derivatives. Some of these natural products were identified as N-hydroxylated, guanidylated, or acetylated
Tzouros, Manuel, Chesnov, Sergiy, Bienz, Stefan, Hesse, Manfred, Bigler, Laurent   +4 more
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Spider venom: An insecticide whose time has come?

, 2017
When it comes to solving difficult insect problems, it helps to consult an expert. For example, you could ask Hadronyche versuta, the Blue Mountains funnel-web spider.
M. Bomgardner
semanticscholar   +1 more source

Toxic and Allergic Reaction to Spider Venom

Journal of Asthma Research, 1976
(1976). Toxic and Allergic Reaction to Spider Venom. Journal of Asthma Research: Vol. 13, No. 4, pp. 185-185.
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More in spider venom than venom?

The Lancet, 1990
BerylA. Oppenheim, Ian Taggart
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Polypeptide neurotoxins from spider venoms

European Journal of Biochemistry, 1999
Spider venoms contain a variety of toxic components. The polypeptide toxins are divided into low and high molecular mass types. Small polypeptide toxins interacting with cation channels display spatial structure homology. They can affect the functioning of calcium, sodium, or potassium channels.
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Neuroactive Toxins of Spider Venoms

Journal of Toxicology: Toxin Reviews, 1991
AbstractA variety of neuroactive toxins have been found in the venom of spiders. The venom of Latrodectus mactans(black widow spider) is known as a potent neurotoxin, fatal to humans and animals. The effective component, α-latrotoxin (Mr=130,000) acts on the nerve terminals, causing massive release of transmitters and depletion of the synaptic vesicles,
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Protocols for Peptidomic Analysis of Spider Venoms

2009
Spider venom contains a complex mixture of components with a large range of molecular masses (0.1-60 kDa) exhibiting a diverse array of actions. Most of these components are proteinaceous molecules - biologically active proteins and peptides. Proteomics profiling of spider venoms (the components with MW >10 kDa) could be achieved through conventional 2-
openaire   +3 more sources