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Toxicology Letters, 2019 Australian elapid snakes are some of the most venomous snakes in the world and are unique among venomous snakes in having mutated forms of the blood clotting factor X in an activated form (FXa) as a key venom component. In human bite victims, an overdose
Bryan Grieg Fry +2 more
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Acetylcholinesterase in Elapid Snakes
1998Acetylcholinesterase (AChE) plays a key role in cholinergic transmission, but is also present in non-cholinergic contexts where its function is not clearly known (1). This is the case in pulmonary and intestinal epitheliums, salivary glands, or blood cells surface. AChE is a very abundant protein in the venom of some Elapids snakes (2–3).
Xavier Cousin +4 more
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Prey transport in “palatine‐erecting” elapid snakes
Journal of Morphology, 2003AbstractCobras and mambas are members of a group of elapid snakes supposedly united by the morphology and inferred behavior of their palatine bone during prey transport (palatine erectors). The palatine erectors investigated (Dendroaspis polylepis, Naja pallida, Ophiophagus hannah, Aspidelaps scutatus, A. lubricus) show differences in the morphology of
Alexandra, Deufel, David, Cundall
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Non-conventional toxins from Elapid venoms
Toxicon, 2003Non-conventional toxins constitute a poorly characterized class of three-finger toxins isolated exclusively from Elapidae venoms. These toxins are monomers of 62-68 amino acid residues and contain five disulfide bridges. However, unlike alpha/kappa-neurotoxins and kappa-neurotoxins which have the fifth disulfide bridge in their middle loop (loop II ...
Nirthanan, S +4 more
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Clinical Aspects of Elapid Bite
1971Although the elapid family comprises numerous species, the rationale of dealing with the clinical aspects of their bites jointly is their having in common neurotoxic symptomatology as the preponderant feature. In this characteristic they differ from the Viperidae and the Crotalidae whose bites mainly produce blood clotting disturbances, hemorrhage, and
André de Vries, Eleanor Condrea
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Proteins toxic to arthropods in the venom of elapid snakes
Journal of Insect Physiology, 1975It has been found that the lethal action of elapid snake venoms to arthropods (fly larvae and isopods) is due to proteic factors differing from the toxins which are strongly and specifically active on mammals. This conclusion was based on the following: (1) Lack of any correlation between the toxic activity on larvae, isopods, and mice of ten elapid
E, Zlotkin +4 more
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Properties of some 3-nitrotyrosyl elapid venom cardiotoxins
International Journal of Biochemistry, 1987Nitration of the invariant Tyr-22 in Hemachatus haemachates cardiotoxin 12B did not greatly decrease lethality, and the haemolytic potency towards guinea-pig erythrocytes remained unchanged. This residue is thus non-essential for cardiotoxin to exert its biological action.
F H, Carlsson, A I, Louw
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Identification and discrimination of snake venoms from Egyptian elapids
Toxicon, 2013The avidity to the corresponding antigens is often higher than to the cross-reactive antigens. This was demonstrated with the highly cross-reactive elapid Egyptian snake venoms Naja haje (Nh), Naja nigricollis (Nn) and Walterinnesia aegyptia (Wa), and used for the differentiation among the three species in a simple ELISA-based assay.
Nihal Ibrahim
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A comparative study of the biological properties of Australian elapid venoms
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 19901. The hemorrhagic, procoagulant, anticoagulant, protease, phosphodiesterase, alkaline phosphomonoesterase, L-amino acid oxidase, acetylcholinesterase, arginine ester hydrolase, phospholipase A, 5'-nucleotidase and hyaluronidase activities of 39 samples of venoms from 13 species (15 taxa) of Australian elapids were determined and the Sephadex G-75 gel ...
N H, Tan, G, Ponnudurai
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Paraspecific protection by elapid and sea snake antivenins
Toxicon, 1967Abstract Seventeen elapid antivenins and one sea snake antivenin were tested for neutralizing activity against a panel of fifteen elapid venom samples (eight Naja, three Bungarus, one each of Ophiophagus, Hemachatus, Walterinnesia and Micrurus) and one sea snake (Enhydrina) sample. Assays were made by injecting mice subcutaneously with 2–10 ld 50 of
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