Project description:This project mainly aims to characterize the complex toxic components present in the venom of Trimeresurus malabaricus (Malabar pit viper). Since Trimeresurus malabaricus (Malabar pit viper) species are mainly inhabited to plantation crop areas, its envenomation is a serious threat to the human population thriving in these zones, especially to the plantation workers. Therefore, exploring the venom proteome of Malabar pit viper is decisive to develop and design new antivenom and therapeutics against its envenomation. As described in this study, applying various orthogonal separation strategies helped in dissecting venom constituents of Trimeresurus malabaricus and is the first comprehensive attempt in revealing the complex venom profile of Malabar pit viper through proteomics approaches incorporating multiple database searches. In order to achieve this the crude venom components were resolved on a 12% SDS page. Further each of the bands were subjected to in-gel trypsin digestion. The crude venom was also subjected to ion-exchange chromatography separation. The obtained fractions were subjected to in-solution trypsin digestion. All the digested peptides were then subjected to Q-TOF LC-MS/MS analysis.
Project description:In order to provide a global insight on the transcripts expressed in the venom gland of the Brazilian ant species Tetramorium bicarinatum and to unveil the potential of its products, high-throughput expressed sequence tags were generated using Illumina paired-end sequencing technology. A total of 212,371,758 pairs of quality-filtered, 100-base-pair Illumina reads were obtained. The de novo assemblies yielded 36,042 contigs for which 27,873 have at least one predicted ORF among which 59.77% produce significant hits in the available databases. The investigation of the reads mapping toxin class revealed a high diversification with the major part consistent with the classical hymenopteran venom protein signature represented by venom allergen (33.3%) followed by a diverse toxin-expression profile including several distinct isoforms of phospholipase A1 and A2, venom serine protease, hyaluronidase, protease inhibitor and secapin. Moreover, our results revealed for the first time the presence of toxin-like peptides that have been previously identified from unrelated venomous animals such as waprin-like (snakes) and agatoxins (spiders and conus). 300 ant specimens from the species Tetramorium bicarinatum were dissected in order to extract the RNA from their venom gland, The whole ant body was used as a reference,
Project description:Venom-gland transcriptomics of the Malayan Pit Viper (Calloselasma rhodostoma) for identification, classification, and characterization of venom proteins
Project description:Hypnale hypnale (hump-nosed pit viper) is considered to be one among the medically important venomous snake species of India and Sri Lanka. In the present study, venom proteome profiling of a single Hypnale hypnale from Western Ghats of India was achieved using SDS-PAGE based protein separation followed by LC-MS/MS analysis
Project description:In this study two Viperidae species, living in two different habitats, the horned desert viper (Cerastes cerastes) native to the deserts in North Africa and in turn the mangrove pit viper (Cryptelytrops purpureomaculatus), which can be found in South/Southeast Asia, were studied in terms of the identification of the venom proteome.