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Unmasking venom gland transcriptomes in reptile venoms

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Chen, TB, Bjourson, AJ, Orr, DF, Kwok, H, Rao, PF, Ivanyi, C and Shaw, C (2002) Unmasking venom gland transcriptomes in reptile venoms. ANALYTICAL BIOCHEMISTRY, 311 (2). pp. 152-156. [Journal article]

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URL: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6W9V-476KB72-5&_user=126978&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000010438&_version=1&_urlVersion=0&_userid=126978&md5=ff47d6893ed576347baaea31586848fb

Abstract

While structural studies of reptile venom toxins can be achieved using lyophilized venom samples, until now the cloning of precursor cDNAs required sacrifice of the specimen for dissection of the venom glands. Here we describe a simple and rapid technique that unmasks venom protein mRNAs present in lyophilized venom samples. To illustrate the technique we have RT-PCR-amplified a range of venom protein transcripts from cDNA libraries derived from the venoms of a hemotoxic snake, the Chinese copperhead (Deinagkistrodon acutus), a neurotoxic snake, the black mamba (Dendroaspis polylepis), and a venomous lizard, the Gila monster (Heloderma suspectum). These include a metalloproteinase and phospholipase A2 from D. acutus, a potassium channel blocker, dendrotoxin K, from D. polylepis, and exendin-4 from H. suspectum. These findings imply that the apparent absence and/or lability of mRNA in complex biological matrices is not always real and paves the way for accelerated acquisition of molecular genetic data on venom toxins for scientific and potential therapeutic purposes without sacrifice of endangered herpetofauna. (C) 2002 Elsevier Science (USA). All rights reserved.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Stratified Medicine
ID Code:1935
Deposited By:Mrs Caroline Adams
Deposited On:30 Nov 2009 09:37
Last Modified:14 Oct 2013 15:31

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