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Mass spectrometric characterisation and quantitation of selected low molecular mass compounds from the venom of Haplopelma lividum (Theraphosidae)

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

Moore, Sara, Smyth, Franklin, Gault, Victor, O'Kane, Edmund and McClean, Stephen (2009) Mass spectrometric characterisation and quantitation of selected low molecular mass compounds from the venom of Haplopelma lividum (Theraphosidae). RAPID COMMUNICATIONS IN MASS SPECTROMETRY, 23 (12). pp. 1747-1755. [Journal article]

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DOI: 10.1002/rcm.4063

Abstract

Arachnid venoms present a diverse and complex matrix for investigation, with their latent potential for innovative drug and pesticide design largely unrealised. The characterisation and quantification of selected low molecular mass compounds isolated from the crude venom of the Cobalt blue tarantula (Haplopelma lividum) were the objectives of this study. Fractionation of the crude venom was performed using reversed-phase high-performance liquid chromatography, with compound identification using both electrospray ionisation ion trap mass spectrometry and quadrupole time-of-flight mass spectrometry. Four compounds were identified, and quantification on a percentage dry weight basis was achieved by liquid chromatography/electrospray ionisation tandem mass spectrometry based on the formation of their corresponding product ions. Of these the most abundant component was glutamic acid, present at a level of 0.97%. Histamine and adenosine were detected at 0.14% and 0.10% dry weight, respectively, with the polyamine spermine noted in trace amounts at 0.002%. The limits of detection and quantification were established for each of the identified components. The fragmentation profile for histamine has also been proposed. Copyright (C) 2009 John Wiley & Sons, Ltd.

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 > Pharmaceutical Science and Practice
ID Code:1071
Deposited By:Prof W.Franklin Smyth
Deposited On:11 Jan 2010 11:49
Last Modified:04 May 2012 09:19

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