Diploma thesis Lutz Meyer
Background:
With more than 500 species, predatory cone snails (genus Conus)
form the largest living genus of marine animals.
The cone snails use complex venoms to capture prey. These venoms contain
conotoxins (small disulfide-rich peptides, generally 7-35 amino acids in
length), but also larger protein components that are mostly poorly characterized.
For background information:
McIntosh, Santos and Olivera/ "Conus peptides targeted
to specific nicotinic acetylcholine receptor subtypes) in Annu Rev Biochem
68, 59-88 (1999)
Craig, Bandyopadhyay and Olivera/ "Post-translationally
modified neuropeptides from Conus venoms" in Eur.J.Biochem.264, 271-275
(1999)
Olivera, Hillyard, Marsh and Yoshikami/ "Combinatorial
peptide libraries in drug design: Lessons from venomous cone snails" in
Tibtech 13, 422-426 (1995)
Project:
In collaboration with the group of Dr.
Edgar Heimer from the Centre for
Neurobiology in Querétaro and the group of Dr.Lourival
Possani of the
Instituto
de Biotecnología in Cuernavaca, both from the National
University of Mexico (Mexico), we started to characterize the venom of
the marine snail Conus
delessertii using protein chemical analysis and functional tests.