brain receptors

[BIE034 at news.salford.ac.uk]

I am interested in the seemingly taboo subject on the the interaction 
of psychedelic drugs with brain receptors. Much of the current research 
seems to be to prove a link between such drugs and brain damage, 
whereas few groups seem to study how the drugs mediate their bizarre 
effects. I remember seeing a TV programme (lay-mans stuff) that the 
drug MDMA interacts with at least 5 brain receptors (probably 5 
different 5-HT receptors). This would allow the wide spectrum of 
effects between the different psychedelics. Unfortunately I cannot seem 
to locate the any papers which suggest this. I would be grateful if 
anyone could direct me to the relevant papers and inform me whether 
there are structures for any of the proposed receptors. I appologise 
for posting such a controversial topic onto the newsgroup but I would 
be grateful for any assistance.

			Thanks
			Simon.