Snakes aggregation

Graves B.M., Halpem M. and Friesen J.L. (1991). Snake aggregation pheromones source and chemosensory mediation in Western Ribbon snakes (Thamnophis proximus). J Comp Psychol 105, 140-144. 

Heller, S, B, 1982, The Role of the Vomeronasal Organ in Garter Snake Aggregation and Shelter Selection, PhD Diss., SUNY Brooklyn, NY, 143p. 

Several species of small snakes aggregate in heterospecific groups to reduce cutaneous water loss (Burghardt, 1983 Dundee and Miller, 1968 ... 

Aggregation and species discrimination in newborn snakes. ZeitschriftfurTierpsy-chologieSl, 89-101. 

Eyck, G. T. and Halpern, M. (1988). Aggregation in infant corn snakes Elapheguttata) and garter snakes (Thamnophis radix). Chemical Senses 13,740. 

It seems that (PhCH=CHPh)2, 2Na+ is also capable of existing in the polymeric form in a THF solution. This salt is a typical initiator in the polymerization of unsaturated compounds such as isoprene and methylstyrene. In THF such polymerization can include the detachment or fixation (chemisorption) of a framing (terminal) link from the polymeric aggregate [(PhCH=CHPh)2, 2Na+] . Methylstyrene captures the come-off link, starting the polymerization process. The link and, probably, [(PhCH=CHPh)2, 2Na+] i oligomer are included in a polymeric globule. The situation resembles a snake in a cage. In experiments (Podol sky and others 1982), a-methylstyrene was polymerized in THF upon the action of [(PhCH=CHPh)2, 2Na+] labeled with 3H, 14C in the presence of nonla-beled PhCH=CHPh. The authors obtained a polymer that contains the whole amount of the label. In the case of the mixture of nonlabeled [(PhCH=CHPh)2, 2Na+] with labeled PhCH=CHPh in THF, the polymer obtained did not contain any label. 

Dennis, M.S., Henzel, W.J., Pitti, R.M., Lipari, M.T., Napier, M.A, Deisher, T.A., and Bunting, S. (1990). Platelet glycoprotein Ilb-IIIa antagonists from snake venoms Evidence for a family of platelet-aggregation inhibitors. Proc. Natl. Acad. Sci. USA. 57 2471-2475. 

Kamiguti, A.S., Hay, C.R., and Zuzel, M. (1996). Inhibition of collagen-induced platelet aggregation as the result of cleavage of a P.-integrin by the snake venom metalloproteinase jararhagin. Biochem... 

Kini, R.M. and Evans, H.J. (1992). Structural domains in venom proteins Evidence that metalloproteinases and nonenzymatic platelet aggregation inhibitors (disintegrins) from snake venoms are derived by proteolysis from a common precursor. Toxicon. 50 1-29. 

Platelet-aggregating factor found in the venom of the snake Crotalus durissus. 

Serine protease platelet-aggregating factor found in venom of the snake Bothrops atrox. 

---