The science of mergence or when two become one.

The ubiquitous process of fertilization is well known for many species, but the exact molecular events are still far from beeing fully understood. One problem is, that most of the proteins involved differ greatly between species due to fast evolution, probably a mechanism to avoid unintended fertilization. But now, two groups have described the HAP2 protein as an almost ubiquitiously shared mediator between species. (Liu Y. et al. 2008; Genes & Development).
This not only broadens the understanding of this so important process immensely but also opens a possible rationale for future therapies. For example against malaria parasites, which use the same system to reproduce inside the moskito. A possible therapy targeting this molecule could therefore be an effective blockade against parasite reproduction.

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