If a user-specific venom managed to work by liquefying the phospholipid membranes of animal cells, how would it be produced? (It would act more like a venom in this case.)
By specific, I mean that the venom would work on all cells except the cells of the animal who produced it, even within an individual within a species:
- animal 1 made it
- animal 2 would die from it
- animal 1's offspring would die from it
- yet animal 1 is resistant
The problem is that to be released, it couldn't be moved out of the cell where it was produced (since it would destroy the cell) and couldn't be transported. What's more, if it was DNA specific, it would already have dissolved the cell before stopping. And to be resistant, the protein would have to become less effective (i.e, misfolding or denaturing itself so as not to further dissolve fats). The venom would have to be specific enough that no other organism could develop resistance to the venom.
How could such an acid-like substance be produced by a creature and be so specific, so that the individual member of the species would be the only one resistant?
The offspring of individual 1 would have their own variant that would kill their parents, and the variants of the parent would kill their offspring. The venom is not only DNA specific to common genotype characteristics but also to an individual. This, of course, is where the "magic" comes in since transporting the venom to the DNA of the individual cell wouldn't work. And using the mRNA strand that had the codons for the polypeptide chain form of the venom wouldn't work, since the venom itself is unchanging from individual to individual(it's just the resistance against the specific venom that changes from individual to individual), and scrambling the antigens on the protein won't work; this is an enzyme, not a surface-receptor protein.*
The "magic" part is that although the structure of the molecule is unchanging, it has this individual specificity. My problem is transporting the molecule out of the cell and without destroying it.