Examples of irreducible complexity?

[glipsnort (Steve Schaffner)]

@Vanengelen

Yes, this is what I argue. Not for all antibodies but for a subset, may be. Catalytic activity can be useful. To have catalytic antibodies can be very powerful in not only binding but also break down the substrate.

Evidence that catalysis is actually functional in living systems?

@Vanengelen

To think that catalytic antibodies arise from random peptides is a mistake.

And yet the dipeptide seryl-histidine shows catalytic activity, as do random 12-AA peptides when attached to phage (Discovery of Catalytic Phages by Biocatalytic Self-Assembly - PMC). Catalytic activity seems to pop up all over the place.