Evidence for Intelligent Design in Cellular Waste Management- the Proteasome
Proteasomes are cellular waste management macromolecules. They are even barrell-shaped complexes, with a lid!
What does the proteasome do? Breaks down useless, used and damaged proteins/ enzymes (well any protein/ enzyme that is marked for destruction)- breaks them down into smaller amino acid chains so they can be used again to form some other protein/ enzyme.
Understanding/ knowing which proteins/ enzymes to degrade is key as these protein machines can degrade all proteins/ enzymes in the cell. We wouldn't want to have these binding to and degrading proteins/ enzymes at will.
So recycling the waste, the used, the damaged and the useless is the job of these barrel-shaped waste management machines. The number of components? Nineteen, well above the five needed for the mousetrap depicted in "Darwin's Black Box", meaning well above the reaches of blind, undirected chemical processes.
Bohn, Beck et al, “Structure of the 26S proteasome from Schizosaccharomyces pombe at subnanometer resolution,” Proceedings of the National Academy of Sciences published online before print November 22, 2010, doi: 10.1073/pnas.1015530107.