Cellular Garbage Disposal Systems

Cells routinely degrade faulty proteins. There exist proteins whose functions relate to this task. Research at the University of North Carolina at Chapel Hill is focused on a protein known as the cystic fibrosis transmembrane conductance regulator or CFTR for short. The idea being to enable CFTR to form a functional shape and thereby treat the disease cystic fibrosis. Faulty CFTRs end up in a cellular trash bin known by a more scientific term called the ubiquitin proteasome pathway. Ubiquitin ligases and proteasomes are part of the system.

There would have been a point in time when no protein degradation systems existed. However as long as proteins are synthesized some will become faulty with respect to their function. Dysfunctional proteins can become more than simply cellular clutter. The can interfere with needed cellular functions.

IDers do not assume the sufficiency of a selection guided generating process. What type of cells would make the transition to cells with fully functional disposal systems. How would they have been described before and during the transition process?

Darwinism functions as the central cosmological myth of modern culture- as the centerpiece of a quasi-religious system that is known to be true a priori rather than as a scientific hypothesis that must submit to rigorous testing.- Phillip Johnson; Darwin on Trial.

Where is the rigorous testing for an evolved protein degradation system?