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 ________ facilitate protein folding in vivo.

The signal recognition particle (SRP) is a [1], and its function is to [2].

A phylogenetic tree depicts ___________ of proteins.

Some proteins are synthesized as inactive precursors called ______.

[1] are involved in the nonselective degradation of extracellular and membrane proteins .   ATP-dependent degradation of ubiquitinated proteins  is mediated by [2].

In two homologous proteins, which residue is most likely to replace a Glu residue as a conservative substitution?

What are the four most abundant elements in a human body?

Put the following steps of GroEL-GroES chaperonin in order (from 1-5):  

Which of the following forces is favorable for protein folding?

Which amino acid substitution is likely to be least conservative?