Pulse-chase protein production

I don't know what this heading is supposed to mean. Labeling? Production?

When hearing this title, the first thing that would come to my mind is to use a synthetic gene regulatory network, perhaps a puslation or oscillator device, to control expression of a heterologous protein. Maybe such a system can be developed to help overcome inclusion body formation; a system which checks the level of chaperons before producing more recombinant protein. Thats my wild guess of what Pulse-chase could mean -Devin