Which of the following is the downstream signaling protein for the tradd-associated complex in the cell survival path of tnf signaling? a. ikk
b. traf2
c. nik
d. rip

The correct answer is - option A. IKK.

Explanation:

In signal transduction or any other molecular biology process, the upstream or downstream is related to the molecular or cellular events that follow a mechanistic and temporal order.

In TNF signaling involved in cell survival pathway the TRADD- associated complex also is known as TNF receptor-associated death domain complex has a second messenger that activates temporally after the cell membrane receptor known as IKK signaling protein that help in numerous downstream pathways.

Thus, the correct answer is - option A. IKK.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.