#Question id: 20987
#Unit 12. Applied Biology
#Question id: 886
#Unit 1. Molecules and their Interaction Relevant to Biology
An experiment of Anfinsen on ribonuclease A (RNase A) showed that proteins can be denatured reversibly by 2-mercaptoethanol and 8 M urea. The protein must therefore renature spontaneously;
a) Remove mercaptoethanol and then removal of the urea
b) Removal of the mercaptoethanol allows the protein to re-form disulfide bonds in the presence of oxygen and then removal of the urea
c) Removal of the denaturant (urea) and reductant (mercaptoethanol) allows the protein to renature and re-form disulfide bonds in the absence of oxygen
d) Adding a small amount of mercaptoethanol to the scrambled protein in the absence of O2 catalyzes its conversion to the active enzyme
Which one of the following steps will leads to regaining of the full activity of ribonuclease A (RNase A)
#Question id: 817
#Unit 1. Molecules and their Interaction Relevant to Biology
The aggregation of nonpolar side chains in the interior of a protein is favored by
#Question id: 5133
#Unit 5. Developmental Biology
Identify the correct ligands in both receptor serine kinase pathway.
#Question id: 1236
#Unit 4. Cell Communication and Cell Signaling
Arrange the following events in the proper order in which they occur during transduction of the TNF-α signal
a. phosphorylation of I-κB
b. binding of E3 ubiquitin ligase to I-κB
c. polyubiquitination of I-κB
d. nuclear localization of NF-κB
e. activation of TAK1 kinase