Please help! I’m stuck on this for school.
For unlimited access to Homework Help, a Homework+ subscription is required.
PLEASE HELP! Stuck on this biochem homework problem.
The lipid portion of a typical bilayer is about 30 Ã thick.
a) Calculate the minimum number of residues in an ?-helix required to span this distance.
b) Calculate the minimum number of residues in a ?-strand required to span this distance.
c) Explain why ?-helices are most commonly observed in transmembrane protein sequences when the distance from one side of a membrane to the other can be spanned by significantly fewer amino acids in a ?-strand configuration
Please help me I am stuck on my last question
You are the lucky student of a wacky professor who develops a time machine. He asks if you will test it with him. You get in and there is an immediate glitchâthe date readout fails so that when you land you are not sure what era you are in. As your time machine lands, you see an unusual landscape before you. As you open the door you realize you cannot breathe. You quickly shut the door, realizing you are in the _____.
1)
2)
3)
4)