Which of the following forces stabilize protein primary structure at physiological pH? Proteins are synthesized in vivo by the translation of Since there are 20 standard amino acids, the number of possible linear polypeptides of length N can be expressed as Natural proteins most commonly contain linear polypeptides between 100 and 1000 residues in length

1. Which of the following forces stabilize protein primary structure at physiological pH?

Covalent bonds

2. Proteins are synthesized in vivo by the translation of

mRNA

3. Since there are 20 standard amino acids, the number of possible linear polypeptides of length N can be expressed as

20^n

4. Natural proteins most commonly contain linear polypeptides between 100 and 1000 residues in length. One of the reasons peptidee outside the range may be disfavored is

smaller polypeptides do no form stable folded structures

5. The vast majority of polypeptides contain between ___ amino acid residues

100 and 1000

6. Which of the following has the most dramatic influence on the characteristics of an individual protein?

the amino acid sequence

7. Which statement about insulin is incorrect?

insulin contains an interchain disulfide bond

8. Which of the following statements is true regarding SDS-PAGE

none

9. Identify which proteins elute together in a gel filtration experiment

1 & 2 and 4 & 5

10. Identify which proteins would migrate together during SDS-PAGE in the absense of 2-mercaptoethanol

2 & 3 and 4 & 5