Biochemistry 4th Edition by Christopher Mathews,Kensal van Holde, Dean Appling, Spencer Anthony Cahill

Exercise 2

Note that some of these problems refer to information presented in the Tools of Biochemistry 5A-D.
The melanocyte-stimulating peptide hormone -melanotropin has the following sequence:
Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val
(a) Write the sequence using the one-letter abbreviations.
(b) Calculate the molecular weight of -melanotropin, using data in Table 5.1.