Benjamin F. Cravatt & Astrid Graslund 
Introduction to Peptides and Proteins [PDF ebook] 

Human cells produce at least 30, 000 different proteins. Each has a specific function characterized by a unique sequence and native conformation that allows it to perform that function. While research in this post-genomic era has created a deluge of invaluable information, the field has lacked for an authoritative introductory text needed to inform