proteolysis


pro·te·ol·y·sis

noun \ˌprō-tē-ˈä-lə-səs\

Definition of PROTEOLYSIS

:  the hydrolysis of proteins or peptides with formation of simpler and soluble products

Origin of PROTEOLYSIS

New Latin
First Known Use: 1880

pro·te·ol·y·sis

noun \ˌprōt-ē-ˈäl-ə-səs\   (Medical Dictionary)
plural pro·te·ol·y·ses \-ˌsēz\

Medical Definition of PROTEOLYSIS

: the hydrolysis of proteins or peptides with formation of simpler and soluble products (as in digestion)

proteolysis

noun    (Concise Encyclopedia)

Process in which a protein is broken down partially, into peptides, or completely, into amino acids, by proteolytic enzymes, present in bacteria and in plants but most abundant in animals. Proteins in food are attacked in the stomach by pepsin and in the small intestine mainly by trypsin and chymotrypsin from the pancreas. Proteolytic enzymes are secreted as zymogens, which are themselves converted by proteolysis to their active forms. Many other zymogens or precursors undergo proteolysis to form active enzymes or proteins (e.g., fibrinogen to fibrin). In cells, proteolytic degradation of old proteins is part of cellular maintenance.

Browse

Next Word in the Dictionary: proteolytic
Previous Word in the Dictionary: proteoglycan
All Words Near: proteolysis

Seen & Heard

What made you want to look up proteolysis? Please tell us where you read or heard it (including the quote, if possible).