... Synthesis of these enzymes as inactive precursors protects the exocrine cells from destructive proteolytic attack.
The pancreas protects itself against self-digestion in another way - by making a specific inhibitor, itself a protein, called pancreatic trypsin inhibitor (p. 235).
Free trypsin can activate not only trypsinogen but also three other digestive zymogens: chymotrypsinogen, procarboxypeptidase, and proelastase; trypsin inhibitor effectively prevents premature production of free proteolytic enzymes within the pancreatic cells.
Lehninger-Nelson-Cox: Principles of Biochemistry, 510.o.
homeostasis : The maintenance of a dynamic steady state by regulatory mechanisms that compensate for changes in external circumstances. ___...
A dalai láma felhívása a világhoz. Az etika fontosabb a vallásnál Ez nagy mondás. A láma urat is meg kell hívnunk a rendünkbe !
"Some proteins endow cells and organisms with the ability to contract, to change shape, or to move about. Actin and myosin function...
We begin in each case by considering the covalent structure of the simple subunits (amino acids, fatty acids, monosaccharides, and nucleoti...