| protein |
any of a group of complex organic compounds which contain carbon, hydrogen, oxygen, nitrogen, and usually sulfur, the characteristic element being nitrogen. Proteins, the principal constituents of the protoplasm of all cells, are of high molecular weight and consist essentially of combinations of α-amino acids in peptide linkages. Twenty different amino acids are commonly found in proteins, and each protein has a unique genetically defined amino acid sequence which determines its specific shape and function. Their roles include enzymatic catalysis, transport and storage, coordinated motion, nerve impulse generation and transmission, control of growth and differentiation, immunity, and mechanical suppport.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
|---|---|
| protein b. |
a buffer system involving proton donor and proton acceptor groups of the amino acid residues of proteins.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| protein C i. |
the primary inhibitor of activated anticoagulant protein C; it is a glycoprotein, Mr 57,000, of the serpin superfamily of proteinase inhibitors and also inhibits several other proteins involved in coagulation and urokinase. Called also plasminogen activator inhibitor 3.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| protein c. |
a watery pathway through the interstices of a protein molecule by which ions and small molecules can cross a membrane into or out of a cell by diffusion; protein channels play a vital role in depolarization and repolarization of nerve and muscle fibers, and may have physical characteristics such as shape or diameter that particularly attract certain ions.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| protein catabolic r. |
a calculation derived by multiplying 6.25 times the amount of nitrogen in grams excreted in the urine over a given time period; this represents the amount of protein catabolized by the body in excess of protein synthesis. In a healthy steady state of nitrogen balance it approximates the amount of protein in the diet.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|