Cystatin body fluid concentrations

Structure of Human Cystatin C and Its Concentration in Body Fluids. 72... 

The distribution in body fluids of the different cystatins is remarkably different (Fig. 3). For example, while cystatin C is present in appreciable amounts in all investigated body fluids, cystatins S, SN, and SA are virtually confined to saliva, tears, and seminal plasma (Al). Cystatin D is present only in saliva and tear fluid (Al, F3). In some body compartments, e.g., spinal fluid, cystatin C represents more than 90% of the total molar concentration of cysteine protease... 

Fig. 3. Molar concentrations of cystatins and < 2-macroglobulin in 10 human body fluids.

Table 4 displays some of the physicochemical properties of cystatin C as well as its normal concentration in body fluids. 

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See also in sourсe #XX -- [ , ]

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