A four-straight-line model for the proteinase-binding characteristics of human blood serum.
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ABSTRACT: Kinetic evaluation of the capacity of human blood serum to form complexes with bovine trypsin generated partition profiles that may be approximated by a series of four intersecting straight lines. Such profiles are suggested to reflect the binding of trypsin to alpha 2-macroglobulin in a kinetically preferred mode (alpha-sites), followed by a subsidiary mode (beta-sites) and finally to alpha 1-antitrypsin. The form of the profile, in addition to revealing a hitherto unreported proteinase-binding capability of alpha 2-macroglobulin (beta-sites), also indicates that saturation of alpha-sites corresponds to a molar binding ratio of alpha 2-macroglobulin/trypsin of 1:2. Finally the profile provides, for certain pathological states, a clinically valuable characteristic.
SUBMITTER: Topping RM
PROVIDER: S-EPMC1186399 | biostudies-other | 1979 Feb
REPOSITORIES: biostudies-other
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