Enzymic approach to eurythermalism of Alvinella pompejana and its episymbionts.

ABSTRACT: The equilibrium model, which describes the influence of temperature on enzyme activity, has been established as a valid and useful tool for characterizing enzyme eurythermalism and thermophily. By introducing K(eq), a temperature-dependent equilibrium constant for the interconversion between E(act), the active form of enzyme, and E(inact), a reversibly inactive form of enzyme, the equilibrium model currently provides the most complete description of the enzyme-temperature relationship; its derived parameters are intrinsic and apparently universal and, being derived under reaction conditions, potentially have physiological significance. One of these parameters, T(eq), correlates with host growth temperature better than enzyme stability does. The vent-dwelling annelid Alvinella pompejana has

SUBMITTER: Lee CK 

PROVIDER: S-EPMC2227733 | biostudies-literature | 2008 Feb

REPOSITORIES: biostudies-literature