The following Tendemistat description is based on scoop, koning et al. (2003)[1] and Vertesy et al. (1984)[2] :
Tendemistat is a 74 amino acid protein produced by Streptomyces tendae. Though it has been suggested to perform a regulatory role in its natural producer[3], its native purpose remains unclear. However, tendamistat was found to be a potentalpha-amylase inhibitor which specifically affects mammalian enzymes, and has no effect on alpha-amylases from other sources (e.g. plant and bacteria). Tendamistat (green) forms a tight stoichiometric 1:1 complex with alpha amylase (orange), a crystal structure of the complex was determined to a 2.5 A resolution [4] .
Some crystal structures have been determined for tendamistat the latest being determined to a 0.93 A resolution [5] . The binding of tendamistat to alpha-amylase leads to the steric blockage of the active site of the enzyme.
Structurally tendamistat belongs to the scoop class of all beta proteins since it is exclusivly formed of beta sheets (light blue) .
