Lipase lid morph
From Proteopedia
For an introduction to the structure and function of lipase, please see the article Lipase. This Lipase lid morph article is a supplement to the main article on Lipase.
Candida rugosa lipase (triacylglycerol hydrolase) has been observed in two conformations, with the "lid" closed (1trh) or open (1lpm)[1]. When open, substrate can access the catalytic triad, Ser209, Glu341, and His449[1]