Natural and re-designed PBPs are small proteins; e.g., the receptor for TNT (2,4,6 - trinitrotoluene) is 4 × 7 × 8 nm in size [5] and thus should freely diffuse in the plant apoplast, which allows unrestricted movement of small proteins (less than approximately 50 nm)[13]. (journals.plos.org)
Defined by its welcoming shapes and elegant slats, the Kafelonia Collection is generously proportioned to allow for unrestricted movement in the chair while offering lasting comfort. (westminsterteak.com)
The optimum free space required at the bottom is one quarter (25 %) of the bag, which will ensure unrestricted movement of the legs with kicking room for maximum comfort. (slumbersafe.com)