The binding specificity of different E-boxes is found to be essential in their function. E-boxes with different functions have a different number and type of binding factor. The consensus sequence of the E-box is usually CANNTG; however, there exist other E-boxes of similar sequences called noncanonical E-boxes.
The more common sizes of cookie sheets are tagged as Full, Three Quarters, Half and Quarter. For âHow big is a cookie sheet?â in the Full-size variety, this one measures approximately 26 inches in width by 18 inches in depth and about an inch thick.
1 A 1/2 Sheet Cake Pan is 11 by 15 inches, which will usually serve 18 to 40 people. This size is a lovely option for an anniversary party or interoffice party.  A full Sheet Cake Pan is 18 by 24 inches, which will usually serve 48 to 96 people. This is a fabulous event cake for charities and grand company celebrations.