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.
Professional sheet pans used in commercial kitchens typically are made of aluminum, with a 1 in (2.5 cm) raised lip around the edge, and in the United States come in standard sizes. The full-size sheet pan is 26 by 18 in (66 by 46 cm), which is too large for most home ovens. A two thirds sheet pan (also referred to as a three quarter size sheet pan) is 21 by 15 in (53 by 38 cm). A half sheet pan is 18 by 13 in (46 by 33 cm); quarter sheets are 9 by 13 in (23 by 33 cm). The half sheet is approximately the same size as mass-market baking sheets found in supermarkets, and the quarter sheet is a common size for rectangular, single-layer cakes.