The Genome Channel: a browser to a uniform first-pass annotation of genomic DNA

Locking means for securing the edges of adjacent sides positioned at ninety degrees to each other in a prefabricated enclosure. Each side includes a flange extending along the side edge with the flanges being generally perpendicular to its connected side for coacting with the edge of adjoining sides. Each side and flange including a plurality of integral U-shaped ribs positioned perpendicular to each edge of each side. The feet of the U being connected in the plane of the side and flange, and the closed end of the U extending outwardly. The corresponding ribs of adjacent sides being sized to coact; the ribs of one side fitting snugly inside the ribs of an adjoining side for providing strength and rigidity to the enclosure when fastened together. Holding means positioned adjacent the edge and in each of the ribs of the side which is positioned inside of an adjoining side. The edge of the side which is positioned outside of an adjoining side including an opening in the closed end of the U-shaped rib and in registry with the holding means for inserting a fastener.