Restriction patterns (XbaI with KpnI) of clones that hydrolyze MUF-diNAG. (A) Clone identified by screening the library by plaque assay. Lanes: 1, pG1; M, molecular weight marker. (B) Clones identified by screening the library in microtiter plates. Lanes: 1, p2F9; 2, p3A6; 3, p4H11; 4, p5C7; 5, p5F2; 6, p6D5; 7, p6E11; 8, p7C8; 9, p7D9; 10, p7F6; 11, p9D5; 12, p10D3; 13, p14E11; M, molecular weight marker.