circ (400,290) 4 /dbget-bin/www_bget?C00039 C00039 (DNA) circ (400,189) 4 /dbget-bin/www_bget?C00039 C00039 (DNA) circ (128,238) 4 /dbget-bin/www_bget?C03438 C03438 (beta-Lactam antibiotics) rect (292,282) (338,299) /dbget-bin/www_bget?xca:xccb100_0049 xccb100_0049 rect (463,181) (509,198) /dbget-bin/www_bget?xca:xccb100_1156+xca:xccb100_1281 xccb100_1156, xccb100_1281 (ampC1) rect (41,107) (210,142) /kegg-bin/show_pathway?xca00311 xca00311: Penicillin and cephalosporin biosynthesis rect (40,45) (237,70) /dbget-bin/www_bget?xca00312 xca00312: beta-Lactam resistance