Detected instability of lin genes in strain UT26. Shown are products of PCR amplification with primers for linA, -B, -C, -D, and -X and the Tn610-like sequence on total DNA of S. paucimobilis B90 and UT26 isolated from individual clones. Lanes: 1 and 2, Tn610 detection in strain B90 (lane 1) and UT26 (lane 2); 3 and 4, linX in UT26 (lane 3) and B90 (lane 4); 5 and 6, linD in UT26 (lane 5) and B90 (lane 6); 7 and 8, linC in UT26 (lane7) and B90 (lane 8); 9 and 10, linB in UT26 (lane 9) and B90 (lane 10); 11 and 12, linA in UT26 (lane 11) and B90 (lane 12); 13, lambda DNA digested with EcoRI and HindIII.