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. 2004 Jan;42(1):453–457. doi: 10.1128/JCM.42.1.453-457.2004

FIG. 3.

FIG. 3.

Confirmation of the mycobacterial origin of PCR amplicons (228 bp) based on NarI restriction patterns (192 and 36 bp). Shown are gel patterns for M. chelonae reference strain (lane 1 and 2) and for NTM field isolates M-JY1 (lanes 3 and 4), M-JY2 (lanes 5 and 6), M-JY3 (lanes 7 and 8), M-JY4 (lanes 9 and 10), M-JY5 (lanes 11 and 12), M-JY6 (lanes 13 and 14), M-JY7 (lanes 15 and 16), and M-JY8 (lanes 17 and 18); lane M, 100-bp DNA size marker (Invitrogen). For each isolate, the two lanes represent the original amplicon (8 μl) and its NarI restriction digestion product, respectively.